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,

 

[siueclipse]

you really need to search for this one, but i will entertain this thread for a second since nobody else has.


www.hahnracecraft.com

Nice turbo kits, some parts need to be changed out, but overall a nice kit that will perform and is easy for beginners because the instructions are very drawn out and they have tech support available for you.

www.overboost.com

They sell the STAR kits. Instructions radically need to be reworked. Again, a lot of the parts need to be changed out. No tech support.

I personally would go for the HAHN kit even though it costs more simply because its an actual company that is designing a kit for your car. The STAR kit used to be built by a company for our car, but now.. it seems that some distributor is putting parts together and isn't furthering development on it.

 

[SoloBaricCLipse]

siueclipse you said that some parts needed to be changed out i am curious as to what ones since i am also looking into buying a new turbo kit as soon as i get some $$$.

 

[GotSome-Turbo]

truth be told the,to James the hahn kit is the like a bible to a christian it's all he believes in, and doesn't like star(NO I'm not bashing you james or flaming), the star kit along with the hahn both have their drawbacks. I just ordered the star because of the price and the fact the turbo is more capable of producing higher HP gains. Of course at some point someone will(as they always do) gripe about turbo lag with the T3/T4, but look at it this way with wheelspin being a problem with FWD cars some lag can actually be a good thing. Anyways I'm getting ahead of myself so I'll just say this do some research. they both have benefits Hahn's being tech support and star's everything else :laugh: j/k - don't flame 4 that I had to say it
jason

 

[siueclipse]

I dont dislike the star kit. I just prefer to have a company backing a product. I prefer to spend my dollars with a company that is continuing developement of turbo systems that are designed for our car.

Also.. you mention that the star kit's turbo will product more power... honestly.. how many people have high whp 420a's? Not many to begin with. Now when you compare star kits to hahn kits of people with high whp, youll find that there are equal amount of people with either kit. I think the point of a higher possible whp car with the star kit is a muet point.

With both kits, the first thing to go is the fuel pressure regulator. HRC uses the cartech (dubbed craptech by many). Its just a piece of junk. HRC is supposidly reworking it in their new kits, but I haven't heard anyone say its good. The star kit comes with an FMU which utilizes your stock fuel pressure regulator. Its better to just get the SFMU and be done with it and not use your stock shit.

And yes, there is more lag with the t3/t4 turbo and it is less streetable than the hrc turbos. If I were to build an all out drag eclipse, then maybe i would run with the star kit, but i doubt it due to the fact of my business principles already mentioned.

 

[SnoopySLR]

I went with the STAR kit because I didn't want to replace all stuff HAHN gives you.

OEM BOV (OEM 3000GT vs HKS Standard)
Small downpipe (2 1/4" vs. 2 3/4")
Hahn has internal WG, Star has External WG (not a big deal)
I believe Hahn has the Cartech FMU, Star comes with a 12:1 Vortech FMU (Cartech kinda sucks from what I hear)

All in all, they are both AWESOME kits. Just depends on what you want.

I attached a very good write up I found a long time ago on this subject.

 

[scorplon2004]

http://www.turbo-kits.com/eclipse_turbo_kits.html

 

[RandomHero]

i got a question for you 420a turbo guys, what kind of injectors did you use? can you use 4g63 injectors or wont that work

 

[lawdaman]

Dont have a turbo on my 420A yet, but I'm fairly certain the 4G63 injectors will not work with our cars... I dont think anything off of a 4G63 will work with a 420A. Except the turbo, but hell you can make a Tercel/ Paseo run off of a T25 if you can get a manifold fabricated... Thats if your into that kinda thing...

As for STAR vs HAHN... I'm researching also. It does seem the STAR would help you produce more HP but it's spotty directions and lack of tech support make it a bit shady. The Hahn uses a Mitsu 16G or higher turbo (depending on what you want) so finding support after installing the kit isnt a big deal, but they use a lot of questionable parts that you'll end up replacing down the line. BUT a big plus is a few companys are backing Hahn and providing upgrade parts like 3" downpipes (howellautomotive.com), plus the Hahn company itself is an entity you can contact whereas STAR is little more than a name. STAR's cheaper and probably more capable in terms of producing power but if something goes wrong your on your own pretty much. If your looking for a superior product I'd go with Hahn even though they are a bit pricey, but atleast you wont be left out in the cold.

PS It might also be just as good to find a reputable performance shop thats experienced with Turbo Charging NT cars and let them design a kit for. It can come out cheaper and atleast you wont have to worry about shipping or not having someone to go to if things hit the fan.

 

[RandomHero]

ok i think they do fit but something to do with the ohms, how the 4g63s have more ohms than the 420a injectors it has kill your ecu, i just did some quick research and hahn makes accel 625cc injectors that arnt cheap, thats why i wondered if 4g63 injectors would work because i can get 450s $40

 

[Kirby]

I dont dislike the star kit. I just prefer to have a company backing a product. I prefer to spend my dollars with a company that is continuing developement of turbo systems that are designed for our car.

Also.. you mention that the star kit's turbo will product more power... honestly.. how many people have high whp 420a's? Not many to begin with. Now when you compare star kits to hahn kits of people with high whp, youll find that there are equal amount of people with either kit. I think the point of a higher possible whp car with the star kit is a muet point.

