L99 Dyno
05-24-2009, 05:40 PM
#1
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Location: City of Champions, MA, USA
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L99 Dyno
The car made 324 RWHP and 326 RWT. It sounded great too! I think its got more in it though because it had like 550 miles on it and the Air/fuel was rich(probably for break-in). 11.5:1
http://s158.photobucket.com/albums/t...t=P5237001.flv
From DanD on Camaro5.com:
EDIT: It was a Mustang dyno too btw and corrected for all you Correction factor ***** out there.
http://s158.photobucket.com/albums/t...t=P5237001.flv
From DanD on Camaro5.com:
that's my car, and MY dlr plate, and had to use it since the cert. of Origin is still not in on the car, so can't register it.. lol...
anyway, had 120 miles on it.. of which 53 were on from GM, and the rest were from me driving from the Cape to Bridgewater. I just picked it up friday at 6pm.
let the mods begin
anyway, had 120 miles on it.. of which 53 were on from GM, and the rest were from me driving from the Cape to Bridgewater. I just picked it up friday at 6pm.
let the mods begin
Last edited by super83Z; 05-24-2009 at 08:12 PM.
05-25-2009, 06:32 AM
#5
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Location: Seacoast, N.H.
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The car made 324 RWHP and 326 RWT. It sounded great too! I think its got more in it though because it had like 550 miles on it and the Air/fuel was rich(probably for break-in). 11.5:1
http://s158.photobucket.com/albums/t...t=P5237001.flv
From DanD on Camaro5.com:
EDIT: It was a Mustang dyno too btw and corrected for all you Correction factor ***** out there.
http://s158.photobucket.com/albums/t...t=P5237001.flv
From DanD on Camaro5.com:
EDIT: It was a Mustang dyno too btw and corrected for all you Correction factor ***** out there.
So when are you going to NED?
Marc
05-29-2009, 08:01 PM
#6
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Location: so. okla
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air/fuel rich situation
'air/fuel was rich-probably for break-in'.............. wouldn't the engine computer run air/fuel ratio as needed, from day one on til 200,000+ mi on car..?. how would the computer know that car is in the Break-in period? ..
05-29-2009, 08:41 PM
#7
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Location: City of Champions, MA, USA
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Because the PCM is more aware than you think. A different fuel map is used until some miles are racked up. Most LS1 F-bods were putting down more power once the miles were put on also.
06-11-2009, 04:57 PM
#8
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rich/lean on computer
i chk'd with a mechanic who works on GM - lexus etc (modern) engines with f. i. computers-- computers dont lay down fuel based on 'new engine needs break in' rich vs. 'older engine needs lean' .. they lay down fuel based on coolant temp- throttle position - rpm- outside air temp - etc.... any improvement on dyno hp of a brand new engine vs an older engine (older engine, more hp) would be in: less friction at piston ring area against cyl wall as the new engine loosens up with miles- and other friction issues---- one could design a computer to change air/ fuel mixture at the 3000 mile point , or 5000 mi point ... but they dont design them that way......
06-11-2009, 05:16 PM
#9
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Location: City of Champions, MA, USA
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i chk'd with a mechanic who works on GM - lexus etc (modern) engines with f. i. computers-- computers dont lay down fuel based on 'new engine needs break in' rich vs. 'older engine needs lean' .. they lay down fuel based on coolant temp- throttle position - rpm- outside air temp - etc.... any improvement on dyno hp of a brand new engine vs an older engine (older engine, more hp) would be in: less friction at piston ring area against cyl wall as the new engine loosens up with miles- and other friction issues---- one could design a computer to change air/ fuel mixture at the 3000 mile point , or 5000 mi point ... but they dont design them that way......
06-11-2009, 05:18 PM
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-Geoff
06-12-2009, 11:01 AM
#12
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-Geoff
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