t2 flanged gt3076r ???

[Dcasil80slider]

I have a sr20 with crower s3 cams, solid rocker conversion, 550 injectors 300 zx maf and forged internals. i was considering a gt2871r turbo upgrade but i want to hit about 425 hp and iv heard that the 2871 has trouble getting to this level, my only concern with the 3076r is that its gonna take forever to spool, does anyone have any ideas on this turbo ???

[supreamS14]

The 550cc injectors will flow 350whp on pump gas and 400whp on race gas. I wouldn't take them to 425whp. What are you tuning with? The #2 gt2871r with the 86 a/r turbine housing should make the power you are looking for.

[fast_s13]

bottem mount 3076r wont clear have to go top mount

[supreamS14]

I thought it would clear if you trimmed the motor mount bracket. Or was that the 2876r? Eather way I thought a T2 mani won't have a good flow with a turbo bigger than a 2871r. Is that true?

[srdub-t]

yea if ur stayin t2 just stick with the gt2871r

[Dcasil80slider]

All of my tuning is in a rom tune in my ecu as of right now its set up for 15lbs on a s15 turbo ( currently i have a t25 tho) the cams, 300 maf and the injectors. i also have an apexi safc2 hooked up but currently it is just used as way to monitor the engine. has anyone actually tried to bottom mount this turbo ? if so why doesnt it fit and can it be made to fit ?

[ScorpionT]

You can get the 3076 with a T25 flange, but if youre going for something that size, get a t3 manifold.

[Cameron]

i actually have a T2 .86AR housing for a 2871, or 2876 whichever, if your interested.

[Dcasil80slider]

does anyone know of a bottom mount t3 manifold that would work for a gt3076r ??? im not a fan of top mount i like the stealthy approack cuzz most people figure you cant stuff a big turbo bottom mounted so i like to have a little bit of surprise in store. if it simply cant be done i understand but if anyone has please let me know and if so how

[fast_s13]

i started a topic cause i wanted to do it and everyone said it wouldnt fit so i never tried it

[DrifterProdigy85]

If your gonna go T2 bottom mount, go this option and get rid of the internal wastegate. The external gate should help with having too much backpressure.

http://www.atpturbo.com/Mercha...e=HSG

[david200095367]

my buddy is running a t2x flanged gt3076r bottom mount all he had to do was trim the engine mount backet. so it can be done for all those who say it doesnt fit.

[SuicidnS13]

my buddy is running a t2x flanged gt3076r bottom mount all he had to do was trim the engine mount backet. so it can be done for all those who say it doesnt fit.

I 2nd this quote. Steve Shadows just tuned one and posted up results on FA and Zilvia a few months back. Really responsive and fast car according to him. Around 400whp as well...

[Dcasil80slider]

Any chance your friend has pics of his build id be very interested in them. also why would this kind of setup need to be switched to external wg ? i noticed someone mentioned backpressure but with space at a premium is a external wastegate possible >?

[SuicidnS13]

my buddy is running a t2x flanged gt3076r bottom mount all he had to do was trim the engine mount backet. so it can be done for all those who say it doesnt fit.

What low mount manifold was he running?

[kentuckyslider]

IMHO, the GT2871R compressor pushes the limits of the T2 flange and the T25 housing much less strapping a Gt3076 compressor on that little housing. My 2871 is nothing more than a heat pump past 22psi on my bottom mount setup and it's capable of 28psi on a T3 housing. If you go any bigger than a 2871R go T3 topmount. Anyone who has raced or drifted the SR will tell you the same thing. The T2 flange and turbine housing is to restrictive for a 30R compressor. I am going holset HX35, treadstone cast T3 mani, 38mm tial WG, and a custom v-band downpipe for less than the cost of a GT3076R(WG). The holset HX35 spools like a GT30R and flows 8 more lbs/min. I got mine for $250 off a 2001 cummins truck with 60K miles.

[smelly240]

bottem mount 3076r wont clear have to go top mount

The 3071r fits - the 3076r fits also -

the ewg housing isnt really going to change mcuh unless ur trying to run LESS BOOST.

the 2871R t3 is NOT efficient to 28psi - it just isnt.

t2 3071R are not junk but they arent terribly impressive either. For a bolt on affair they do the trick just fine.

If you have the money for a proper manifold (peakboost, full-race, or can make your own nice - custom) then go top mount. otherwise its a waste of time anyway. Logs aren't worth putting a turbo beyond a 50 or 57 trim T3/T04e on.

The 2871r doesnt exactly push the limits of the t2 flange... whoever told you that was blowing smoke up your butt. The t3 ones make 5-8whp more usually - and that isnt exactly because of the turbine - its because of the manifold more than anything

[david200095367]

sorry no pics of the bottom mount setup. i think hes running a ebay bottom mount manifold for the ka24de nothing special. ill be running a gt3071r bottom mount in the next few days. i still am looking for a s14 sr zenki apexi pfc djetro if anyone has one for sale.

[Dcasil80slider]

so does anyoe want to add to this thread ? im tryin to find a gt3076 with a t2 inlet flange but set up like a gt2871rs so that i can use my stock turbo inlet off of my t25 and also use my stock turbo outlet (hotpipe elbow) but i do want to go external wastegate so if anyone wants to chime in im listening

[david200095367]

so does anyoe want to add to this thread ? im tryin to find a gt3076 with a t2 inlet flange but set up like a gt2871rs so that i can use my stock turbo inlet off of my t25 and also use my stock turbo outlet (hotpipe elbow) but i do want to go external wastegate so if anyone wants to chime in im listening

it will fit worse case you trim a little on the engine mount bracket. my gt3071r bottom mount fit easily and i have about 1/4 room to spare between the turbo housing and engine mount bracket.