Quote:
Originally Posted by BlackbeastSS2
I added the 95 MM ZR1 Throttle Body and ported the neck on the LT2 manifold. IMO your wasting your money if you don’t port the neck of the manifold to take advantage of a true free flowing 95 mm opening. As the person previously said you will need the adapter plate, plus a tune. Your tuner needs to select the appropriate TB and recalibrate the MASS airflow with everything thing else that’s effective with a TB change. You just can’t slap it on and say that’s it.
For the guys that’s say get bigger like the 103mm keep in mind if you have the 4 inch air intake tube that’s only 101.6 mm. So you would need to change to a 5 inch air intake full length plus filter and need to port the intake manifold neck even more. That’s putting porting on a LT2 manifold very thin in the neck area and IMO not recommended. Especially if you ever go boosted it would not hold a high boost number. If you have a choke point in your air flow then your defeating the purpose of increasing your power level
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Hey Blackbeastss2, do you think there would be any gains by adding a 95mm tb and I would port the snout of the LT2 intake versus the stock 87mm TB and my unported LT2 intake that is presently paired with a gutted by me air OE air box, no headers, all cats in place with OE x pipe, axle back borla s is the only exhaust mod . The car is tuned for the set up and is on E85. I realize I would have to have the car tuned again, What can I expect if anything? where might there be a loss? where might there be the gains. My only reason to consider it would be for 1/4 mile ET.