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06-19-2008
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#11 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Dyno run sheet
wow, you are lean , is dominic going to add more fuel for you. O would be very carefull till he or someone does . my car was like that till corey added more fuel and took out 1-2 deg of timing up top. the reason for the timing was californias wonderfull 91 oct fuel and special adiitives .id bet you would go over 400 whp easy with the right fuel curve.it shows you did a very nice job on the porting
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06-19-2008
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#12 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Dyno run sheet
Sweet part is 390rwhp with a crap tune......this could be fun!
LGAFF 92 ZR1 #234 |
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06-19-2008
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#13 | |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,150
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Re: Dyno run sheet
Quote:
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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06-20-2008
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#14 |
Join Date: May 2005
Location: Leesburg, VA
Posts: 2,713
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Re: Dyno run sheet
I'm no expert, but I've heard tailpipe widebands read lean by about half a point or so? So it might not be quite as bad as the 13.9-14:1 seems to indicate.
Also, wouldn't you lose a little power richening it up (though gain a huge margin of safety)? All I mean is a non-crap tune might not improve the power, though it certainly looks like it would be a good idea.  So do you have headers or what?
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Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img] |
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06-20-2008
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#15 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: Dyno run sheet
yes I am runnning Watson headers.
LGAFF 92 ZR1 #234 |
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06-20-2008
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#16 |
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Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Dyno run sheet
I think his car being that lean would cost power. it looks way lean , it would be fun to see what happens when they add fuel .if i had to guess 410to the wheels .but i am no expert
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06-20-2008
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#17 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,696
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Re: Dyno run sheet
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The best place for a WB is in the collector next to the NB sensor. I think next time I go to the dyno, I'll have my ZT-2 hooked up. Be an interesting comparison between the tailpipe and the collector. My first run on thedyno showed a 13.4:1 AFR. Dropping that to 12.8 did nothing for power either way but a bit more peace of mind in case of bad gas for example. |
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