twin gt45's to small for 408?
 

hey guys i was wondering if twin gt45's would be a nice combo with a 9:5:1 408? ported 317s and a 4l80? i have the 67mm ones(not sure if there is another size) there T3/4 housings and i think the ar is .81

The common GT45 size is 69mm compressor, 77mm turbine with a 1.05 AR. What's the turbine wheel and is it T3 or T4?

I'll have to check the wheel size. Also I'm not sure if its a T3or4 how do you tell ? I have only had T6 stuff before lol

are you worried about the compressor side not being enough for your final goals or the turbine side being too small and choke off the motor?

GT45's arent small turbos, infact theyre huge youll find alot of 1000+ rwhp twin turbo GT35r 427s around... Ive seen some 1000bhp single turbo GT45 imports too

what? GT45 is more like 80+ mm...

i believe they both mean y2004k gt45 turbos. Which generally are good for around 700 hp per turbo. I think it would be a little slow for spooling but would be a beast up top.

I think liljohn or Martin could fix that spooling thing.

That is a REALLY big turbo for twins. I don't know if you'd ever get them spooled properly.

The exhaust side of the turbo is pretty big. Maybe a QSV will help things out.

This guy needs twin 101s!!!! pro mod ftw!!!!