Is This Turbo Any Good For The 3.4L DOHC??

[grandprixgtp_91]

Hi, im finally gonna start my project to boost my 3.4L DOHC, now im looking at some turbos and I finally found one I think I want, but since I dont know much about turbos I want you guys professional opinon. Heres what im looking at :

- Turbonetics 62-1 Turbocharger
- Dry Center
- .96 A/R On Center
- T4 Turbine
- 360 Degree thrust bearing
- 4.00" Inlet
- 2.50" Outlet
- VSR Balanced
- Supports 60LBS/Min Or 600 HP
- 3.5L - 7.5L Engine range
- Perfect for most 8 cylinders

so thats what im looking at, I dont really know what alot of the specs mean, but I know that the 3.4L DOHC needs alot more air flow than a regular v-6 which is why im looking at this turbo. do you guys think it will work good? please let me know I plan on buying it in the next day so a fast response would be awesome! thanks

Jake

[MidnightriderZ24]

.96 on the exhaust will be a little bit laggy, but that thing will make some power on a dohc FOR SURE!

[grandprixgtp_91]

Ok, I bought it, hopefully it will be good , thanks for the response, anyone else wants to cut in and give there input please do, i want as much responses as possible so i know what to do.

Thanks

Jake

[34blazer]

maybe you should look into getting a smaller turbine housing, like .82 a/r. this will help keep spool up a little lower in the rpm range

[grandprixgtp_91]

what do you guys thinks this thing will spool up at ? i do have a 5 speed so i dont really want it to spool at really low rpms because it already spins the tires like crazy on a launch so im probably gonna have to get some big drag radials for racing.

Jake

[grandprixgtp_91]

Ok i contacted the company that i got the turbo from, they havent shipped it yet and they have .81 a/r and .68 a/r so i told them to get me a .81 so hopefully that should help.

Jake

[MidnightriderZ24]

either way when it does spool it will come in hard. thats a great choice of a turbo. i had a .82 t70 and it spooled around 3500 and it came in HARD. that compressor flows plenty for the dohc.

[timg]

That's definitely a big turbo for the DOHC, but it should work great (especially if you're shooting for over 400 whp).

tim

[grandprixgtp_91]

Ok, i got the turbo the other day, finally came in, and they sent me a .68 a/r housing on it. is this to small for the dohc? thanks

Jake

[Matt Hawkins]

That A/R will be fine. That is a big turbo for your engine. What is your HP target? I am running 415 WHP with a Garrett GT3071R. It is a much smaller turbo and I am running a 0.63 ATP turbo housing.

[reven565]

HELP!!!

hey ive got a 93 lumina z34 and i was wondering does anyone have anytips on were to buy or even find turbos for a 3.4l engine.also i would like to know if there are any other upgrades to recieve a significant amout of hp. i appretiate any feedback, thanks.

[grandprixgtp_91]

i was hoping for 400 whp , but the more i think about it i doubt i will get it, i have 42 lb/hr ford racing injectors, the turbonetics 62-1 turbo, turbonetics evolution wastegate, turbonetics raptor blow off valve and a 22" long 3" wide same side intercooler.

but i dont want to run any more than 9 psi, i have been advised its not really safe to run any more than 7 psi on a stock motor, because its my daily driver.

but i think 9psi would be ok with the intercooler, but i think to achieve 400whp at 9psi is dreaming,

so i guess as long as i get about 350whp i would be happy.

Jake

[grandprixgtp_91]

ok i just contacted turbonetics with the serial number off of the turbo and they say it has a .58 a/r exhaust housing on it. so i went and looked at the stamp in the casting and to me it looks like it says 68 but i guess turbonetics would know better, i guess if you look at it the right way you could make the 6 look like a 5 but honestly if you just look at it you would swear it said 68 .

so now my question is is a .58 a/r exhaust housing to small? heres what turbonetics gave me for specs:

p/n 11006 non bb 62-1 Stage V tang undivided 58 a/r

Basically means:
Compressor: 62-1
Turbine: T3 Stage 5
Turbine housing: Tangential undivided housing .58 A/R
Center Section: Non-Ceramic Ball Bearing

i hope this housing isnt to small, this turbo already cost ALOT lol i dont want to have to go buy another housing for it.

Jake

[timg]

It should be fine. My suggestion is to try it. If you don't like it, you can always swap it out.

Tim