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#1
03-18-2008, 07:51 PM
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Turbo question
hello to all i have a 1998 eclipse spyder with a 2.4L i was over at a friends house and noticed that the exhaust manifolds for his GST fit were my headers go. now this is my question if i do decide to turbo it with an intercooler what is a safe pounds of boost to run with stock internals? thanks for all the help and on a side note if i turbo it how much faster would that make it
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#2
03-18-2008, 08:20 PM
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Re: Turbo question
Welcome to AF!
Im not really sure on how much boost the 4g64 motor will take. VG runs about 8-10psi I beleive with no problems. It will be a lot faster. Make sure you know what your getting into. Turboing a car is a lot of work and requires a good bit of knowledge to make everything work correctly. Do your research and you should be fine.
__________________
98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#3
03-18-2008, 11:48 PM
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Re: Turbo question
Ive been running about 9 psi on mine with a 14b with no problems. And yes, turbo with supporting mods on your car, will make it alooot faster.
__________________
Caleb vanilla gorilla '99 Spyder 2.4 5-speed - Red/black,14b,slow '96 Eclipse GST 5-speed - Paint www.myspace.com/ballsoutperformance
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#4
03-18-2008, 11:49 PM
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Re: Turbo question
Yeah dude, talk to vanillagorilla about that. SilvrEclipse turbo'd a 420a and I am sure he can be of help too. I'd for sure leave it at the WG spring pressure though, I wouldnt go more than 8 psi.
__________________
 Build on hold until I get a good paying job, either in school or once I get out. At that time a full tear down and complete rebuild should be in order. The Purple People Eater will ride again... January 2011 can't come soon enough.
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#5
03-19-2008, 12:00 AM
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Re: Turbo question
Yeah but in order to run low boost your going to have to rely on something more than the factory internal wastegate. I tried running mine on internal wastegate and it would want to boost to like 13psi, so thats why I'm currently converting to External wastegate. Im running a Tial 38mm external wastegate with an 8psi spring.
__________________
Caleb vanilla gorilla '99 Spyder 2.4 5-speed - Red/black,14b,slow '96 Eclipse GST 5-speed - Paint www.myspace.com/ballsoutperformance
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#6
03-19-2008, 01:03 AM
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Re: Turbo question
i ran 6=7 lbs on my 420A with 450ccs and a 190 lph... no problem. ive heared u can get about 8-9lbs outa a 4g63 with jus fuel system...
__________________
'93 3000gt VR-4
170k, 27k on JDM motor MBC @ 14.5 psi Datalogger Intake T-Pros Downpipe Gutted Pre Cats Mods to come: Upgraded Fuel System and 75 shot of Nitrous, Full Exhaust and hopefully 15Gs Audio Sony Deck Eclipse 6x8 2 ways in the back Clarion Kevlar cone Component System in the front 2 Alpine Type S 10 inch DVc Subs 1 Audiobahn 10 inch DVC D Jones Series One 800 Watt Jensen amp and a soundstream 300 watt 4 ch to the speakers And still under 4000 lbs w/ me in the car 
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#7
03-19-2008, 02:09 AM
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Re: Turbo question
You should be able to get ahold of like a 5 psi spring... and IIRC they arent expensive or hard to change.
__________________
Build on hold until I get a good paying job, either in school or once I get out. At that time a full tear down and complete rebuild should be in order. The Purple People Eater will ride again... January 2011 can't come soon enough.
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#8
03-19-2008, 09:53 AM
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Re: Turbo question
Yea I didn't have much luck with an internal wastegate either. It ended up costing me the motor. It either wouldn't shut all the way or it wouldn't open much
__________________
98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#9
03-23-2008, 01:12 PM
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Re: Turbo question
what is going on i like the fact that i can turbo my car on stock interals i think that is what i am going to to thanks alot
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#10
03-23-2008, 01:58 PM
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Re: Turbo question
Good luck with the process. I would actually like to see a turbo build thread in the project section with pics of the whole process.
__________________
98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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