ryan23

iTrader: (5)

What are your impressions? I did a search, found a couple people discussing them but no hard evidence. I'm considering a pair of them for my LS1 RX7 due to packaging reasons. They are offered as a T3 hotside with an optional 1.06 A/R. With that A/R, Garrett claims a 26 LBS/Min @ a 2.0PR through the turbine housing. Mind you, this one per bank. To put it in perspective, a single GT42 (comparable to a PTE76) with a T4 hotside flows ~40 LBS/Min through the hotside @ the same PR. The reason I am focusing on hotside, is I'm concerned with choking on these. Size-wise, they looks like they will fit quite nicely and not require monster piping either. As far as goals go, I'm shooting for 750~800 ATW. Engine is forged 347, 9.0:1 CR, AFR 225's with an LS6 intake. I haven't settled on a cam yet but I'm leaning towards a reverse pattern, mild duration with a 114 LSA. I figured I would bounce that off of AFR and see what they think. Thoughts?

Thanks,

Ryan

LT1-7

I personally think these will be alittle too small but they are great for spool up. How about the GT3040R? Or even the GT35R? I can get you amazing deals on garrett turbos. Contact us

ryan23

iTrader: (5)

I'm not familar with the GT3040R, I didn't see it listed with Garrett. I'm guessing it's a hybrid? What are the specs?

Thanks,

Ryan

smokinHawk

iTrader: (48)

if it does make 26 lb/min per turbo or 52 lbs/min for the pair, it will not meet your goals of 750-800rwhp
youll need turbos that can pump out a total of 70-80lbs/min

if im reading what your saying right on air they put put.

my old setup was putting out 58lbs/min and i was making around 512rwhp on the mustang dyno.

ryan23

iTrader: (5)

Maybe my post was a bit confusing. The 26 LB/Min rating was on the turbine (Hot) side. My concern was choking it up on the hot side by utilizing the smaller T3 housing. I figured a 1.06 A/R would help overcome this (hence the reference to hot side flow). As far as what they flow on the compressor (cold) side, they will do 40 LBS/Min (2.0 PR or 1 Bar of boost) each @ 72% efficiency.

Thanks,

Ryan

smokinHawk

iTrader: (48)

oh ok thanks for clearing that up for me.
doesnt the CAS use around a T3 size? and the incon i would think it would be close to that, as it was some special flanged turbo.

Jammer

iTrader: (1)

Standard CAS used t3/to4b

red ws6 99

Standard incon used t28 on the hotside and a T04B on the compressor side. Both housings were machined out some.

Gary

NXRICKY

iTrader: (1)

It looks like it would be fine and if that size fits but you could go bigger in the future start small. It only money the gov will make more. .lol

I have actually been in conversations with a large some of tubro mfg's and techs... One thing seems to be the same across the board.. They all have a different opion and they all told me the same thing.. You just donot know if it will work until you put it on. I kinda found that a little interesting.
Ricky

eviltwins

GT30R's will be good for an 800 RWHP goal. Most i've seen on a single 30R was 520 WHP, so you'll be gravy.

myss2638

iTrader: (10)

Will a gt30r bolt up in place of a t28? Also what do these normally cost?

eviltwins

AFAIK GT30R's only come with T3 flanges. They run around 1200 a pop. The largest T28 flanged turbo made is probably a GT3071R. They will do 450-475 WHP, and again are in the 1200-1300 dollar range each. They will require mods to an Incon kit because they use a large compressor housing with a 4" inlet, if they will even bolt up.