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Reload this Page 1st Track Day; Surging/Stumbling Power loss after corner on straight stretches


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Old 06-25-2022, 12:48 PM   #57
GunMetalGrey

 
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What happened with your stockers? Or did you want higher flow?
Yeah higher flow, I have a long tube headers now and I have a Magnuson 2650 that will be installed in August. Sold my stock OEM cats
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Old 06-25-2022, 01:18 PM   #58
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Did they recommend any cats that could hold up on the race track?

Kooks says they have high output GESI versions that are better than their standard GESI green cats but they would not say if they would hold up to track use.

G sport by GESI has some that are rated at 1200 hp per cat but again I don’t know if they would hold up on track. I will probably call them and find out.

https://gsportbygesi.com/high-perfor...tems-products/

No. Catless was their recommendation.
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Old 06-25-2022, 03:05 PM   #59
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No. Catless was their recommendation.
Good to know, I’ll contact GESI anyways but I’m sure the answer will be the same
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Old 06-25-2022, 05:50 PM   #60
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Yeah higher flow, I have a long tube headers now and I have a Magnuson 2650 that will be installed in August. Sold my stock OEM cats
Moar power, eh?
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Old 06-26-2022, 11:04 AM   #61
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Moar power, eh?
Yeah probably another 100hp without cams, that’s all for now, go to compete with those GT500 and hellcats in a straight line
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Old 06-26-2022, 01:24 PM   #62
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Yeah probably another 100hp without cams, that’s all for now, go to compete with those GT500 and hellcats in a straight line
Strip?!?!
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Old 06-26-2022, 07:47 PM   #63
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Strip?!?!
something like that haha
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Old 06-27-2022, 10:43 PM   #64
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Yeah probably another 100hp without cams, that’s all for now, go to compete with those GT500 and hellcats in a straight line
ZL1... could you do a pulley upgrade for that 100hp?
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Old 06-28-2022, 10:47 AM   #65
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ZL1... could you do a pulley upgrade for that 100hp?
Perhaps but I track my car, so heat soak would be an issue... plus I might do cams later
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Old 07-01-2022, 09:40 AM   #66
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Perhaps but I track my car, so heat soak would be an issue... plus I might do cams later
Ahhh. BTW I talked to my track day guy (instructor). He has a ZL1 1LE & ran into the same fuel starvation issue on right-handers, so it may just be a tank-shape & fuel system design flaw... Said best solution is just to ensure the tank is full before sessions (pita, but unsure how else to address it as this point).
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Old 07-01-2022, 12:08 PM   #67
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Ahhh. BTW I talked to my track day guy (instructor). He has a ZL1 1LE & ran into the same fuel starvation issue on right-handers, so it may just be a tank-shape & fuel system design flaw... Said best solution is just to ensure the tank is full before sessions (pita, but unsure how else to address it as this point).
Thanks for the information, I’m glad to know it’s not just my car, yeah I fill up after every session
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