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Why the Ford Pinto didn’t suck

Why the Ford Pinto didn't suckThe Ford Pinto was born a low-rent, stumpy thing in Dearborn 40 years ago and grew to become one of the most infamous cars in history. The thing is that it didn't actually suck. Really.

Even after four decades, what's the first thing that comes to mind when most people think of the Ford Pinto? Ka-BLAM! The truth is the Pinto was more than that — and this is the story of how the exploding Pinto became a pre-apocalyptic narrative, how the myth was exposed, and why you should race one.

The Pinto was CEO Lee Iacocca's baby, a homegrown answer to the threat of compact-sized economy cars from Japan and Germany, the sales of which had grown significantly throughout the 1960s. Iacocca demanded the Pinto cost under $2,000, and weigh under 2,000 pounds. It was an all-hands-on-deck project, and Ford got it done in 25 months from concept to production.

Building its own small car meant Ford's buyers wouldn't have to hew to the Japanese government's size-tamping regulations; Ford would have the freedom to choose its own exterior dimensions and engine sizes based on market needs (as did Chevy with the Vega and AMC with the Gremlin). And people cold dug it.

When it was unveiled in late 1970 (ominously on September 11), US buyers noted the Pinto's pleasant shape — bringing to mind a certain tailless amphibian — and interior layout hinting at a hipster's sunken living room. Some call it one of the ugliest cars ever made, but like fans of Mischa Barton, Pinto lovers care not what others think. With its strong Kent OHV four (a distant cousin of the Lotus TwinCam), the Pinto could at least keep up with its peers, despite its drum brakes and as long as one looked past its Russian-roulette build quality.

But what of the elephant in the Pinto's room? Yes, the whole blowing-up-on-rear-end-impact thing. It all started a little more than a year after the Pinto's arrival.

 

Grimshaw v. Ford Motor Company

On May 28, 1972, Mrs. Lilly Gray and 13-year-old passenger Richard Grimshaw, set out from Anaheim, California toward Barstow in Gray's six-month-old Ford Pinto. Gray had been having trouble with the car since new, returning it to the dealer several times for stalling. After stopping in San Bernardino for gasoline, Gray got back on I-15 and accelerated to around 65 mph. Approaching traffic congestion, she moved from the left lane to the middle lane, where the car suddenly stalled and came to a stop. A 1962 Ford Galaxie, the driver unable to stop or swerve in time, rear-ended the Pinto. The Pinto's gas tank was driven forward, and punctured on the bolts of the differential housing.

As the rear wheel well sections separated from the floor pan, a full tank of fuel sprayed straight into the passenger compartment, which was engulfed in flames. Gray later died from congestive heart failure, a direct result of being nearly incinerated, while Grimshaw was burned severely and left permanently disfigured. Grimshaw and the Gray family sued Ford Motor Company (among others), and after a six-month jury trial, verdicts were returned against Ford Motor Company. Ford did not contest amount of compensatory damages awarded to Grimshaw and the Gray family, and a jury awarded the plaintiffs $125 million, which the judge in the case subsequently reduced to the low seven figures. Other crashes and other lawsuits followed.

Why the Ford Pinto didn't suck

Mother Jones and Pinto Madness

In 1977, Mark Dowie, business manager of Mother Jones magazine published an article on the Pinto's "exploding gas tanks." It's the same article in which we first heard the chilling phrase, "How much does Ford think your life is worth?" Dowie had spent days sorting through filing cabinets at the Department of Transportation, examining paperwork Ford had produced as part of a lobbying effort to defeat a federal rear-end collision standard. That's where Dowie uncovered an innocuous-looking memo entitled "Fatalities Associated with Crash-Induced Fuel Leakage and Fires."

The Car Talk blog describes why the memo proved so damning.

In it, Ford's director of auto safety estimated that equipping the Pinto with [an] $11 part would prevent 180 burn deaths, 180 serious burn injuries and 2,100 burned cars, for a total cost of $137 million. Paying out $200,000 per death, $67,000 per injury and $700 per vehicle would cost only $49.15 million.

The government would, in 1978, demand Ford recall the million or so Pintos on the road to deal with the potential for gas-tank punctures. That "smoking gun" memo would become a symbol for corporate callousness and indifference to human life, haunting Ford (and other automakers) for decades. But despite the memo's cold calculations, was Ford characterized fairly as the Kevorkian of automakers?

