bought a garrett gt35 turbocharger for my evo 7.
bought a manifold from South Florida Performance.

when we tried to set it up..the turbo wont fit because of the way the manifold is made up. the adaptor for the manifold is facing down and when we try to position the turbo there , it is hitting the engine block.
so i think i have to make a manifold instead in order for the turbo to fit.l

now for the real question....that i need help with.
please forgive me as i know nothing much of turbos
the turbo has a A/R .65(this is the front piece with the turbine wheel)
and on the exhaust part is marked 1.05

some ppl have told me that the exhaust part is extremely big and that it would take forever to spool.someone said it would start spooling all around 6000rpms.
please keep in mind that i will be using nitrous as well(about a 75-100hp shot)
someone advised me that i should use a turbo with a exhaust piece that is around .63 to .85

please help..give me some advice.i dont know anything!!

 

I am now running a GT35R on my eclipse I get full boost at 4700 rpm. I Also have a full standalne system and a Magnus Sheetmetal intake and 272 cams and my compression is well... above 9.5:1 The 35r is a wicked turbo. With the aid of nitrous it will help it spool quicker.
I still drive the eclipse on the street but I use 100 octane all the time and I get about 25 mile to the gallon. (real lean when off boost, But 11.5:1 A/F when on boost) 20 psi on that turbo and my 5 gear feels like 2nd in the EVO, it just pushes you back in the seat.

 

question - did SFP know that was the turbo you were going to use? Cuz if they didnt and you just bought a manifold to fit a 4g63t I doubt it would fit. If im not mistaken their manifolds are made for a t3/t4....

 

call frank at SFP.net they make a manifold specifically for that turbo...I have that turbo and their manifold on my evo8
did you tell them what turbo u were using?
Good Luck!!!

 

If he has a 1.05 A/R housing on the exhaust, it will be HUGE like a freaking basketball! Even a manifold made for the GT35 is probably not assuming you will have a huge exhaust housing, and it sounds like his exhaust housing is what is hitting the block when mounted on the SFP manifold.

Keith

PS: In other words, you either need a custom manifold or a different exhaust housing.

 

http://www.lancerregister.com//showt...threadid=36026


I do have that turbo, and I will suggest you to go with the back housing 0.87, the one you got it is too big.

 

i had no idea that the turbo would be this big(size wise).
the housing is really huge.
so i just bought the manifold from SFP under the assumption that there would be sufficient space for the turbo.
I can solve the problem by getting a custom manifold made and everything would fit up properly.
but what really has me worried are the mixed reactions to the size of the back housing(1.05)

for the guys that said they are using this turbo.....Pesto360/lilgsx/....are the specs on your turbos the same as mine?

 

btw....thanks for all the input so far guys!
it is really appreciated!

 

I am also running this turbo on my EVO 8. Honestly the turbine housing you have is to big.


I currently have a .82 AR and I believe it is to big. This is why we are changing the turbo set up to a .63AR and a smaller turbine wheel.

 

that's a monster exhaust housing, get sumthin smaller.

 

If you have the big turbin wheel of the 35r it is killer on pump gas . Once you change to the smaller turbin wheel if is just not as good. I am running a .82 4 bolt ford turbin housing the 5 bolts suck. I also notice a louder up better exhaust note come from the 4 bolt housing because of the exhaust exist.

 

OK...

Ok, as for your turbo hitting the engine block. Yes, thats common on fast cars. You have a few options. If its barely hitting, you can remove a MM of material from the block without any issue. and another mm or so from the turbo, and use 2-3 extra exhaust mani gaskets. That will get you 3-5mm...

OR you can buy longer studs from Napa for the head. They are M8x1.25. Then buy a exhaust manifold flange, which I know RNR sells. Put a gasket on both sides of the flange and use it as a spacer, this will gain you about a half inch. Should be enough for anything.

As for turbo size, no one can tell you anything. We don't know what turbine you have and without that knowledge, no one here, Not me, Not Ryan@RNR or Dave@BR or Shiv@Vishnu can tell you how it will act for sure. You probably have some T350 turbine but of what trim we have no idea. If you have the same turbine as RnR and this is a race car meant for the track then your fine with nitrous, if this is your street car then your turbo sucks.

And YES, you DO deserve this to be a pain in the ***, because you bought a turbo, the most critical component of your car, without knowing what turbo you bought. GT35R refers to the compressor wheel...the turbine, turbine housing, and compressor housing are all just as critical and have to be properly sized, even if there is a "standard" GT35R turbo, which I doubt, everyone used by an EVO is a hybrid of turbines and housings. So figure out what you need first, THEN buy it.

Sean

 

thats a huge turbo. planning on drag racing and highway runs huh?

the sti guys are using that turbo in theirkits. and the gt30's for wrxs. remember were still 2.0L.

 

The reason for these parts is for drag racing.
I know on the road it would be lazy like hell, but I dont mind. I want the speed at the strip.

okay..I should have mentioned that I was into drag racing...but also, this is my daily driver.I want to have a 10 second daily driver,full street car(if this is possible)
Could anyone recommend specs on a turbo that i should use?

 

Also I was looking at the link that Crazy4Cars posted.
someone said that with a 1.1 A/R(exhaust) you should achieve full boost by 5000rpms.If this is even remotely true, then it shouldnt be that bad since I would be using nitrous...right..?