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08-06-2017
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#1 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Nitrous Dyno Today
If all goes well, the 90 will be on the dyno with a 75 shot of nitrous today.
Last week I tried to dyno my 2005 Mercedes SL600, the electronics didn't cooperate....no tach and then the car kept downshifiting even in dyno mode....it did manage to give us a reading of 479rwhp before it downshifted....so its north of 479....which puts it over 600 crank. When I dynod the 90 Z car after the engine build it put down 441 RWHP; however on this particular dyno with my last intake test it was 426RWHP....both just motor. Going to run on motor, then try the juice....
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-06-2017
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#2 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Nitrous Dyno Today
Make a vid of it.
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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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08-06-2017
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#3 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Nitrous Dyno Today
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-06-2017
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#4 |
Join Date: Jul 2012
Location: Allentown, PA
Posts: 309
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Re: Nitrous Dyno Today
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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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08-06-2017
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#5 |
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Join Date: Aug 2014
Location: Montgomery TX
Posts: 263
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Re: Nitrous Dyno Today
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1991 White ZRJuan #1616 Mileage: 56K Sept-14 -- 113k May-18!!! God Damn I Love This Car! |
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08-06-2017
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#6 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Nitrous Dyno Today
Well on motor the car made 424.5RWHP but it was insanely fat at 10.5-11.1 AFR....there were point at low RPM it was at 10.1.
We tried the juice, but oddly the car went lean but did it pick up power; Holy Christ.....he didn't print the RPM but when you look at when he shut it down it was making 363RWHP......without NOS it was making 283 at that same point. Ill be back
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-06-2017
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#7 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 815
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Re: Nitrous Dyno Today
Are you disconnecting the air duct when on motor? Down on power and rich, maybe the duct is collapsing?
Sent from my iPhone using ZR-1 Net Registry
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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08-06-2017
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#8 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Nitrous Dyno Today
I don't think that's it.....wonder if its the FPR.....150K miles on it
Its a Jerrys gasksets Duct
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-06-2017
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#9 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 815
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Re: Nitrous Dyno Today
Air filter new and clean? Doubt it's the FPR. I'd try to think of things which would restrict airflow. If the fueling was right before.
Sent from my iPhone using ZR-1 Net Registry
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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08-06-2017
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#10 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Nitrous Dyno Today
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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