Is there that much difference in 3mm in the throttlebody?

SR TB-58mm
BBTB-61mm
stock-55?

 

 

well if a 58 is better than a fifty five then i would guess that a 61 is better than a fifty eight. smile.gif

 

Yeah, either is better than stock I just want to know what the difference(gains) are of 3mm.

 

I'd like to order one of these tommorow, so any answers tonight would be great smile.gif

 

I found my answer!

 

I found 100mm thtottle bodies if anyone wants anymore info, just PM me

 

Just be careful with the TBs man, if you're gonna be using a VERY large turbine which will make a Boeing 747 jealous when it starts spooling then by all means it will give you the gains you are looking for. If you're going N/A then the TB size is pretty much limited by your engine's swept volume and the flow capacity of your heads and intake runners. Your cams lift and duration also play a big part in how much air your heads are gonna flow, along with your port shape and valve diameter. You can go 100mm if you want, but to a certain point it'll stop giving you gains.