|
|
|
|
Thread Tools | Display Modes |
04-25-2002, 01:26 AM | #1 |
Scooby Newbie
Member#: 17945
Join Date: Apr 2002
Location: Iowa
Vehicle:2002 Impreza RS Aspen White |
Turbo vs N/A?
What are the benefits of turbo vs N/A on my 2002 RS?
* Registered users of the site do not see these ads.
|
04-25-2002, 01:42 AM | #2 |
Gone... But not forgotten
Member#: 92
Join Date: Jul 1999
Location: East Detroit, Michigan
Vehicle:1999 2.5RS Coupe Blueish Kind of |
You could spend at least $2000 on N/A mods (intake, cams, headers, cat back exhaust, pullys, high flow cat, lightweight flywheel) and still not catch a WRX, But it will be better on your pocketbook in the long run. If you go turbo and do it right, you will spend at least $4000 (turbo kit, SAFC, ITC, J&S, performance clutch) and will beat any stock WRX. However, if you were considering turbo all along, you should have just bought a WRX. The WRX has much more potential. Just my $.02
|
04-25-2002, 01:42 AM | #3 |
Scooby Specialist
Member#: 8219
Join Date: Jul 2001
Location: Burnaby, BC, Canada
Vehicle:2002 Impreza RS Blue Ridge Pearl |
i'd like to know also, but i'd like to add a Supercharger to that
hmm with Turbo and SC, we'd probably get more power but might hurt our engine?... not made for this kind of power?... i'm not sure.. |
04-25-2002, 01:48 AM | #4 | |
Gone... But not forgotten
Member#: 92
Join Date: Jul 1999
Location: East Detroit, Michigan
Vehicle:1999 2.5RS Coupe Blueish Kind of |
Quote:
There are many happy turbo'd 2.5RS's running as daily drivers. It's all about the engine management and tuning. You have to know what you're doing. The 2.5L engine can only take so much boost in it's stock form. Know what that level is and control detonation and you'll be okay. |
|
04-25-2002, 03:28 AM | #5 |
Scooby Guru
Member#: 6551
Join Date: May 2001
Chapter/Region:
MWSOC
Location: Carol Stream, IL
Vehicle:'01 GC8 Dinged STM '09 Concours 14 ABS Black |
FWIW a 227HP NA will be slower then a 227HP FI car...want to know why?? because a FI car has overcome volumetric effiency(Spelling??)
jeremy |
04-25-2002, 03:52 AM | #6 |
Scooby Specialist
Member#: 3115
Join Date: Dec 2000
Chapter/Region:
AKIC
Location: Anchorage,AK USA
Vehicle:2002 Impreza 2.5RS Silver |
Turboed engines are more efficient as they do not have to waste as much energy trying to suck air in. Also with boost you can tune it so it creates a fat wide band of useable horse power. Not the peaky NA kind. (Broad generalization, but basiclly yeah. )
RawCode |
04-25-2002, 09:03 AM | #7 |
Scooby Newbie
Member#: 4973
Join Date: Mar 2001
Location: Newark,NJ,USA
Vehicle:2000 2.5 RS Blue |
as far as i know, you cant add both SC and turbo. back to the topic:
true if you wanted a turbo you should of purchased a WRX, the 2.5L engines arent teh greatest for turbos. me im going to NA my car, then when i smoke someone in a WRX, they can see my sticker "all motor". also if you couldnt afford a WRX and want to turbo your 2.5RS, you werent thinking right. peace out |
04-25-2002, 09:04 AM | #8 |
Scooby Specialist
Member#: 5030
Join Date: Mar 2001
Chapter/Region:
MAIC
Location: Martinsburg, WV, USA
Vehicle:1999 Legacy 2.5GT 19 Audi RS3, 13 Armada |
Supercharging is a great way to do Forced Induction. It gets a lot of downplay on these boards because of experiences with Rick Rimmer's crappy kit. Granted Superchargers aren't as efficient as turbochargers, but supercharging is a whole different car when compared to a turbocharged car.
Personally I feel the cheapest route to great power is turbocharging. |
04-25-2002, 10:17 AM | #9 |
Scooby Specialist
Member#: 3717
Join Date: Jan 2001
Chapter/Region:
MAIC
Location: Army of the Potomac
Vehicle:2011 Swagger Wagon bikes with pedals |
I don't understand why somebody would want to turbocharge a 2002 RS. The WRX is available in that body style, so why not use what's available? Aside from a engine prepped from the factory for a turbo, the suspension is better, the brakes are better, some interior pieces are better. It just doesn't make sense to try and do what Subaru has already done for you.