Perhaps not. In 1991, A Rutgers Law Journal report [PDF] showed the total number of Pinto fires, out of 2 million cars and 10 years of production, stalled at 27. It was no more than any other vehicle, averaged out, and certainly not the thousand or more suggested by Mother Jones.

Why the Ford Pinto didn't suck

The big rebuttal, and vindication?

But what of the so-called "smoking gun" memo Dowie had unearthed? Surely Ford, and Lee Iacocca himself, were part of a ruthless establishment who didn't care if its customers lived or died, right? Well, not really. Remember that the memo was a lobbying document whose audience was intended to be the NHTSA. The memo didn't refer to Pintos, or even Ford products, specifically, but American cars in general. It also considered rollovers not rear-end collisions. And that chilling assignment of value to a human life? Indeed, it was federal regulators who often considered that startling concept in their own deliberations. The value figure used in Ford's memo was the same one regulators had themselves set forth.

In fact, measured by occupant fatalities per million cars in use during 1975 and 1976, the Pinto's safety record compared favorably to other subcompacts like the AMC Gremlin, Chevy Vega, Toyota Corolla and VW Beetle.

And what of Mother Jones' Dowie? As the Car Talk blog points out, Dowie now calls the Pinto, "a fabulous vehicle that got great gas mileage," if not for that one flaw: The legendary "$11 part."

Why the Ford Pinto didn't suck

Pinto Racing Doesn't Suck

Back in 1974, Car and Driver magazine created a Pinto for racing, an exercise to prove brains and common sense were more important than an unlimited budget and superstar power. As Patrick Bedard wrote in the March, 1975 issue of Car and Driver, "It's a great car to drive, this Pinto," referring to the racer the magazine prepared for the Goodrich Radial Challenge, an IMSA-sanctioned road racing series for small sedans.

Why'd they pick a Pinto over, say, a BMW 2002 or AMC Gremlin? Current owner of the prepped Pinto, Fox Motorsports says it was a matter of comparing the car's frontal area, weight, piston displacement, handling, wheel width, and horsepower to other cars of the day that would meet the entry criteria. (Racers like Jerry Walsh had by then already been fielding Pintos in IMSA's "Baby Grand" class.)

Bedard, along with Ron Nash and company procured a 30,000-mile 1972 Pinto two-door to transform. In addition to safety, chassis and differential mods, the team traded a 200-pound IMSA weight penalty for the power gain of Ford's 2.3-liter engine, which Bedard said "tipped the scales" in the Pinto's favor. But according to Bedard, it sounds like the real advantage was in the turns, thanks to some add-ons from Mssrs. Koni and Bilstein.

"The Pinto's advantage was cornering ability," Bedard wrote. "I don't think there was another car in the B. F. Goodrich series that was quicker through the turns on a dry track. The steering is light and quick, and the suspension is direct and predictable in a way that street cars never can be. It never darts over bumps, the axle is perfectly controlled and the suspension doesn't bottom."

Need more proof of the Pinto's lack of suck? Check out the SCCA Washington, DC region's spec-Pinto series.

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My Somewhat Begrudging Apology To Ford Pinto

ford-pinto.jpg

I never thought I’d offer an apology to the Ford Pinto, but I guess I owe it one.

I had a Pinto in the 1970s. Actually, my wife bought it a few months before we got married. The car became sort of a wedding dowry. So did the remaining 80% of the outstanding auto loan.

During a relatively brief ownership, the Pinto’s repair costs exceeded the original price of the car. It wasn’t a question of if it would fail, but when. And where. Sometimes, it simply wouldn’t start in the driveway. Other times, it would conk out at a busy intersection.

It ranks as the worst car I ever had. That was back when some auto makers made quality something like Job 100, certainly not Job 1.

Despite my bad Pinto experience, I suppose an apology is in order because of a recent blog I wrote. It centered on Toyota’s sudden-acceleration problems. But in discussing those, I invoked the memory of exploding Pintos, perpetuating an inaccuracy.

The widespread allegation was that, due to a design flaw, Pinto fuel tanks could readily blow up in rear-end collisions, setting the car and its occupants afire.

People started calling the Pinto “the barbecue that seats four.” And the lawsuits spread like wild fire.

Responding to my blog, a Ford (“I would very much prefer to keep my name out of print”) manager contacted me to set the record straight.

He says exploding Pintos were a myth that an investigation debunked nearly 20 years ago. He cites Gary Schwartz’ 1991 Rutgers Law Review paper that cut through the wild claims and examined what really happened.

