Quote:
Originally Posted by squish72
Finally received my intake, think I'm going to do minimal porting to it as everything feels really good. Most of the seams in the plastic seem like they step up larger, so the air seems like it wouldn't be affected much.
I also have a 95mm throttle body and dont think I'll actually be putting it on for two reasons.
#1 the altitude I'm at I don't have an issue with map vs ambient air as it is. My altitude is 6400+ and I don't believe throwing a larger throttle body will do much.
#2 I saw the intake is kinda thin on the throat so you cant fully open it up to utilize 100% of the 95mm.
I have access to a milling machine so the TB wont need a adapter if I do decide down the road to install it. I also machined some ofr the cross bar in it just like I did on my stock one.
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I did my porting and it’s dam close. GPI talks about it and address concerns in below link. He’s mainly talking about the 103mm which he has in his hands in the video. It’s not recommended for boost because of thin throat area.
https://youtu.be/rZSprqJHA9I
After adding the adapter plate I could not find a ridge/bump between front of TB opening to the rear of the throat. It’s was a smooth transition. For the price and results I am good with it compared to the MSD and even if it’s not a true 95mm/103mm it’s even on performance with MSD according to the video. But porting only gaining 3 HP was a low point or actually how good the stock version is. I am waiting for GPI to get it on the Dyno with the ported 95 mm.
In your case I would try the different set ups at your altitude and see which one runs better at your track. A tune and the 95 mm you would think at that altitude would still give you an edge. Drag racing at sea level definitely has its advantages.
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LT4 1.7 Supercharger snout ported & 100% Meth
103 Katech TB, KATECH Custom Heads, DSX In-line fuel
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