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Old 01-12-2011, 02:16 AM   #1
LS2GTO
 
Join Date: Sep 2009
Posts: 2
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Thanks JS Performance for a great engine! 1-year mark review

Just wanted to share my experience with my 355 AI engine build that Josh buttoned together a year ago already. Due to a couple lousy experiences in the past, it took me a while to find a good shop and someone who actually cares (and charges a fair price). From a simple trans cooler install on my GTO, to a full out engine and suspension build on my LT1 car , i've been pretty happy. A few quirks appeared, but with a 15 year old car i think it was just time for some little stuff to take a dump. So far, the motor is doing great with 7000 miles on it and my hope is that it lasts for another 50k!

My original dyno numbers were 405whp and 378tq. Recently re-dynoed and it put out 411rwhp and 384tq. I guess it must have loosened up a little. Or it was from fixing the ignition break-up at 5800 RPM

Here are the full specs of everything. I had Josh take my brand new GM shortblock, gut it and do the machining & assembly as well as R&R the motor in the car. He also rebuilt the suspension with Konis, replaced the clutch, among many other things.


Internal Engine:

Brand new GM LT1 block 4-bolt mains
Advanced Induction "Dominator" 200cc heads
Advanced Induction billet core 230/236 cam @112LSA
Advanced Induction High performance valvetrain package
Advanced Induction ported intake manifold
Ohio Forged 4340 3.48" crankshaft
Compstar 6" Forged rods
Mahle Powerpak Forged -5cc pistons
Clevite Competition Series rod/main bearings
LT4 Extreme duty timing chain
ATI Superdamper

Exhaust:

Hooker Super Competition long tube headers, coated
Borla cat-back, no cats

Drivetrain:

Moser 9" Rear End , Detroit Truetrac posi, 4.11 gear ratio
PST 3.5" balanced driveshaft w/ loop
BMR torque arm relocation kit
Spec 3 clutch

Suspension:

Koni 4/4 Shocks
UMI Panhard bar
UMI Rear Control Arms
UMI Race Torque Arm

Fuel system:

Racetronix High-flow 255lph in-tank fuel pump
Racetronix 42lb/hr flowmatched fuel injectors

Cooling:

Brand new ACdelco radiator
160* SLP thermostat
Electric water pump

Tuning:

Dyno tuning by Bryan Herter

Attached Images
File Type: jpg 25813_337358701526_536181526_3764600_5205057_n.jpg (69.2 KB, 25 views)

Last edited by Mike; 01-13-2011 at 12:40 PM.
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