Ok, I'm building a 2.5 draw through carbureted turbo motor for my 72 hatchback, I'm wondering if anyone knows if an svo or turbo coupe intercooler will be able to handle the air fuel mixture running through it. if you know please help!!!
You cant use an innercooler on a draw through system. The fuel would condense and fill it up .
ok, thats what i was thinking, just wanted to confirm thoughts. I was also wondering how hard its going to be to get the carburetor to run right, ive heard that they have to run rich.
EFI Turbo = More durablity + more power + eaiser tuning + better drivability
My $.02
Bill
well thats all fine, but ive already built the motor, im just trying to get some info so it doesn't take me as long to tune, so how about it, any draw through turbo tips??
I congratulate you for for thinking about doing the " non norm" these days. As I have TWO Turbo draw through cars I can tell you a little about this process. One of the best things you can do is get a wide band O2 sensor so you can tune the car. There is really no way to know where to start if you don't have one. I am currently tuning both cars starting from an EXTREME rich condition. I have a bunch of jets, power valves, metering blocks etc. This is not just a " replace jet here" tune, there is much more to it. It involves properly sizing the air/fuel passages in the metering block etc by way of filling them and drilling them out. I'll be posting my info in the FAQ section for others that want to take this route.
how do you use an o2 sensor with no PCM??
;D you buy a stand alone system like the one I have. Its an NGK AFX unit and it works great. heres a link to the ebay site. I bought this exact one.
http://cgi.ebay.com/ebaymotors/NGK-NTK-Wide-Band-Powerdex-AFX-Air-Fuel-Gauge-Wideband_W0QQcmdZViewItemQQcategoryZ46100QQihZ014QQitemZ330228366139QQrdZ1QQsspagenameZWDVW
well thats a cool system but it looks a little much $$$ for me, i may end up just sticking to checking spark plugs and changing jets.lol Have any of you guys ever bought parts from Stinger performance??
Quote from: Monster75 on April 23, 2008, 11:17:40 PM
well thats a cool system but it looks a little much $$$ for me....
How much would a full engine rebuild(s) cost??
It won't take much to smoke a turbo-ed engine that is out of tune. There are many folks that needed to build more than one before they get it right.
Be careful and good luck.
Bill
most of your chain auto parts stores have a autometer AR meter..its cheaper than the on Turbopinto72 posted but its not as fancy.
in the 80's I was Racing a Drawthrew system. the meter will be mo9re accurate than a bad plug reading..in most cases its a little too late when you pull a plug...Like pulling the valve cover to see if you have oil pressure...
Also a Boost/Vacuum gauge is well worth the money to see where the boost comes in. and how much Vac your getting till it does. Back then I pulled Vacuum readings at the carb plenum and that was all I had...my system like the larger carbs as well..I drove on the street with a 660 center squirter for three years. And we didn't have much choice of ignitions that retard the timing as you make boost or RPM...This has proven priceless.
Don't be afraid of Draw threw.. after looking around you'll find theirs allot of Myths about it..I had to network in areas where the draw threw was most common..at the time it was the VW racers.
Best of Luck
FrankBoss
Good points there Frank.
My posts here are more aimed at bigger power and higher boost levels. I get PMed a bunch and they tend to be at that level, so I react as if all posts are that way (my bad).
Bill
thats fine, as far as horsepower goes, ive spared no expense on that motor, 2.5 crank, 5.5 rods, wisco pistons, all the esslinger pullies, valve cover and cam ;D, t-4 turbo, holly 500 2bbl, 10 pound flywheel and clutch, and the intake manifold i fabricated is 16th of an in. aluminum thats tig welded. It'll make enough power. By the way guys i forgot to tell you that we build race motors for a living, and if you want a badass 2.3 we are the people to talk to. Goodwin Racing Engines that it.
LOL...
Thats quite a list...What is the T4 off of? Whom built the T4 ..you know whats inside the turbo"trim"?
FrankBoss
www.PintoWorks.com
www.FrankBoss.com
originally im pretty shure it came on of a Tc, but technically this one never came off anything, my dad bought it from ford about 20 years ago, and it sat on the shelf in the race car shop until about half a year ago, it was still in the vacuum sealed package from the factory, the only problem i had was someone stole the oil return line, so ive been trying to find one, but im pretty shure thats the name, T4 right??
If it came off a four cylinder Ford, it's either a Garrett T3 or an IHI.Ford didn't use a T4. You might want to seriously reconsider the wideband.
If that is a photo of your turbo, I suspect it is the IHI that came on the 87 & 88 TC. Blowing up the photo makes it a little fuzzy. It looks like the water lines to the bearing housing are both entering the housing on the engine side like the IHI. The turbine housing has the proportions of the IHI (some distance between the scroll and the discharge flange). The exhaust manifold looks like the stock EFI manifold which has a T3/IHI bolt pattern (the T4 has a wider bolt pattern on its turbine housing inlet flange). If it is the IHI, it may be on the small side for a drag race only 2.5L car. In a street Pinto, it should be fun (fast spool up).
well there another problem...
If your using a TC or Mustang EFI Turbo on a draw threw system you need to have the Turbo retrofitted with the proper seals other wise your just going to toast a perfectly good turbo with fuel wash on the bearings.
Not all compresser wheels can handle the impact of fuel either.
So do your self a favor and reasearch your turbos modle number and application. you might blow it.
Best of Luck
FrankBoss
Ya, there is one thing im looking for, an oil return line, i bought the one from stinger but it doesn't fit, do you guys have any idea where i can get one??