Originally Posted by
Mrmiata
Surprising on the 74mm comment. I appreciated the difference with it. Not night and day but definitely a noticeable difference. Has anyone noticed a posted "performance gain" number on Needswings site? I don't recall seeing anything there.
My recall was it is about a 15 hp gain projection. I can't remember exactly where I saw it but I'll see if I can find it and post it.
I found out where I got my numbers from. It was from an email with Rob at Needswings when I was inquiring about the HP gain potential. Here was his response.
"Hello, we haven’t dynod the cai’s on the na’s since we made improvements on them but for a estimate I would expect to see 10-15 on the cai and ~ 20 on the dcai. We have lots of flow bench data just not dyno data sorry. "
Thanks, Rob
NeedsWings.com
Given the work they've done on this system, I expect the air flow data to be consistent with their estimates.