Can 2.3L + HX-35 = 500whp?

[TSi_with_psi]

I have a 2.3L stroker motor that I am building, and i'm going to put an HX-35 with the bullseye housing on it. I will have FP3x cams and all supporting mods on the engine. My question is this: Will the HX-35 be able to make 500whp on a 2.3l stroker motor?? I'm looking for horsepower and torque numbers from people running the HX-35 on a stroker motor, or any similiar setups. Thanks.

 

[tsimiz]

are you asking 500whp on pump or all out with race gas?

 

[thiazole]

Yes, but there are probably better turbos out there for you goals.

 

[Thor06]

I wouldnt put anything less than a 35R on a motor like that.

 

[blownturbotsi]

I know a few 2.3 + 3065's that have barely any lag and GREAT torque. I don't see why a 3065 wouldn't be able to get a bit more than 500whp at least.

 

[GORBS88]

IF you are running a 2.3 then there is no reason to be running the small BEP housing. Now if you were to put on the HOLSET 14cm or 16cm housing then there is a better chance on hitting your goals but it probably won't happen in that small housing.

 

[DSMReviver]

I know a few 2.3 + 3065's that have barely any lag and GREAT torque. I don't see why a 3065 wouldn't be able to get a bit more than 500whp at least.

What kind of turbo are we talking about here, just curious.

 

[DSMsOwnYourV8]

What kind of turbo are we talking about here, just curious.

It's a Forced Performance turbo. The Fp 3065 is a beastly turbo but they are pretty expensive.

 

[TSi_with_psi]

Thanks for the imput guys. the reason i am going with an HX-35 is because i was able to pick one up really cheap. I have heard quite a few people that say the BEP housing on the HX-35 will be to small for a fully built 2.3L stroker motor. Is there anyone who has actually tried the hx35 or hx40 with the 2.3L motor? if so it would be great to get some first hand knoledge from you.

are you asking 500whp on pump or all out with race gas?

I am building a street car, so i am going to be running on pump gas. I want as much power as i can get on pump gas, without a huge amount of turbo lag.

 

[blownturbotsi]

If you haven't built the 2.3 yet, I'd say look into the BC 2.6 and get a bigger turbo and have fun. A t67 or something of the sort would give you plenty of power and you shouldn't have too many problems spooling it with a good tune.

 

[TSi_with_psi]

I already have the 2.3L in my car. I have the wiseco and eagle combo. Right now my head is stock, and entire intake system is stock except i have a 16G turbo. I already have a ETS Pro Race 3.5" core FMIC that will go on the car soon, and i will be putting 2.5in. IC piping on the car as well. The biggest problem i have right now is that i cant control my boost! I have a MBC, but the wastegate on a 16G is far to small to limit my boost since i am running a straight 3" exhaust, and 3" O2 housing with external dump. I can go full throttle above 3500 rpms with out the boost spiking. it is really frusturating to me cause i have a nice 2.3L motor, but i cant run it hard at all!! I have a Tial 38mm external wastegate that will go on the car with the bigger turbo, and hopefully that will keep things under control.

 

[mikelv]

I am running a similiar setup that you are referring to w/ a FP3065.

You can make great numbers with this turbo (FP 3065) well beyond 500hp, however, pump gas isn't going to get you very far. The lower octane fuel ingnites and causes pre- detonation at a much lower tempature, so if your looking to push for 500+ hp, (say on the dyno) your going to have to use a higher octane fuel of sorts. (race gas)

The best I could get with that setup was 407awhp @ 19psi on pump. (93 octane) Anymore and she started knocking big time. We could have gotten about 430-435awhp out of her @ 21-22psi, but I didn't want to run my car everywhere like that. It'd last about a week!

Correct me if I'm wrong about this guys, basically to make these big numbers, your gonna be on a higher octane. Pump just don't cut it.

