01-14-2016 | #11 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
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Re: Corey does his magic
It's all subjective unless the engine is tested on an engine dyno instead of a chassis dyno. It's really not that big of a deal.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
01-14-2016 | #12 |
Join Date: Feb 2013
Location: New Concord Kentucky
Posts: 184
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Re: Corey does his magic
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01-14-2016 | #13 |
Join Date: Jun 2015
Location: Texas
Posts: 530
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Re: Corey does his magic
First off I do not have a baseline number before the tune, I do not know much about the history of the car regarding if it had any mods. The peak power came on at about 5600, so according to Corey the plenum is probably not ported. That said I think there are always deviations in HP depending on who builds the motor. My understanding is that the LT5 is essentially a hand built motor, so there will be variation from motor to motor. In any case I agree its not a real big deal, I was just pleasantly surprised. Cant wait to drive it!
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01-14-2016 | #14 |
Join Date: Jan 2015
Location: Marietta, GA USA
Posts: 1,160
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Re: Corey does his magic
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01-14-2016 | #15 | |
Join Date: Nov 2014
Location: Brooklyn ny
Posts: 1,045
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Re: Corey does his magic
Quote:
Let us know how you like it when you drive it..Safe driving... |
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01-14-2016 | #16 |
Join Date: Jun 2015
Location: Texas
Posts: 530
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Re: Corey does his magic
It was also usually chilly when she was on the dyno. So there is that.
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01-14-2016 | #17 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Corey does his magic
A tune AND headers isn't additive. The headers are going to add hp by reducing restriction in the exhaust. A "tune" will take advantage of the modification, it won't "add" horsepower beyond what the exhaust modification makes possible.
As Jerry stated, this is subjective given the fact that Dino's, even of the same make, can have significantly different results. Dyno results are valuable from the standpoint of establishing a benchmark, and then tracking changes and the results of those changes.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX Last edited by XfireZ51; 01-14-2016 at 09:44 PM. |
01-14-2016 | #18 |
Join Date: Feb 2004
Location: Ma
Posts: 404
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Re: Corey does his magic
Could be the correction factor. Maybe STD as opposed to SAE. Regardless, congrats on the new power.
Porting the plenum and injector housings will compliment those headers nicely.
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1990 ZR1 #2574 Medium Quasar Blue Metallic 1 of 19 |
01-14-2016 | #19 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Corey does his magic
Quote:
Having said that, the upgrade in power is like scuba diving "rapture of the deep". The further you travel down, the further you want to travel down. Power is intoxicating and the LT-5, at 500hp+ levels really is a blast. ENJOY!
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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01-15-2016 | #20 |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Corey does his magic
Thanks for that correction, Graham.
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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