Schwartz methodically determined the actual number of Pinto rear-end explosion deaths was not in the thousands, as commonly thought, but 27.

In 1975-76, the Pinto averaged 310 fatalities a year. But the similar-size Toyota Corolla averaged 313, the VW Beetle 374 and the Datsun 1200/210 came in at 405.

Yes, there were cases such as a Pinto exploding while parked on the shoulder of the road and hit from behind by a speeding pickup truck. But fiery rear-end collisions comprised only 0.6% of all fatalities back then, and the Pinto had a lower death rate in that category than the average compact or subcompact, Schwartz said after crunching the numbers. Nor was there anything about the Pinto’s rear-end design that made it particularly unsafe.

Not content to portray the Pinto as an incendiary device, ABC’s 20/20 decided to really heat things up in a 1978 broadcast containing “startling new developments.” ABC breathlessly reported that, not just Pintos, but fullsize Fords could blow up if hit from behind.

20/20 thereupon aired a video, shot by UCLA researchers, showing a Ford sedan getting rear-ended and bursting into flames. A couple of problems with that video:

One, it was shot 10 years earlier.

Two, the UCLA researchers had openly said in a published report that they intentionally rigged the vehicle with an explosive.

That’s because the test was to determine how a crash fire affected the car’s interior, not to show how easily Fords became fire balls. They said they had to use an accelerant because crash blazes on their own are so rare. They had tried to induce a vehicle fire in a crash without using an igniter, but failed.

ABC failed to mention any of that when correspondent Sylvia Chase reported on “Ford’s secret rear-end crash tests.”

We could forgive ABC for that botched reporting job. After all, it was 32 years ago. But a few weeks ago, ABC, in another one of its rigged auto exposes, showed video of a Toyota apparently accelerating on its own.

Turns out, the “runaway” vehicle had help from an associate professor. He built a gizmo with an on-off switch to provide acceleration on demand. Well, at least ABC didn’t show the Toyota slamming into a wall and bursting into flames.

In my blog, I also mentioned that Ford’s woes got worse in the 1970s with the supposed uncovering of an internal memo by a Ford attorney who allegedly calculated it would cost less to pay off wrongful-death suits than to redesign the Pinto.

It became known as the “Ford Pinto memo,” a smoking gun. But Schwartz looked into that, too. He reported the memo did not pertain to Pintos or any Ford products. Instead, it had to do with American vehicles in general.

It dealt with rollovers, not rear-end crashes. It did not address tort liability at all, let alone advocate it as a cheaper alternative to a redesign. It put a value to human life because federal regulators themselves did so.

The memo was meant for regulators’ eyes only. But it was off to the races after Mother Jones magazine got a hold of a copy and reported what wasn’t the case.

The exploding-Pinto myth lives on, largely because more Americans watch 20/20 than read the Rutgers Law Review. One wonders what people will recollect in 2040 about Toyota’s sudden accelerations, which more and more look like driver error and, in some cases, driver shams.

So I guess I owe the Pinto an apology. But it’s half-hearted, because my Pinto gave me much grief, even though, as the Ford manager notes, “it was a cheap car, built long ago and lots of things have changed, almost all for the better.”

Here goes: If I said anything that offended you, Pinto, I’m sorry. And thanks for not blowing up on me.

Ranger RR Cam and Big valves? Worth it or not?

Started by Drexx, January 13, 2017, 01:11:06 PM

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dick1172762

BTW I used anti pump up lifters with my Ranger cam, and it will rev in excess of 5000 rpm if necessary.
Its better to be a has-been, than a never was.

The Whistler

Quote from: Wittsend on August 11, 2017, 11:57:01 AM
I hope I'm not being mis-understood.  It is just a curiosity that if I had two sets of everything I'd take the time to compare.  Call it a frivolous hobby but it is my time to use as I choose.  I'm not out to prove the RR cam is some high performance item.  For sure the RR cam has less lift than a slider cam. So, I'm just wanting to know if the ramp speed is faster to compensate for less lift and thus giving a similar end result as a slider cam.  Of all the information I've seen the comparison is the end results and not a more detailed understanding of how these results came about (like the degree increment/lift rate I'd like to know).  The underlying implication that I'm wasting my time to try and do so is not warranted.  I'm not out to prove a point or find facts for argument.  I'm just trying to quell a personal curiosity.

