Porting Throttle Body
Thread Starter
Melting Slicks
Joined: Jan 2006
Posts: 2,278
Likes: 1,842
From: Oregon
Porting Throttle Body
There are several replacement throttle bodies available with bigger bore etc. Has anyone hand ported the C8 OEM body and seen any gains?
I remember the C5 throttle body had a few sharp corners and small obstructions. It just made sense to clean that up with a die grinder and a sanding drum.
Anyone try this on a C8?
I remember the C5 throttle body had a few sharp corners and small obstructions. It just made sense to clean that up with a die grinder and a sanding drum.
Anyone try this on a C8?
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,100
From: Fulshear, TX
C8 uses the same throttle body as the C7. The basic Dremel port job doesn't perform well and can experience some odd idle and tip-in tendencies (we learned a lot of this experimenting on the C7). As the C7 generation went along, you really saw throttle body design progressing into what we have today, and what has basically become the standard for LT1/2/4/6 throttle body design: Soler Performance
After using multiple throttle body brands & designs on my C7, with the C8 I just went straight to Soler. What you're proposing doing is basically what we started off with in 2014 on the C7 from WeaponX, Fasterproms, etc.
After using multiple throttle body brands & designs on my C7, with the C8 I just went straight to Soler. What you're proposing doing is basically what we started off with in 2014 on the C7 from WeaponX, Fasterproms, etc.
Thread Starter
Melting Slicks
Joined: Jan 2006
Posts: 2,278
Likes: 1,842
From: Oregon
Interesting. I would think that any clean up to the throttle body would help the airflow, but with the MAF and entire system calibrated to the OEM throttle body, those changes could work against you. Thanks for your input.
I ported my C5 throttle body, but I can't say exactly how that worked out because I had a big cam LS3 and that took a lot of tuning with HP Tuners.
It took years of learning to make the LS3 run good. The tuning page for idle was always a mystery.
I ported my C5 throttle body, but I can't say exactly how that worked out because I had a big cam LS3 and that took a lot of tuning with HP Tuners.
It took years of learning to make the LS3 run good. The tuning page for idle was always a mystery.
