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Old 02-25-2013, 03:43 PM   #43
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Quote:
Originally Posted by IcePick06 View Post
off topic but I don't know why the heck GM didn't put a 90mm TB on the ZL1, CTS-V or ZR1 when they had the parts already from the LS7 which has been around since 2006. GM must've known these S/C cars get modded and the 90mm TB would've been a better baseline to start with.
I asked Al from GM at C5 fest in Indy and he said they had to use the 87mm because the 90mm caused the engine to get hotter faster due to the increased HP and it started pulling timing faster......he said it was a delicate balance they were trying to stay within and they had to go with the 87mm.
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Old 02-25-2013, 03:54 PM   #44
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They do pick up a good bit of power and are cheap and easy to do.
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Old 02-25-2013, 04:46 PM   #45
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The VMax CNC pattern ported OEM unit is good for both power and off idle response.

As for heat from the extra power, RX Super Chiller time!
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Old 03-02-2013, 06:05 PM   #46
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In stock no wait also.
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Old 03-02-2013, 08:17 PM   #47
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In stock no wait also.
Is the throttle body as easy to swap as the LS3?
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Old 03-06-2013, 09:30 AM   #48
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Is the throttle body as easy to swap as the LS3?
Yes
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Old 03-06-2013, 11:13 AM   #49
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Originally Posted by SC2150 View Post
The VMax CNC pattern ported OEM unit is good for both power and off idle response.

As for heat from the extra power, RX Super Chiller time!
Are these ported LSA Tb's ported out to 90mm?
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Old 03-06-2013, 12:32 PM   #50
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How much boost are people picking up with a 102mm TB and ported snout?
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Old 03-08-2013, 02:22 AM   #51
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I have an even better question...what's the going rate for porting the blower?
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Old 03-25-2013, 06:06 PM   #52
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At what boost pressue do the connecting rods bend or break?
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