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Old 01-08-2001, 03:24 PM   #26
stimpy
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Out of curiosity, why do you think the force one kit would not fit in the impreza? From the picture, the dimensions of the motor compared to the engine bay look close to the same as the impreza. As for intercooler/aftercooler, thats as simple as hacking up the pipe and having one put in. It seems to me, that this kit could easily be adapted to the Imp.
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Old 01-08-2001, 05:08 PM   #27
ARG
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Rally Blue & Supercharged

Cool

So am I the only guy on earth that has a perfectly running Rimmer kit? Here are some pics. Yes, I have smoked my clutch already. That is my next purchase (after the Primm Motorsports OMP strut bars). I know, I know, my priorities are wrong but I couldn't resist that group buy.

Any questions? Give me a ring....





Thanks!!
ARG

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Old 01-08-2001, 05:12 PM   #28
TR
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my Rimmer runs well, but its the Eaton kit, not the AutoRotor.

'runs well' is probably the wrong way to describe it. it functions and nothing has blown up, but I am not impressed by the performance.
I think an intercooler and higher boost would solve all of that, but the way the top mount (with hideous hood bubble) is designed it would take a complete redesign to get an intercooler on it.
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Old 01-08-2001, 06:10 PM   #29
stimpy
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Al, as far as I know, you are the only one with a fully functional sidewinder kit. Since I have plans on the Tec-II in about 2-3 months, the MAP problem doesn't bother me. The problem I have is if I am paying $3295 for a kit, I do not want to have to go through and redesign the system to function properly. Could you detail, specifically, what items you had to address while installing the kit? Back in Vegas (Scooby meet), you had mentioned you weren't doing rides because you wanted your car to cool down. Have you been having any heat problems or detonation problems due to the inefficiency of the intercooler and/or supercharger or were you simply wanting the car to cool off?

You may PM me this information, if you don't feel like detailing it in this thread.

As for rimmer and the financial problems people have had, I don't think I will have any problems like that since I could easily drive out to their shop and personally pick it up.

Thanks,

Jon
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Old 01-08-2001, 07:06 PM   #30
ARG
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Question

Are you sure you don't have me confused with some one else? My car doesn't overheat or ping. I gave a guy a ride from Utah, and 5 others at Findley Subaru. I don't remember not giving anyone a ride.....wierd.

As far as mods go, I changed the fuel pump to a Mazda RX7 TT and I mounted the air filter inside the fender. I cleaned up the welds a bit on the intercooler and the flashing on the castings and that's about it. Also re-routed the drive belt and installed sealed bearings on the pullies. I fabricated an air box and foam seal for the intercooler. Everything else is Rimmer. So far, the car runs real strong and I don't have any knocks or thumps coming from the engine. One nore thing, I installed NGK platinum plugs 2 steps colder than stock.

Ok, that's it. If anyone buys a Rimmer kit, I will help you with install tips and tuning.

Regards, ARG
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Old 01-08-2001, 07:14 PM   #31
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Force 1's website says that their kit fits the Impreza.
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Old 01-08-2001, 07:17 PM   #32
stimpy
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Well I am sure it was you. You had just gotten done with a test ride, and I think Dan E. asked for a ride. You said something about cooling down before giving Dan E. a ride. I dunno, I may have misunderstood what you were getting at. I do remember touching the piping coming from the supercharger and it was HOT.

I was under the impression that you had to modify lots of things to get the kit to install properly; but after reading your post, it looks like they are just miscellaneous things that you thought would improve the kit further. Were the welds and flashing just cosmetic items, or were you clearing up things that decreased flow restrictions? Were the sealed bearings just a subaru part or is this something special that you fitted? Has the Rimmer kit changed at all from the kit you initially installed?

Now you have definitely spiked my interest in the Rimmer kit. Too bad I was unable to ask all my questions in person. Now I just need to accelerate my finances. I guess it's time for that second job I have been planning

Jon
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Old 01-08-2001, 07:34 PM   #33
pooreman
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Anyone want to see if Rimmer would show up at the Rally in KC??? I would like to speak to them first hand.

Also--"ARG" are you going to be? I would like to hookup and talk/scope that engine--maybe a test ride if not a problem.

Chad

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Old 01-09-2001, 12:14 AM   #34
ARG
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Rally Blue & Supercharged

Thumbs up

Hey Stimpy and Poorman. As far as the bearings, the Rimmer kit came with "open" roller bearings for the idler pully plate. The bearings quickly filled up with road funk and burned up. I replaced the bearings with sealed units and made caps for them to keep out road debris. As far as the castings are concerned, they were pretty "rough" and had to be cleaned up. I flared all the pipe connections for a smoother air transition throughout the intire intake track. I also changed the mounting bolts that they supplied because they begain to rust. I also painted everything with high temp paint. I'm pretty anal when it comes to my car. If it isn't perfect, I won't drive it. I spent a lot of time on the kit finding little ways to make it work more efficiently and last longer. All in all, it isn't a bad kit. It is light years ahead of the first prototype, which had the Eaton unit and the hood "bulge". One thing that I must tell you. It is not as fast as some other turbo Subaru's that I have ridden in, but the other turbo Subaru's are not runnig right now for whatever reason. My car does not "push" the performance envelope. The Rimmer kit is conservative and does not stress engine components like some of the other turbo kits on the market. I run 8psi of boost. The Autorotor that I have is capable of 10psi max before it becomes inefficient. Before I change the pulley size to run 10psi, I must install water injection; or a secondary fuel injector. I personally would not run more than 10 psi on a bone stock EJ25. Others have, but you will sacrifice engine durability and realiability. If you are going to spend that much money to go fast, why not be a little conservative? In other words, don't be a boost junkie. If you want a 350hp EJ25, then you WILL have to beef up the internals (forged rods,forged crank, forged pistons, heavy duty wrist pins and connecting rod bolts)and have the crank balanced and have all rod/piston assemblies balanced.

