Thinking about picking up this 76mm turbonetics

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Aug 26, 2015 | 10:36 AM

dieselman88

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Thinking about picking up this 76mm turbonetics

I've got a 98 ls1 Trans am, ls6 block, 243 ported heads. Currently has the on3 76mm turbo kit on it. My buddy has a 76mm turbonetics .81 ar and .96 on exhaust side I believe. Just wondering if it would be worth it to swap it out, or if id see any gains at all.

Aug 26, 2015 | 11:35 AM

jay_rich

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basically the exact same turbo unless you get the turbonetic 7875 which had a 75mm turbine.

Jay

Aug 26, 2015 | 12:03 PM

dieselman88

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Was just thinking about upgrading to a better turbo this winter. Seems to quite for a turbo car, can barely hear it. Thought about maybe running the wastegate back into the exhaust as well

Aug 26, 2015 | 12:41 PM

FourG63 97GST

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are you maxing out your current turbo? not sure what the goal is to justify the upgrade.

Aug 26, 2015 | 01:01 PM

dieselman88

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No, not maxing it out. You can hardly hear the turbo spool, even with cutout open. Sounds nothing like my friends precision turbo, but he also paid a pretty penny for it too.

Aug 26, 2015 | 08:26 PM

Black_Sunshine_99

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Just for reference my TC78 is quiet too but once I put the hammer down and get into boost and wastegate opens it sounds like all hell is breaking loose in the front of the car lol.