Stock Bottom & Boost - Reliability List
On The Tree
Joined: Jul 2008
Posts: 128
Likes: 2
From: Stockett, Montana
stock 5.3 183k + miles , straight out of junk yard , 26psi out of t4 76mm turbo, runs strong, oil looks good has made about 75 + 1/4 mile runs and i damaged a lifter during lsx this year. according to the weight / 1/4 mile time it made about 625hp. i think the 6600 rev limiter is what tanked the stock lifters.
05 gto stock ls2 with afr 205 heads ran 13-15 psi twin turbo setup(self built) 3 years no issues,motor still ran fine when built motor was installed,best ET was 10.6 @134 this is a stock IRS GTO drag radials and converter.
+1 no way 26 psi only made 625hp,im running 20psi and have well over 900hp..my car runs 9.50 @ 144mph and weighs in at 4070lbs with me and 1/2 tank fuel.
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Verdad Gallardo On The Tree
Joined: Jul 2008
Posts: 128
Likes: 2
From: Stockett, Montana
nope, mine has something seriously wrong with it. getting a lot of water/coolant in the oil.
in process of building properly now, will find out what went wrong not too long from now...
in process of building properly now, will find out what went wrong not too long from now...
-mpt76 q trim
-12 psi,ebay FMIC, 618/695 on 16*,e85, and really fat!!
-110k on car now,30k boosted miles total
-#7 is low on compression now and was low during the dyno runs.
100% stock parts on this motor
used z06 yellow springs,02 z06 cam,stock pushrods,stock timing.
it's all in the tune guys.
On The Tree
Joined: Feb 2002
Posts: 178
Likes: 0
From: Ann Arbor, MI
InconTT
initial psi 6-7 and 450-500 rwhp and at 9psi/550rwhp since about 20k miles.
initial install 7K miles on car
Current Mileage 49,500 = 42500
on the 9psi tune it was overly safe, 11.5:1 a/f and around 16* timing at peak tq, and up to maybe 19-20 by redline. leaned it out to 12.5:1 on the dyno and gained no power, so we set it back.
Motor didn't break per se. Tore it apart to look for an engine tick; and found that I had an improperly heat treated cam that has a sliver of the lobe peel off the edge.
additional mods to motor were good pushrods and springs.
initial psi 6-7 and 450-500 rwhp and at 9psi/550rwhp since about 20k miles.
initial install 7K miles on car
Current Mileage 49,500 = 42500
on the 9psi tune it was overly safe, 11.5:1 a/f and around 16* timing at peak tq, and up to maybe 19-20 by redline. leaned it out to 12.5:1 on the dyno and gained no power, so we set it back.
Motor didn't break per se. Tore it apart to look for an engine tick; and found that I had an improperly heat treated cam that has a sliver of the lobe peel off the edge.
additional mods to motor were good pushrods and springs.
-2001 Camaro
-APS Twin Turbo (Base kit)
-11psi / 630rwhp 640rwtq
-70k miles when installed
-78k miles current
Daily drive on 6psi but it sees 11psi about once a week for a quick thrill. Have made a dozen or so track passes on high boost, runs perfect. CMS SD tuning got me dialed in!
-APS Twin Turbo (Base kit)
-11psi / 630rwhp 640rwtq
-70k miles when installed
-78k miles current
Daily drive on 6psi but it sees 11psi about once a week for a quick thrill. Have made a dozen or so track passes on high boost, runs perfect. CMS SD tuning got me dialed in!
Last edited by MosesMcgregor; Mar 24, 2010 at 11:09 AM.
TECH Resident
Joined: Jan 2007
Posts: 751
Likes: 0
From: Texas
- Type of Forced Induction:A&A Vortech S-Trim Supercharger
- Boost Amount / RWHP: 11.4 psi/708rwhp-640rwtq
- Miles on the car when FI installed: 13k
- Miles ran since FI has been on the car (ie: current mileage): 21k- IF you broke the motor, list what was broken: Never Broke Anything
Link to dyno vid:
https://ls1tech.com/forums/forced-in...deo-clips.html
- Boost Amount / RWHP: 11.4 psi/708rwhp-640rwtq
- Miles on the car when FI installed: 13k
- Miles ran since FI has been on the car (ie: current mileage): 21k- IF you broke the motor, list what was broken: Never Broke Anything
Link to dyno vid:
https://ls1tech.com/forums/forced-in...deo-clips.html
Last edited by NemesisC5; Feb 12, 2010 at 10:39 PM.
- Type of Forced Induction:A&A Vortech S-Trim Supercharger
- Boost Amount / RWHP: 11.4 psi/708rwhp-640rwtq
- Miles on the car when FI installed: 13k
- Miles ran since FI has been on the car (ie: current mileage): 21k- IF you broke the motor, list what was broken: Never Broke Anything
Link to dyno vid:
https://ls1tech.com/forums/forced-in...deo-clips.html
- Boost Amount / RWHP: 11.4 psi/708rwhp-640rwtq
- Miles on the car when FI installed: 13k
- Miles ran since FI has been on the car (ie: current mileage): 21k- IF you broke the motor, list what was broken: Never Broke Anything
Link to dyno vid:
https://ls1tech.com/forums/forced-in...deo-clips.html
Any track times?
TECH Resident
Joined: Jan 2007
Posts: 751
Likes: 0
From: Texas
That's sick power from a stock lower end. Have you had alcohol injection from the very beginning? Pretty sure if I had injection my stock motor would still be around. Many ***** out quarter miles passes with 10.1:1 compression, 10 psi boost, and 100 degree heat ain't kind on a motor.
Any track times?
Any track times?
- Type of Forced Induction: MP122
- Boost Amount / RWHP: 10 psi/655rwhp-598rwtq
- Miles on the car when FI installed: 15k
- Miles ran since FI has been on the car (ie: current mileage): 25k
- IF you broke the motor, list what was broken: Never Broke Anything
notes
11:1 CR
E85
Live in Colorado, 5,000 - 6,000 altitude
- Boost Amount / RWHP: 10 psi/655rwhp-598rwtq
- Miles on the car when FI installed: 15k
- Miles ran since FI has been on the car (ie: current mileage): 25k
- IF you broke the motor, list what was broken: Never Broke Anything
notes
11:1 CR
E85
Live in Colorado, 5,000 - 6,000 altitude
Feel free to add me as well...
- Type of Forced Induction: Procharger D1SC
- Boost Amount / RWHP: 8psi 596hp / 508tq
- Miles on the car when FI installed: 42k
- Miles ran since FI has been on the car (ie: current mileage): 6k on setup, currently @ 48k
- IF you broke the motor, list what was broken: Nothing in the motor has broken.
Notes:
2001 Trans AM (Factory ls6 block), 6 speed.
--Mike
- Type of Forced Induction: Procharger D1SC
- Boost Amount / RWHP: 8psi 596hp / 508tq
- Miles on the car when FI installed: 42k
- Miles ran since FI has been on the car (ie: current mileage): 6k on setup, currently @ 48k
- IF you broke the motor, list what was broken: Nothing in the motor has broken.
Notes:
2001 Trans AM (Factory ls6 block), 6 speed.
--Mike
Last edited by dcvingv6; Apr 29, 2010 at 04:53 AM.