perrin short ram for 09 wrx

09rex8893

New member
put on a perrin short ram today and my car feels akward at time, a litttle lag over 4500 rpm's, anyone know why?

 
did you unhook your battery to reset the computer so that it could learn you have it now and not use its old settings of the air box

 
hate to say it but should of stuck with a stock airbox with k&n drop in or gotten a aem cai and you could have ogtten a 70 dolar stage one tune online and be getting real results. most likley your car is preformign worse now but sounds better when hitting the gas.

do you plan on doing other mods? if so do that first then get a tune ortherwise u will have to keep retuning it

 
well a downpipe means u r goign to go stage 2 and a downpipe is usless unless u put a new catback on there also. no sense in gettign betetr air flow from engine to just slow it down again at the exhaust. to be honest a ram intake on a 08 is a downgrade front he stock air box. the stock intake is proven to be a good performer. if you def want an intake i would suggest selling the perin and goign with a aem cai. then that way u can get a xpt tune for cheap wich is tuned specifically for a aem and u dotn need a custom tune

 
Get yourself a downpipe and then go get a tune at one of the tuners in MA. Or get rid of the intake buy a downpipe and a xpt tune. Then have one of us reflash your car with the new map. Or buy your own tactrix cable.

 
on a stock tune, you will lose power in the top end if you change the intake out. (keeping that simple haha)

Pick one of these options:

1. You need someone to rescale your MAF (mass airflow sensor) for you (super simple w/tactrix) if you're not looking for much power, but want your car to run properly.

2. If you're looking to get a decent power upgrade with it, you need a stage1 tune, Walbro 255lph high flow fuel pump, and you need to rescale your MAF in that stage1 tune. 08+ stock fuel pumps are junk and can barely support stock boost/timing levels above 5500rpm. In fact, they will occasionally cause small amounts of knock in that rpm range due to lack of fuel on a STOCK tune haha... Must be the same pump they use in the N/A impreza. Stock tune is super crappy if you catch my drift.

3. You can take the intake off asap, because without a tune you're running lean.

hope this helps
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-----Added 8/22/2009 at 07:51:54-----

also, XPT tunes are nice, but he usually tunes for "no knock" instead of A/F and "no knock" so his A/F's tend to run in the high 11's and low 12's under boost. On the corn oil we have here in maine, those are too high. You need to be down in the 10.6ish range under boost. XPT tunes are a great place to start, then have someone tune those A/Fs down for Open Loop.

 
no..... and i honestly wish kristof would stop saying that. ITS FALSE INFORMATION, and i dont know where hes getting this from. a downpipe does not void a warrenty. voiding a warrenty (to me) is something a dealer would do to completely make any warrenty null and void. meaning that they would decline any and all claims brought forth, or refuse to cover work needing to be performed at cost to subaru as outlined in the bumper-to-bumper warrenty. this is not the truth.....

no company can deny to work on your car unless they can prove that something you did (outside of normal driving) is the reason for the problem. like your car has a clunking from the suspension after a spring install = not subarus problem. BUT they will not deny you from getting that trunk latch that's not working fixed cause you have a downpipe.

just know as you modify and change you vehicle, that you are opening the doors for subaru to pick over your car with a fine toothed comb if things do arise out of the norm. we drive (some of us) turbo charged cars with a racing background. most people dont buy them for a cheap commuter car. we buy them because we want something fast and easily modified. dont think by going stage 2 that they will just never work on your car ever.... but you may wanna know ahead of time that they may not wanna cover that engine you blew up after 3 weekends auto-xing on a stage 2 car with a piss poor tune.

so it may make it difficult to prove that its subarus bad motor that blew up when you have a stage 2 car. NO ONE does stage 2 for better gas mileage. they know if you've done it you're driving it like its not intended.

you have to pay to play..... and dont expect subaru to foot the bill for something you messed up. but dont expect them to NOT foot the bill for something that you didnt have control over.

make sense???

 
yeah sorry it dosent void the whole car warranty but gives the dealer an out to not fix your car if anything goes wrong with your engine or tranny. a lot of it depends on the dealer

 
I heard that with light mods, maybe even up to stage 2, they will void out individual things like the turbo and gaskets on the intake and exahuast. Stuff that you would probably be footing the bill to upgrade anyway if your modding. Its when you do something that will void warranty on the engine block and related components, or the transmission that scares me. I have a 100,000mi added security bumper to bumper warranty, which in hindsight was really stupid because I wanna do something just a little better than stage 2 eventually, but I will lose the $2k I spent for the warranty for most parts. If I void the warranty on my stock turbo or the axles, or the exhaust its no biggie. That doesn't scare me as bad as losing it on the engine internals. That is where you start racking up the big repair bills.

 
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