TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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I hope that this string is still going. I've had an 86 IROC sitting in my driveway for years. After a few failed attemps to sell it, I've decided to restore it. It will be all original with the exception of the motor and trans. The trans is complete, I have Marsh pulleys, L 98 aluminum heads (not ported), edlebrock headers, and a few other go-fast parts from TPIS. My question is what intake should I be going with to achieve 350-375 HP while it remains street driveable. The fols at TPIS said it will never happen with a TPI because of the long tube runners. XBased on what I have read, here's what I was hoping to do:
Runners - AS&M seem to be the best compared to EDBK, SLP - including the siamese runners, (plus they make TPIS).
Throttle Body - Mixed reviews on this. Should I port out my stock 48 mm to 52 or is that at all necessary. DOn't really see why I should pay 300 bones for a new one.
Plenum - Keep stock unit just port match to large tube runners
Intake - Looks like edlebrock makes the best hi-flow out there (also make s the one for TPIS)
Please give me some feedback on what I'm trying to do, but more importantly, what you have done successfully and unsuccessfully to your cars.
I hope that this string is still going. I've had an 86 IROC sitting in my driveway for years. After a few failed attemps to sell it, I've decided to restore it. It will be all original with the exception of the motor and trans. The trans is complete, I have Marsh pulleys, L 98 aluminum heads (not ported), edlebrock headers, and a few other go-fast parts from TPIS. My question is what intake should I be going with to achieve 350-375 HP while it remains street driveable. The fols at TPIS said it will never happen with a TPI because of the long tube runners. XBased on what I have read, here's what I was hoping to do:
Runners - AS&M seem to be the best compared to EDBK, SLP - including the siamese runners, (plus they make TPIS).
Throttle Body - Mixed reviews on this. Should I port out my stock 48 mm to 52 or is that at all necessary. DOn't really see why I should pay 300 bones for a new one.
Plenum - Keep stock unit just port match to large tube runners
Intake - Looks like edlebrock makes the best hi-flow out there (also make s the one for TPIS)
Please give me some feedback on what I'm trying to do, but more importantly, what you have done successfully and unsuccessfully to your cars.
Thread jacking is considered rude. Good luck with your project and try the search button
It is when you join a thread with 6 pages of post discussing a member’s ride, and posting questions about your ride that has no correlation to the existing thread. Make a thread concerning your own car and get help there.
Thanks for the pointer. Admittedly, I just joined and did not know of that. I just that that this was a group of Chevy Men who were all looking to help each other regardless of who started the thread and to who's car that it applied to. The topic is flowing better TPI and that's the question that I raised. Does everyone share your view.?
Thanks for the pointer. Admittedly, I just joined and did not know of that.The topic is flowing better TPI and that's the question that I raised. Does everyone share your view.?
Yes, clarifying what he said, this thread is information for you to digest, if you want to know what to do to your project, start a new thread.
This thread is about what we found out that makes a TPI flow better.
