Heat Difference 2.5" vs 2.8"
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From: Braidwood, Illinois
Heat Difference 2.5" vs 2.8"
i'm throwing on a 2.5" later this week and getting re-tuned, how much of a heat increase
(iats and iat2s) will i see any 1 have any logs from hptuners they can post??? after a 1-3 pull at the track i'm seeing about 152iat2 on the 2.8" how hot can i expect from the 2.5"?
(iats and iat2s) will i see any 1 have any logs from hptuners they can post??? after a 1-3 pull at the track i'm seeing about 152iat2 on the 2.8" how hot can i expect from the 2.5"?
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From: akron,ohio
i'm throwing on a 2.5" later this week and getting re-tuned, how much of a heat increase
(iats and iat2s) will i see any 1 have any logs from hptuners they can post??? after a 1-3 pull at the track i'm seeing about 152iat2 on the 2.8" how hot can i expect from the 2.5"?
(iats and iat2s) will i see any 1 have any logs from hptuners they can post??? after a 1-3 pull at the track i'm seeing about 152iat2 on the 2.8" how hot can i expect from the 2.5"?
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From: Braidwood, Illinois
cobra h/e, meth
farh.
ha ya i NEVER EVER do back 2 back pulls though man always let it cool 4 a half an hour or so even on the street. gonna play with the meth mix some
farh.
ha ya i NEVER EVER do back 2 back pulls though man always let it cool 4 a half an hour or so even on the street. gonna play with the meth mix some
Last edited by Altiery54; Aug 24, 2008 at 01:32 PM. Reason: Automerged Doublepost
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From: Braidwood, Illinois
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From: N. Side Chi-Town
ah poor balt,dont forget that chances of ur belt starting to slip might increase cuz the pulley has slack now cuz its to small for the s2 belt
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From: Braidwood, Illinois
what mix of meth would be a good start point?
my belt was bought used and ran on a 2.5" for 8K miles w/ no slip. its been on the 2.8" for 700 miles
my belt was bought used and ran on a 2.5" for 8K miles w/ no slip. its been on the 2.8" for 700 miles
Last edited by Altiery54; Aug 24, 2008 at 01:35 PM. Reason: Automerged Doublepost
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From: akron,ohio
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From: Seneca, South Carolina
I seriously think that's a bad idea. If you are already seeing 150+ degrees, then you need to work on cooling stuff. a 2.5 pulley is gonna have you over 200degrees IAT at the top of 3rd like you sit. Good luck, but I think this is a horrible decision.
300 maybe
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From: Duncannon, PA
152 degree IAT2 seems pretty high even for a 2.8". I have a 2.9" and the last two track visits I had my IAT2 was about 20 degrees over my IAT2 at the line. It was usually high 90s to 100 and I would cross the traps at 115-120.
I know the smaller you go the more heat you get, but that seems like a big difference from just .1".
Do you have a log for a 1st to 3rd pull, basically a track run? I would like to know what your IAT2 is at the line and when you cross the traps with the 2.8".
If I were you, I would not drop to a 2.5". I would say 2.7" is the lowest I would go.
I know the smaller you go the more heat you get, but that seems like a big difference from just .1".
Do you have a log for a 1st to 3rd pull, basically a track run? I would like to know what your IAT2 is at the line and when you cross the traps with the 2.8".
If I were you, I would not drop to a 2.5". I would say 2.7" is the lowest I would go.
Last edited by BriantheLion26; Aug 24, 2008 at 10:11 PM. Reason: Automerged Doublepost
