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Howdy all. I'm in the process of buying a 2001 2.5rs that's had a good amount of mods done to it. Car has 22k miles.

Ludespeed NA to Single conversion
Stage 3 clutch
Hardened 2nd gear
Link Plus (tuned)
Pulleys
Tanabe exhaust

Theres a bunch more mods done. Basically a BPU plus the Turbo conv. and suspension and drivetrain upgrades. All of the upgrades were performed by the owner. Owner claims to have an extensive knowledge of auto mechanics. All upgrades are fully documented step by step with pictures. Car is in awesome condition. I basically want to know what im getting myself into. Owner claims less than 2k on turbo upgrade an is running 6.5psi. Should I get a compression test run? Car runs and drives great. (of course :D ) What type of maintenence am I going to be looking at? Before I go through with getting this car I want to make sure this is the "right" thing.

Thanks a ton,

Oops
 

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General pain in the ass
98 Superu Impreza 2.5 rs...
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i am no specialist, but from what i've heard stock engine can handle 7 psi, so should not be a problem there. You might need to use only 92 instead of subaru recomended 87, might have to change oil on time with syntetic.

What i would do is take the car from the owner for 1 day, sign some sort of paper if that's what the owner wants. Take it to dealer for compresseion testing, then take it to some local performance shop, pay them 50$ (usually can be arranged at the counter) and have them check if they see any thing fucked up. Drive the car without stereo, so you can hear any problems. Have them lift the car, and look for oil leaks, dents or crask underbody.

Maybe after sing some paper with the seller stating that if you find any major mechanical problems or if the car breaks within say 1k miles, or 4 days.. you'll get full refund.

cant think of anything else, but whatever you're spending is prolly a lot so make sure you dont get screwed.
 

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General pain in the ass
98 Superu Impreza 2.5 rs...
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i play with it here and there, the only thing i know it does is advances your timing giving you a couple free horsies. I read a study a while back that something like 90% of cars showed better performance numbers with higher octane, but less mpg.
 

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2000 Subaru Impreza RS coupe -
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RotarFreak said:
i play with it here and there, the only thing i know it does is advances your timing giving you a couple free horsies. I read a study a while back that something like 90% of cars showed better performance numbers with higher octane, but less mpg.
I've always heard that putting in a higher octane than necessary for the car does absolutely nothing.
 

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General pain in the ass
98 Superu Impreza 2.5 rs...
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Zeorymer said:
I've always heard that putting in a higher octane than necessary for the car does absolutely nothing.
you heard wrong:stupid:
 

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oh really?? :stupid:

http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm

Are you tempted to buy a high octane gasoline for your car because you want to improve its performance? If so, take note: the recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit. It won’t make your car perform better, go faster, get better mileage or run cleaner. Your best bet: listen to your owner’s manual
who's the dummy now? :lol:
 

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General pain in the ass
98 Superu Impreza 2.5 rs...
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This is ONE

...Our low-tech Ram managed to eke out a few extra dyno ponies on premium fuel, but at the track its performance was virtually identical. The Mustang's knock sensors and EEC-V computer found 2 hp more on the dyno and shaved a more impressive 0.3 second off its quarter-mile time at the track. The Accord took a tiny step backward in power (minus 2.6 percent) and performance (minus 1.5 percent) on premium fuel, a phenomenon for which none of the experts we consulted could offer an explanation except to posit that the results may fall within normal test-to-test variability. This, of course, may also be the case for the gains of similar magnitude realized by the Ram and Mustan...

i am looking for more
 

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General pain in the ass
98 Superu Impreza 2.5 rs...
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not really on topic but still cool

any way, these links show that higher octane prevents pre detonation (knock) and can increase HP, which was my original point any how. Your page does not offer any solid ground just kinda says dont do it cause i said so. :rolleyes:
i cant find the exact page i read a while ago, link might have been on formal i-club, i feel like getting some food now, but later i might look for it there.
 

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well, as they are hijacking your thread, i'll get back on topic.

before anything, do you have extensive knowledge of auto mechanics. you are getting a turbocharged car that was sorta meant to be N/A. after a period of time, something will go wrong with the car. as for maintence, expect to do everything twice as soon. say oil change is every 3,000 miles. with turbocharged, probably gotta oil change somewhere from 1,500 to 2,000 miles. oh, and you might have to start listening to knocks, and be able to check your spark plugs often to see how the car is running. and probably going to stick with higher octane, like 91 and up. hope this helps. one reason why i'm not turbocharge is because if something goes wrong, i wouldn't know what it is. i'm pretty sure it's fun as hell to have a TC 2.5RS, but i'm just not ready yet.
 

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General pain in the ass
98 Superu Impreza 2.5 rs...
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oh yea dude, i remembered something, stock 2.5rs cant handle more then about 7 psi, so I would find out how much psi the owner before you was running on regular bases, and if he was doing something like 20 psi runs while racing. Things like that could seriously screw you over. Also find what mods if any he had that he might have taken off prior to sale (good example :nos)
 

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oh yea, do a compression test. and btw, what is the owner's reason of selling?
 
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