I understand. It is nothing special about that cam. The answers you seek are simple and are staring you in the face! They do not require anything elaborate to find all you have to do is look at what Ford was trying to do at the time its just that simple! If you understand that then you will understand a lot more! People on other Forums have been on this witch hunt before and there is a lot of Bogus crap on the Net! None have proven any of this to be true! The answer is and always will be simple!
Turbo is a way of life

dick1172762

I think it do what your asking for, you would need to start from the center of both cam in both X and Y. Only then would you be able to plot the cams to each other. I'm sure there is other ways, but this sounds like the way to get what your asking for.
Its better to be a has-been, than a never was.

Wittsend

Seems to me a degree wheel (pointer) and a dial indicator would do the job.  I'm just looking to plot lift at specific degrees.  Bring the cam to the initial point of lift, record the lift, rotate another 5 degrees, record lift. Can't see where it would take more than 10-15 minutes a cam.  Higher lift numbers at a common degree would tell whether the ramp speed is faster - or not.

dick1172762

To do what you want, it would take a set up like the " the cam doctor" that will show the cam profile in real time. Not cheap but necessary to get the know how your asking for.
Its better to be a has-been, than a never was.

Wittsend

Quote from: The Whistler on August 09, 2017, 06:38:34 PM
Ok I see! The only benefit of the RR cam is it is a roller and it can be had for next to nothing! It is a good replacement for a stock slider that is it! I see what you are looking for and I hate to see you searching for a light at the end of this tunnel when there is none! But good luck you will find what all others before you have! I wasted my time when I could have been doing something better! Good luck and best wishes on chasing Internet Folk Lore! All of this has been debunked before. Since one or more of us does not understand this cam I will make it simple. The cam is a downgrade which is why it works the way it does, it was intended for a truck and better emissions. It will last longer than a slider cam. Do research you will find ford had a problem with slider cam failure for the entire life of the Lima and the roller solved this! So please keep us informed good luck and best wishes!

I hope I'm not being mis-understood.  It is just a curiosity that if I had two sets of everything I'd take the time to compare.  Call it a frivolous hobby but it is my time to use as I choose.  I'm not out to prove the RR cam is some high performance item.  For sure the RR cam has less lift than a slider cam. So, I'm just wanting to know if the ramp speed is faster to compensate for less lift and thus giving a similar end result as a slider cam.  Of all the information I've seen the comparison is the end results and not a more detailed understanding of how these results came about (like the degree increment/lift rate I'd like to know).  The underlying implication that I'm wasting my time to try and do so is not warranted.  I'm not out to prove a point or find facts for argument.  I'm just trying to quell a personal curiosity.

dick1172762

I have talked to several Pinto gear heads with the Ranger cam in their Pinto and 100% of them liked the cam. I have one in my Pinto and think its one of the best mod I have done. Smooth idle / more low in power / all in all, a better running motor. Big deal, it will not rev to 7000 rpm. So what! Most Pinto never see any thing over 3000 rpm. Try it / you'll like it.
Its better to be a has-been, than a never was.

The Whistler

Ok I see! The only benefit of the RR cam is it is a roller and it can be had for next to nothing! It is a good replacement for a stock slider that is it! I see what you are looking for and I hate to see you searching for a light at the end of this tunnel when there is none! But good luck you will find what all others before you have! I wasted my time when I could have been doing something better! Good luck and best wishes on chasing Internet Folk Lore! All of this has been debunked before. Since one or more of us does not understand this cam I will make it simple. The cam is a downgrade which is why it works the way it does, it was intended for a truck and better emissions. It will last longer than a slider cam. Do research you will find ford had a problem with slider cam failure for the entire life of the Lima and the roller solved this! So please keep us informed good luck and best wishes!
Turbo is a way of life

Wittsend

Well, I'm not looking for ultimate HP.  At 60 years old a stock T/C engine is enough for me. Being I have the small IHI '88 turbo high RPM breathing is not going to be a benefit.  I just know a few years ago when I got my RR cam (and all 8 roller rockers) they were only $25 total at a Pick Your Part 50% off sale. So, I did not considered it a big expense.


Dick, I know the 4M site has a lot of info. I just don't recall if they ever mapped the lift at every 5 or 10 degrees and compared it to the slide cam.  That is where my curiosity is. Does the ramp profile (for lack of a better term) "bulge" when compared to the slide cam??? Hopefully the drawing (yes, I have limited skills) will illustrate what I mean. Solid is the (assumed) slide cam profile and dashed is the (assumed) roller profile.  The duration and the lift are equal but the speed (some may say abruptness) that the cam moves the valve to a higher lift occurs sooner though ultimately total lift is equal.  Thus the potential to get more air/fuel in the cylinder but still retaining the characteristics of a common lift and duration. This is what I'm wondering about the RR cam profile.