With both kits, the first thing to go is the fuel pressure regulator. HRC uses the cartech (dubbed craptech by many). Its just a piece of junk. HRC is supposidly reworking it in their new kits, but I haven't heard anyone say its good. The star kit comes with an FMU which utilizes your stock fuel pressure regulator. Its better to just get the SFMU and be done with it and not use your stock shit.

And yes, there is more lag with the t3/t4 turbo and it is less streetable than the hrc turbos. If I were to build an all out drag eclipse, then maybe i would run with the star kit, but i doubt it due to the fact of my business principles already mentioned.

Come on james I think you are leaning just a little bit here don't you?? I love Hahn and have talked to bill and others etc... so they know I have love for them, but their kit is not for everyone. As for your comment about High HP, that's just silly. Just because there are not a high number of High HP cars does not mean that the person we are advising will not be the next person to make that list... And if you compare the the money spent by the people who went Hahn and the people who went star, the star will always have a lower total. So basically of the higher HP cars the people who went Hahn spent more cause they paid more in the first please and had to replace 90% of the stuff they had. EX: James how much of your stage 2 kit is still on your car...???? Prolly like 3 items, Mani, Oil feed line, and dump tube... I still have everything from my kit except the FPR.... So you prolly spent 2 times as much as me. Instead of re-buying the stuff I paid for in the kit anyway I have been able to spend the money on upgraded axles, clutch crane ignition and a quaife LSD... etc, etc, etc... Secondly your point about the star FPR, there is nothing wrong with using this FPR. It is 6 billion times better than HRC's solution. And why replace it with a SFMU if you are going to run stock kit levels. Why buy more than you need? Unless you know you will be turning up the boost right away (i.e. you already built your engine) then there is no point to replace it. The t304e turbo is very streetable and is not that laggy. I got the BB option on my turbo and I build boost pretty quickly. When you are comparing a 16g to a bigger turbo it will be a little slower to boost, but if you do it right the diff is not that great... As for your business principals, it is great to have tech support and offers staged upgrades, but pretty much everyone but you has forged their own way after buying the Hahn kit. Very few people end up following the staged upgrade path anyway, Quite frankly it amazes me that you keep trying to make high HP a package deal with your car.... They are both quality kits and if you were not planning on making a monster then I would say go Hahn. If you want a nice zippy car for around town and don't know much about what your doing then that is the route for you. Or if you want to make serious HP and don't have a clue about what your doing then go Hahn. If you want a cheaper tech support your self solution that will be able to push serious power out of the box without upgrading half your kit then go star. Everyone has a choice to make and that turbo comp document up there is a great resource to ensure you make the proper choice for you...

 

[pr0]

SnoopSLR, I looked at that comparison, the HRC kit doesn't work with Automatics? WTF. Are you sure? The stage 1 piping goes straight to the throttle body...

I'm asking this because im expecting my Hahn Stage 1 on Monday and I have an auto.

 

[jimmy169]

The star kit is simply the better choice...the hahn kit has great support but the bottom line is with the star kit u get a bigger turbo, a fmic instead of a smic, and the cost is almost the same but you save about a 100 or 2 going with the Star Stage II kit. It's simply the superior kit. Dayum I'ma get flamed for this

 

[SnoopySLR]

I didn't write that comparisson. I haven't read it in a long time. Talk to HAHN to see if the kits will work with autos.

 

[redfieldz]

Looking for the best turbo.

I want to know what the best.

 

[moliver]

honestly, unless you want to spend around $6k in parts, a bigger turbo wont help you much.

Read the Tech Guide and that will get you to the best HP for your dollar

 

[moliver]

but if you want the best.

Probally a Full Garret Setup.

 

[RedGsxEclipse]

ported T25 is insane.

 

[clownface]

ported T25 is insane.

ef yeah it is

best turbo...i dunno if there is such a thing...
should give some of your goals then we can help give you the best turbo for you goals

 

[redfieldz]

my car is all ready in 13.8 in 1/4 mile.

I have:

JDM 4G63T (All New Internals)
550cc Injectors
Upper Pipes Intercooler Greddy kit w/hks blow off
2.75 Greddy Exaust Kit
Greddy Profe Spec 2 ( low 15, high 18)
Apexi S-AFC
14B Turbo port w/ Stock wastegate
1G Exaust Manifold port

Dyno Tested
308 hp
275 torc

I want to upgrade the Turbo

 

[GSX4LIFE]

Put a Garrett 50trim on it.

 

[1993eclipseGS]

Don't forget to buy an exhaust first.

I don't believe there is one set turbo that is claimed the best turbo. There are many different factors that take place. There are 14b's going ALOT faster then turbos that are alot bigger.

 

[definitiveno]

gt30r or gt35r

 

[92awddsm]

You dont have enough engine, exhaust, injectors, fuel pump, exhaust manifold, or drivetrain for the best turbo. Remeber, baby steps. Your car and wallet will thank you.

Now, I would recomend an evoIII16g and a 190lph fuel pump with rewire. Once you max that out, you should have enough supporting mods to get something better.

 

[Bostedquest]

There really is no such thing as "the best turbo".
There is such a thing as the best turbo for a particular application and goal however.

What people consider being the best varies greatly, and one persons goals may not be even close to yours. So what they consider and adivse on you will find out is not what you wanted.

Remember there are turbo's that are literally 35 feet in diameter, and only create 8 PSI. Of course they are on cruise ships and the like but still... one person's ideal turbo is anothers junk.

So open and fruitless questions like this one need reviewing, or the very least goals before it hits the forum.

 

[RedTurboEclipse]

T25