what is wrong with just tightening the stock gov springs to get it to 3500 or so rpm?

 

Idle might become high. Touchy throttle. 5-speeds are much better candidates for screwing with the governer.

Call this guy,, (936) 856-3121 He can tell you how to turn up the RPM on a 5-speed truck. (Can't do it on the Auto's)

Merrick

 

i was thinking i could just back off on the low idle screw to lower it back down. i called the guy you said and he said to adjust the high idle screw to get a extra 300 or so rpm. might have to give that a try thanks. mike

 

Yes, You can back the low idle screw down to compensate,, but you can only go so far.

Did he help you out with anymore tricks ?

Merrick

 

na, that was all i pryed out of him, nice guy and real helpfull.

 

Mike, on my 98 12v I got rid of about two months ago, taking the high idle screw almost all the way in, I could hit 3500 RPM like it wasn't anything, stock. With the #10 plate and 5 inch exaust, it was crazy how fast it hit 3500, usualy tried to keep it under 3200, but it was hard. Sweet sound out of a 5 inch straight pipe at about 3300 RPM.
Darl

 

It can be done my truck will fuel fully until 3800 with stock springs but you will have to bump up the timming quite a bit.

 

why exactly does it give more rpm when it is screwd in? i would think the govenor would pull it back.

 

Which one is the high idle screw. I was wondering about tightening up the gov. springs on my truck but I was not sure if you could do that or not. I would like to try adjusting the high idle screw but I am not quite sure which one it is. Can anyone tell me what to do and anything else that I may need to do to readjust the idle.
Thanks,
Justin

 

why can't you do it on the autos? I have done it on two of them.
anything past two clicks on any of the trucks I have worked on makes the throttle really jumppy and jerky.
DM01

 

There's another trick to get mroe RPM, but it messes with the TV part. Since it is a 5-speed, you could modify it, but on the Auto, the TV wouldn't work after doing "the mod".

Merrick

 

[quote author=MCummings link=board=7;threadid=22619;start=0#msg212345 date=1069436431]
There's another trick to get mroe RPM, but it messes with the TV part. Since it is a 5-speed, you could modify it, but on the Auto, the TV wouldn't work after doing "the mod".

Merrick
[/quote]
What trick is that? whats a TV :-
DM01 8)

 

Can anyone tell me which one the high idle screw is.
Thanks,
Justin

 

dodgeman01, whoops, missed your replay a while back.

The TV is the Throttle valve and I'm pretty sure it changes the pressures, and shift points in the tranny. I'm just learning auto's, I know just enough to be dangerous to them.

It might be the high idle? I don't remember.

Good Luck
Merrick

 

the high idle screw is the one that the lever hits at wot. it is above the center point on the arm on the back lower section of the pump. about 2" back from the govoner spring cover. it has a anti tamper cover that is not to terrible to remove. mike