new turbo but witch one

[Quattronaut]

IMHO you have to decide between under and over 500hp. The 500hp frontier is a quite hard one; below, the Wagner stuff works, and so do hydraulic heads, and it´s the very streetable setups with full boost between 3000 and 3500 possible with 2,2L.
Above, the Wagner stuff maybe limitting power or reliability, and packaging with the turbo housings gets tricky, so maybe tubular mani should be used. Since the turbos get bigger, there won´t be boost under 4200, and you should do a stroker or a mechanical head to have a driveable powerband.

So go for 450-480 hp and the wagner/hydraulic/stock setup with boost in the lower 3000´s, or go 520+ with stroker or higher revs. The "just 500" number is, in MY eyes, a very difficile zone.

[s2dk]

J
I do not have any wagner stuff and wil properly not get any. Think its over priced
I have a turbular manifold on atm with a sucky ebay turbo. It will not go anywere over 1 bar ��
Thats why i want a new one
But im thinking to go with gtx3076 og the new gtw3476r
But i cant figure out wich ar i should go for. Maybe go with 063 and then see if it surging

[Quattronaut]

Good choices you know, what you gotta do around your motor?

[s2dk]

What do u mean?
Like what spec i want or what parts to use?

[K Simmonds]

Im not on a budget. ☺

Go for a Bog Warmer (Borg Warner) then IMO or some exotic KKK from the TTE.

Quattronaut raises good points about 500BHP being a frontier so to speak, it's one I've been thinking about myself a good deal recently.

For 500+BHP in a street car you really need to go for a good quality tubular manifold and seriously consider increased capacity to help with spool up if you want a car that's nice to drive with a wide power band.

A well ported head is absolutely essential for your goals, the stock one's are pretty crappy and present a major restriction above 500 BPH....if not well before that.

The hydraulic lifters will cope with 500BHP or more, what they won't tolerate is the high RPM's that come along with a big turbos usable power band.

Edit...Typed this while you guy's were posting, what tubular EM do you have?

Garrets are good but Borg Warner's are even better.

[s2dk]

Not going bw
Its a hand made one. Dunno who made it if it sucks it will be re fabricated

[s2dk]

There is one on gere that made 520 on stock head with a gt3076?

[Quattronaut]

Some in here will confirm such numbers. I won´t.

[s2dk]

http://www.s2forum.com/forum/showthread.php?t=73865&highlight=happy+dyno

This thread

[diesel des]

A gt3076r is happy at up to 500 bhp. Some results will show higher or lower but 500 bhp is a fair maximum.

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[popdemonic]

TJ:it seems this thread is interested since i'm going to rebuild
the AAN and also the new turbo.my 2871 just died at the night
with M3 E46.I'm going to get the I beam rods with all fresh bearings
My power goal is the same sub 500HP and still driveable on street with
fairly spool up time.I just joined the Group Buy of Wagner 'EM.I have
the one with KKK flange but i decided to get T3 flange for more
Alternatives.yes i'm on the budget due to needing for some rebuild
Parts ie,head studs,headgasket set etc.I have heard a good thing
about holset and its lrice is fairly cheap and when it comes to a rebuild
time.it's totally another world comparing to Ball Bearing turbo BTDT.
Can anyone recommend me about the Holset?I love my GT2871 .It's
ultra fast spool just like the stock K24 but yes i've been with her
for 10years.i need some more smile on my cheeks.

[s2dk]

i may have gotten a great deal on the gtw3476 but cant decide haha.D

[diesel des]

Gtw isn't as good at the gtr Garrett but obviously cheaper from memory

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[s2dk]

Yah i know
It has allmost same size as a 35 but should spool faster than a 35
I dont know its a freaking jungle
But i can get a gtx3076 for the same price as a gtw but the gtw should make more power for the future

[diesel des]

What are the wheel sizes of the gtw34?

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