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  #1  
Old 06-27-2013, 06:38 AM
Zoupop Zoupop is offline
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Default Turbo and intercooler

Hi,
Im thinking to change my stock turbo for a GSP t3/t4 ebay turbo and an intercooler(26x11x3) setup with 2.5'' piping but I don't know if the size are ok or to big.

Here is the spec of that turbo :

Intake: 3''
Inlet: 2''
Compressor trim: .50
Compressor Wheel diameter: 50.16 / 76.84
Turbine Wheel diameter: 54.06 / 65.20
Exhaust Trim: .57ar

What is the trim means and is this to much?? Is the T3 flange got standard size or you can have T3 bigger than other?? Can I use an external wastegate??

thanks, all comments are appreciate and sorry for my English (im from quebec)
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  #2  
Old 07-02-2013, 07:18 PM
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Jason Jason is offline
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This is very similar in size to what I have, though I did all 3" charge piping to match the 3" inlet on my NA manifold. The .57 A/R is slightly smaller than mine which is a .63. Should spool a little better than what I have, but be aware it will be slower to spool than stock even with more fueling, however you will gain some top end. I would try to find an internal wastegated turbo, as mounting an external wastegate would require welding a flange of some type to the factory manifold, which is cast and not the easiest thing to weld. T3 flange is standard, so no worries there.

Jason
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Old 07-03-2013, 05:48 AM
Zoupop Zoupop is offline
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ok if I understand right it could be a good choice of turbo but it will spool at higher rpm ?? for the external wastegate if I plug it unto the hole for the EGR maybe it could work or the hole is too small? I think an oïl cooler could be a good upgrade too. For the fueling is there any brand that make bigger injector?? Iv'e search on internet but I didn't find any.

thanks you
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Old 07-03-2013, 10:48 AM
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Jason Jason is offline
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Yes it will need more rpm to spool, but it will still be a streetable combo... As for fueling, you'll need to turn your pump up, injectors wont increase fueling to the engine, though having a fresh set of injectors, set with correct pop pressure will help it run its best. I would use the "GTD" nozzles, (DNO SD 293) is the part number.

Jason
__________________


Back again with a '84 760 GLE D24T/ZF

SOLD but not forgotten! 1984
760 Sedan, built D24Tic/ T-5 swapped

My engine build: http://www.d24t.com/showthread.php?t...t=engine+build
T-5 swap: http://d24t.com/showthread.php?399-W...to-quot-w-pics!
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