There are a lot of great VFAQ's and threads out there regarding fuel selection and hp #'s

 

[spinninfwdlaser]

With good supporting mods, yes. But as everyone has said it can be easier with a different turbo. A 2.3 would greatly spool up a ball bearing turbo. Also, do not forget proper driveline support mods.
May I ask, what are your support mods, IE tuning devices, fuel injectors, pump....
Thanks

 

[TSi_with_psi]

I'm in the middle of building the car, so most of the supporting mods are not yet installed. here is a list of the supporting mods i have.(some installed, some not yet)

walbro 255hp, -6an SS lines all around, earls fuel filter, AEM fuel rail, Aeromotive FPR+gauge, stock return line. (installed)
PTE 880cc injectors (not yet installed)
AEM EMS, AEM Wideband O2, (not yet installed)

 

[spinninfwdlaser]

Not bad for support mods. Sounds like the setup should go well if you have it tuned by a pro.

 

[JayRolla]

I already have the 2.3L in my car. I have the wiseco and eagle combo. Right now my head is stock, and entire intake system is stock except i have a 16G turbo. I already have a ETS Pro Race 3.5" core FMIC that will go on the car soon, and i will be putting 2.5in. IC piping on the car as well. The biggest problem i have right now is that i cant control my boost! I have a MBC, but the wastegate on a 16G is far to small to limit my boost since i am running a straight 3" exhaust, and 3" O2 housing with external dump. I can go full throttle above 3500 rpms with out the boost spiking. it is really frusturating to me cause i have a nice 2.3L motor, but i cant run it hard at all!! I have a Tial 38mm external wastegate that will go on the car with the bigger turbo, and hopefully that will keep things under control.

Are you sure its spiking? Or creeping? You should have no issue with that exhaust causing spiking. The o2 and exhaust can cause creep if you dont have the turbo ported correctly, which Im guessing is your issue. Port it correctly and you should hold boost fine.

Now for your turbo upgrade I would go big or go home. You can get a t3 t67 turbo for around $900-$1100 depending on how well you shop and that will give you all the airflow you would ever need.

 

[snox135]

I'm in the middle of building the car, so most of the supporting mods are not yet installed. here is a list of the supporting mods i have.(some installed, some not yet)

walbro 255hp, -6an SS lines all around, earls fuel filter, AEM fuel rail, Aeromotive FPR+gauge, stock return line. (installed)
PTE 880cc injectors (not yet installed)
AEM EMS, AEM Wideband O2, (not yet installed)

I really hope you have more mods than this installed if you are running a 2.3

 

[TSi_with_psi]

Are you sure its spiking? Or creeping? You should have no issue with that exhaust causing spiking. The o2 and exhaust can cause creep if you dont have the turbo ported correctly, which Im guessing is your issue. Port it correctly and you should hold boost fine.

Thanks for correcting me, and your correct to assume that i am actually experiencing boost creep, not boost spikes. I mixed up my terminology there.

I really hope you have more mods than this installed if you are running a 2.3

Yeah, i'm pushing my limits right now. I'm running the 2.3L stroker with stock injectors, a 16G turbo, stock intake piping+Intercooler, Stock head, and no tuning at all! , now hows that for a sucky setup!! I am running about 12psi of boost, and i get boost creep after 3500 rpm at WOT. If i'm not paying attention, i will quickly hit fuel cut at around 17-20psi. Its pretty scary when your not expecting it. I will be changing my wastegate setup as soon as i swap turbos, but i don't want to spend time porting a turbo that will only be on the car for a few more weeks.

So what suggestions can i get as far as which turbo i should run?? I will have a fully built 2.3l with FP3X cams, and ALL supporting mods when i am done. Good Pump Gas performance is a MUST, as the car is a Daily Driver, and I would like to keep turbo lag under control since its a street car.

 

[thiazole]

You don't even have the fuel mods to handle the turbo you have and you already want a bigger turbo? Priorities, man!!! If you aren't careful, you'll be shopping for a new engine instead of a new turbo.

