Best Turbo? [Merged 9-9] turbocharger upgrade

[hukster00]

hi, i wona upgrade my turbo on the gsx, and there is so many choices dont know which one to buy, so i asking you pepz wich turbo is best for under 1k for street/strip setup thanks,

 

[Black94DSM]

Honestly i would go with the EVO III turbo. It really hits hard at 20 psi and just keeps pulling. Its very streetable too. Will put you in the low 12's with tuning and high 11's with really good tuning.

 

[Jeff@Slowboy]

Honestly i would go with the EVO III turbo. It really hits hard at 20 psi and just keeps pulling. Its very streetable too. Will put you in the low 12's with tuning and high 11's with really good tuning.

That is what I have on my car right now. I want to go bigger.

 

[DGajre777]

What is LOW spooling? Doesn't spool at lower RPM and spools up at higher RPM? That's the same as slow spooling.

I still like the FP Green. What exactly are you shooting for? What are you goals?

 

[Jeff@Slowboy]

What is LOW spooling? Doesn't spool at lower RPM and spools up at higher RPM? That's the same as slow spooling.

I still like the FP Green. What exactly are you shooting for? What are you goals?

I meant quick spooling. low rpm spooling, I want a turbo that will get me close to the 400hp range but still being a nice streetable setup. aand it has to have a mits flange

 

[daren_p]

You have to choose either quick sppoling or more hp, you can't usually have both. I believe the 3255e is a standard baring turbo that flows slightly more then a 50 trim & is in the same ballpark for price www.diamondstarmotorsport.com carries them. If you want a quick spooling turbo then you should look towards a ball bearing center section. This helps overcome the quick spool & big hp goals. Depending on your budget PTE makes a couple different variations based on the garett dual BB center section. For abit more you can look at some of the variations of the garrett GT center section, slowboyracing has some nic examples. Above that look at the forced performance 3052 or 3065 turbos, depending on your hp goals. These use the GT center section but have a custom turbine housing that flow much better then the mitsu designed ones but obviously cost more as you also need to add an external and custome O2 housing.

 

[Jeff@Slowboy]

How does the fp green compare to the gt3255e does anyone know??

 

[Jeff@Slowboy]

Ive been talking to slowboy and I'm thinkin about going with the SBR-G50 anyone running this or no about it. is it a good turbo?

 

[CRiXman]

I am not planning on doing any fuel mods at all in the near future. I will be running stock pump, stock injectors. However I might play with boost until about 15psi max.

What should be the best Turbo option with all this being said? Small 16G? Big 16G? Evo 16 G? FPBigT28?

With which would I see very noticable gains at around 14-15psi?

I would appreciate any feedback from people who have had first hand experience.

Opinions, are welcome but not always as good as first hand experience.

Thanks to all!

P.S I run 95 octane all the time.

 

[spoolup]

If turning the boost up at all on a upgraded turbo I highly HIGHLY recommend a few supporting mods. FP injectors tuning capabilities logger ect. With this being said. I seen a COMPLETLY stock, airbox/ exhaust, included GST here in utah that blew the T25, the dealership said it was cheaper and stuck in a FP BT28 for him for free. SWEET. and the thing was quite a bit faster. He still used the BCS to control boost and eveything.

I prefure to do things right. I had my upgraded turbo, FP, injectors, downpiep, tubular O2 housing, clutch, and a few other things sitting in my garage for a few months waiting on DSMlink and a few other things. It sucked, but I figure its better to be safer than sorry.

your experiance my differ.

 

[95Talonized]

Your not going to be able to run any of those turbos without upgradeing your fuel system, plain and simple. The only one you might be able to get away with on stock fuel is the small 16g but thats a maybe or you could run a 14b from a 1g.

Why wouldn't you want to upgrade your fuel system that makes no sence??

 

[president95]

Begin to plan on doing fuel mods before a bigger turbo. Big turbo + No fuel = WTF
You would see some gains, but still WTF

 

[95Talonized]

remember it's not about how big of a turbo you can put on your car, it's all about supporting mods then upgrade turbo then tune

 

[MadTripper]

Off-topic and I'm sorry but I just couldn't resist.

I prefure to do things right.

 

[Booster-Shot]

Hmm, stock fuel system? Sounds like you want a 14b my friend.

 

[spoolup]

Sorry I am no English Major. Point taken.

 

[Ultimatedsm]

You can run a T-28 at stock boost levels no problem. You will gain about 25HP extra at the same boost level due to the extra CFM's the turbo is flowing. If you run any higher then stock boost levels your asking for it. At least drop in a Walbro 190LPH fuel pump or rewire the stocker for now.

 

[1993eclipseGS]

If you just threw on a small 16g you would feel a difference...

 

[JusMX141]

If you check out the quarter mile times on this site, you'll see that small 16G's have some impressive numbers for all the bigger they are. A T28 would be a nice choice for you considering it's basically a drop-in replacement for your T25. However, if you're using a bigger turbo that flows more air while keeping your stock fuel system, your boost will have to be set very low to not overrun the stock injectors and pump. The bigger the turbo, the more CFM's it will flow, and the lower your boost will have to be.

Keep in mind if you're still running the stock boost control solenoid this shouldn't be an issue. Those things have a way of keeping the boost safely in the single digits.

