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#21 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Maybe a cat back, but he was stock.
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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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#22 |
![]() Join Date: Jul 2012
Location: Allentown, PA
Posts: 309
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Wow! 387 RWHP from a stock motor is really strong! When you say "no catbacks", do you mean the exhaust was stock or disconnected?
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'95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP. |
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#23 | |
![]() Join Date: Jul 2012
Location: Allentown, PA
Posts: 309
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'95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP. |
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#24 |
![]() Join Date: Dec 2004
Location: San Ramon Ca
Posts: 32
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To answer the question, I meant stock exhaust Sonoma and most tracks won’t let you let you race because of noise issues. I notice on your stock or mild mod dyno slip you are at 394 that is stout as well. Different than some other the “on dyno” rev limit yours is well into the 6k+ range why would people go lower. These are amazing engines and I don’t think my engine or any other are freaks just not exploited. I agree with people who say real power is proven by track results and I go for the low hanging on that. The most fun is running heads up with equal hp cars and seeing the difference in power ban. Track proven HP is king everything else is on the bench.
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#25 | |
![]() Join Date: Nov 2014
Location: Brooklyn ny
Posts: 1,045
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From what I hear they are very good tuning agents if used properly...Power through the torque curve I'm guessing, is better than peak horsepower in the real world.... Isn't it true that mustang dynos read differently than a dyno jet? Sent from my LG-TP260 using ZR-1 Net Registry mobile app |
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#26 | |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 809
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that's corrected to SAE 1349 conditions, steady state-non-accelerating. a 500-rpm/sec acceleration test might knock that down 10 hp. So 395 SAE, for an acceleration test, engine dyno. Chassis dyno data points I've seen for later MY LT-5s are in the 340-350 rwhp SAE corrected. A 45-55 hp "driveline loss". or 11-14% at stock power levels. I've had a couple of these on both engine and chassis dyno, and observed closer to a fixed hp loss. But, that's just my experience and limited data points. I'll be putting another one on the engine dyno soon.
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#27 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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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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#28 |
![]() Join Date: Jul 2012
Location: Allentown, PA
Posts: 309
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Conventional wisdom over on the Vette forum says the Mustang dyno's register lower RWHP numbers than Dynojet by 8-12 %. Mustang dyno's use a brake to control acceleration and measure power whereas Dynojet uses an inertia drum and measures acceleration. Mustang claims their numbers are more accurate but the Dynojet numbers sure sound better!
Sent from my HTC U11 using ZR-1 Net Registry mobile app
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'95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP. |
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#29 |
![]() Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Have done quite a bit of research in the past couple of months regarding Dynos. Partner and I have started Crossed Flags Performance and are building a new facility in Magnolia, Tx. More on that later, but we are strongly leaning toward Hub dynos like Mainline. These allow total control over the load presented to the engine, which allows us to map the full VE tables and quickly zero in on optimal fuel and spark for any setup. Only drawback is if we want to host Dyno days, as the setup in a hub Dyno is much more involved.
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#30 |
![]() Join Date: Dec 2004
Location: San Ramon Ca
Posts: 32
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I happen to like the mustang dyno pack because it’s cleaner and less of a contraption bolts right up as the tires would from there its numerical input just my thought.
Left Side Not Right----All mine were done on the Pack gotta watch lug bolt stretch though. Last edited by Wide_One; 07-22-2018 at 07:23 PM. |
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