GT14 on a 2.3 stroker.

[Jon1971]

I'm about to put a built 2.3 stroker in my '91 gsx. Short list of my mods:
HKS 272/272
Crower springs and ret.
1mm over SS valves
Race ported and polished head
Stroker bottom end 2.3
decked block and head
1000cc injectors
2 walbro pumps
3" turbo back ss exhaust
Greddy e-manage with all the supporting hardware/software
Aeromotive FPR.
SCE new Titan o-ringed head gasket. I think I'm one of the first to run this.
SlowBoy Race FMIC
MAFT 3" blow.
ect.ect.

I have the Slowboy GT14 with the td04s housing. Should I run this turbo with the Mitsu 7cm exhaust side or get a bigger hot side? Can I get a bigger hot side for this turbo? I've tried talking to Slowboy but their customer service sucks! My goal is 550-600whp on race gas.

 

[IMMORTALSPYDER]

I've never had any bad experience w/ Slowboy CS. They're defidently the ones to talk to, so I'd say keep trying them.

On a side note,
1000cc Injectors

 

[Lunch_Box]

Have you bought the head gasket yet, if not PM me I have a brand new one for sale.

 

[liquordrunk]

I'm about to put a built 2.3 stroker in my '91 gsx. Short list of my mods:
HKS 272/272
Crower springs and ret.
1mm over SS valves
Race ported and polished head
Stroker bottom end 2.3
decked block and head
1000cc injectors
2 walbro pumps
3" turbo back ss exhaust
Greddy e-manage with all the supporting hardware/software
Aeromotive FPR.
SCE new Titan o-ringed head gasket. I think I'm one of the first to run this.
SlowBoy Race FMIC
MAFT 3" blow.
ect.ect.

I have the Slowboy GT14 with the td04s housing. Should I run this turbo with the Mitsu 7cm exhaust side or get a bigger hot side? Can I get a bigger hot side for this turbo? I've tried talking to Slowboy but their customer service sucks! My goal is 550-600whp on race gas.

Dont see the point in running a bigger hot side. The way this one is will be plenty. The 1000cc inj seem like a little much as along with dual pumps unless you making 700 plus hp. but it seems decent enuff set up.

 

[SlowboyCSE]

Hey fella's, if you need to talk turbo's call and get me - CRAGGER.

Yes we can put T3 hotsides on the GT14 if you like, but the bolt on model works just fine. We can put a .63 or .82 A/R turbine housing on there as well. I may even be able to fit a 1.06 A/R turbine housing but i'm not sure, never tried it but garrett does have a part number for one... Hrm, i'm going to have to look into that one!

If you need anything else let me know!

 

[Jon1971]

"Dont see the point in running a bigger hot side. The way this one is will be plenty. The 1000cc inj seem like a little much as along with dual pumps unless you making 700 plus hp. but it seems decent enuff set up."

I have been informed by several people that a single 255hp will only support up to 45lbs/min air flow. The turbo is rated at 65 lbs/min. I would like to take the turbo to its full potential. If I have been misinformed please let me know. I plan on running about 30-40 psi on the set up.

 

[IMMORTALSPYDER]

I have been informed by several people that a single 255hp will only support up to 45lbs/min air flow.

You were misinformed

 

[Jon1971]

I've had a dyno shop and about 3 different guys with 500+whp DSMs tell me this. When I get it to the dyno I'll check it out. I have the ability to run only one pump at a time. I’m setting up the other pump (if needed) to come on at about 25psi or so. I’ll do a run up to my goal boost level and see if the pressure drops off with just one pump.

Thanks again,
Jon

 

[IMMORTALSPYDER]

Let us know what you find out. There's 2 versions of the 255 if you didn't know, plus you could rewire it for more voltage=more fuel. Good luck and when are you dynoing it?

 

[Jon1971]

I've got them both rewired with 10ga and relays. One will be running off a pressure switch that reads boost pressure and energizes the relay to the number 2 pump at a user set boost level. Also have -6an line from tank to rail to regulator.

I’ll have it on the dyno as soon as I get it together. If that ever happens! !

There both the 255hp walbro pumps.

 

[liquordrunk]

If you are ony looking to get 550-600hp you went a little over board. But none the less its a neat trick to do dual set up fuel pumps. And with what you have set up so far. you should be able to handle a lot more than that with the inju and pumps/.
But i would have gone with a bigger turbo. like a full garret setup.
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT42/GT4294_731376_1.htm

imho

 

[Jon1971]

I'm going to see what I can get out of this turbo then more then likely go bigger. I like to see where this turbo hits bull boost at before I decide on the next one.

 

[liquordrunk]

I'm going to see what I can get out of this turbo then more then likely go bigger. I like to see where this turbo hits bull boost at before I decide on the next one.

on a gt-14 ur looking at 4grand give or take some ..

 

[Jon1971]

4k, is that with a 2.3ltr?

 

[liquordrunk]

yes.. on my 2.0 my fpred was hitt full boost of 25 psi at 4500..
but with a 2.3 and im not sure what psi your wanting ot runn but around 30 im guessing ## looking about the same 4g's-4300. My firends dave sees 30psi on a gt35R on a stock 2.0 at 43-4400