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-   -   04 WRX loss of horsepower, Help! (

FredasinFred 10-22-2013 02:11 PM

04 WRX loss of horsepower, Help!
Recently went stage 2, Cobb AP tune after bolt-ons, I ran the AP dyno and was at 290-295 hp initally. I ran my car in 4th gear until the engine shut off and all the lights came on at about 125mph (what happened?). As of recent, I've ran the AP dyno again a few times and I am targeting around 240 hp. What happened to the lost hp and how can I get em back? Thanks for your time.

brfatal 10-22-2013 02:17 PM

I suggest never using that feature again. The dyno function is completely useless and in no stretch of the imagination accurate.

Does the car actually drive different?

FredasinFred 10-22-2013 02:20 PM

Nothing other than it being quicker.

boo-key 10-22-2013 02:56 PM

549 Attachment(s)
What bolt-ons?

FredasinFred 10-22-2013 06:13 PM

Uppipe, and turboxs stealthback

boo-key 10-22-2013 06:40 PM

549 Attachment(s)
[quote=FredasinFred;380273]Uppipe, and turboxs stealthback[/quote]

So your using a stage 2 map without a downpipe? You shouldn't be using stage 2 with stock downpipe . For the loss of power I would start by checking your uppipe for leaks, cracks, or broken welds . Then check all your hoses and turbo connections. Any strange noises?

FredasinFred 10-22-2013 06:47 PM

Downpipe is part of the stealthback, and no strange noises.

boo-key 10-22-2013 07:13 PM

549 Attachment(s)
[quote=FredasinFred;380313]Downpipe is part of the stealthback, and no strange noises.[/quote]

Ok, searched it and only saw the catback. How much boost are you building?

BLAZE2099 10-22-2013 07:23 PM

You should really change your scream name Adair

FredasinFred 10-22-2013 08:22 PM

building 13lbs-ish

FredasinFred 10-22-2013 08:35 PM

theoretically couldn't just stick my head under the hood and sniff around the turbo for exhaust?

Claythrow 12-20-2013 06:15 AM

check all vacuum lines, especially boost. those should be zip tied or clamped so that nothing gets out

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