Confusing Dyno results
#1
06-27-2003 | 05:56 PM
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From: Albuquerque, NM
Confusing Dyno results
First some history: I had dyno'd at 397 SAE RWHP and 524 RWTQ, wanted to join the 400/500 club. I added electric fans and finally changed from stock plugs to NGK TR-6 plugs gapped at .038". With the same chip and mods plus fan/plugs I dyno'd at 390/509 SAE RW. And now my A/F ratio is lean. It starts out at 13:1 and only drops to 12.6 at 5,200 rpm. This is with the same chip that gave me a 12:1 to 11.5:1 A/F ratio earlier. 
What's going on here?
What's going on here?
#2
06-27-2003 | 06:05 PM
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From: Metuchen,NJ
#4
06-27-2003 | 06:17 PM
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From: here
#7
06-27-2003 | 06:29 PM
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From: Motor City
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#12
06-27-2003 | 06:44 PM
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From: here
Originally posted by MaxTorque02
Soap: Rule of thumb always seemed to be .040 or so for 8 lbs. of stock boost, .038 for a 2#er, .034-.036 for a 4/5#er.... of course you can go a little wider with warmer weather.
#13
06-27-2003 | 06:49 PM
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From: Motor City
Originally posted by cyntaxx
Maxine, do you ever have anything important to say? Notice how everyone in this thread is trying to help the guy...
Maxine, do you ever have anything important to say? Notice how everyone in this thread is trying to help the guy...
Originally posted by cyntaxx
Soap: Rule of thumb always seemed to be .040 or so for 8 lbs. of stock boost, .038 for a 2#er, .034-.036 for a 4/5#er.... of course you can go a little wider with warmer weather.
Soap: Rule of thumb always seemed to be .040 or so for 8 lbs. of stock boost, .038 for a 2#er, .034-.036 for a 4/5#er.... of course you can go a little wider with warmer weather.
Remember you always want to run as wide a gap as possible without it blowing out........more flame front on the plug will yield a more complete combustion in the cylinder.
--Joe
#14
06-27-2003 | 06:52 PM
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From: here
Originally posted by soap
I kinda agree with that however, I found that with a colder plug you could keep the gap a bit wider.
Remember you always want to run as wide a gap as possible without it blowing out........more flame front on the plug will yield a more complete combustion in the cylinder.
--Joe
I kinda agree with that however, I found that with a colder plug you could keep the gap a bit wider.
Remember you always want to run as wide a gap as possible without it blowing out........more flame front on the plug will yield a more complete combustion in the cylinder.
--Joe
I plan to gap mine at .034 (TR6s) with my 4# and 50-75 shot of nitrous.
