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Old August 10th, 2013, 03:59 AM   #1 (permalink)
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Turbo 4g69 on stock internals?

Ok so I have an 07 eclipse gs 4g69 and it is 100% stock. First off is it possible to bolt on a turbo on stock top and bottom end and if so how big a turbo and how mich boost? If not then what do I have to do in order to get ready for enough boost to get me around 325-350 hp?
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Old August 10th, 2013, 07:15 AM   #2 (permalink)
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For 325-350hp go buy a GT and supercharge it with the RIPP kit. On stock internals I've heard max psi is around 8 but daily driving is better with 5 or less. The thing with the eclipse is, there are no turbo kits for it everything has to be custom unless you can find an str manifold. Next time before you ask a question just do a little searching first, oh and welcome to the club!
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Old August 10th, 2013, 12:04 PM   #3 (permalink)
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Originally Posted by mivecftw View Post
Ok so I have an 07 eclipse gs 4g69 and it is 100% stock. First off is it possible to bolt on a turbo on stock top and bottom end and if so how big a turbo and how mich boost? If not then what do I have to do in order to get ready for enough boost to get me around 325-350 hp?
for 350hp you will need forged wiseco pistons and rings , race bearings, like ACL or similar, H-beam rods eagle or manley, and ARP fasteners all around.

I drive a lancer but it has the same motor as the gs, I run 12psi daily on a big 16g. the only thing I've done to the motor is ARP head studs...how long will it last? don't know yet, lol
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Old August 10th, 2013, 12:10 PM   #4 (permalink)
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And what he just listed is probably more than you paid for the car unless you do all the work yourself. I priced out just a turbo kit and it was about 5k with tuning.
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Old August 11th, 2013, 05:42 PM   #5 (permalink)
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i built my turbo kit from scratch...fabbed my own manifold and intercooler piping...ran me $1,500 for the whole kit...

doing it yourself is the best way to learn and know the system... if you want to put more than the car's value into labour cost, you should just buy a stock turbo car...

no offence if you're not a gear head, but in my opinion if you can't tear a motor down and put it back together on your own, don't even bother with turbocharging...
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Old August 11th, 2013, 06:07 PM   #6 (permalink)
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Quote:
Originally Posted by CrAnSwIcK View Post
i built my turbo kit from scratch...fabbed my own manifold and intercooler piping...ran me $1,500 for the whole kit...

doing it yourself is the best way to learn and know the system... if you want to put more than the car's value into labour cost, you should just buy a stock turbo car...

no offence if you're not a gear head, but in my opinion if you can't tear a motor down and put it back together on your own, don't even bother with turbocharging...
that^
if you dont know what youre getting yourself into. dont do it. this is not an anything goes bolt on car. learn your engine first. then decide what you want to do with it. but right out of the gate asking over 300hp from your gs is not the way to go.
a gt will get there a lot faster with a lot less work. and there's other things to worry about on the gs. not just the engine. its a lighter car, not meant to handle the torque that the gt puts out.
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Old November 14th, 2017, 07:30 PM   #7 (permalink)
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What is everyone's experience with max PSI on stock internals...can the 4g69 take 12-13 PSI daily?
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Old November 16th, 2017, 10:23 AM   #8 (permalink)
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6-8 is best for daily 8 is tops. 10 you can do if its not daily which some may oppose to that but 6 will last how ever long you need it to as long as you maintain everything properly. Turbo cars require a little more maintenance then a stock car.
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Old November 21st, 2017, 09:03 AM   #9 (permalink)
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What is everyone's experience with max PSI on stock internals...can the 4g69 take 12-13 PSI daily?
I ran 12-14psi daily for years on 94 octane fuel...using fastworks tuning software...no issues. I eventually blew up the engine at 18-20psi (running 94 and alcohol injection) when my alcohol/water injection pump failed...
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6-8 is best for daily 8 is tops. 10 you can do if its not daily which some may oppose to that but 6 will last how ever long you need it to as long as you maintain everything properly. Turbo cars require a little more maintenance then a stock car.
8 psi is safe with a good tune...and can be run on 91 octane fuel no problem...at 10psi or above, you will need ARP head studs, or the head could lift off the block and blow the gasket...with good tuning, 12psi can be safe for daily on 94 octane fuel...
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Old November 21st, 2017, 09:09 AM   #10 (permalink)
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Is it just an illusion, but is there actually more helpful stuff about how to turbo a GS lately than "sell it and buy a GT"?

