Stock bottom 4.8 + 78/76 + C16 = Oh my..
07-23-2015, 09:35 AM
#1
Stock bottom 4.8 + 78/76 + C16 = Oh my.. Another stock bottom slugger is running around! First of all, big thanks to guys like Martin @ Tick, the crew at HuronSpeed, Southen Chassis Works down here in Naples, and of course Jeremy Formato for another 2am laptop burning session. Here's a quick rundown:
'99 TA M6
Stock bottom Gen IV 4.8 w/ ARP studs and LS9 head gaskets
PRC 2.5's
Tick boost cam spec'd by Martin
LS6 intake
Huron speed kit w/ Turbonetics 78/76
Nasty Performance fuel system (rails, -8 feed, -6 return, Lonnies twin intank 340's)
FIC 1100's
Numbers:
@10.5psi - 602whp (93oct)
@13psi - 663whp (93oct)
@16.1psi - 736whp (93/C16 mix)
Unfortunately I didn't think ahead, and I don't want to risk going crazy boost levels on an 8psi WG spring so we kept it at 16. Considering the HP/psi gain, the turbo was definitely getting into it's happy zone, 850+ is a very real goal at 21-22psi! Can't complain too much considering the power per dollar quotient. Little tweaking here and there, new WG spring and more power to come
'99 TA M6
Stock bottom Gen IV 4.8 w/ ARP studs and LS9 head gaskets
PRC 2.5's
Tick boost cam spec'd by Martin
LS6 intake
Huron speed kit w/ Turbonetics 78/76
Nasty Performance fuel system (rails, -8 feed, -6 return, Lonnies twin intank 340's)
FIC 1100's
Numbers:
@10.5psi - 602whp (93oct)
@13psi - 663whp (93oct)
@16.1psi - 736whp (93/C16 mix)
Unfortunately I didn't think ahead, and I don't want to risk going crazy boost levels on an 8psi WG spring so we kept it at 16. Considering the HP/psi gain, the turbo was definitely getting into it's happy zone, 850+ is a very real goal at 21-22psi! Can't complain too much considering the power per dollar quotient. Little tweaking here and there, new WG spring and more power to come
Last edited by VTC_WS6; 07-23-2015 at 09:44 AM.
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07-24-2015, 07:09 AM
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07-24-2015, 07:48 AM
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Nice numbers. I have an 05 4.8 sitting in my garage. Im dying to dig into it but first i have to get my 5.3 going and driving. Then i will open that little sucker up and use it in my other camaro.
These little 4.8 articles are killing me!!!!!!
These little 4.8 articles are killing me!!!!!!
07-24-2015, 11:50 AM
#12
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08-27-2015, 10:29 PM
#16
TECH Addict
I know they don't NEED it, but for 20# of boost, it's a good idea to open up the shortblock.
ARP rod bolts and main studs, new bearings throughout, new rings properly gapped, and I'd get a .1gram balance and ceramic coat the tops of the pistons. It's not necessary, but the initial cost of the motor is generally so low that you should be able to afford some love to the shortblock.
I bet $1500 invested in the shortblock now will buy you at least 50k miles on that engine.
ARP rod bolts and main studs, new bearings throughout, new rings properly gapped, and I'd get a .1gram balance and ceramic coat the tops of the pistons. It's not necessary, but the initial cost of the motor is generally so low that you should be able to afford some love to the shortblock.
I bet $1500 invested in the shortblock now will buy you at least 50k miles on that engine.
08-28-2015, 07:18 AM
#17
Nice build man. What driveline components are you working with? I read through your build thread but didn't see what, if anything, was done to the trans, which clutch and rear end. I am thinking another turbo car is in my future and it will be an M6 car this go around. Thanks!
08-31-2015, 03:07 PM
#18
Nice build man. What driveline components are you working with? I read through your build thread but didn't see what, if anything, was done to the trans, which clutch and rear end. I am thinking another turbo car is in my future and it will be an M6 car this go around. Thanks!
