willjs7

iTrader: (1)

how come no one uses SP turbos on rotaries?
is a 67mm turbo too much on a stock ported 13brew motor?

just a few random questions lol

willjs7

iTrader: (1)

if i do go with a sp67 which a/r would be better for stock port, .81 or .96

im guessing .81

willjs7

iTrader: (1)

a friend of mine reccomended a sp63 for me.

FD Rey

No it won't be too much of a turbo for a stock ported motor. I pm'd you back BTW. Sound Performance, like I said on the other thread, is practically the same thing as Percision Turbos, which is the same thing as Garrett. SP makes a lot of stuff for Supras, that's why you hear about them more on the Supra forums. I know your brother sure has! I'd personally go with a .81 to keep lag to a minimum. Quite a few members are running that 67mm turbo on here, kabooski, Karl Byck, CrispR6, Scrub, just to name a few. First two guys made over 500rwhp.

crispeed

Just like FD REY said.

SP=Precision=Garrett.

willjs7

iTrader: (1)

thanks a lot guys...
will the HKS T4 manifold mate with this turbo.. and will there be enough clearence from the side of the bay and the LIM?

crispeed

I personaly believe the SP63 is the best turbo for a 13b running up to about 20 psi. It offers the best of both worlds. Quick spool-up and top-end power. I have done a couple of cars with the said turbo all making around 450 rwhp plus 17-18 psi on pump gas. Directfreak just made 492rwhp at 20.5psi with the same turbo.

willjs7

iTrader: (1)

i think im gonna go with the 67 based on the price i can get it for , as well as how much HP it can make compared to the 63. and it still has relativly quick spool times from what i see?

anyknow know about the manifold ^^^

crispeed

It depends on the compressor cover. If the regular HKS TO4-R can fit on it then it will fit. The Precision turbo have have a couple of different covers based on power requirments. It basicaly comes with a TO4-E, 60-1 or Precision high flow designed compressor style housing. I've heard of some people having clearance problems hith the high flow housing. The other two should fit without any problems. I mainly use the 60-1 style compressor cover for fit also. The turbo can also be ordered with any type of tubine selection you desire. I mainly use a .81/P-trim with a tangential style housing. Precision is not a fan of divided turbine housings due to reasons I'm not going to get into so if you desire one you can custom order one from them or Garrett.

willjs7

iTrader: (1)

ill try and mod the manifold if it doesnt fit... thanks for the input

crispeed

If you're going to be running over 20psi then go with the 67. I have not have any luck with the 63 holding boost at high rpms on heavly ported applications. I've seen the 63 hold 30psi on a 4cyl application making around 550FWHP but never on a 13B. The 67 is the way to go for power above 500RWHP on a rotary.

cripsR6

Give me another month or two and it'll be three out of four.

fdracer

just run a gt40 standard bearing. it'll be the same or better for power and spool than any sp turbo of the same size and it'll be cheaper. the 67mm bw/schwitzer turbos are even cheaper and they make alot of power, but the spool suffers a little due to their large exhaust a/r's.

Jim Swantko

I sold my old SP74 to an FD owner... I think it would be a great turbo for a rotary.

JZ 97 SS 1500

SP doesn't make anything. They rename PTE turbos to SP names. Nothing more nothing less.

Jim Swantko

Yea everyone knows that - but I still call them SP's it just sounds better than PTE.