nyteryder

iTrader: (4)

Hey guys,

I am about ready to purchase a single turbo kit and had the GT4094r as the one I was going to get. I called up RX7 store and he told me that the 4094 is too big for my horsepower goal. I was looking to make a solid 450hp @ 15psi, but my overall goal is 500-550hp. He told me about the t04z but based on average numbers on the forum its not a solid 450 @ 15psi you would have to run at least 20psi?? Now, would the GT4094r truly be too big? It is really that laggy that it won't be fun on the street?? I have a pineapple racing medium street port and was thinking of a .95a/r for the GT4094r housing. I will be running pump gas and will have water injection and all that stuff. Any help would be appreciated! P.S. I live in Colorado where the air is a lot thinner here if that makes a difference. Thanks

sk8world

iTrader: (5)

get the 4094r. You will be fine. .95 is also ok.

rx72c

iTrader: (8)

Solid 450 at 15 psi it get a Gtx4294r

Turblown

iTrader: (12)

I would go with the GT over the To4Z, higher nickel content turbine housing, and cheaper to replace chra if you blow it. Performance should be similar between the two, maybe a tick slower on the GT as its a big shaft turbo( more durable however) If price isn't an issue then definitely GT. We have the GTX4202/4294R in stock too...

nyteryder

iTrader: (4)

Thanks for the posts guys. But the gtx4202/4294r is out of the question way too much money. Would like to hear more from guys that do have the 4094r in their setups and their experiences.

rx72c

iTrader: (8)

Look at your post and your power goals the gt4094r will not reach that power at that boost

sk8world

iTrader: (5)

I agree, if you want 500-550 (@ 15psi) you need to go LARGER! Unless you mean you want 450 @15psi but will turn the boost up for 550 then it will be fine. I run this turbo so I am not just guessing.

nyteryder

iTrader: (4)

Yes you are correct sk8world. I was looking at a minimum of 450 @ 15psi. I will turn up the boost to reach 500-550. Thanks for the help. I placed an order for a gt4094r this morning! Thanks everyone

rx72c

iTrader: (8)

Goodluck I don't think it will do it i hope it does for your own sake

sk8world

iTrader: (5)

Honestly I never made a full pull on the dyno below 18-20psi. As we were having such bad boost creap. I will go back and get a chart to post. I was thinking it made around 450 at gate psi (15) but started to creep bad. But I do know 550 isnt an issue!


Dyno video: http://www.youtube.com/watch?v=xLftxux7FIE

13B-RX3

iTrader: (2)

Erection!

nyteryder

iTrader: (4)

That's fine, I got the biggest turbo I could afford. I just didn't want to have to turn a turbo up to 30psi to get over 500hp. Thanks everyone.

rx72c

iTrader: (8)

Hey mate not trying to be negative over 500 up is achievable on 22-23psi easily just don't want you to get the wrong idea don't forget a good exhaust manifold means everything use a **** one and you won't make any power at all

D4rw1n

iTrader: (2)

do you have any numbers yet from your upgrade?

nyteryder

iTrader: (4)

No RX7store is out of all housings for the 4094r. Been waiting a few months for it lol. I'm going to get a refund and go with either a 7168 or 7175 billet precision ball bearing instead.....

sk8world

iTrader: (5)

Check with ATP turbo if you still want the 4094r or Sean with aspec.

manny6d9

iTrader: (14)

Wao I have no idea why people are saying that the turbo will not make the HP goals you have. I have a GT4088R and made an easy 447 @ 15. I didnt tune past 15 I didnt get the watermeth in time for the tune. Tuner Said that we will go up by 20hp per pound. All im saying is if he has a good setup and the pineapple ports are good he should be fine. And ATP is a great Garret distributer.

Jason

iTrader: (5)

I get the 4094 thru ATP as do most companies and they are out of them

allrotor93

iTrader: (126)

You can't beat the rx7store price for the 4094 kits

Cosmo_TT

iTrader: (11)

kit maybe but i have yet to see anyone selling the turbo for 1600-1650 like some places

nyteryder

iTrader: (4)

SO shifting gears from gt4094 to 6768 precision billet bb.... I have two options for a divided housing an .81 or 1.00. This car will be for street with highway pulls. If I had to choose between faster spool or top end I would choose faster spool. The thing that is confusing me is that I am 4000+ in elevation, so if at sea level I would choose the .81 but since Im higher in elevation should I go bigger housing??? Thanks guys

smg944

iTrader: (34)

i wouldnt get the .81 if it were me. you will hold back that turbo in the end. if you want the best boost responce the 6765 with a 1.00 is very good. but for overall power the 6768 in a 1.00 or the 4094r in a .95 or higher. all of these turbos will hit 440-450whp at 15 psi. its when you get past 25psi where the 6768 and 4094 will walk away from the 6765.

rotorican85

iTrader: (9)

I just ordered a 4094r BB locally for under $1500. Looking forward to see what this can do with my setup. This thread and a few others here helped a lot!!

Cosmo_TT

iTrader: (11)

update yet?

rx72c

iTrader: (8)

i guess comparing our dyno numbers with yours is not really proper.