I swear it used to just be piles of people who don't know anything about a turbo asking where they can buy the kit, but now it seems like everybody is fabricating one
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Old November 21st, 2017, 09:45 AM   #11 (permalink)
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I have ran 8-12psi since my car was turbo since I got it... 7+ years turbo with engine mods going on gradually....Now being twincharged even with a built motor (I have two engines,one stock,one built) freaks me out running 25psi (You never know when she could let go or even a simple gasket failure could happen).....
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Old November 21st, 2017, 11:47 PM   #12 (permalink)
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Originally Posted by Infliction View Post
a gt will get there a lot faster with a lot less work. and there's other things to worry about on the gs. not just the engine. its a lighter car, not meant to handle the torque that the gt puts out.


UThereís actually no real difference in the body of the GS and the GT.

A 4 cylinder is much simpler to turbo.

Less Weight in the front of a 4 cylinder makes for less under steer
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Old November 23rd, 2017, 12:20 PM   #13 (permalink)
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Originally Posted by Infliction View Post
that^
a gt will get there a lot faster with a lot less work. and there's other things to worry about on the gs. not just the engine. its a lighter car, not meant to handle the torque that the gt puts out.
Thats not completely true. An SE GS uses GT suspension and shocks. I learned that the hard way ordering shocks for a GS when i lowered my car on tein s-techs. At least what i saw. The shock rods are bigger around & stiffer.
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Old November 23rd, 2017, 02:30 PM   #14 (permalink)
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The actual platform is the same though, and the extra shock strength is to deal with weight, not power
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Old November 23rd, 2017, 05:57 PM   #15 (permalink)
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Hehe yeah but it can and will inprove handling when u stiffen a ride.. sometimes. My car is pretty stiff has always been i cant bounce my car on orig shocks nor new ones. But back on topic. Stock motor is strong for what it is. To much boost makes multiple blow off noises u dont wanna hear
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Old November 23rd, 2017, 06:05 PM   #16 (permalink)
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Quote:
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To much boost makes multiple blow off noises u dont wanna hear
But dude.. that's the best sound in the world
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Old November 23rd, 2017, 06:07 PM   #17 (permalink)
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My evo makes that noise. The blow off sounds like an AR
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Old November 23rd, 2017, 08:48 PM   #18 (permalink)
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My evo makes that noise. The blow off sounds like an AR
Haha nice, almost bought an evo x but backed out of deal as i didnt want to wait for the guy to get title from bank as he just paid it off lol. Oh well now my eclipse will be my evo minus the awd
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Old November 23rd, 2017, 08:49 PM   #19 (permalink)
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Haha nice, almost bought an evo x but backed out of deal as i didnt want to wait for the guy to get title from bank as he just paid it off lol. Oh well now my eclipse will be my evo minus the awd


