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turbosax2 t25 Dyno

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Thats one heck of a jump. I guess if you know thats what you want then no sense playing around with anything in between. Making a leap from to the big boy for drag racing should make a nice build thread...
 
It was a joke, the car's not getting a 42r.
















That would be much too small. It's getting a GT6041 LOL
 
My goal for the car is to be able to do it all. Street, drag, autox, and road race while still maintaining a reliable and decent looking car. If it weren't for autox, the car would be a lot easier to build, but the autox means I have to keep the turbo very responsive. I don't plan to compete in any of these disciplines; just have fun doing it and have fun building the car to the best of my ability and budget :)
 
internal wastegate I assume?

Yes, it's an FP 17psi wastegate heavily shimmed. I put that on as an attempt to hold boost, but it really didn't do any better than I could get with the stock gate.
 
I'm just now starting to play with the boost control feature with Link but couldn't you have increased the duty cycle at 5500rpm + to maintain ~16psi instead of watching it fall off to 12psi?

:dsm:
 
That's too bad. I was under the impression that by increasing the duty cycle in the higher RPM's you could maintain a fairly steady boost curve with a smaller turbo.

I've got a feeling that t25 would fight back if you wire the thing shut. I've seen a glowing orange t25 turbine wheel bouncing down the interstate when a friend did that when I was in high school. He had a open DP and I'm assuming the turbine wheel shaft snapped and it made a quick exit... Def. get some video footage if you ever do it. LOL

:dsm:
 
Glad I just found this thread, very impressive!
 
It would be the last pull for Eric's t-25 if he could get it to hold 17psi to redline, that's a good read for t-28 users though.

How many quarts of oil does it take to fill your SMIC, Eric? :D

:dsm:
 
I do have an FP 17psi wastegate and it's adjusted tight. Like, off by a hole and a half kind of tight. Nothing I did seemed to help, but I suppose I could try even more preload.

Even though the new turbo will be finding it's way on the car at some point, I might keep experimenting a bit with the t25 to get more out of it. New exhaust manifold, port the t25, external wastegate, fmic, etc. I really want to just wire the wastegate shut as it sits, but I need to be ready to drop the turbo on immediately if the worst happens :)

I also saw some interesting suggestions in the thread with the t25 running 10's. Some people were suggesting a big wastegate would help make power because it would alleviate the backpressure. That's an interesting suggestion.

Right now I'm stuck on picking out an intercooler!
http://www.dsmtuners.com/forums/turbo-system-tech/474588-intercooler-end-tank-advice.html


Speaking of which, if anybody would like to donate a t25 compressor housing to the cause, I'll take it. I want to have a spare to hack up and reweld the elbow on facing the driver side for easier fmic routing.
 
Awesome #'s bro . Not sure if ill dyno my tsi but i have simular build going. Gonna rock the t25 for a while. And get all my supporting modds for a bigger snail out of the way . Love how clean your gsx is. My talon is beat ;(
 
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