New turbo dyno numbers ~325 whp and ~350 lb-ft

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I went to the RMCGP dyno day today and put down some impressive numbers. Here are the two best runs

322.0 hp 349.4 lb-ft
324.9 hp 339.5 lb-ft

Torque peaks around 4500 rpm and horsepower is essentially flat from 4500 rpm to 7000 rpm.

Details- no cat, 10 psi, 12.5-13:1 afr, minor ignition retard, 91 octane pump gas, 157k mile stock engine.

I'll post pics today including one comparing my last run there to my new ones. I literally doubled my NA horsepower and torque at the wheels. From 3400 rpm (where the operator started the run) on up, I have more power than the old dyno. At 3750 rpm, I have more horsepower than I had at the peak of my old dyno.

Tim

[dohcfiend]

RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

holy crap!!!!!!!!!!!!!! they build those lq1's strong

u gonna be knocking on some l67 door with those numbers.

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RE: New turbo dyno numbers ~325 whp and ~350 lb-ft



While I was at the dyno, no L67 beat me. I don't know if anybody did after I left. There was one with an 80 shot of nitrous that was heavily modded that probably would.

Tim

[SappySE107]

RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

Congrats man, thats awesome! You haven't touched anything internal or heads/intake? How about cam timing?

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RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

My boost gauge said 10 psi- data logs say 8 psi @ 4500 dropping to 7 @ redline (because of the MBC). The FTC was doing 1.5 degrees of timing retard. There's probably more power available by tuning ignition and upping the boost. I'm going to wait until I'm OBD2 to do that though.

Tim

[timg]

Re: RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

Congrats man, thats awesome! You haven't touched anything internal or heads/intake? How about cam timing?

Thanks! Cam timing is stock and the engine is 100% stock internally. No porting or other mods.

Tim

[SappySE107]

RE: Re: RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

Have you scanned the computer to see what the duty cycle of the injectors is at? What about spark timing?

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RE: Re: RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

Don't have an OBD1 scanner. That's why I stopped at 10 psi and haven't done much more than a bit of retarded timing. If I planned on taking the FTC1 to the limit, I would definitely need to do some scans though.

Tim

[SappySE107]

RE: Re: RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

How about a road trip to indiana Ill be sending you a pm.

[timg]

RE: Re: RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

I have a wheel horsepower to crank horsepower conversion spreadsheet that I created. It assumes 210 crank horsepower and 166 wheel horsepower stock. It then calculates horsepower in three ways- a straight difference, a straight percentage, and an average of the two. If you assume a 44 hp difference between wheels and crank, it's 369 crank hp. If you assume a 21% loss, it's 411 crank horsepower. The average of the two is 390 crank horsepower. Are any of those accurate? I have no idea, but I am virtually doubling my stock whp and stock lb-ft.

Tim

[SappySE107]

RE: Re: RE: New turbo dyno numbers ~325 whp and ~350 lb-ft

You posted in the thread kevwood started on the drivetrain loss. Im not sure what the exact loss is though I am pretty sure that with more power, your % goes down some.

[OldSkoolGP]

10 psi on stock internals? Damn, suddenly I find myself rethinking staying NA forever! With my bottom end AND OBDII, I could probably push a lot more! Awesome numbers dude! Any pictures of your setup?

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Thanks!
Here's my cardomain site. I have a ton of pics there.

http://www.cardomain.com/ride/719379/4

Tim

[Kevwood]

My hat off to you! Most impressive!

[Fierobsessed]

I told you LQ1's like boost.

That is not a linear gain. If he started out at 166, added 10 PSI of boost then he should have a theoretical maximum of.... 276 at the wheels. he is pushing a heck of alot more then that. Shows that this engine is running out of its range of efficiency, and that boost gets it closer to that range by adding to its efficiency. I love it, its something no other engine does. (at least, that I know of)

I would like to note however, my Quad 4 also put out 166 at the wheels, with a 3.94, 5-speed stock. And there is no way in hell its going to double that number with a simple 10 PSI of boost. The LQ1 is something special and rare.