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No power increase with turbo.?
Posted: Tue Dec 20, 2005 12:32 am
by turbonator
I don't feel any difference @ 3 to 4000 rpm when the boost should be kicking in. It's not hesitating or lagging. It accelerates really smooth and the turbo sounds good but just doesn't do much.
Is it not getting enough fuel? old injectors. ?
I've changed the plugs but not the wires. I did the fuel filter K&N airfilter and I think thats all I've done in the last 3 years I've owned it.
I've been getting 400km's per tank of gas for the last 2 years also.?
Posted: Tue Dec 20, 2005 3:00 am
by azn2nr
if its stock its so small that you really wont feel the difference
Posted: Fri Dec 23, 2005 4:35 am
by dzx
yeh, the stock turbo doesn't really lag much
Posted: Fri Dec 23, 2005 6:36 am
by magicmike
how about a stock wrx turbo and saab intercooler setep? this is whats in the new ss I just bought. I was going to post the exact same problem but after reading this I figured I'd add to this one. my car makes a ton of noise but thats about it. not really sure whats going on. seems like it would be faster if it was an n/a.
Posted: Fri Dec 23, 2005 7:53 am
by napphappy
do either of you have a boost gauge? If you have a boost leak the turbo will spool up like normal but you(and the engine) wont see the boost. thus no power.
just a thought
Posted: Fri Dec 23, 2005 8:40 am
by magicmike
yes I have a boost gage thats plumbed into the intake manifold. I get around 8 psi at full boost. not really sure whats going on. I have noticed that the saab setup is very "hokey". some hoses dont have clamps on them at all. I need to investigate this further but its been very cold here.
Posted: Fri Dec 23, 2005 5:25 pm
by turbonator
napphappy wrote:do either of you have a boost gauge? If you have a boost leak the turbo will spool up like normal but you(and the engine) wont see the boost. thus no power.
just a thought
How much would a cheap boost gauge cost.? how hard to install.?
Posted: Fri Dec 23, 2005 5:31 pm
by magicmike
turbonator wrote:How much would a cheap boost gauge cost.? how hard to install.?
you cant go too cheap or it wont be accurate. expect to pay 50-75 for a decent gage. its easy to install also you can find tons of pics on here showing you where to "T" into the manifold.
Posted: Fri Dec 23, 2005 6:01 pm
by Matt Monson
8 psi is about right. These cars aren't tuned to have a lot of boost. Try getting a manual boost controller and upping the boost to 12psi. You could go as far as 14 or so on that WRX turbo (which is no larger than the stock one, just more modern in it's bearing design) but you will need a fuel cut defender for anything over 12.5psi...
Posted: Sun Dec 25, 2005 8:47 am
by dzx
is your boost solenoid hooked up, maybe a line came off of it