Stage 1 at 16 lbs of boost? - Subaru WRX Forum
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post #1 of 35 Old 02-26-2008, 11:48 PM Thread Starter
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Stage 1 at 16 lbs of boost?

So I got my ap/dp today...didnt have enough time to install the dp so I flashed stage one just for the fun of it...man, that ap is cool. My car runs smoother in all ways. Boost comes on cleaner and faster. Kinda weird, but it kinda makes my car easier to drive (not so touchy)....ANYWYAS...tonight on the way home 55 F, 55 mph and I'm just lookin at my boost gauge and floor it in 4th to see what my max boost would be and it went up to 16-17 lbs...just for 1/2 a second then held at 14 1/2 15 lbs...Little high max boost level for stg 1 ya ?? I just got the cb and spt inake in...what gives? I'm gonna install the dp and go stg 2 in the morning...I shouldnt go past 17 max boost stg 2 right.(w/o a tune)..??? Srry just a little concerned of the over boost factor.. Z

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post #2 of 35 Old 02-26-2008, 11:57 PM
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Quote:
I'm gonna install the dp and go stg 2 in the morning...I shouldnt go past 17 max boost stg 2 right.(w/o a tune)
W/o a tune? Reflashing is your tune. Yeah you shouldn't go past 17. Did you buy from a dealership? Any kinda previous mods?
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post #3 of 35 Old 02-26-2008, 11:58 PM
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congrats on the AP...im just stage one but im with on it making the car run smoother....I cant wait for my downpipe and uppipe and stage 2....mmmmmm stage 2
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post #4 of 35 Old 02-27-2008, 12:13 AM Thread Starter
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Originally Posted by tom_noland View Post
W/o a tune? Reflashing is your tune. Yeah you shouldn't go past 17. Did you buy from a dealership? Any kinda previous mods?
Tune as in protune, Yep bought it brand spanking new 16 miles on it. I'm very curious on whats gonna happen 2morrow...excited but kinda scared for some reason...Z

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post #5 of 35 Old 02-27-2008, 12:18 AM
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Stage 2 is nice! It sounds like it is a boost spike, but i don't see why it would happen with an ap...?
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post #6 of 35 Old 02-27-2008, 12:25 AM Thread Starter
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^^Agreed, especially w/ stock downpipe....Thats why I'm scared.... cause I'll be runnin the ctatless dp 2morrow, and I've read that even w/ ap some wrx's have spiking problems w/ catless dp's...could it be fom the intake??

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post #7 of 35 Old 02-27-2008, 02:06 AM
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Dood I don't know if your boost going that high is good or bad but what I do know is that having a CAI S BAD.
You can't even use the AP with a non-factory intake, says it right there in plain english. I'd get a protune asap if I was you. You get more HP sometimes with an intake but it makes ## car run lean and is very bad for the car. Good luck with everything
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post #8 of 35 Old 02-27-2008, 08:58 AM
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It's not bad. It's just kind of unecessary until you get to around 330, 350 hp.
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post #9 of 35 Old 02-27-2008, 09:34 AM
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Originally Posted by tom_noland View Post
It's not bad. It's just kind of unecessary until you get to around 330, 350 hp.
It's bad if it's screwing up the MAF signal which 90% of CAI do.There is a reason Cobb recommends using only the stock airbox with their maps.

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post #10 of 35 Old 02-27-2008, 09:42 AM
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Yes I agree Ron, but also a CAI can be beneficial if tuned for it. COBB's OTS maps won't do you any justice though.

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post #11 of 35 Old 02-27-2008, 10:17 AM
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Well considering he has the SPT intake, there shouldnt be a problem with it. But not to say there isnt. I ran stage 1 for about 4 months before I deployed and was also hitting 14.5PSI, but I only had a CBE and didnt have the spiking problem. Did it just happen once or did you try and repeat what happened?

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post #12 of 35 Old 02-27-2008, 10:37 AM
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Quote:
Originally Posted by twentyclowns View Post
Dood I don't know if your boost going that high is good or bad but what I do know is that having a CAI S BAD.
Newtothegame, I just realized that the OP has an SPT intake. So this person is wrong by saying a CAI is bad, because a CAI doesn't enter this equation. That'll teach me to read the whole damn thread. Twentyclowns, not all intakes are cold air.

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post #13 of 35 Old 02-27-2008, 11:56 AM
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Originally Posted by Longshot View Post
Yes I agree Ron, but also a CAI can be beneficial if tuned for it. COBB's OTS maps won't do you any justice though.
You cannot tune out turbulence.You can correct improper MAF diameters by rescaling the MAF.Two different evils.Also several big name tuners have tuned 500hp cars on the stock airbox with the typical drop in filter and resonator delete.Trust me,I know alot about the problems with CAI.Only design I've seen yest that is the most promissing is APS's and Prodrive's unit which is made by AEM to Prodrives specs.Toatally different design than AEM's units.

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post #14 of 35 Old 02-27-2008, 01:27 PM
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Quote:
Originally Posted by dumdum View Post
You cannot tune out turbulence.You can correct improper MAF diameters by rescaling the MAF.Two different evils.Also several big name tuners have tuned 500hp cars on the stock airbox with the typical drop in filter and resonator delete.Trust me,I know alot about the problems with CAI.Only design I've seen yest that is the most promissing is APS's and Prodrive's unit which is made by AEM to Prodrives specs.Toatally different design than AEM's units.

Gotcha, I believe you that you know a lot about Subaru's, not just CAIs for them. How close can you get to running clean by rescaling the MAF?

Mike
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Last edited by Longshot; 02-27-2008 at 01:28 PM. Reason: can't spell
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post #15 of 35 Old 02-27-2008, 05:19 PM
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Hey Longshot not a problem there. You cuaght me in another post so now we are square again, lol. But I just read the OPs post abut putting in the DP, lets see and hope that the problem doesnt occur aymore.

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