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-   -   need more HP (https://www.dieselbombers.com/chevy-gmc-6-2l-6-5l/78450-need-more-hp.html)

jwyeater 06-21-2011 12:05 PM

need more HP
 
I do alot of pulling and was wanting to know how to get more HP out of this 6.5. I have a 93 gmc 3500 converted to flat bed,single axle 4 x 4, 5 speed. Seem to lose power on hills. Any suggestions?

6.chevysuburban 06-21-2011 02:55 PM

Turn the pump up, put marine injectors in it. If you do that I would suggest putting water injection on it. Then put an exhaust temp gauge on it... That's a must!

Woody35 06-21-2011 08:51 PM

marine injectors wont do much but turn the fuel screw but you need to up the boost a little bit and make your getting fuel to the ip

Crazy 06-21-2011 10:24 PM


Originally Posted by Woody35 (Post 766073)
marine injectors wont do much but turn the fuel screw but you need to up the boost a little bit and make your getting fuel to the ip

X2

jwyeater 06-23-2011 04:11 PM

I have heard about turning pump up, but not sure how to do it. Also, was told , I would need to get more air into it. Then would need bigger exhaust. What is water injection?

wpg6.5 06-24-2011 02:00 PM

exhaust is a must, water meth works well too ive heard. turning the pump isnt too bad a few guys on here have detailed instructions on how to do it. and making an intake isnt too hard, a 3 inch 180 degree bend exhaust pipe will work, making one now. pulling the vacuum pump and making a manual boost controller helps, and a heath or walking j tune will really wake her up. i can walk 350 gas trucks all day. and i have 4 by

palmer6.5td 06-27-2011 09:41 PM

Could a person get their stock injectors remanned to 2100 psi?

Woody35 06-28-2011 12:20 AM


Originally Posted by palmer6.5td (Post 767971)
Could a person get their stock injectors remanned to 2100 psi?

yeah it takes a few shims. got to get them pop tested though to make sure the nozzles are good first


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