GM 4.8l performance info needed
Jan 11, 2005 | 07:33 PM
#22
TECH Fanatic
Joined: Dec 2004
Posts: 1,099
Likes: 0
From: Tucson AZ
Originally Posted by GREGGO
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.
Jan 11, 2005 | 08:49 PM
#23
Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Hey man welcome to the site.For starters just like they all said intake, custom tune,set of gears and exhaust would be a good start.After all that an you save up more get yourself a radix or a turbo set up.You should go run your friend with the hemi ram.Might be suprised.I have pulled a few rcsb hemi rams
Jan 11, 2005 | 10:11 PM
#24
welcome to the land of the the 4.8L's
pretty much what everyone else has said goes..
IMO a gear swap, posi, and a stall will net you a good time..at the track,
most likely will knock off atleast 7/10ths of a second..
I know my swap did.
ask all the questions you need to.. there are no dumb questions..
but also try the search function to.. you could probably find the answer quick that way....
I dont know if any of us actually live on this sight or not
so it might be a while sometimes before an answer arrives...
But you have come to the right place to find answers..
I know a few of us that are really pushing these 4.8L hard, and getting some crazy numbers out of them...
both N/A, and spraying, as well as F/I
Good luck tho.
Later,
Daniel
pretty much what everyone else has said goes..
IMO a gear swap, posi, and a stall will net you a good time..at the track,
most likely will knock off atleast 7/10ths of a second..
I know my swap did.
ask all the questions you need to.. there are no dumb questions..
but also try the search function to.. you could probably find the answer quick that way....
I dont know if any of us actually live on this sight or not
so it might be a while sometimes before an answer arrives...
But you have come to the right place to find answers..
I know a few of us that are really pushing these 4.8L hard, and getting some crazy numbers out of them...
both N/A, and spraying, as well as F/I
Good luck tho.
Later,
Daniel
Jan 12, 2005 | 11:25 AM
#26
TECH Apprentice
iTrader: (2)
Joined: May 2004
Posts: 312
Likes: 0
From: Texas where Bigger is Better
bang for the buck, stay away from the boltons, fipk,tstat, catback, these are all finishing touches, what you would spend on the boltons you could through in a cam, or stall, or gears. The Fipk failed to change my grams per second across the maf, the exhaust, well did not make a difference stock truck, once i did the cam 7 installed true duals, i noticed a nice difference. gears are good for a solid 1/2 second.
Jan 13, 2005 | 12:33 PM
#28
Staging Lane
Joined: Jul 2004
Posts: 53
Likes: 0
From: Tempe, AZ
Originally Posted by Deckhand
Id suggest a 3000 - 3500 converter and 4.10s.
Maybe some nitrous of you have the itch.
Maybe some nitrous of you have the itch.
if he's looking to keep it street driveable, I would think he should stick with either a 3000 or 3200 at the most. just my .02
but the 4.10's are good, I want to put some on my truck.
Jan 13, 2005 | 02:07 PM
#29
I had 3.42 gears from the factory on my 4.8 so I put 4.10's on and it made a huge overall difference. It became really fun to drive. I dont care what anyone says 4.10 are very streetable and I actually gained 1.5 mpg.
Jan 13, 2005 | 02:14 PM
#30
Staging Lane
Joined: Jul 2004
Posts: 53
Likes: 0
From: Tempe, AZ
Originally Posted by TigerFan187
I had 3.42 gears from the factory on my 4.8 so I put 4.10's on and it made a huge overall difference. It became really fun to drive. I dont care what anyone says 4.10 are very streetable and I actually gained 1.5 mpg.