The Whistler

I can tell you for sure the gains you will get from that combination are not worth the expense! Now add a custom cam and the right springs you have something! I would not waste mine or anyone else time with such a bad combination! Spending all that hard earned time and cash and Handicap it with stock cam REALLY! What are you thinking!
Turbo is a way of life

dick1172762

This has been talked about many times at  http://www.4m.net  archives and yes its still a bucket of worms.
Its better to be a has-been, than a never was.

Wittsend

I'd be curious to know the ramp difference of the RR cam to the slider cam.  It might be like a NHRA "Stocker" cam that legally has factory lift and duration but a very fast ramp. This gets the valve to a higher lift compared with a stock cam at a similar point of duration. The roller would allow for that type of grind. If they had a similar LSA but the RR cam had a greater overlap it might be an indicator.

OK, whose got a degree wheel, a dial indicator and a lot of time on their hands..., anybody..., anybody,... anybody?

65ShelbyClone

Something the turbo crowd does to get more zip out of a Ranger roller is retard the cam timing. It might get you something useful up to 6000-6500, but it's still not a rev-happy cam.
'72 Runabout - 2.3T, T5, MegaSquirt-II, 8", 5-lugs, big brakes.
'68 Mustang - Built roller 302, Toploader, 9", etc.

Pinturbo75

the biggest gains on port work to the head would not be the roof.... the short side radius of the runners and bowl work behind the valve head along with unshrouding the chambers...not upgrading springs is bull too/  valves can float on a stock head at below stock redline of 6250..if you plan on going bigger later as in cam.... over 500 lift id have the valve guide bosses milled down .... spring retainers can contact vavle seals and damage them..
75 turbo pinto trunk, megasquirt2, 133lb injectors, bv head, precision 6265 turbo, 3" exhaust,bobs log, 8.8, t5,, subframe connectors, 65 mm tb, frontmount ic, traction bars, 255 lph walbro,
73 turbo pinto panel wagon, ms1, 85 lb inj, fmic, holset hy35, 3" exhaust, msd, bov,

dick1172762

We need one of those experts on 4m.net to try the early/late rocker arm on a stock 2300 on a dyno. Who knows? We maybe looking at a 50 HP gain.
Its better to be a has-been, than a never was.

Wittsend

OK, the link came in clean this time. Not sure what happened earlier. Here is the "Great Early/Late Roller Rocker Debate."  I know we discussed this before I'll search (again) to see if I can find the link here at the PCCA.

This is the much disputed argument FOR the ratio increase with an early roller cam/later roller rocker.
http://www.route66hotrodhigh.com/2300Cams.html

This is the much touted argument AGAINST it being feasible.
http://www.4m.net/showthread.php?318610-2-3-roller-sliders-rocker-question

And here is our own PCCA "in house" debate.
http://www.fordpinto.com/it's-all-about-the-turbo/ranger-cam-for-a-87-turbo-coupe-engine-for-my-'74-pangra/

I guess we never did get to a consensus.  I thought for sure there was a site somewhere where the guy showed the two different rockers and the end results - as in he tested the scenario not just talked about it. I'll keep looking. At any rate it would require an older roller cam in a newer, small stemmed head, or grinding the side clearance on newer rollers (with an older roller cam) a point people dispute can be done at all (hardened metal) much less the strength of the rocker when done.

... It just dawned on me:  I believe the point was with the larger ratio rocker the wheel is back farther from being directly over the vertical center of the cam.  Think of one cam as having the highest lift at the 6 O'clock position.  Now, think of the roller being offset towards the lifter (higher ratio) this would cause the high spot of the cam to line directly with the roller high spot at the 7 O'clock position. In theory the distance between the high spot of the cam and the roller increases. This is because the roller is moving in a tangent to the circular rotation of the cam high spot. I believe this is what causes the higher ratio to show NO increase in lift.

dick1172762

The early rockers / late rockers is a bucket of Vega worms (the worst kind). Several different people on 4m have as many different ideas about this as Trump has about the CIA. Matters little because the rockers are difference size's at the valve stem slot. Early rockers will work on both early and late cams. There are two ways to use late rockers on an early cam. The slot in the late rocker can be made bigger or the valve stem made smaller. Both are very hard material's and would require HIGH tech workmanship as in $$$$. Some so call experts say the rockers have a different ratio and the use of a late rocker would be a HP gain. Not so as I have seen a couple of factory Ford book that say both rockers have the same ratio. Try 4m.net/ or look at the min stock archive I posted on the tech tips.It works for me.
Its better to be a has-been, than a never was.

