What kind of iat's do you see in a pull?

Also in what ambient temps?

 

I think the blower dyno only measures parasitic losses, temps and pressure. It would be good to see more details. Given the displacement of the two blowers, Im not surprised to see these results, its not really a straight up comparison since the KB is a bigger blower. The KB numbers are impressive but it displaces more volume per revolution whereas the TVS spins faster to get to that level because of the lower displacement therefore more heat generated.

I have enjoyed using the 2.8 because I have designed the inlets and outlets myself and have utilized an off manifold setup with a FMIC which keeps my IATs quite low during a short run. I am also playing with various types of intercooling and now experimenting with an A/A plus A/W inline combo for which I will post some results this spring.

 

Its about time for me to do something different, currently running the 2.75 pulley and the new cam I have is going to bleed off some boost. Might have to get some info on the 2.8 or maybe ill just go a complete different route.

 

Pat, the 2.8 is about an inch longer towards the back so some adjustments may be necessary. - you'll also need an 8 rib setup for the 2.5 inch pulley but you wont regret it - the sound is awesome - more of a deeper tone and 25lbs of boost on tap. Just the twin screw core will run you about 800.00 so cost wise not a bad upgrade for the money if you are willing to craft the inlets and outlets. The advantage of an off manifold setup is you can do all the intercooling you want; the 2 stage intercooler im building is starting to look promising. If I can get the IAT's down to around 50F then even 10lbs will rock!

 

My IAT's are good, i dont see more then 14-16 above. I am just waiting to see how much boost i loose with my cam.

 

Pat, You're IAT's are excellent. I still have some heat soak issues. I think my bypass routing is too small at 1.25. Once I get going it is fine only 10 to 20 degrees above ambient. I ran 3 inch all the way from the blower to intercooler and to the intake. Wonder if it makes a difference if I had used 2.5 piping to the intercooler.

 

My IAT zooms when I am sitting still. I never even mention it when people ask about my temps, because it drops right away when I get moving, or when the fans kick on. If you have HP Tuners, you might be able to enable electric fans with the EIO by IAT.

 

I am running 3" all the way as well, I redid my piping. I no longer have any silicone elbows.

 

If I can trigger the fans on with the IAT`s that would be fantastic, I`ll check to see if this can be done in efi live.

 

I was thinking of doin this too the bearings are maxed with my 3 1/8 sc pulley and 10% overdrive crank..... I was told by KB the off manifold style made by autorotor has a different style inlet and oulet ports