twin gt45's to small for 408?

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Feb 16, 2013 | 08:12 PM

Rickys S/C Z28

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From: MOREHEAD KY

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

Feb 16, 2013 | 08:36 PM

LS1NOVA

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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?

Feb 17, 2013 | 07:04 AM

Rickys S/C Z28

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From: MOREHEAD KY

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

Feb 18, 2013 | 02:16 AM

ayousef

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From: Dubai

Quote:

Originally Posted by Rickys S/C Z28

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

Feb 18, 2013 | 02:16 AM

ayousef

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Quote:

Originally Posted by LS1NOVA

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?

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

Feb 18, 2013 | 09:01 AM

SMOKY

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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.

Feb 18, 2013 | 10:06 AM

dirty_old_chevy

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Quote:

Originally Posted by SMOKY

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.