On a GC8, however, there is no factory option, so aftermarket turbos are obviously the way to go. Regarding your question, though, if you really want a turbo, make sure you thuroughly read the aftermarket turbo section of this site. The problems that some of those guys are having and the thousands upon thousands of dollars they are spending is enough to make anybody think twice. At this point, I think the only way I'll go forced induction is if a decent SC kit comes out. Otherwise I'll play it safe in the world of N/A. |
04-25-2002, 10:20 AM | #10 | |
Scooby Specialist
Member#: 3717
Join Date: Jan 2001
Chapter/Region:
MAIC
Location: Army of the Potomac
Vehicle:2011 Swagger Wagon bikes with pedals |
Quote:
|
|
04-25-2002, 10:21 AM | #11 |
Scooby Specialist
Member#: 13485
Join Date: Dec 2001
Chapter/Region:
NESIC
Location: Denver, CO
Vehicle:OMG EJ22T FTW |
I disagree about WRXs having more potential. The great thing about the 2.5RS is it has low end torque, and plenty to spare. Combine that with the top end power from a turbo, you have a beast that will most likely beat any WRX out there, even with minimal boost. Our engine produces gobs of power low down, and the WRX has very little, making the WRX's almost only power be the turbo. Don't get me wrong, WRXs are nice, but I'd much rather have a 2.5RS-T.
|
04-25-2002, 10:29 AM | #12 |
Scooby Specialist
Member#: 3717
Join Date: Jan 2001
Chapter/Region:
MAIC
Location: Army of the Potomac
Vehicle:2011 Swagger Wagon bikes with pedals |
Well, that pretty much boils down to personal preference and driving style. Still, dollar for dollar, a WRX is a much safer option per hp produced than a RS-T (until, perhaps, you get into astronomical amounts of power).
|
04-25-2002, 11:58 AM | #13 |
Scooby Specialist
Member#: 5030
Join Date: Mar 2001
Chapter/Region:
MAIC
Location: Martinsburg, WV, USA
Vehicle:1999 Legacy 2.5GT 19 Audi RS3, 13 Armada |
I have to say it all depends on how much money you want to spend and what your power goals are. If your goal is a moderate 300hp to the wheels I would have to say the cheapest way to get there in my own opinion is by using the EJ20 WRX engine. I got a ride in a WRX that dynoed at 278 to the wheels. He only spent $5000 in mods and labor to get there. However the downfall is he spent more to buy his car. So a $7000-$9000 Turbo setup/Exhaust/Engine management/Clutch-Flywheel doesn't make the total cost of the car come out more expensive then what Reggie paid for his modded WRX.
So in a twisted way it is up to personal preference. Would you like your turbo with round headlights or Classic GC8 style? Now in the long run when it comes to peak power potential with a complet disregard for money I feel that both engines would come out fairly equel. You may say the EJ25 has more displacement. Well you could always bore and stroke the EJ20. Both engines cylinder head will need stiffer springs new valves and a good port and polish. Both engines could benefit from an intake manifold redesign. Both engines definitely need forged pistons and rods. |
04-25-2002, 12:05 PM | #14 |
Scooby Specialist
Member#: 5030
Join Date: Mar 2001
Chapter/Region:
MAIC
Location: Martinsburg, WV, USA
Vehicle:1999 Legacy 2.5GT 19 Audi RS3, 13 Armada |
I have to say it all depends on how much money you want to spend and what your power goals are. If your goal is a moderate 300hp to the wheels I would have to say the cheapest way to get there in my own opinion is by using the EJ20 WRX engine. I got a ride in a WRX that dynoed at 278 to the wheels. He only spent $5000 in mods and labor to get there. However the downfall is he spent more to buy his car. So a $7000-$9000 Turbo setup/Exhaust/Engine management/Clutch-Flywheel doesn't make the total cost of the car come out more expensive then what Reggie paid for his modded WRX.
So in a twisted way it is up to personal preference. Would you like your turbo with round headlights or Classic GC8 style? Now in the long run when it comes to peak power potential with a complet disregard for money I feel that both engines would come out fairly equel. You may say the EJ25 has more displacement. Well you could always bore and stroke the EJ20. Both engines cylinder head will need stiffer springs new valves and a good port and polish. Both engines could benefit from an intake manifold redesign. Both engines definitely need forged pistons and rods. |
04-25-2002, 02:01 PM | #15 |
Scooby Specialist
Member#: 8219
Join Date: Jul 2001
Location: Burnaby, BC, Canada
Vehicle:2002 Impreza RS Blue Ridge Pearl |
what i meant to say is the Turbo VS the SC
here is an upcoming SC kit link... http://www.rs25.com/Forums/showthrea...s=&threadid=42 read page 21 for a "summing it all up" post... http://www.rs25.com/Forums/showthrea...&pagenumber=21 also, i've heard that COBB is making a SC kit also. http://www.wrxforum.com/cgi-bin/ulti...c;f=4;t=000003 and the reason i'm considering to Turbo or SC my MY02 RS is that i only paid 25K cnd for it where as i would have had to pay around 37K cnd for a WRX. and then adding that 5K for the WRX i would have to had paid 45K cnd for the modding of my car which i pay for myself !! so yeah, a RS-T is the 'cheaper' route for me to take, but i'm doing my research as well. i've heard that the Rimmer kits were bad so i opted out SC until i heard of the two kits i saw (posted above)... what i'd like to know is why are SC kits always looked down upon when compared to a Turbo? is it really the better way to go (the turbo) or just that there was never a good SC kit that was developed for the EJ25? |
04-25-2002, 02:28 PM | #16 |
Scooby Specialist
Member#: 3717
Join Date: Jan 2001
Chapter/Region:
MAIC
Location: Army of the Potomac
Vehicle:2011 Swagger Wagon bikes with pedals |
Oh damn! Cobb is coming out with a SC kit, too?
