Current Classifieds

Need Brakes for 1971 Pinto
Date: 04/27/2018 11:48 pm
Wanted 73 pinto squire wagon
Date: 05/09/2020 11:59 am
1976-1979 FORD PINTO BOBCAT FRONT HOOD TRIM MOLDING D4FZ-16856-A OEM EXCELLENT

Date: 09/22/2020 11:33 pm
1974 Pinto Inside Rear View Mirror & Brake Pedal Pad

Date: 02/18/2017 04:41 pm
Need Interior Panels
Date: 07/09/2018 04:59 pm
1971 Pinto Runabout turn key driver

Date: 07/01/2019 12:23 pm
73 Runabout

Date: 11/20/2017 03:19 pm
72 Pinto parts
Date: 11/14/2019 10:46 pm
1975 Pinto wagon emissions decal wanted
Date: 09/20/2018 11:01 pm
Looking for license plate bracket, interior parts 72' Runabout
Date: 04/12/2017 08:15 am
V8 rear end
Date: 04/12/2018 10:57 am
Front sway bar frame brackets
Date: 07/13/2017 01:05 am

Author Topic: 1978 Pinto 2.3L Jetting  (Read 2381 times)

0 Members and 1 Guest are viewing this topic.

Offline Spark_Assault

  • Pinto Driver
  • *
  • Posts: 1
  • FeedBack: +0/-0
  • Gender: Male
  • Another Pinto Driver

  • Total Badges: 2
    Badges: (View All)
    Topic Starter Fifth year Anniversary
1978 Pinto 2.3L Jetting
« on: September 10, 2011, 04:20:40 PM »
Hello,

I'm  trying to find out what the stock jetting is for a 2.3L ford pinto.  My car is currently jetted as follows:

Primary:
Main 147 flow rate (1.01mm jet diameter)
Air Corrector 185

Secondary:
Main 219 flow rate (1.27mm jet diameter)
Air Corrector 170

With that configuration, the car runs lean and backfires through the carb.  If I swap main jets, so that the Primary runs off the 219 jet, the car runs much better.

I've been doing some research, and as far as I can tell the Pinto comes stock with 140 (1.4mm) or 135 (1.35mm) main jets.

Thanks for any help.

-Matt

Offline dave1987

  • Pinto Sr. Master
  • ******
  • Posts: 3431
  • FeedBack: +25/-0
  • Gender: Male

  • Total Badges: 11
    Badges: (View All)
    Topic Starter Signature Tenth year Anniversary Poll Voter Mobile User Apple User Linux User Windows User 1000 Posts Fifth year Anniversary Photographer
Re: 1978 Pinto 2.3L Jetting
« Reply #1 on: September 10, 2011, 08:16:37 PM »
I do not know exactly what they are stock, but it may also depend onwether or or the car has a/c..
1978 Ford Pinto Sedan - Family owned since new

Remembering Jeff Fitcher with every drive in my 78 Sedan.

I am a Pinto Surgeon. Fixing problems and giving Pintos a chance to live again is more than a hobby, it's a passion!

RSM

  • Guest
Re: 1978 Pinto 2.3L Jetting
« Reply #2 on: September 10, 2011, 10:20:38 PM »
Have you pulled the plugs to see if the entire engine is running lean or maybe just one cylinder? You may have 1 cylinder lean due to an intake leak or something and the bigger jet helps to compensate that issue. You didn't really give too much info on the engine itself so a little more would be helpful. Did the engine just start backfiring all at once or is this an issue that started some time ago and has just got worse? How many miles on the engine? Any recent engine work? Did you buy the car and this is what it does since you bought it?....

Offline fast34

  • Pinto Sr. Member
  • ****
  • Posts: 270
  • FeedBack: +8/-0
  • Gender: Male

  • Total Badges: 5
    Badges: (View All)
    Topic Starter Tenth year Anniversary Apple User Mobile User Fifth year Anniversary
Re: 1978 Pinto 2.3L Jetting
« Reply #3 on: September 19, 2011, 11:01:25 PM »
You may have to "jet up" if there is ethanol in your fuel.. I have a organizer drawer full of those jets, so many different numbers.. Weber jets are the same, most 32/36 webers cone with 140/140 mains and I can't remember the air jet sizes. Google it and there is a site that has a list of what jets came it what, for Webers. It'll get you close. I was looking for fuel mileage and no matter what combo it yielded about the same...