Stock Bottom & Boost - Reliability List
TTI 60-1
9psi 451rwhp 507tq with 60 trim falling on its face above 5000 rpms.
97000 when installed
101xxx now with no problems
Upgrading to T76 now
9psi 451rwhp 507tq with 60 trim falling on its face above 5000 rpms.
97000 when installed
101xxx now with no problems
Upgrading to T76 now
Last edited by cbr600rx7; Apr 5, 2010 at 11:54 AM.
#7 ptk style kit
04,ls6 stock
7psi just over a year,3500miles or so
87# compression,o leak down
#7 land between comp rings 1" piece ,stayed in place and run great.
blow buy was the indicater
mike
04,ls6 stock
7psi just over a year,3500miles or so
87# compression,o leak down
#7 land between comp rings 1" piece ,stayed in place and run great.
blow buy was the indicater
mike
Teching In
Joined: Nov 2002
Posts: 41
Likes: 0
From: Melbourne, Australia
My standard LS1 bottom end is still going strong but it still hasn't been added to the original list, here are the current details:
Maggie MP122
10psi, 507rwhp
Miles at time of install - 59k
Miles on the car now - 73k
Broken - N
Standard bottom end is still running great and bores looked good when we installed Patriot LQ9 heads. It's had about 10 dyno runs in that time and about 10 1/4 mile passes with a best so far of 10.79@132mph so it's no slouch.
Maggie MP122
10psi, 507rwhp
Miles at time of install - 59k
Miles on the car now - 73k
Broken - N
Standard bottom end is still running great and bores looked good when we installed Patriot LQ9 heads. It's had about 10 dyno runs in that time and about 10 1/4 mile passes with a best so far of 10.79@132mph so it's no slouch.
Stock 02 LQ9 installed valve springs only with around 98K on it, engine has around 102k on it now
Min Boost 17 lbs max 22
last dyno with T-56 was 825 RWH at 19lbs 5400 rpm on race gas,
Engine is now on E85 with an 4L80E going to dyno again tomorrow.
S374 74mm B/W Turbo
Just ran our best time 9.92 at 141.46 last Sat.
Link
http://www.ls1gto.com/forums/showthread.php?t=363838
Min Boost 17 lbs max 22
last dyno with T-56 was 825 RWH at 19lbs 5400 rpm on race gas,
Engine is now on E85 with an 4L80E going to dyno again tomorrow.
S374 74mm B/W Turbo
Just ran our best time 9.92 at 141.46 last Sat.
Link
http://www.ls1gto.com/forums/showthread.php?t=363838
broke a ring land (1/4 tank of fuel on a launch, went lean)
$40 ebay stock pistons back in
now at 567rwhp (4l80)
5K on setup
2006 GTO with completely stock LS2
- APS Twin Turbo
- 7.5 PSI / 554 RWHP / 574 FTLB
- Install turbo kit at ~21000
- Currently at ~46,000
- Motor was fine for nearly 2-1/2 years. I drove through some water and the low APS filters picked up water and hydrolocked my #7, breaking the wrist pin boss in the piston.
Replacing with forged, wet sump LS7 @ 9.25:1 compression
- APS Twin Turbo
- 7.5 PSI / 554 RWHP / 574 FTLB
- Install turbo kit at ~21000
- Currently at ~46,000
- Motor was fine for nearly 2-1/2 years. I drove through some water and the low APS filters picked up water and hydrolocked my #7, breaking the wrist pin boss in the piston.
Replacing with forged, wet sump LS7 @ 9.25:1 compression
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Type Of Forced Induction: Procharger D1SC
Boost Amount / RWHP: 8 lbs / 475 (Mustang dyno)
Miles on the car when FI installed: 48000
Miles ran since FI installed: 6000
Bone stock '01 long block.
Only thing I have wrecked so far is the stock clutch. That went out at about 4500 miles. Hopefully the rear end will last long enough before putting a 9" in it.
Boost Amount / RWHP: 8 lbs / 475 (Mustang dyno)
Miles on the car when FI installed: 48000
Miles ran since FI installed: 6000
Bone stock '01 long block.
Only thing I have wrecked so far is the stock clutch. That went out at about 4500 miles. Hopefully the rear end will last long enough before putting a 9" in it.
I changed to the SDCE tensioner and due to the pulley ratio difference, I am seeing about 10.5 lbs of boost now. I recently had the car on a dyno and it saw 566 (numbers in my signature). The car currently has about 58,000 miles, or about 10000 since install.
No problems with the short block, yet. I am keeping my fingers crossed for now.
Teching In
Joined: Feb 2010
Posts: 8
Likes: 0
From: Ohio
I'm running a P1SC on a stock bottom end 2001 Z, 7.5 lbs of boost makin 500 at the rear and it hasnt died on me yet. i do get a lag in the supercharger though, right around 2000 rpms. does anybody else get that same lag?
I wouldn't call it lag, just not make power below 2k rpms.
Yes, but that's just one of the weaknesses. My stock engine made 540 rwhp and let go with two broken ring lands and a main bearing failure. Rod bolts wouldn't have helped me much. I drove the **** out of it though, your mileage may vary.
To my understanding ringland damages usually occur either out of poor pcv set up and or running a little lean. The 1st one to go is usually #7
Launching!
Joined: Mar 2009
Posts: 281
Likes: 0
From: Melbourne, Australia
So rods and head bolts, plus was planning on doing bottom end bearings, anything else without going all out on a forged bottom end?