12V governor springs

[Jim Fulmer]

How many of you have jumped your springs to 3k and if so have you noticed any improvement? Right now if I'm pulling on the Highway and have it on the wood, I'm running around 25-2600 till it locks up, from what I've read that is were the pump limiting the fuel begins, I confimed this with DTT over the phone. I'm trying to make a plan(Guages/Plate(230/605)/Converter, you know the drill! ) in that order, Thanks again!



Jim

 

[cumminsgetme]

Huge improvement... . They don't actually give you any more hp ... ... but it sure feels like it.

 

[SlyBones]

Actually I think they might give a small increase in HP since the pump is no longer defueling at higher RPM's. It might depend a little on the individual pump. I have always had 2750 shift points and can get 3000 rpm in third, T/C locked on freeway. However I have a buddy that says he cannot get more than 2750 period. And he see's the boost start dropping down in the 2500-2600 range. I bet his truck shows peak HP increase.



It sure is a nice addition. I have only had it 2 weeks now. My test scenario. Flat freeway. Third gear, O/D off, T/C locked, 2250 rpms, floor it. -- Before springs it would barely get 3000 rpm. only 2750 if on hill, etc. -- After spring kit it shoots towards 3000 without any signs of slowing down. Holds full boost the entire way. Can easily get 3200-3300 RPM. Gets to 3000rpm on fairly decent grade. May not be a dyno increase, but it sure has widened the powerband.

 

[Joseph Donnelly]

Go to the Texas Rally this month.