anyone can tell me a gt35 garrett .63 a/r when is make full spool at 15-20 psi on lsj ?

and a garrett gt35= wich turbo in precision?

 

i had a gt3582 and it spooled around 4500rpm. the smaller exhaust housing on the gt3563 should spool up around 3500rpm

 

what is your max psi you have at 4500rpm?

 

What are your power goals first of all. Obviously not much on only 15-20psi. A 35r is going to be laggy for no reason. There are a lot of turbos out there. Pick one to match your goals

 

first year i would make build and run to low boost maybe 10-15 psi and second year i would forge my block and go with 20-25 psi i would hit 400 whp i think is feasible?

 

You can hit 400whp on stock motor. 10-15 psi on an aftermarket turbo setup is worthless to be honest

 

^^^ this

 

x15


gt3071 (.63) should net you @400whp at 21psi-ish depending on the tune little laggy out of boost down low, full spool @3200
gt3076 (.63 exhaust housing) should spool up @3500-3700 rpm full boost and make 400whp+ same boost
60-1 (.63) 400+whp @21 psi full boost 4200rpm ish
5857 438whp @22 psi full boost @3500rpm
6262 .63 a/r 500+whp 25psi full boost @4000rpm

5557 .63 a/r 400+whp 25psi full boost @3200rpm

that's just the few I've tested so far, all on stock motors

6262 car w/ zzp stage II cams (no dybo stock motor, 27psi was outrunning a supercharged c5 on e85)
http://www.youtube.com/watch?v=q45sBRxaDgE
same car with 5857 (stock cams) 438whp
http://www.youtube.com/watch?v=Xx7memhzX-I
same car with 3076 (stock cams) 420whp
http://www.youtube.com/watch?v=yuzbc1WCSmI
05 lsj (different car) 3071 stock motor 396whp @20psi
http://www.youtube.com/watch?v=cD8_fyu76_0
06 lsj 60-1 stock motor 444whp @23psi
http://www.youtube.com/watch?v=gHiJk...feature=relmfu
5557 car (only 17 psi due to leaking coolant and other issues with motor) it's the silver car in there, sorry for the long ass video didn't feel like editing (start @4:21) 317whp @17 psi bad boost controller so stopped at that
http://www.youtube.com/watch?v=u0A5Pmr8FWQ
60-1 built motor (minus sleeve doh) 17.5 psi 438whp
http://www.youtube.com/watch?v=iFI3K...feature=relmfu

 

so its safe 400whp for stock motor? cause mine have 170 000 kilo i think is alot for put 400-450 whp in ?

 

as long as it wasn't mistreated (i.e. proper oil change intervals) milage really doesn't mean much on newer motors.
tune conservative and it'll live. infe's car has been over 400whp for 2 years and @500+whp for over a year stock motor and he just pulled it apart over the weekend (no reason just wants more power) and it looked new internally, bearings were fine, crosshatches still in cylinder walls etc. granted he's under 50k miles but it more than likely would have lived for a while

 

how many trannys has he gone through in 2 years?

 

2 blown, had swapped out the original non lsd trans since the car basically didn't go anywhere lol. but it wasn't blown

 

thats actually not as bad as i expected haha

 

I vote 5857 lol because i have one. for 400whp i would say get the ZZP S252et turbo and you should be good. Nice low end response no point in such a big turbo if your goals are not that big im not sure but i think the BNR will net you that as well and those are priced very gud as well. Hahn makes a Super 20G that bolts up as well that could make you over 400 but they use old turbo tech from what i heard do not quote me on that.

 

if i buy one news you think im better to get 5857 or 5858? and for have full spool at 3500 rpm i presume is a .63 a/r i need and not .82?

 

.63 especially if you're not looking into making huge power (I"m talking 500+whp)
.82 you'll make more up top, but sacrafice a little spool time

 

There is s lot of great info in here!

 

I would have to agree. It's a 2.0L. Ideally I would like to see a GT28RS or a GT3071 at most.

Depends on tuning to be quite honest.

I personally always opt for the higher A/R.

 

yeah the gt35 is quite large for the 2.0l
i will be going the precision 58mm for my lsj. A 252et is a great turbo for 2.0l also, I just didnt want to use a bullseye turbo.

 

there are hahn videos of a cobalt ss on youtube making 440 whp on the gt35 but i feel its too much lag for the small 2.0. I am going to go with a GTX3076 with a small ar .63, right now my 20g is plenty, but in time... and still make 500 hp compared to the gt35's 440 on our car.

Look into the gtx turbos, they were released only in the past 2/3 years.

 

don't even pay attention to that gt35r video. that engine had 8:1 compression and made 290lbft of torque to go along with that 440whp bad engine build with not enough boost

 

it did seem like there was something wrong there, tuning?

 

a lot of things play into it. such low compression is going to make the turbo even laggier. it's gonna suck hardcore under the curve. now you have this peaky 440whp with no torque. never understood that build

 

think my car's video is still up on the site first stock motor car over 400whp lol.

 

link or it never happened.