Welcome to the North American Subaru Impreza Owners Club Monday September 24, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Archives > NASIOC Archives > General Forum Archive

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 06-15-2000, 09:10 AM   #1
Scooby Newbie
Member#: 1576
Join Date: Jun 2000
Location: Brandon, Florida
2000 2.5RS

Exclamation 2.5L & Supercharger: Factory?

The STX brings up and interesting question!

I was reading up on that particular vehicle in my Autoweek. I was suprised when I saw that Subaru had mated a Supercharger to the 2.5L engine! Yes, a factory effort to improve the 2.5L.

Of course, I want to my local Subaru dealership and confronted the people at Subaru. I told them I wanted one ordered if it came out, I have the same engine so it would only make sense! He quickly told me that the electronics and compression will be totally different and therefore I couldn't get it and have it under warranty.

What do you guys think? Have any of you asked the same questions? Did you get the same response?


Formula1 is offline  
Old 06-15-2000, 09:17 AM   #2
Scooby Specialist
Member#: 1339
Join Date: Apr 2000
Location: St. Louis, MO, USA

hmm... I haven't heard anything about that, but could you possibly post some of the article? Or maybe a link? Or tell me what month!!

wolve80 is offline  
Old 06-15-2000, 09:17 AM   #3
Rick Buckner
Scooby Specialist
Member#: 320
Join Date: Sep 1999
Location: Charleston, WV, US
1999 Impreza 2.5


It's pretty cool that your parts guy knew anything about the supercharger.

I think that it should be covered under a warranty. Since it is a subaru supercharger. If the dealership installed it, the warranty should be like Toyota and their TRD packages.

The dealerships around here don't know a thing about ideas. Just what is sitting in front of them.

Rick http://roads.to/ricksrides
Rick Buckner is offline  
Old 06-15-2000, 09:59 AM   #4
Scooby Specialist
Member#: 1209
Join Date: Apr 2000
Location: Wheaton, MD

These are the STX specs off the SOA Home Page-

I think Eaton superchargers are pretty popular- like the Benz SLK.

2.5-liter SOHC 4-cylinder boxer
engine with Eaton supercharger and
Subaru B4 intercooler
230 horsepower @ 5,600 rpm
210 lbs.-ft. of torque @ 4,000 rpm
55.5" bed extends to 76.0" with
Subaru-designed Switchback
8.5 inches minimum ground
clearance with low step-in height
Heavy-duty 4-wheel independent
Full-time All-Wheel Drive
Dual-range 5-speed transmission
17" x 7" Enkei wheels
225x55 R 17 Yokohama AVS S/T
Super-large power fabric sunroof
Power rear window for open-air feel
Solar Flare orange/Moondust silver
Roof rack
Functional step rails
Roof-mounted PIAA off-road lights
In-bumper pencil-beam fog lights
McIntosh Audio sound system with
three amplifiers, seven speakers and
650 watts of total system power ...
not to mention very cool looking VU
In-bed 110v inverter plus two 12v
power outlets
Durable Sherwin-Williams ZolatoneŽ
bed finish
Roof spoiler with built-in CHMSL and
cargo bed light
Under-bed compartment holds all
kinds of stuff, like ice and drinks for
tailgate parties.
Custom-made exhaust system,
including equal-length headers by
SVI and Bosal/SVI muffler with single
large tailpipe tip
Lower body cladding looks cool and
fends off rock chips.
Pivoting license plate holder keeps
plate visible when the tailgate is
Motorcycle-style gas cap
B4 performance-style front bucket
Leather interior
Roof-mounted swing-up rear
Eight cargo tie-down bars
Two lockable rear storage
gumball is offline  
Old 06-15-2000, 10:05 AM   #5
Scooby Newbie
Member#: 1507
Join Date: May 2000
Location: Clover, SC
2003 Tiburon
Rally Red


If Subaru puts it in anything from the factory, we can be guaranteed that several of our tuner companies will make them available and tell us how to install them.
ChaosThom is offline  
Old 06-15-2000, 08:18 PM   #6
Scooby Specialist
Member#: 133
Join Date: Aug 1999
Chapter/Region: NWIC
Location: Burlington, WA


I think you forgot one thing to consider. The clearance under the hood to get the eaton blower in. Rimmer couldn't get it to fit and you had to use a carbon fiber buble mounted to the hood to clear the pulley. The STX has a Legacy style hood. The RSK intercooler also sits up at a steeper angle then what you would get from Spearco. It would be nice if it fit but with an already cramped engine bay it isn't likely. I also doubt they changed the compression ratio. The STX would have more weight to lug around and need the torque from the higher compression. Of course this is just all talk since it isn't likely to ever be released as seen on the prototype. Kind of like the orignal SST (MY99-00) which became the current Eclipse. Man did they ever water that thing down!
N/A is offline  
Old 06-15-2000, 08:30 PM   #7
Scooby Specialist
Member#: 252
Join Date: Sep 1999
Location: San Antonio, TX
2001 Arctic White
Camaro SS #1800