Wow. I can't wait until I can afford to slap one of these puppie on my car. Hopefully it comes in at the price they anticipate. |
04-25-2002, 05:22 PM | #17 | |
Subaru Bounty Hunter
Moderator Member#: 7131
Join Date: Jun 2001
Chapter/Region:
TXIC
Location: Houston - Downtown Julie Brown
Vehicle:2015 Outback - Croc Dundee Edition Ice Silver |
Quote:
|
|
04-25-2002, 05:33 PM | #18 |
Scooby Specialist
Member#: 11778
Join Date: Oct 2001
Chapter/Region:
MWSOC
Location: Illinois
Vehicle:1980 VWRabbit Diesel w/AAZ Swap |
you could spend 2000 bucks on your car and get it near WRX speed.. (stock WRX speed) now if the WRX guy put 2g's into his car... your outta luck.
|
04-25-2002, 11:07 PM | #19 |
Scooby Newbie
Member#: 17945
Join Date: Apr 2002
Location: Iowa
Vehicle:2002 Impreza RS Aspen White |
What I've got
I'm not looking to race anyone or compare myself to the WRX or anyone else.
I just want some more power out of my car and if the turbo is feasible. From what I hear, doing your research and not overdoing things and my baby will be fine and running smoothly? |
04-26-2002, 01:21 AM | #20 |
Scooby Specialist
Member#: 11778
Join Date: Oct 2001
Chapter/Region:
MWSOC
Location: Illinois
Vehicle:1980 VWRabbit Diesel w/AAZ Swap |
turbo should be the last thing you do to a N/A engine. build it up strong then at the end when all other options are done. you turbo charge the M***********.
|
04-26-2002, 04:05 AM | #21 | |
Scooby Specialist
Member#: 8219
Join Date: Jul 2001
Location: Burnaby, BC, Canada
Vehicle:2002 Impreza RS Blue Ridge Pearl |
Quote:
Danz: well i'm just thinking of what you are saying regards to the higher displacement and SC. i gues you are correct. however for my purposes (which is strictly AutoCrossing - Solo 2)... i would believe the low end is what i want? do you agree with that?... or still believe the turbo is more effienct. (if so, please pursuade me heh ) |
|
04-26-2002, 08:21 AM | #22 | |
Subaru Bounty Hunter
Moderator Member#: 7131
Join Date: Jun 2001
Chapter/Region:
TXIC
Location: Houston - Downtown Julie Brown
Vehicle:2015 Outback - Croc Dundee Edition Ice Silver |
Quote:
|
|
04-26-2002, 09:28 AM | #23 |
Scooby Guru
Member#: 5126
Join Date: Mar 2001
Location: www.nugateway.com
|
If you guyz are interested in a supercharger...
read this link....(very very very long) http://www.rs25.com/Forums/showthread.php?threadid=42 |
04-26-2002, 11:50 AM | #24 |
Scooby Newbie
Member#: 2369
Join Date: Sep 2000
Location: El Paso,TX
Vehicle:2003 Cooper S Chilli Red |
(intake, cams, headers, cat back exhaust, pullys, high flow cat, lightweight flywheel) with some nitrous..
|
04-26-2002, 01:45 PM | #25 | |
Scooby Specialist
Member#: 6271
Join Date: May 2001
Location: San Jose
Vehicle:2001 2.5RSTi 2007 Legacy Spec B |
Quote:
Just be careful, you don't build up the NA engine with NA only parts, if you plan to go Force Induction. There are parts which are strictly for high performance NA engines and strictly for Turbo engines. If you get really aggressive NA cams, you'll probably just be wasting money cuz that won't help you much once you go turbo. So, back to NA vs Turbo... If you have a HP goal, with NA you'd have to rev the hell out of your engine to get that much power. What you get with turbo is tons more torque, and you don't have to rev that high to get your HP goal. Either way, if you want serious power both ways, it'll get real expensive real fast. |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
MCR Skyline R35 GTR vs Spoon NSX-R Turbo vs RE Amemiya RX7 | dc5guru | Non-Subaru News & Rumors | 9 | 12-17-2008 09:38 AM |
Gtr Vs. Lp460 Vs. 911 Turbo Vs. Gallarado Sl Vs. Exige | turbotimein253 | Non-Subaru News & Rumors | 17 | 04-15-2008 04:56 PM |
Turbo vs CSC vs RSC vs...etc | mhoward1 | Off-Topic | 12 | 08-15-2006 12:42 PM |
Turbo vs CSC vs RSC vs...etc | mhoward1 | Non-Subaru News & Rumors | 0 | 08-15-2006 11:14 AM |
('93-'01) Supra TT vs MR2 Turbo vs 2.5RS | onikageka | Impreza Forum | 9 | 06-12-2002 12:16 AM |