 

[Thor06]

There is truth in that, but it never hurts to start researching weeks or even months before you buy. I was on DSM forums and shop sites for three full years learning about them any any upgrade worth doing before I finally bought one.

 

[TSi_with_psi]

You don't even have the fuel mods to handle the turbo you have and you already want a bigger turbo?

, i understand what your saying. Although i am currently running stock injectors, I have a set of PTE880cc injectors that i will put on the car as soon as i install the AEM EMS. I'm not sure if you saw what i had written in one of my earlier posts in this thread, but i do have an upgraded fuel system. Here is what i have:

walbro 255hp, -6an SS lines all around, earls fuel filter, AEM fuel rail, Aeromotive FPR+gauge, stock return line. (installed)
PTE 880cc injectors (not yet installed)

AEM EMS, AEM Wideband O2, (not yet installed)

From what i have read, this fuel system should most likely be able to meet my goals.

it never hurts to start researching weeks or even months before you buy

That is exactly what i am doing. I will not buy any part for my car that is not able to reach my goal, because i don't want to end up buying parts twice.

 

[spinninfwdlaser]

The fuel support mods do not seem too bad to me..... The motor support mods, such as cams, bottom end and etc are going to be important too.
A guy may want to switch from the 255 (To be honest, I do not really know its limits) to maybe a Supra TT pump.

 

[TSi_with_psi]

Im pretty sure that the walbro 255hp will out flow the supra TT pump. The walbro should be able to make well over 500hp as far as i know.

As far as supporting mods go, my engine will have everything on it upgraded, so there is no need to worry about that sort of thing. Trust me, when i actually get around to putting the big turbo on the engine, my engine will be ready to handle it in every way. I'm basicly just doing a little reasearch right now because im not exactly sure what turbo i want to use. I already have a Holset HX-35, but from what im hearing it might not be big enough to make the type of power i want. So im looking for first hand experience from people with big turbos to help me decide which one i should use. I want to make sure that i can get the full potential out of my engine once im done building it.

So, should i keep the HX-35 with the stock turbine housing? Should i put a Bullseye housing one it? or should i scrap the HX-35 all together, and get an entirely different turbo??

 

[1gDSM4g63]

Thanks for correcting me, and your correct to assume that i am actually experiencing boost creep, not boost spikes. I mixed up my terminology there.




Yeah, i'm pushing my limits right now. I'm running the 2.3L stroker with stock injectors, a 16G turbo, stock intake piping+Intercooler, Stock head, and no tuning at all! , now hows that for a sucky setup!! I am running about 12psi of boost, and i get boost creep after 3500 rpm at WOT. If i'm not paying attention, i will quickly hit fuel cut at around 17-20psi. Its pretty scary when your not expecting it. I will be changing my wastegate setup as soon as i swap turbos, but i don't want to spend time porting a turbo that will only be on the car for a few more weeks.

So what suggestions can i get as far as which turbo i should run?? I will have a fully built 2.3l with FP3X cams, and ALL supporting mods when i am done. Good Pump Gas performance is a MUST, as the car is a Daily Driver, and I would like to keep turbo lag under control since its a street car.

It is not just about getting a bigger turbo to get more power. Your car needs a lot of work before you go for the big turbo, i.e. upgrading fuel system, fmic, rebuilt transmission, safc or dsmlink, etc...

 

[blownturbotsi]

I would just get a big turbo and live with the lag. The FP3x cams aren't exactly mid range cams at all, so you're already setting yourself up for top end power. Just get a big turbo that'll satisfy your power needs up top. GT37/t67 should be a good turbo because you can always get more power with a little race gas and a few turns on the MBC. What are you doing about your intake manifold? Stock? I'd do a JMFab race or drag, leaning more towards race. Drag is for all out top end, race will give you a bit better spool and power in the mid-range rpms.