turbocharger question

im looking at upgrading my GS to a GST what i need to know is what turbo would be best? which would give me the most horsepower and how much would it give. and which is better the higher numbers or the lower numbers. for example T25 or T3 which is the better turbo???

why are people in the eclipse forum so unhelpful??? in the honda forum i would get answers 10 mins after i posted it. someone knows the answer why cant you guys just answer it to hlep me out

better off selling ur gs and buying a gs-t or gs-x...if u were gonna convert to turbo the t3 would be the way to go..the t25 is still too small for even the stock motor at the 7,000+ rpm redline

Well the thing is with the GS-T's and the GSX's i've only found that are around $20,000. I got the GS for $13,700. and the turbos are like $2,000 average which is still cheaper than buying the GS-T or GSX. so in a way its a better deal. Im most likely going with the T3 but how much horsepower does that give ya? i was reading around 300 for the stage one of it. is that on top of the 140 the GS's have or is that just a misread by me???

To convert the car to a turbo and get the kind of horsepower you want, its not only going to involve slapping on a turbo. I don't know what part of the country you are in, but you can find plenty of GST/X for $15,000 and below. Just do a search on auto trader. Hate to say it, but you probably should've saved the money you spent on the GS and bought a cheaper car until you could afford the GST/X. And if you want to get responses, go to dsmtalk.com . But do a search first and read all the FAQ's before you start asking questions.

Originally posted by 98EclipseGS
why are people in the eclipse forum so unhelpful??? in the honda forum i would get answers 10 mins after i posted it. someone knows the answer why cant you guys just answer it to hlep me out

because we take pride in great customer service in the honda forum :)

Originally posted by Jerren


because we take pride in great customer service in the honda forum :)

:rolleyes: because almost all of the members in the honda forum came from PH

what year gs-t and gs-x's were you looking at? and are you referring to canadian money?
find a first gen gs-t or gs-x... more can be done for much cheaper..they night not look as good, but fast and sronger speaks out well over looks...and one can be had for well under $4,000 u.s.

its in US money. it doesnt matter. i got the GS ill upgrade it to a GS-T later on. but i cant find any like starter turbo's actually. there all upgraded turbo kits.

Originally posted by 98EclipseGS
its in US money. it doesnt matter. i got the GS ill upgrade it to a GS-T later on. but i cant find any like starter turbo's actually. there all upgraded turbo kits.

I seen Greedy turbos for GSs:confused:

yeah i just found one on asylumms.com but its not on the greddy website for some reason and it doesnt give any info about the kit. Like what it comes with or anything. What would i need extra to have all the parts for the kit??? would i need a new exhaust piping?? and how much extra horsepower does the greddy give ya???

Listen, all those freaks telling you to buy a new car have no idea what they are talking about, for that difference in price, you could add a stage 5 turbo from http://www.hahnracecraft.com and push 475 HP...

Thats right, and oh, the RS or GS is over 400 lbs lighter than the GSX... factor that into your power to weight ratio....

power to weight to prodigious amounts of tiresmoke morelike. 400 pounds is not a big difference because u can make it hook, rather easily in fact. i'll take a 300 hp Gs-x over a 400hp gs-t or rs . and while ur smoking and torque steering all overhte place i'll be at the end of the track laughing my head off. :) AND i'll do it for cheaper too.

Whoa there man, lets sit back and look at this... Your saying that your going to buy a GSX which is about 3k to 4k more, then replace everything and do this cheaper?

That's not even the ludicris part. You would rather have a much worse power:weight... So you would rather take a honda civic down the track against an 850HP 454 w/ blower monster because the monster will just spin its tires....

Whats the matter with you?!

Here's an idea, learn how to drive to correct that problem, and while you run your low 13s, I'll smoke you with mid 11s, EVERYTIME....

See you at the track in my rearview mirror...

Listen up!

What you did is very smart. First, you saved several grand on the car itself. Second, you're enjoying low insurance rates. Third, the 420A motor is one hell of a motor - perfectly balanced, mahl valves (which is better than stainless steel), an already knife-edged crankshaft, a proven bulletproof tranny that can handle 450+ HP. You also are 400 lbs. lighter than a GSX and don't have to worry about breaking LSD's and that crappy AWD tranny. With a pair of DOT slicks and a motor mount upgrade you can eliminate wheel-hop and secure your traction. Hahn Racecraft has done extensive research in this area and I have worked closely with them over the years to find out exactly what can be done. They are the experts, got check them out at efilson's posted link.

Now, say you spent a few thousand more on a GSX. Your insurance costs more. You rip all the turbo stuff out and replace it anyway which costs you thousands more. You're also carrying more weight on the track which can translate into nearly .4 seconds added to your 1/4 mile ET. Not to mention, you have to worry about walking crankshafts and the like that have plagued the 4G63 engine for years.

