Who does rod mod/ls3 intake porting ?
Who does rod mod/ls3 intake porting ? Who's the go-to for a rod modded / ported ls3 intake? Looking to have the TB opening opened up to 102mm aswell if that's a thing.
Done some research . Found a few people/companies.
but looking for first hand experience, pictures etc of the work.
Done some research . Found a few people/companies.
but looking for first hand experience, pictures etc of the work.
I've used GPI (Gwatney Performance Innovation) on my 2010 Camaro SS build. They have been doing them since the beginning.
I would ask for Dan:
https://gwatneyperformance.com/
I would ask for Dan:
https://gwatneyperformance.com/
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I gained about 2 mph is worse air. ET stayed roughly the same. I honestly don't have enough data to say one way or the other, but it is a proven performer with tons of other data from others. People usually also install a ported TB at the same time, but my TB was stock. The general consensus, IIRC, is that a Crawford intake manifold and ported TB is worth about 2 tenths and a few MPH. Yes, I plan on something with more RPM capability.
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If I may hijack a little, I got a GPI rod modded and ported one for my ss, which already had headers, catback and an aem intake. It had a livernois tune for everything but the gpi and it ran well prior to install. Once I installed the GPI rod modded intake without a calibration update, it threw lean codes. Livernois wouldn't update it because they said it wouldnt need update for the gpi. I even sent them logs that showed it was lean, especially at lower rpm. If I recall, it was around 10% lean at lower rpms and leveled around 3% lean beyond and up to around 4400 rpms, where I was willing to pull it to while knowing it was lean.
so, I swapped back to the stock ls3 intake and it's back to normal. My question is, is that typical of a rod modded and ported intake? If I had added fuel, would it have been right? Or did that indicate something may be wrong with the intake, like a vac leak?
so, I swapped back to the stock ls3 intake and it's back to normal. My question is, is that typical of a rod modded and ported intake? If I had added fuel, would it have been right? Or did that indicate something may be wrong with the intake, like a vac leak?
It could be a vacuum leak. My tuner (a very well-known tuner that everyone knows) claimed that a rod mod intake manifold will not require a retune. So, I installed mine without a retune and I have not had any problems and I've been driving it all over the place and even made a few passes at the track.
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