this is a really good little discussion going on here... but wow... this is a really long one that has alot of different topics going on.... were not even talking about free mods any more... i enjoy it but wow!!!

 

I was thinking about doing the "dumped exhaust" on my '90 5.7L. I got under it though, and saw that if I cut the exhaust before the muffler it will not quite clear the cab (reg cab). First of all, I don't want to have to worry about fumes inside the cab while idling, and secondly, is it worth the loss of torque to gain the extra horsepower?

 

On a 90' 5.7 you can do the dumped without losing torque. And to avoid fumes I would add an extension to the pipe before the dump.

 

i have a reg cab and they dump after the cab but before the axle. it will have a heavier interior reasonance to it tho.

 

Thanks, I think I will try it out in the next couple of days. Stopspazinout, what would you recommend doing first to my truck for decent gains?

 

Ghetto.

 

I did lose some torque when I went with the 3" in dual 2 1/2" out with dumps. All the other things I did make of for the loss of torque. I did feel an increase in power in RPM's 2500+.

 

I would never do any of this to my truck. its such a patch up job on everything. I wouldnt be able to live with my self after doing any of this. I would be worried 24/7 that something is just going to die.

 

2 years and everything runs fine.

 

I've got a question about mod# 4 "Throttle Body Coolant Bypass", so what happens when it the coolants gettin hot and you boil the fuel