DYNO pulls in the heat
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
DYNO pulls in the heat
I’m curios to hear what you guys think about dyno pulls in the heat.
I know the numbers are corrected, but what can the same FI car do on a cooler day. I'm guessing it could be significant. Anyone have a data point for a cool vs hot day.
I did a few pulls today and was at about 480 something. I was not shooting for numbers ( I knew the conditions were not ideal and I kept the AF in the 11.5 range and timing at about 17), but I'm just curious how good the corrections are on a FI car. The dynojet report says IAT was 100-104*. My IATs were at about 99 before boost (102 at full boost).
[Modified by QuickSilver2002, 11:33 AM 8/3/2003]
I know the numbers are corrected, but what can the same FI car do on a cooler day. I'm guessing it could be significant. Anyone have a data point for a cool vs hot day.
I did a few pulls today and was at about 480 something. I was not shooting for numbers ( I knew the conditions were not ideal and I kept the AF in the 11.5 range and timing at about 17), but I'm just curious how good the corrections are on a FI car. The dynojet report says IAT was 100-104*. My IATs were at about 99 before boost (102 at full boost).
[Modified by QuickSilver2002, 11:33 AM 8/3/2003]
Le Mans Master
Joined: Jul 2002
Posts: 7,370
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From: Slave to the evil empire
Cruise-In V Veteran
St. Jude Donor '04
Re: DYNO pulls in the heat (QuickSilver2002)
I'm sure the outside air temp plays a BIG part in it, atleast you have an intercooler for your supercharger, I've got a Magnuson and the heat factor gets multiplied by my setup.
I'm not saying that I don't like the Magnuson but if the tuning isn't setup just right the KR comes on and robs all of the timing and the engine falls on it's face, I've got a dyno pull showing 278 rwhp to back this up. I originally thought I had a S/C problem but I realized how hot and humid it was so I hooked up my scanner and recorded a run and watched as the timing went down to 6.5 degrees.
[Modified by runamuk, 3:55 PM 8/2/2003]
I'm not saying that I don't like the Magnuson but if the tuning isn't setup just right the KR comes on and robs all of the timing and the engine falls on it's face, I've got a dyno pull showing 278 rwhp to back this up. I originally thought I had a S/C problem but I realized how hot and humid it was so I hooked up my scanner and recorded a run and watched as the timing went down to 6.5 degrees.
[Modified by runamuk, 3:55 PM 8/2/2003]
Pro
Joined: Aug 2002
Posts: 570
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From: Las Colinas, Texas
Re: DYNO pulls in the heat (QuickSilver2002)
Silver- KR is the enemy on the hot days especially if your timing and fuel/air is on the edge. Computor protects the motor from grenading itself. This is not as prevelent on the cooler days. :smash: :smash:
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Re: DYNO pulls in the heat (Sack Rat TT)
Silver- KR is the enemy on the hot days especially if your timing and fuel/air is on the edge. Computor protects the motor from grenading itself. This is not as prevelent on the cooler days. :smash: :smash:
I'm looking for data points, someone who tuned the same setup in the two different conditions.