Wittsend

From what I've read the "net" result of the Ranger Roller cam (also available in certain Mustangs too) is similar to the stock slider 2.3 cam even though the specs. are different.  The lift is less, but I believe the cam ramps up faster being a roller and the total flow remain about the same. There are two roller cams/rockers.  Make sure the set you state having is compatible with the valve stem diameter of the head.  There is also a LOT of chatter on the internet about mixing the two roller cams/rockers for a performance gain but from what I read that seems to be debunked.

I mention this in case you come across the articles. I tried to post a link to the 4M site where this is discussed, but got a lot of scantly clad girls in the side bar and warnings I needed to "update" much of my software, thus I made a hasty retreat.  I believe Dick uses the (legit) 4M site and might be able to provide the proper link.

You asked,"Is it worth it?"  On Ebay they go for about $100+ as a set, used.  I've gotten everything needed at a Pick Your Part 50% off sale for $25. So, my "worth it" may not be yours.  The value is not in performance, but reliability.  Modern oils and and old slider cams are a potential problem waiting to happen.  Lastly I mention this in case you go to try and pull a RR set. The cam removal is often inhibited by the upper radiator cradle. The convenience of a Pick Your Part car is I simply cut the cradle and bent the portion out of the way. There are also two screws holding a metal plate that rides in a groove on the back of the cam.  It is held with Phillips screws. The area between the firewall and the screws is rather limited even with a stubby screwdriver (and they are tight too).  I wound up using a Phillips bit for a power driver and a pair of vise grips to (barely) get the screws removed. The bit is not ideal (a little small) and you need a lot of pressure to keep it seated properly.

Drexx

Thanks for the advice guys. Ill look into just using the RR cam and doing a good valve job. Ill change exhaust from the glass pack back with a 2inch and turn out in front of back tire.
1980 Pinto Runabout

dick1172762

For exhaust pipe size look at the chart from flowmaster at  http://www.roadkillcustoms.com/hot-rods-rat-rods/recommended-exhaust-tubing-sizes.asp#axzz4vgpnoiwy  Big is not always better. 200 HP from a street driven, un-blown 2300 is asking a lot. Could be done but would not be very streetable.
Its better to be a has-been, than a never was.

dick1172762

With the ranger roller cam double springs would not gain you anything as the cam is a low rpm torque cam. Double springs are needed for an all out race 2300. On the street they would be useless and only add to the cam's wear. Same thing with the larger valves. With that cam you already have more flow than the cam can stand. Biggest go fast help for a street Pinto is a 10 pound flywheel. With a stock cam or the Ranger cam you have too big an exhaust system on your car. 2 1/2" dia tubing is way to big when the Ranger header only has a 2" dia outlet. 2" dia exhaust is plenty on the street. After all stock is only 1 3/4" dia. All the mod you asked about are great on a full race 2300 where you can turn it 8000 RPM lap after lap. For what you want they would be a waste of money. Get a real cam and go from there as the Ranger cam is great on a 100% street Pinto. Got one in my Pinto and it's very smooth with lots of low down torque. Hope this helps you.
Its better to be a has-been, than a never was.

Drexx

I have a 80 pinto trunk model with 2.3 in it, T 5 trans, Ranger 3:73 rear axle. I'm about to do head work on it and was wondering about something. I have a roller Ranger cam I plan on installing in it but I thought I might as well go with bigger valves and double springs while I'm in there. chambers will be polished, un-shrouded and CC done to the head. Runners in the intake side of the head will be cleaned up and exhaust will be polished and top of port raised for flow. My question is will I gain any from the bigger valves with that cam or am I wasting my time doing this with a RR cam?  The head is a D port head that is port matched to a t-bird lower intake with a Holley 350 on it. On the exhaust I have a Ranger header going to 2.5 inch exhaust to a glass pack dumping under car. No real rules apply here as its just a fun car I drive and enjoy. I am attempting to keep it mildly street able and not kill my wallet. The lower end is stock for now. distributor will get an Electronic update soon.

Thoughts and suggestions are welcome.  ;D
1980 Pinto Runabout