I ran my car at the dragstrip expecting to run atleast a 13.8 I have a cold air intake, undrive pulleys, headers, an adjustable fuel pressure regulator and a msd ignition coil and 2100 stall. But i ended up running some horrrible times. I ran a faster time when it was stock.

The main reason i ran such bads times was becuase I had some problems with it shifting into 3rd. It red lined and would not shift so i had to left off. Driving it normal it shifts fine.

Could the adj. fuel P. Reg. have anything to do with it. I'm not sure if i set it right or not?

Could it be because of something they did putting on my headers or is my tranny going out?

 

First check the basics on your transmission, mainly TV cable adjustment, fluid level, and fluid condition.

Then I am thinking you are running too rich. What is your fuel pressure set at? Try adjusting it to 43.5 psi and bump it up 1 lbs at a time until your track times slow. Then back down to the quickest time. Makes sense that your tranny is not shifting right. Engine running issues can mimick transmission troubles. My 305 before I tuned it would run to just below the upshift point (roughly 4,400) and just hang until I let up. It was running so rich at that point that it quit pulling. After tuning and getting the fuel and timing right, It ripsup to 4,500 and upshifts immediately.

 

I think your right. I bought a fuel pump and ill put that in. It is running rich. I'll change the plugs too. also When i start my car is smells like gas. I'll check tranny fluid first and mess with the afpr. I had it set at 50 psi at idle. Then i check it after a few runs and it was lower. So ill mess with it.

2 months ago i had a used tranny put in and a 2100 stall. I didnt have any problems until i put the afpr on it.

 

The AFPR is where I would start then. 50 PSI is way too much for the stock programming which is already too rich in PE anyway.

 

The 3-4 clutchpack is burnt up in your transmission. A common failure in 700r4's. My 86 has the same problem.

The richness will not affect the shifting in that way.

 

well, i call the place that put the tranny in tomorrow if my test run doesnt go as plan. Ill tell them what you said and make them fix it for free.

It's an automatic, does it still have one?

 

I lowered the psi to 43.5, im still having the same problem.

I nailed it and it still would not shift into 3rd

That tells me that the tranny is the problem.

 

I've had a 700r4 not shift from 2-3 @ WOT due to the governor being broken. The shaft and the body were just loose and slopping around. The fluid was escaping out of the little gap and the governor circuit would not build up enough pressure to shift into 3rd or if it did, it would immediately downshift to 2nd again.

Oh and overly rich fuel mixtures, while apparently not the problem here CAN and WILL cause the problem seen here. Don't believe me jack up your fuel pressure and your engine will become a weak sister at higher RPMs in gears higher than 1st.

 

Are you unhooking the vacuum when you set your fuel pressure?

 

yes, would that effect it not shifting.

humm, maybe i wasnt.

 

tv cable out of adjustment? my brother said he was messing with something and that could have got it out of adjustment.

He squeezed this throttle thing, it was black on the drivers side and it made the car rev up.

 

Make sure the TV cable is set properly. If its wrong it will limit line pressures and quickly smoke you 700R !!

 

I looked it up and i am almost 100% sure thats the problem now.
I know somebody who knows how to adjust it right.



I hope i already didnt mess up the tranny.