Actually, Rimmer did manage to fit an Eaton Blower under the RS hood without the teardrop thing; it was labled the sidewinder kit because the blower sat on the side of the motor instead of on top. The STX does the same thing. You could easily adapt it to the RS engine.
The reason I don't think SOA would warrenty the engine if you put the same blower on is because I'm sure the engines are not identicle. Rimmer had huge problems with crushing pistons and fuel delivery (amongst other problems). It would only make sense that SOA would have lowered the compression and changed the fuel and timing maps for the STX. Our 2.5 is designed to run N/A; the STX 2.5 is designed to run with a blower. To me, at least, it makes sense that they wouldn't warrenty the RS engine if you mated the blower to it. The blower would be warrentied, but not the engine.
Strepto is offline  
Old 06-15-2000, 08:39 PM   #8
ImprezaRS dot com
over boosted again
Member#: 1458
Join Date: May 2000
Chapter/Region: RMIC
Location: Colorado Springs CO USA
2017 WRX Limited
2015 Forester XT, Tribeca


I went to visit Rimmer Superchargers today, and Rick was out of town, but I spoke with Brandon there who was was really nice. Brandon was finishing putting an Eaton blower on what appeared to be a Porche 944 (I could always be wrong).

Asked them why they aren't here on iClub more. Brandon said "with having to reply to 150 emails a day, put in orders and install parts, and do tech support - then if I spent time on iClub too, my girlfirend and dog will just walk out the door and I'll never see them again."

We discussed how I am the only person interested in a stage one SuperCharger (without InterCooler) to cut costs. At 6,000 feet above sea-level we could do 6psi without intercooler, but it would run almost 10 psi at sea-level and start to detonate quickly (it would increase to 9 psi by my calculations).

So, they don't want to make a stage one when it doesn't really save money in the long run. Makes sense. $2,695 is how much he would sell a 6 psi stage one to me, if I tap the oil pan for the oil return myself, and install it myself. Then I'd either have to buy an IC or a smaller pully and 1" shorter belt if I wanted to go to a lower altitude.

JC Sports lists their 6psi turbo with IC for $2,995 and it looks like you get to keep the stock cats for that.

I like the increase in torque with a SC, but don't like the variability in pressures with altitude changes. Decisions decisions...

Larry www.ImprezaRS.com
ImprezaRS dot com is offline  
Old 06-16-2000, 05:12 AM   #9
Bob O
Scooby Specialist
Member#: 1502
Join Date: May 2000
Chapter/Region: MAIC
Location: Felton, PA, USA
2000 2.5RS & SV1kS


They day I saw that the STx would have a supercharged 2.5 I fired off an email to SOA about how we should have this for our cars. I even made allusions to how TRD supplies S/C for several of there cars. The reply I got was that my comments would be forwarded to Product Planning. Sounds like the round file to me. Someone should knee-cap SOA's marketing department. I can hear their meetings now,"No americans don't want fast nimble cars, they want big fat SUV's and they really want underpowered compact cars. They'll never figure out that the other countries have the good stuff". Idiots.

Bob O
Bob O is offline  
Old 06-16-2000, 09:33 AM   #10
Patrick L
Scooby Specialist
Member#: 634
Join Date: Dec 1999
Chapter/Region: TXIC
Location: Tulsa, OK
2000 Impreza 2.5RS
Becasue ITS racecar


Someone said something about hood clearance. It nothing like the Rimmer Kit.
The S/C is place where the powersteering pump would be and the power steering pump is moved. So the will be no hood clearance problems. Goto
and look at the picture of the engine compartment and you shall see.
As for the warrenty, yes they may not cover the engine but if you were to lower the compression like they did on the STX enigne. I would say YES if you had them do the install and lowered the compression with new pistons.
Patrick L is offline  
Old 06-16-2000, 09:39 AM   #11
Scooby Newbie
Member#: 1267
Join Date: Apr 2000
Location: Charlotte, NC USA

Actully,the STx's supercharger was done by Specialized Vehicles, Inc. Troy, MI. Eaton builds the supercharger and the intercooler is from the B4.

[This message has been edited by uktena (edited June 16, 2000).]
uktena is offline  
Old 06-16-2000, 10:20 AM   #12
Homicidal Maniac
Member#: 1612
Join Date: Jun 2000
Location: Austin, TX
2008 STI


It looks suspiciously like it has a completely redone intake manifold as well?
This could end up being so expensive to equip, it wouldn't be worth it.
stimpy is offline  

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
crawford 2.5l s2 pippen Subaru Conversions 3 06-02-2010 07:17 PM
Built 2.5L & TwinScroll... Need some guidence! chrisarella Built Motor Discussion 41 05-22-2009 01:18 PM
(pa) Cobb Ap v2 2.5l & Prodrive bcs [email protected] Engine/Power/Exhaust 16 11-28-2008 01:46 PM
exterior dimensions of 2.2l & 2.5l engine & manual transmissions needed. JW2 Newbies & FAQs 0 05-25-2008 02:09 PM
FS: K&N filter for NA 2.5L & Hella H4 bulbs randolph-rs Private 'For Sale' Classifieds 0 12-21-2003 06:11 PM

All times are GMT -4. The time now is 10:01 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.