Where thereís 4 wheels thereís a way. Wait. Thatís not quite right.
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Old November 23rd, 2017, 09:50 PM   #20 (permalink)
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The only thing I hate about the car is. Is sluggish as hell until boost. Then it just slams you
Into the seat.
I live in a city so wot from a red light it kinda feels like
1k RPM feels like 40 ish WHP
2k RPM feels like 60 ish WHP
3k RPM feels like 80 ish WHP
3.5k RPM it just hits and feels like 300 WHP
At 4k RPM I'm at peak boost 28 PSI then it comes down to 20 - 21 PSI at redline
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Old November 24th, 2017, 08:11 PM   #21 (permalink)
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Quote:
Originally Posted by V8GSGoboom View Post
The only thing I hate about the car is. Is sluggish as hell until boost. Then it just slams you
Into the seat.
I live in a city so wot from a red light it kinda feels like
1k RPM feels like 40 ish WHP
2k RPM feels like 60 ish WHP
3k RPM feels like 80 ish WHP
3.5k RPM it just hits and feels like 300 WHP
At 4k RPM I'm at peak boost 28 PSI then it comes down to 20 - 21 PSI at redline
Mine no feel like that when i hit it i am still getting full boost around 2k but thats only 7-8 pound but its still nearly instant.
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Old November 24th, 2017, 09:17 PM   #22 (permalink)
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I got mine used with mods already installed From what I searched dude might have installed a bigger turbo. Then traded it in because he fucked up lol
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Old November 24th, 2017, 10:22 PM   #23 (permalink)
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what size turbo are you running? a t3/t4 setup is about right for what you describe.
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Old November 25th, 2017, 08:15 AM   #24 (permalink)
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Its a AMS STX500
But I don't know the size.
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Old November 28th, 2017, 04:51 AM   #25 (permalink)
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This all sounds good...I know it has been done before by many, I want to supercharge my 2012 Galant 4g69 engine...so far I went and pulled a m90 supercharger from a junkyard from a gt grand Prix, went to their map calculator and found out a 4.2" pulley would be needed for about 8-9 PSI from it for our 6.5" crankshaft. And thinking about getting Aem Fic to run it....will set it up where the air box is and make custom bearing drive extension to reach over to the belts....idea: maybe move battery to the trunk and build a intercooler to fit that area, then run 8-9 PSI until I one day build the engine up...just my idea right now, but I do have the supercharger ?
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Old November 28th, 2017, 07:59 AM   #26 (permalink)
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Quote:
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Its a AMS STX500
But I don't know the size.
Thats a customized Garrett GTX30R. Upgraded turbo for the evo x.

Same style as mine but seems smaller but not sure. Mine is a GT3076R. Yours should spool pretty quickly, especially it being ball bearing.

https://www.amsperformance.com/cart/...ed-turbo.html/
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Old July 16th, 2020, 06:43 AM   #27 (permalink)
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Originally Posted by V8GSGoboom View Post
The only thing I hate about the car is. Is sluggish as hell until boost. Then it just slams you
Into the seat.
I live in a city so wot from a red light it kinda feels like
1k RPM feels like 40 ish WHP
2k RPM feels like 60 ish WHP
3k RPM feels like 80 ish WHP
3.5k RPM it just hits and feels like 300 WHP
At 4k RPM I'm at peak boost 28 PSI then it comes down to 20 - 21 PSI at redline
But thats the best part
Ive been looking into it there is a guy who is fabricating downpipes and manifolds possibly for sale. i dont know heres a link to a video in which he goes into autistic detail about the 4g69 i was wondering if anyone else could spot that this man might be talking out the side of his mouth or does he know his stuff?
The video
https://youtu.be/lJCK8zsXb7A
The Facebook page https://m.facebook.com/MrBishi-racin...7205437321150/
Phone post

Last edited by Snoot; July 16th, 2020 at 06:50 AM.
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Old July 16th, 2020, 11:34 AM   #28 (permalink)
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Oh, that's my friend Alex. Yeah, he's legit. He based his kits on my build, minus the twin scroll manifolds and using an evo turbo. He went T3 flange on his instead.

He and I discuss this stuff a lot, and we do R&D. He's actually the one that came up with the 4G63 intake manifold idea, I just was the first to test it. He even did the leg work of sourcing a pair of OEM manifolds cheap

More to his credit, he's got a sweet foxbody, and is doing a 2J swapped rwd 4G. He knows his stuff for sure. He's also the only Fastworks rep Michael has ever brought in. So if you need a tune, contact him!! It's so much faster
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Old July 30th, 2020, 09:01 PM   #29 (permalink)
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I've been reading this post and I was wondering where do you get ARP head studs for a 2.4 4G?? I plan on running turbo to..I ripped my whole engine apart painted it got new custom blue silicone hoses..now I jus need to remove the cylinder head and start the pistons n rods..from there I'm going to order a turbo manifold from a guy that makes them in Canada
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