Over at the other thread I posted this in response to the response to the fact that to use this throttle body ALL we had to do was buy 3" to 3.5" tubing adapter for our existing CAI. Why would I want a larger throtle body and then kill a lot of the advantage by staying wih the samaller size CAI intake tube diameter? A little math here....on a 1/4" inch of flow loss (3.5" dia circle - 3" dia circle = 1/4" circular diameter) on the smaller 3" diameter cai inlet.. Area of a circle = pie * radius squared Pie = 3.14 3.0" throttle body radius = 1.50 (radius is 1/2 of 3.0") 3.5" throttle body radius = 1.75 (radius is 1/2 of 3.5") so.... 3" cai tube inlet 1.50 (radius)squared = 2.25 3.14 x 3.06 = 9.61 So area of 3.0" CAI intake tube end is about 7.06 square inches 3.5" intake side 1.75 (radius) squared = 3.06 3.14 x 3.06 = 9.61 So area of 3.5" throttle body intake side is about 9.61 square inches 9.61-7.06=2.55 square inches of lost flow. So this means if I am reducing the intake from 3.5" to 3" for the CAI tube adapter I am loosing 2.55 square inches of flow. 2.55 square inches sounds small but that is a huge effect on flow (draw a square that is 2.5" by 2.5" and imagine how much air you could move thru it). In piping calculations I have heard that the rough equivalent is 6 times the flow for every pipe size. Not to mention pressure losses which will also be a side effect. I think that we will need new CAI intake tubes that end at 3.5" and not 3.0" to take full advantage of the purpose for which we bought a larger intake throttle body
damn nathan....... there you go with the calculations again!!!! hahahaha i agree, i would be looking to find/make an elbow for my mopar cai that is 3.5" to fit without trying to "adapt" something....
Dahahahahahaha, I'm with Chase on this one. I got tired of giving my credit card number, so I just sent it to them. Too funny. Good job PPP. Put me on the list. Actually scratch that. Just send me one. :beerchug:
I don't think the Mopar goes up to 3.5" anywhere along the tube. If you have something like an Airhammer, AFE or AirRaid you will have to move up the tube till it gets to 3.5" and cut there.... then adapt. I think all these have a filter that has more than a 3.5" inlet or at least a 3.5"? Let me investigate this...I will get back to y'all.
so forgive the n00bness of this question... what (if anything) would a 90mm TB do for someone whos mods are Exhaust, AirHammer Intake, 180* T State and Diablo 93 CAI Performance tune?
experts! help us! hahaha time to sit back and let people who KNOW what they are talking about do the splainin....izza: :beer:
Considering a stock engine gained 17 and a 426 gained 22, its pretty safe to say you will gain between 17 and 22rwhp and 20rwtq.
ok so again...im stoopid...do you carry these and more importantly what is the cost?...feel free to PM me if you dont wanna post it up here
Is your tube 3.5" all the way? Were does it go from 3.5" to 3".....after the 90 or is the 90 a 3.5" to 3"?
i have one last dumb question for the night... If i were to get the bigger TB...do i need to do any modification during install or would it be "plug and play"
Plug and play if you have a Diablo You have to modify allot more than air/fuel. You will need to modify several VE tables to compensate for the extra air coming in at idle. It will not be as simple as adding fuel at WOT with the predator. We will be including a tune with the tb. If you already have a cmr tune, you will have to send us the tune for us to modify necessary tables.