Take a look at some of the worlds fastest hondas... Guess what, they're all FWD. If these guys are pushing 10's when all they're doing is burning tires, I'd like to know what the hell you're talking about Crackerman :)

Anyhow, in relation to your first post, T25 is smaller than the T3. I wouldn't waste my time with garret turbos though, mitsubishi turbos are far superior. I'd recommend a 16G Mitsu for up to 350HP or a 20G Mitsu for anything above that.

Like I said, check out HRC. They have everything you'd ever want to know on their site, and the staff is very helpful if you should need to email them questions.

-Raycer97

Thanks Raycer97 thats a lot of help. im glad someone finally gave me an answer. its about time instead of people arguing back and forth when im trying to get an answer. Thanks man

I say you should go w/ a turbocharger instead of a supercharger because it give you better horse. Even though a supercharger is quicker off the light.

the gs and gst have totally different engines, its not just a matter of adding a turbo...the gs has a chrysler made engine while gst is actually mitsubishi...as for u getting faster replies in the honda forum, thats because everyone and their mothers and THEIR dogs own a honda.

Hahn racecraft make really, really good turbo systems for cars, they do numerous tests to perfect them...they actually made the turbo for the worlds quickest eclipse rs (11.53). You might wanna check them out. http://www.turbosystem.com/auto/eclipse/eclipse.htm

picture of an eclipses engine with an added turbo (not gst or gsx)

Originally posted by efilson
Whoa there man, lets sit back and look at this... Your saying that your going to buy a GSX which is about 3k to 4k more, then replace everything and do this cheaper?

That's not even the ludicris part. You would rather have a much worse power:weight... So you would rather take a honda civic down the track against an 850HP 454 w/ blower monster because the monster will just spin its tires....

Whats the matter with you?!

Here's an idea, learn how to drive to correct that problem, and while you run your low 13s, I'll smoke you with mid 11s, EVERYTIME....

See you at the track in my rearview mirror...

i NEVER said NEW gs-x, i can get one for about a grand more tahn a gs-t, as you well know, and the subaru and cyclone/typhoon guys out there, traction is where its at, i also never said i wouldn't take a 850 hp 454 car either, i said, an awd car with 300 horsepower will definitely launch better than a 400 horse front driver. and will out run it off the line, NOT over a longer distance, and NO on a gsx eclipse u don't really need to replace hardly anything to make 300 horse power.
i wouldn't have a 454 blower car, it would be naturally aspirated. and YES i would much rather have one of those, weight transfer happens to work in the favor of rear drive cars. everyone is entitled to their opinion, i'm just sharing mine, because it is what has been proven to work...no need to come down on people,

The GSX will win. How about this, someone on here find the fastest street driven 420A. I don't have to go far to find the fastest street driven 4G63. That would be John Shepperd with a 9.89 in the 1/4. He drives it to the track. Yes, you can turbo a 420A, but by obvious evidence, it will never be as fast as the 4G63. If you are attached to your car, then I say go ahead for the turbo kit. I have a friend running the max that he can run on his 420A with the stock internals, and he is putting 234 at the wheels. I can gurantee that I have spent less and am putting a lot more hp down. If you start getting into cars running slicks, then we can go to Sean Glazer and Brent Rau. Sean is in the high 8s. Then we have Buschur who is about to break into the 7s. I personally have friends that run 11s in their GSXes and TSi AWDs, not one person across the country that I found over the internet. If you want to make the right economical decision, buy a gsx or gst. If you want to keep your car, then a turbo kit is your next best option.

:mad: :mad: :mad: :mad: :mad::mad:

I am going to have to agree with the writer above. On a heavier note, Raycer97, There is no way in HELL a 420 Motor is "Better" Than a 4G63. The 4G is a race PROVEN motor. Don't get me wrong, I really don't like bashing on anyone...but it pisses me off when a 420A guy starts talking smack. I really didn't wanna say this, but you guys are the RED HEADED STEP CHILD OF THE DSM COMMUNITY. What do you mean crappy AWD tranny?? Just because you can't produce REAL HP to the ground doesn't mean you have to hate. Like any other tranny out there, they are not meant for drag. The only reason GSX's tranny's break, is because there is no slip any where...this is only the case for those who make real HP. Your point on insurance is sooooo invalid...I pay 75 bucks a month for my heavily modded GSX! I'd like to hear talk your smack infront of any DSMer (I mean the one's with the cars that make real HP). Look at things realisticaly...Are most 4G63 owners selling their cars to get a car with the inferior 420A motor?? Nope I think no, its the other way around. I really didn't way say what I just said...but know your roll little boy. Watch what you say before the big dogs come after you:devil: Have a nice day.:) BTW...If anyone needs any assistance in Modding your GST/GSX, let me know. I'll be more than happy to help you...Oh yeah...Don't go to HRC if you want turbo selections...this "Raycer97" obviously owns a GS or an RS and has had his butt handed to him by a REAL DSM.
For turbo's it really depends what you want. You can buy the BigFpT28/28 (Looks like the t25, but performs like the Big 16G...Good for around 280 to the wheels), or if you want something bigger than that, buy a 20G (Which that dork Raycer 97 already mentioned) I suggest buying the TD06 20g with the 34mm internal Waste gate, If you want bigger than that, Buy a frank2, or if you want Better than that, Get the FP green (AWSOME...a friend of mine running this turbo layed the smack down on a C5, and a Supra BPU+). Just make sure you have all the supporting mods. Any questions, go ahead and ask :smoker2:

GSXer, you are totally right!! i couldnt agree with you more. By the way, i am looking to fix up my gst, what would u recommend on a low budget? Thanks.

