MSD Atomic Intake: Throttle Body Size
Thread Starter
Drifting
Joined: Feb 2000
Posts: 1,917
Likes: 109
From: Crystal lake Il
2022 Corvette of the Year Winner -- Modified
2021 C4 of the Year - Modified Winner
MSD Atomic Intake: Throttle Body Size
I just installed an MSD Atomic intake on my 2016 C7, I used a stock ported TB, any benefit of going to 95MM?
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Pro
Joined: Apr 2019
Posts: 699
Likes: 421
From: Armonk, NY
even on stock cammed cars. And not just the "feel" at throttle tip in. I would go right to a NW or Katech 103mm. Stock is 87. I had a wildly cammed LS3 with a ported Katech 90mm TB. I also had a Nick Williams 102mm but I couldn't get it to be smooth on tip in. It was choppy and abrupt--even after alot of time spent tuning. I reinstalled the ported LS3 TB and sold the 102 NW. I was tuning it myself and was learning at the time (well still learning!) and I believe a more experienced tuner could've made it work great. Keeping the 102 would've DEFINITELY made more power than my ported 90mm. The ported stock 87mm just can't compete with a 103mm TB. Just make sure to port the opening of the MSD to match the 103mm diameter (if it isn't already)
Thread Starter
Drifting
Joined: Feb 2000
Posts: 1,917
Likes: 109
From: Crystal lake Il
2022 Corvette of the Year Winner -- Modified
2021 C4 of the Year - Modified Winner
I ported my own, I did see a dyno test by a tuner that added a 103 to a stock cammed car, there was no gain really 1hp. Probably gain throttle response more than anything