Regards, ARG

[This message has been edited by ARG (edited January 10, 2001).]
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Old 01-09-2001, 01:23 AM   #35
subarumantoo
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The above picture is the CAPA centrifugal super-charger for the Liberty 2.2 liter. It is a very proffesional installation, except for the missing intercooler! Does any one know if the brackets and pulleys would work on a 2.5RS?
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Old 01-09-2001, 01:44 AM   #36
Tony
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Stimpy,
I replied to your email.

Interesting packaging. That's one I totally missed in my research. Although the S/C placement isn't unusual. The plumbing is what gets me.

My plan was to mount a centrifical S/C near the rear-passenger side of the engine compartment driven by a shaft that is connected to a pully up front. This would mean minimal plumbing between the airbox and aftercooler (top mount air-to-air).

From my research and with talking to the head import guy at Vortech I know no one is making a S/C kit right now. TRI says they have one in the works but they said it was delayed since they were busy. They were also going to use a Vortech unit (dunno which one). Rally Knight was supposedly going to release a mega horsepower CARB legal kit the beginning of Jan but I haven't heard anything from them.

Tony
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Old 01-09-2001, 01:51 AM   #37
Tony
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I thought this was the CAPA kit. The Force-one kit does use an Eaton but it's not mounted directly to the intake manifold like the CAPA does. If CAPA designed this kit and sells through force-one please excuse me, I'm piecing this all together third hand.

Looking at both these last pictures brings up another reason I don't like the positive displacement units like the Eaton, you have to mount the TB before the S/C. So you have crazy plumbing like the force-one kit or you have to mount it right to the engine and fabricate your own intake manifold.

Tony
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Old 01-09-2001, 06:18 AM   #38
subarumantoo
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I have been interested in the Rimmer kit since I bought my car. I have e-mailed him several times but he simply won't reply. I like the kit but I am very skeptical about sending this guy money.....
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Old 01-09-2001, 10:31 AM   #39
stimpy
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Thanks for all the info ARG.
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Old 01-09-2001, 10:55 AM   #40
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Im not much of a Jackson Racing fan anyways. If i had the cash i would talk to Vortech. Thier superchargers are more efficient and can make LOTS more h.p. Imagine a 450 h.p. torque monster. True you would have to do the same engine/tranny modifications for boost, but it would happen within a lower rpm range. As far as racing does you could make up for poor shifting comming out of corners easier, and in drag the launch would be monsterous.

Josh
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Old 01-10-2001, 07:30 AM   #41
subarumantoo
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I think that a centrifugal super-charger will make more horsepower than a screw or roots type blower but won't have the same drivability and low-end torque. I want low-end torque more than I want high RPM horsepower.
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Old 01-11-2001, 01:55 AM   #42
stimpy
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The centrifigal supercharger is going to be, performance wise, half way in between a roots/eaton blower and a turbo. It is going to have more instant and constant boost, but its going to learn more towards being rpm specific. Thats the way I understand it anyways. A small turbo, rimmer charger, vortech charger, any of those will be great for autox so I'm just hunting out which would I think will be the funnest and most economical.
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Old 01-11-2001, 04:56 PM   #43
subarumantoo
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I noticed that the Rimmer kit moves the throttle body to BEFORE the super-charger. This is the correct configuration. I hadn't noticed this before. I have been trying to e-mail Rimmer for several days now but I still have not received a reply. I am so interested in this kit still!!
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Old 01-11-2001, 04:58 PM   #44
stimpy
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Whats the technical reasoning behind doing a relocation of the TB?
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Old 01-11-2001, 05:05 PM   #45
subarumantoo
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Lets say you leave the throttle body where it is and put the Autorotor super-charger on the car. Going down the freeway at cruise (throttle plate barely open)with 3200 RPM you would be making 7 or 8 pounds of boost against the throttle body. That puts undue stress on the super-charger, heats the intake stream excesivly, reduces fuel mileage, and could make your BOV keep poping open. The only advantage is unreal throttle response.
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Old 01-12-2001, 04:42 PM   #46
stimpy
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Thumbs up

Gotcha!

I would assume this would be the case if I were to integrate a Vortech charger onto a Subie, right?

[EDIT] or perhaps is that what this accomplishes? "High-efficiency bypass valve provides quiet, surge-free compressor operation "

[This message has been edited by stimpy (edited January 12, 2001).]
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Old 01-12-2001, 05:43 PM   #47
Tony
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You only need to relocate the TB on a positive displacement SC (Eaton, Autorotor, etc.). Centrifical types (Vortech, Paxton, etc.) are just like half a turbo and can be mounted before the TB. This is why a centrifical SC is so much easier to package.

Tony
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Old 01-12-2001, 05:53 PM   #48
stimpy
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That makes sense Tony, thanks.

As for the "High-efficiency bypass valve provides quiet, surge-free compressor operation", I think thats just the hi-tech name for a BOV. Makes sense since this more resembles a turbo, than a supercharger.



Blue "thing" on the left side of the image.
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