First DSM couple questions

2gSpyder4g63t · Mar 2, 2010

Hey im 17, been looking at dsm's since i was 14 years old, i just bought my first dsm two weeks ago it has a few problems so i was hoping you would help me out. I still don't know to much about these car so here it goes. I bought a 2g spyder 2 weeks ago, first problem the guy told me the car can only run 8 lbs of boost because of the stock BOV(the car has e3 16g turbo) and the boost gauge is at 8 psi, there is no other mods except for cold air intake, MBC, and an adjustable FPR. first and second pull pretty good but in third when i boot it, it kind of dogs out, i dont know if this is because its not getting enough fuel for the bigger turbo(this is what my buddie said when i took him for a ride, he owns a 95 gst) the person i bought it from said there was a vac hose leak. im not sure whats up so if you guys could give me any advice that would be greatly appreciated, i know i sound like the biggest newb but please help. also i read the policy about looking for a similar post instead of creating your own but this is alot easier. thank you

spydreclips6 · Mar 2, 2010

I'd do a boost leak check on it. It sounds like you have a leak somewhere. If you have a leak the turbo will be working harder to keep the boost you want, and when doing that it will pull in alot more air then it should. When that happens the ecu will see this and spaz out causing fuel cut. Which to me sounds like your problem. Any other ideas guys? :hmm:

Gstclipse69 · Mar 2, 2010

You wont hit fuel cut on 8 lbs. You have a boost leak or several. The stock bov will leak some but not at 8 lbs. Get a boost leak tester and fix all your leaks then go from there. At least get it back up to stock boost levels.

IC Pipe Tester

2gSpyder4g63t · Mar 3, 2010

Thanks guys, after i get my master and slave cyllinder in i will check for boost leak.

zack4g63s · Mar 3, 2010

If it checks out good for leaks, this sounds dumb but whats the boost controller set at.

2gSpyder4g63t · Mar 3, 2010

well its a manual boost controller and its set at 8 psi right now if that answers your question?

jmerrill · Mar 3, 2010

that would be why it only goes to 8 PSI. There still might be a leak though.

Zdrummer15 · Mar 3, 2010

Unless there is something wrong with the stock bov, it'll handle more then 8lbs. It is a leaky piece of crap, don't get me wrong, but it should be able to take 12lbs without leaking too much. In the long run I would upgrade your injectors and fuel pump and get something like ECMLink to tune it with because that Evo III 16g is nowhere near it's ideal boost level. Right now your car probably lags quite a bit and even at stock boost level it may actually be slower then it would be with a stock t-25.

gsxpj6428 · Mar 3, 2010

i had the same problem with my gsx when i swapped in my evo 16g. there is a boost leak somewhere. i agree with zdrummer15. i safely held 12lbs with the stock BOV. hope all goes well

2gSpyder4g63t · Mar 3, 2010

where was your boost leak, just to give me a heads up where to look goona get it checked out this weekend, thanks for all the advice guys!

zack4g63s · Mar 3, 2010

I had a few, one at the throttle shaft seals, one on the cold side smic( was missing the little rubber insert where the pipe goes on the smic)and another one was my fuel injector seals.

The idle screw on the throttle body may be leaking also.

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First DSM couple questions

2gSpyder4g63t

spydreclips6

Gstclipse69

2gSpyder4g63t

zack4g63s

2gSpyder4g63t

jmerrill

Zdrummer15

gsxpj6428

2gSpyder4g63t

zack4g63s

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