I want at least 130 rwhp

well as someone already posted i made 121 whp with the wagner shorty header and an axel back muffler. i also had an intake.

if you went and gutted the precat and went with a full 2.25 exhust from there i bet you would see upwards to 126 to 128 whp..... that precat is SO damn restrictive!!! add in the underdrive pullies and all and just with the first round youll deff hit 128 whp no problem in my opinon at least.
 
now if you really want to make some power here is a list that i KNOW will get you over 140whp
CAI
AWR header
Mazdaspeed cams
j spec pistons raises compression to 10:1:1 i thnk
either the j spec intake mani or port and polish your current one
and an catback exhust

i know this cause UPSman made 144 whp with this basic setup cause he did a ful engine swap to the jspec
 
Familia323 said:
ooohhh 2 pages on N/A and people aren't bickering like kids... wow, Id love to stay involved in this conversation. Since you guys are talking about 130whp... I would also like to reach this mark. I have now an AWR header and hacked the stock air box(temporary). I'm looking at the Racing Beat cat back. I believe they said ID is 2 and a 1/4... what do you guys think? Would this be a good catback to use to open the exhaust up? I will have to make a midpipe, but that shouldnt be a problem.
A 2.25 pipe dia seems to be the norm, if you check available systems. The 2.25" is the best match for the NA DE unless you're running a balls to the wall churn with mega racing mods and you need greater extraction capability than you run on the street. 2.5 systems are available (we can argue their merits over the 2.25) and you can find larger bores. Bigger ain't necessarily better, in this instance...(naughty)
 
i spent a lot of bills on an ES 4-2-1 header, hi flow cat and mid pipe. these items should be here within june. i should be on the right track to hitting 130whp, at least i hope i am.

AEM SRI seated like a wanna be CAI, ES 4-2-1 Header, Hi Flow cat and mid pipe, magnaflow exhaust. All stock piping will have been replaced with bigger tubes of non-restrictive fury! wooooooo!

the wagon of fury is on its way.
 
by the way, DO not let my video clip fool you. the reason its so " loud " is cause of the camera. it muffles the sound a lot and thats why it sounds like a damn sr20 hauling ass, i which it sounded that mean, but it doesnt. the exhaust itself sounds really close to stock, just a deep growlish hint to it. when i WOT all i really hear is my intake sucking like crazy. my intake is fuggin loud. because its a SRI, its gonna be much lounder cause its RIGHT under the hood, also, the way i have it positioned, its right behind my left headlight. so with my window down, all i hear is the intake. even from outside the car, all you hear at WOT is the intake. the exhaust kicksass for the price, its nice for what you pay. ill get back to you guys on the " rusting " issue people have blabbered about, although i live in tucson az where it hardly rains. ill let you know after monsoon's come this summer.
 
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mp5smuggler said:
now if you really want to make some power here is a list that i KNOW will get you over 140whp
CAI
AWR header
Mazdaspeed cams
j spec pistons raises compression to 10:1:1 i thnk
either the j spec intake mani or port and polish your current one
and an catback exhust

i know this cause UPSman made 144 whp with this basic setup cause he did a ful engine swap to the jspec
so if he made 144whp by swapping out those parts for the Jspec parts, why is it that no one talks about this anymore? Did something go wrong? I'd be happy with 144whp...
 
Bigger throttle bodies help with better throttle response, mostly.

Also, if you're going to go with a set of high compression pistons, I don't think I'd go with the JSpec pistons... They should be fine for most setups, but honestly it'd be better to just get a set of custom made forged pistons and drop those in instead; That way you have strong, forged pistons running the proper compression rather than the cast ones on there now, or the higher compression cast pistons from Japan. Just an idea. =) The ECU makes a good difference in power, too, given that the tuning on the stock ECU is rather conservitive. I'd probably go with adjustable cam gears, too, just so you could get everything tuned juuuuust right. =)
 
mazdaspeed sells some high compression pistons, higher than the fsze pistons.

upsman didnt use the wiring harness/ ecu from the fsze because it is OBD-I, and would be more trouble than its worth to wire that sucker up.

the fsze swap is quite costly for a ~20 hp gain, but then again if you look at the dynos of the fsze intake manifold + intake cam it smooths it out tremendously, and the top end doesnt die off after 5.5 like it does on our fsde.
 
mp5smuggler said:
what amazes me is how everyone thats looking for NA power seems to forget the pistons.
Oh, I remembered, but with only 4600mi on the clock, I am not ready to tear her down just yet.
 
Hey Smuggler, what are your mods, and what dyno was that run done on? It would be rather unique for just a header and a muffler to get you 20whp.
 
dynapuck where they take your rims off.
i have wagner shorty headers a sai an axel back and thats all that would make a diff. i mean a kartboy shifter and short ant isnt going to change anything.

btw it say it very clearly on the dyno chart what it was done on
 

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