I will vouch for the SPT intake with heatshield giving real-world power gains. My girlfriend's WRX definitely has more power in the upper RPM's and it feels like the turbo spools a bit quicker now too.
Have you logged it? I was under the impression that the SPT intake altered the MAF signal... so if you didn't tune for it, the "gains" you are noticing are likely bc yr running lean. If yr lucky enough, you'll run rich as balls and realize what a waste it really was. I'm sure it would run better on an 02 wrx tho.
i feels like i have more power....... keep telling yourself that. maybe you got power from the bov too?
knock it off matt....you know it's true. BOV, MBC, SPT and other CAI....all good mods without tuning or engine management. :biggrin:
I an getting a tune when all of my other goodies are installed. Alright I am done with this thread so carry on if you wish.
Heres the deal, I trust the part isn't going to hurt the car b/c its sold by Subaru, and if it does hurt the car then it will just be repaired under warranty. I highly doubt Subaru would market a part that hurts their vehicles though, especially when it directly says in their brochure that no additional tuning is necessary. Anyway, as soon as I get the STI TMIC and 3" TBE on the car it will be getting tuned.
First of all, there is no reason to upgrade the "BOV" (its actually a BPV though) and never would I even consider changing that out at the level the car is currently at. Secondly, I know when a car is making more power; I have spent enough seat time road tuning DSM's and Evo's. I am not impressed by loud noises, I could careless I can now (barely) hear the turbo spooling and BPV releasing. I have my Evo for being loud and obnoxious. You seem to be in this thread for no reason other than to bash on Emily and others supporting her. If you don't like her, me, or anyone else please just keep it to yourself...I don't think anyone really seems to care but you. I know I am just a n00b on this board, but I can still already tell you're the resident e-thug and get your jollies by hating on others and trying to impress everyone with your vast amount of knowledge. If you have nothing constructive to add please do us all a favor and keep it to yourself so this board can remain entertaining and enjoyable to everyone else. Remember, cars are supposed to be our entertainment and FUN hobby, there is no reason to try and make someone feel anything but.
don't worry about matt or the other wise cracks on the site, including from me. 90% of all people on here actually do care, just sometimes things get a bit out of hand because most everyone knows everyone outside of the site. either way...welcome and thanks for joining the site.
and this is where you would be wrong. Take a look at the stock airbox side to side with the SPT intake. Look specifically at the pre-MAF piping length and the velocity stack on the stock intake. Now, you said you are familiar with road tuning. In your best estimation, how do you suppose changing the MAF housing location and turbulent air would effect the MAF sensor voltage? The differences are subtle enough that most people don't notice right away... or ever, depending on butt-dyno calibrations. I'm just trying to be helpful... vouching for real-world power gains with no factual data or even supporting logic just doesn't seem like reason enough to go throwing parts at a relatively expensive, and certainly finicky car. It sounds like yr going to get it sorted soon enough anyway, so best of luck.
:emo::emo::emo: didn't mean to get your panties in a bunch. seat time in dsm's doesn't say much about how you know about how fast a car became but at least your not jumping on the bov band wagon. you seem to get so flustered easily. are you going to "quit mnsubaru" too? ware we you when the screws were stripped. you could of saved the day?
Yeah, well said Dave. Take the ribbing in stride Chris, it seems to be the norm for all Subie websites. We like to flame the n00bs. This is a good point. However, the main problem I've seen with the SPT intake is that any (if there are any) gains in flow are offset (and often overcome) by increases in intake temp. Due to the short ram design, every SPT intake I have ever seen has logged significantly higher IAT's then the stock airbox. In addition, on the stock airbox IAT's decrease as speed/rpm increase. However, the SPT intake IAT's increase as speed/rpm increase. In some cases, I have seen intake temps as high as 150 degrees (on an 90 degree day). With all of that said, if you have a good tune (or really, even stock), the SPT intake is not a dangerous mod, and many people enjoy it. Expecting power gains from the short ram design may be stretching, though.
Yeah, I trusted it too. :laugh: http://mnsubaru.com/forums/showthread.php?t=14074 Summary: I lost 15hp and 6 ft lbs of tq. SPT intake is FTL.
Therein lies the problem. Your butt cannot tell you if you are making 5 hp more no matter how calibrated you think it is. How do you know what that last degree of timing did, and whether or not you should add another? A wideband will get you in the ballpark of where you know you should be, but you still need empiracle data to back up changes you have made, whether good or bad. Sometimes an engine may like a little more boost and fuel with less timing. It could be the other way around. A butt dyno cannot tell you this, and I wouldn't trust any so called tuner who says otherwise. Matt, along with a couple of us on here, have been deeper into a Subaru than 98% of the community. He knows what he is talking about, and if he is adamant about something like that, you should listen. And we all know the difference between a BOV and a BPV. I have a BOV. kthnxbi
