GM 4.8l performance info needed
01-11-2005, 06:32 PM
#12
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Originally Posted by TigerFan187
Liek scream said the 1st 3 things you should get is intake,exhasy,and custom tune. The intake wont give you great HP/TQ gains but it can help in gas mileage and some other things plus its just one of thise things that eveyone seems to get first. If I could only get on of these things ever and never get anything else ti would be a custom tune by far but if you want to do an exhasut do it and the intake before you get the custom tune(Nelson Performance,PCM4less,MTI,etc...)
Welcome! This is for sure the sight you want to come to for good info and to see some bad *** rides!
Welcome! This is for sure the sight you want to come to for good info and to see some bad *** rides!
01-11-2005, 06:57 PM
#13
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Originally Posted by d.loftin
Thanks for the info. I heard that there is a hot water line running through the intake throttle body. Cant you reroute that somewhere. Someone also told me to take my mass air flow screen out. Can this be done?
01-11-2005, 07:08 PM
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i have a 4.8. try this; volant intake, magnaflow 18 ", hypertech programmer= 248hp 252tq at the wheels. I have seen stock 4.8s put somewhere around 200hp stock to the wheels, so i think this is a good start.
01-11-2005, 07:12 PM
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Stay as far away from hypertech as possible. A custom tune is thousands of times better. I've had both, and a custom tune from pcmforless.com is not only $100 cheaper, but is a thousand times better!
01-11-2005, 07:14 PM
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^^^ dont take that thing out it doesnt do anything. I know many on here say that it actually messed it up. In my case it is still working.
Originally Posted by PaintedRed
Don't take out screen. nononono
01-11-2005, 07:15 PM
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Originally Posted by d.loftin
No, its in Gulf Breeze, FL. And yes I live very close to the Gulf of Mexico.
I dont know what I was thinking Ocean Springs,MS maybe? And I have family in Pensacola
! My folks have a place on Orange beach I guess I need to go spend some time down there to get my memory straight 
01-11-2005, 07:18 PM
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By the the way you said you wanted to beat those HEMIs, don'tworry i have taken a couple of four door hemis, but whatch out for the single cabs, i got smoked
01-11-2005, 07:18 PM
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There are so many things you can do to that truck. First off, is it an extended cab? Yes you can do a T/b bypass, but is does not equate to a horsepower gain. First thing is the standard high flow intake and a cat back exhaust, underdrive pulley, ported throtle body. From there, do a tune. If your in Gulf Breeze, I would get in touch with Futral Motorsposts and Thunder Racing on the tune. Those guys can work magic. Take a look at our sponsors to the right. These guys are the best in the bussiness and have the cars and cutomers to prove it. Some of our sponsors that tune trucks are:
Futral http://www.futralmotorsports.com/
Tbyrne http://www.tbyrne.com/
MTI http://www.motorsporttech.com/
HP Tunners http://www.hptuners.com/ (you buy the program and tune it yourself)
Thunder Racing http://www.thunderracing.com/
Texas Speed http://www.texas-speed.com/
After that, then you can do a torque converter, headers, gear, posi, N20, supercharger, etc...It gets addicting and expensive and the list goes on and on and on.
Futral http://www.futralmotorsports.com/
Tbyrne http://www.tbyrne.com/
MTI http://www.motorsporttech.com/
HP Tunners http://www.hptuners.com/ (you buy the program and tune it yourself)
Thunder Racing http://www.thunderracing.com/
Texas Speed http://www.texas-speed.com/
After that, then you can do a torque converter, headers, gear, posi, N20, supercharger, etc...It gets addicting and expensive and the list goes on and on and on.