Speed Inc. LS2 GTO/APS results
06-16-2009, 12:51 PM
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Speed Inc. LS2 GTO/APS results We seen some great results from an Ls2 GTO with an APS kit we finished tuning today. We helped this customer with the build, but he did all the installs himself.
6 speed w/ Spec 3+ clutch
stock short
stock unported heads w/ Patriot Golds
stock unported intake and throttle body
our TU1 225/225 cam
crush bent 3" exhaust into a set of Magnaflow mufflers
our first twin intank 255 pump setup along w/ stock rails and an Aeromotive Reg.
2 bar w/ HP Tuners
7.5 psi / 93 octane
616 rwhp
565 rwtq
13.3 psi / 100 octane
773 rwhp
702 rwtq
16 degress @ peak TQ
18 degrees @ peak HP
6 speed w/ Spec 3+ clutch
stock short
stock unported heads w/ Patriot Golds
stock unported intake and throttle body
our TU1 225/225 cam
crush bent 3" exhaust into a set of Magnaflow mufflers
our first twin intank 255 pump setup along w/ stock rails and an Aeromotive Reg.
2 bar w/ HP Tuners
7.5 psi / 93 octane
616 rwhp
565 rwtq
13.3 psi / 100 octane
773 rwhp
702 rwtq
16 degress @ peak TQ
18 degrees @ peak HP
Last edited by LS1 SPEED; 06-18-2009 at 08:53 AM.
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06-17-2009, 01:15 AM
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largest reasons why it hooked on the dyno
1. Nitto 555R tires
2. its stock motor/ci the torque with the additional of a small cam, vs. a 402 with APS, peak torque is same however under the curve the 402 hits peak torque at 3500rpm where as this build hits peak torque much later. Linear delivery of torque.
My car had issues with tire spin, this car did not.
And camshaft, 225/225 113 LSA.... something David Vizard wouldn't spec in a million years for this application
Its an LS2 and honestly I think its the highest dynoing stock block LS2 (?)
06-17-2009, 01:19 AM
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What clutch? So I can expect my built 408 to be harder to dyno? Should I use et street radials to better hook it up? It is easier to hook on a mustang or dynojet? Would think mustang as it puts load on there although newer dynojets can do both inertia and load I think ?
06-17-2009, 01:31 AM
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What clutch? So I can expect my built 408 to be harder to dyno? Should I use et street radials to better hook it up? It is easier to hook on a mustang or dynojet? Would think mustang as it puts load on there although newer dynojets can do both inertia and load I think ?
yes ET street radials best choice
far as the dyno is concerned, if their was no load on a dyno jet how would the tires spin on the dyno? Realistically we've logged runs on the dyno jet then at the track and logs result almost dead on.