 

[kenamond]

Maybe I've read enough of Corky Bell's "Maximum Boost" with a couple of mechanical engineering degrees to speculate intelligently on this - or maybe I'm completely full of poopoo, but if someone does their homework, I think that they could do a turbo selection exercise based on this stock fuel system criterion. You can still go with a good FMIC/sprayer setup to get as cool of an air charge as possible, external wastegate, 6" turboback , ram air intake, etc., but you're ultimately limited by fuel cut and knock. If you pick an FMIC/sprayer setup that has proven itself, keep that fixed and work with that information fixed, you can then go back to maps for different compressors to figure out which gives you an air charge closest to fuel cut without getting knock-high temperatures (factoring in your FMIC/sprayer). Then you get to pick your turbine - but I don't know nearly enough about matching this to your compressor (must read more of that book!).

Seems like it'd be a great exercise for a sub-guru. A thread describing this process would probably be a pretty valuable resource.

Flames are welcome as long as they teach me something useful about this turbo selection exercise in the process.

 

[CRiXman]

You can run a T-28 at stock boost levels no problem. You will gain about 25HP extra at the same boost level due to the extra CFM's the turbo is flowing. If you run any higher then stock boost levels your asking for it. At least drop in a Walbro 190LPH fuel pump or rewire the stocker for now.

OK this is interesting! Thank you Ultimatedsm and a few others..

Actually by the time I will put the turbo on, I will have also installed an A'PEXi WS2 Catback, in addition the the current mods I have (profile)

The reason I don't want to get into fuel upgrades are plenty.
1) Very very strict raod regulations here in Switzerland (fancy paying $5000 fines or prison)
2) Car technical controls every 2 years
3) More fuel = more money (try paying $65 per tank fill up- yes fuel prices are astronimical due certain events around the world (hint hint))
etc..

This all being said, and from the few useful feedback from some of you, The Evo16G and Big 16G are out of question.

However I will see gains with small 16G or FPbigt28, at stock boost?

 

[CRiXman]

If turning the boost up at all on a upgraded turbo I highly HIGHLY recommend a few supporting mods. FP injectors tuning capabilities logger ect. With this being said. I seen a COMPLETLY stock, airbox/ exhaust, included GST here in utah that blew the T25, the dealership said it was cheaper and stuck in a FP BT28 for him for free. SWEET. and the thing was quite a bit faster. He still used the BCS to control boost and eveything.

I prefure to do things right. I had my upgraded turbo, FP, injectors, downpiep, tubular O2 housing, clutch, and a few other things sitting in my garage for a few months waiting on DSMlink and a few other things. It sucked, but I figure its better to be safer than sorry.

your experiance my differ.

Thanks for your feedback!

As you said when U first put your FPbigt28 and kept the boost at stock levels, how does it feel? Better than the t25?


C.

 

[spoolup]

I already had PLENTY of upgrades before or when puttin git on so it was not an apples to apples test, more of a apple to little ape. But still, yeah the potential is there. The guy who got hooked up from the dealership felt a decent increase in power from just that addition.

 

[spoolup]

When they do the tech controls in EU, do they tear the car apart or just look for things that should not belong? You could easily puts some 550s in and a walbro 190 (not that loud and does not require a AFPR) then use DSM link to control it. That with a BT28 would appear COMPLETELY stock to even a trained eyed person the only one who will know is if they have the exact same car next to them when looking at ceritan things.

Your gas milage will only really increase if you get on it a lot. Thats what makes turbo so nice, you can actually not build any boost ever and keep decent gas milage. But I feel bad, doing the math it appears fuel it $6.50 a or so. Sorry bro.

 

[TSIMonsteR]

If I were you, I'd rewire the stock fuel pump and go with the T28 for simplicity and the stock appearance. You could also do the 2g total solution from somewhere (comes with MHI Evo316g and all that is necessary to install it. At stock boost levels you'll be fine with the Evo16g. Shoot, with my big16g I ran 15psi with no knock on the stock fuel. If you rewire the fuel pump, you'll be good to go up til about 16psi.

A quick question though... A walbro 190 doesn't cost much, and it's not hard to install... why not just get one to be safe? It's an in-tank pump and doesn't look that much different then the stocker?!?!

 

[CRiXman]

If I were you, I'd rewire the stock fuel pump and go with the T28 for simplicity and the stock appearance. You could also do the 2g total solution from somewhere (comes with MHI Evo316g and all that is necessary to install it. At stock boost levels you'll be fine with the Evo16g. Shoot, with my big16g I ran 15psi with no knock on the stock fuel. If you rewire the fuel pump, you'll be good to go up til about 16psi.

A quick question though... A walbro 190 doesn't cost much, and it's not hard to install... why not just get one to be safe? It's an in-tank pump and doesn't look that much different then the stocker?!?!

Actually during the Tech controls, they do heavy investigation. But I will be surprised if they see the difference of t25 --> t28. Injectors also I don't think so wither, fuel pump definately not.. BUT.. I beleive the emissions will definately change. And since they have they records of my car since the last control (2004) and if they see a difference in the next.. i might get into some shite..

Also, my knowledge on fuelupgrades are not up to mark yet...

But remeber, I just wanted to know which turbo for stock fuel system without abusing with the boost. If I have understood correctly any turbo such as evo16g, big16g or FPbigt28, will do, as long as the boost remains low? And at the same time I will see gains?

Now you guys got me hesisitating between turbos again! urgh.. help!!!!!