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Old 03-07-2011, 12:56 AM   #1
ImprezaJake
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Default Ok so im gettin the raptor sc kit soon....

I need to know a list of parts I need just to run at 7psi. My limit is $5000. Minus the $2800 for the kit
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Old 03-07-2011, 01:44 PM   #2
KaptainKandy
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I think this may be something you would want to research a little more before dropping 5 grand on it.

Read this thread (and similar aftermarket FI threads) to learn what you need ...

http://www.rs25.com/forums/f14/t9708...-system-s.html
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Old 03-07-2011, 11:23 PM   #3
ImprezaJake
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so you saying to not get one? ive read those threads before
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Old 03-08-2011, 11:35 AM   #4
LetItSnow
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I'll give the Raptor (and any other centrifugal) supercharger the credit of being a very easy install for some forced induction. That's fantastic for the light-duty wrench turners.

The thing that gets me is that a lot of light-duty wrench turners aren't clear on the lag thing involved with a centrifugal.

If you're cool with the idea that your maximum boost won't show up immediately (as fixed displacement superchargers) or reasonably soon (as turbos) but actually around redline, then go for it. The things just don't breathe much at low-to-mid RPMs.

I like my torque always on tap; it's key for autocross (and impresses WRX drivers ). Your needs or wishes may vary.

The Raptor comes as a pretty basic setup at the $2800 level. I don't know if Rallitek's support demands the NA AccessPort. If it does, among the other hardware that's definitely preferential to have, that $5k will disappear fast.
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Old 03-08-2011, 12:44 PM   #5
ImprezaJake
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So your saying I won't feel the boost until almost redline? Then why would they sell it and I thought superchargers came into boost around 3500 rpms and if I get a tune from an awd shop I shouldn't have lag?
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Old 03-08-2011, 01:19 PM   #6
KaptainKandy
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Quote:
Originally Posted by ImprezaJake View Post
so you saying to not get one? ive read those threads before
I'm not knocking the Raptor kits at all. If I went the FI route sometime down the road I would jump on this kit.

With that said I sugguest you go back and re-read those threads (or ask some questions of your own). Not to sound like a dick but plenty of people in that thread have asked that very same question, some of whom have 2.5i's. Plus, which parts you need largely depends on your intentions (both present and future) for your car.

Your budget could go up and down by a sizable amount depending on what route you want to go with EM. Also factor in whether you plan on using an intercooler. If so, TMIC would require you to cut up your 2.5i hood or swapping/buying a new one. FMIC would require some extra custom fabbing. Some guys have even used WTA solutions. Also have to consider the additional wear you will be putting on the tranny. You could baby it but I would upgrade the clutch. Are you looking for a bare minimum parts list to install the kit?

You should have a clear map of what you want/need for a project like this even if you wont be the one doing the labor.

Last edited by KaptainKandy; 03-08-2011 at 01:25 PM.
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Old 03-08-2011, 09:25 PM   #7
ImprezaJake
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Quote:
Originally Posted by KaptainKandy View Post
I'm not knocking the Raptor kits at all. If I went the FI route sometime down the road I would jump on this kit.

With that said I sugguest you go back and re-read those threads (or ask some questions of your own). Not to sound like a dick but plenty of people in that thread have asked that very same question, some of whom have 2.5i's. Plus, which parts you need largely depends on your intentions (both present and future) for your car.

Your budget could go up and down by a sizable amount depending on what route you want to go with EM. Also factor in whether you plan on using an intercooler. If so, TMIC would require you to cut up your 2.5i hood or swapping/buying a new one. FMIC would require some extra custom fabbing. Some guys have even used WTA solutions. Also have to consider the additional wear you will be putting on the tranny. You could baby it but I would upgrade the clutch. Are you looking for a bare minimum parts list to install the kit?

You should have a clear map of what you want/need for a project like this even if you wont be the one doing the labor.
I already have a wrx hood, Im gettin a fmic already have people to install it for me that already have it.. Im getting tuned by jms the best awd shop for evos and stis in texas. Tranny is auto so I dont have to worry about the clutch. And the parts list I have for now is, oil catch can, walbro fuel pump, bigger injectors, and oil catch can to just run at 8psi later in the future ill get cams etc..
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Old 03-09-2011, 08:46 AM   #8
LetItSnow
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Quote:
Originally Posted by ImprezaJake View Post
So your saying I won't feel the boost until almost redline? Then why would they sell it and I thought superchargers came into boost around 3500 rpms and if I get a tune from an awd shop I shouldn't have lag?
No, I said you won't have full boost until redline. With a 7psi max, you'll probably be around 3psi at 3500RPM, from the dyno plots I've seen.

This is exactly why I don't like centrifugal superchargers.

You should do a lot more reading before throwing $5k at forced induction. First of all, sort out how boost builds with centrifugals, turbos, and fixed displacement.
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Old 03-09-2011, 08:52 AM   #9
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Worth noting though about the Raptor kit...
Were it a choice between it and staying NA, I'd choose the Raptor kit in a heart beat!
I, like LetItSnow, am not a huge fan of Centri SCs. But, there is no denying it's a vast improvement over no boost at all!
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Old 03-09-2011, 09:17 AM   #10
LetItSnow
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Quote:
Originally Posted by Skidd View Post
But, there is no denying it's a vast improvement over no boost at all!
Oh, I'll give you that. They're just so damned misunderstood.
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Old 03-09-2011, 10:03 AM   #11
scarless ronin
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i followed your build Skidd, and i've looked into a few of the other ones too, but what kind of numbers are you guys putting down? how do the diy kits compare to the raptor kits?
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Old 03-09-2011, 08:55 PM   #12
ImprezaJake
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Quote:
Originally Posted by Skidd View Post
Worth noting though about the Raptor kit...
Were it a choice between it and staying NA, I'd choose the Raptor kit in a heart beat!
I, like LetItSnow, am not a huge fan of Centri SCs. But, there is no denying it's a vast improvement over no boost at all!
where you at in sa texas? im about 25 mins from sa
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Old 03-09-2011, 11:25 PM   #13
Skidd
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@scarless: Don't know yet. I've not been on a Dyno. Now that I have my WRX injectors finally running the way I like, I'm going to get a proper tune this summer. My 1/4 mile ET+MPH+weight say I'm making about 220-230 at the wheels.

@Jake: North East SA. Inside 1604. Get your butt out to one of the local AutoX races!! I'm a regular. Well, at least I will be once again now that my youngest daughter (of 3) is 3mo old. I just haven't had time to race lately.
sasca.org
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Old 03-10-2011, 11:21 PM   #14
ImprezaJake
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Quote:
Originally Posted by Skidd View Post
@scarless: Don't know yet. I've not been on a Dyno. Now that I have my WRX injectors finally running the way I like, I'm going to get a proper tune this summer. My 1/4 mile ET+MPH+weight say I'm making about 220-230 at the wheels.

@Jake: North East SA. Inside 1604. Get your butt out to one of the local AutoX races!! I'm a regular. Well, at least I will be once again now that my youngest daughter (of 3) is 3mo old. I just haven't had time to race lately.
sasca.org
damn i didnt know there was auto x's around here?
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