Since you didn't say whether you had a 2G or a 1G, I'll tell you how to go for both of them:)


Manual Boost Controller (Dejontool.com $49)
Autometer Boost Gauge (Anywhere ~$60)
K&N Airfilter (Autozone $33)
2.5 or 3" Catback Exhaust (Machv.com Roadraceengineering.com extrememotorsports.com dsm-performance.com nopi.com ~$500)
2.5 or 3" Downpipe and Cat (same as above ~$300)
Upper intercooler pipe (Machv.com Extrememotorsports.com Dejontool.com)
255 lph Fuel Pump (autoperformanceengineering.com)
ACT Clutch (Most import sites)
Autometer Air/Fuel Ratio Gauge
Exhaust Gas Temperature gauge
Larger turbo (Big or Small 16g [check either turbochargers.com or machv.com or roadraceengineering.com] or t28 for 2G [turbochargers.com]
APEXi Super Air Flow Converter (roadraceengineering.com)
550 injectors (roadraceengineering.com)
Greddy Big Front Mount Intercooler for 2G, Indy Race Cores Front Mount intercooler for 1G (roadraceegineering.com indyracecores.com)
Injen intake for 2G or Dejon intake for 1G (dejontool.com)
***All 2Gs will need an upgraded Blow off Valve (technically compressor bypass valve) I would recommend the GReddy Type-S. Also available is the HKS SSQV, Blitz Super Sound, and for the economically minded, the factory 1G Compressor Bypass Valve.

I hope this helps, and I think I got everything.

Wow, the person above has you covered...I wouldn't go to MACHV. Their turbo selection is poor. Stick with roadrace. Here are some other great sights: www.teamrip.com , www.ffwdconnection.com , www.Forcedperformance.com. In my opinion these are the best sights. As far as Boost and Egt gauges go, GReddy makes the best in the market. The EGT already has the area you want to avoid marked in red, the same goes with their boost gauges (Although it only goes to the 2. bar) VDO, and other companies out there make some pretty good ones. But buy the GReddy EGT 52mm gauge..its the most functional in my opinion.:flash:

BTW...consider buying the "X" clutch from RRE, from what I have been hearing around the way...it out performs the ACT 2600. "X" clutch has been measured at 2500lbs with just as good of performance.

You guys will probably begin to hear about Exedy Race Clutches from Japan. I have one, and I will not recommend it. It is already chattering after 1000 miles and I don't drive hard very often.

In my opinion you should have shoped around before you bought your GS for 13,700. I know you could have gotten a GSX for that much. If you could sell it for that much, i would suggest looking at the autotrader or try looking on dsmtrader.com. Starting out with a car that is suppose to be turbo is always easier and better than starting with one that isnt (fuel delivery, timing curves, computer, cam profile, flow characteristics just to name a few things). Plus, for every .1 you are quicker on your 60ft times it equals .2 on your et, so the advantage of awd makes up for the extra weight. My suggestion is to sell it and get a different one.

ECTurboGSX

What would your best recommendation for a turbo for my GS? And what other mods would you recommend me getting to get it a lot quicker???

You're going to have to use whatever the companies offer you. I think Hahn offers mitsu turbos with 10 cm exhaust housings (f---ing huge) which translates to longer turbo lag, but higher top end. The hahn ones will be s20g, maybe a s18g, and a s16g. The best turbo in my opinion is the t3/t4 combo. That is a very broad group, as the trims are endless. One of my very good friends is doing the NT to turbo conversion, and even he said he would have bought a GSX or GST if he did it again, and I agree with him. A lot of people have turboed 420As, but not a lot have built there engines and done it right, which is why I would stay away. The knowledge on building 4G63s is endless. I've spent under 3 grand and I ran a 13.5 my first day. I am sure I could hit low 13s with more practice. I would also say not to look for advice here. Check out the 2GNT.com forums and dsmtalk.com for some good info. Also, we have about 2 or 3 guys doing the turbo conversion in my car club at carolinadsm.com, so you could check out our forums too. Good luck.

The gs comes stock with a 420A engine that runs around 113-117 HP if you are interested in adding a turbo to this it can be done however it will cost you some change for the fact that you will want to replace your heads and rods with forged parts befor going above 10lbs but there are alot of places that make complete turbo kits for the gs, just do some homework and figure out what you want to do and how much you have to spend doing it.