Free mods???
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
...is there proof of 10chp gain by pulling the frisbee or a worthwhile gain by installing a 160 t-stat?
Performance increases with mods are listed on my site along with a copla dyno pulls.
About 7yrs ago I spoke with Gordon Kollibrew at Carlisle about the "frisbee" delete and he said if there is no vibration when the A/C cycles it's a good mod. It was installed only because vibration was occasionally noticed by the C4 engineers after the new A/C compressor was installed on all '88s. So in reality the "D"-port 113 heads give 10chp more than the '87 Al heads but it was eaten up by the frisbee addition so the '88 L98 was rated at the same chp as the '87.
Last edited by 65Z01; May 15, 2008 at 08:11 PM.
Drifting
Joined: May 2006
Posts: 1,428
Likes: 7
From: Chewelah Wa
I forgot one....I took the vanes out of my air pump....it was pretty easy and then you don't have to buy one of those air pump eliminator brackets...prolly not a lot of power to be had there but it all adds up.
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,267
Likes: 27
From: Texas
'SUPPOSEDLY' adds 20 chp but i dont believe it
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
No offense taken; I too like to know the basis for mods...
Performance increases with mods are listed on my site along with a copla dyno pulls.
About 7yrs ago I spoke with Gordon Kollibrew at Carlisle about the "frisbee" delete and he said if there is no vibration when the A/C cycles it's a good mod. It was installed only because vibration was occasionally noticed by the C4 engineers after the new A/C compressor was installed on all '88s. So in reality the "D"-port 113 heads give 10chp more than the '87 Al heads but it was eaten up by the frisbee addition so the '88 L98 was rated at the same chp as the '87.
Performance increases with mods are listed on my site along with a copla dyno pulls.
About 7yrs ago I spoke with Gordon Kollibrew at Carlisle about the "frisbee" delete and he said if there is no vibration when the A/C cycles it's a good mod. It was installed only because vibration was occasionally noticed by the C4 engineers after the new A/C compressor was installed on all '88s. So in reality the "D"-port 113 heads give 10chp more than the '87 Al heads but it was eaten up by the frisbee addition so the '88 L98 was rated at the same chp as the '87.
I may question the actual gain but not your source or testing. Outstanding real data in a format that is clear and concise. With that said, if a GM engineer says that the frisbee can go who am I to argue.
Heck, I basically turned my Corvette into a 1970 Chevelle so it is pretty obvious that I shouldn't be giving or questioning any of the advice given here
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Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
It was my graduation present to my son who originally opened this account(an original yellow 1987 5.7). It got hit by a little old lady square in the door post and was not worth fixing. He kept the IROC57 plate as a tribute to that car and put it on his vette. It now resides on his Acura RSX
