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Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
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View Poll Results: Do you agree with Certified Mitsubish tech to advoid warrentee voids.
I think it\'s a great Idea!
12
12.77%
This is the retarded. We dont\' even have the high tech ACD and/or AYC so why?
43
45.74%
I don\'t mind spending the extra cash on dealer since i don\'t work on my own car anyways.
14
14.89%
I don\'t care
25
26.60%
Voters: 94. You may not vote on this poll

Do our cars need to be serviced by Mitsubishi!!!

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Old Jan 15, 2003 | 12:20 PM
  #16  
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gtr
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Is it possible to have TGV and variable valvetrain on the sti? I don't know but i'm guessing it does have a precat.
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Old Jan 15, 2003 | 12:22 PM
  #17  
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From: Austin, TX
Originally posted by gtr
The evo's have the turbo's right off the hot exhaust. The cat is after the turbo. This means less pressure drop for the turbo and easier to pass emissions and less lag "especiall with twin scroll"

Someone else here might be more knowlegable on this issue.
You bring up a good point about the twin scroll turbo. Since the Evo has one, there probably isn't a cat pre-turbo. Otherwise you'd need two cats (pre-turbo), one for each pair of cylinders since the exhaust isn't common until post-turbo.

With stringent US emissions, there's probably 2 cats, then, both post-turbo.
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Old Jan 15, 2003 | 12:46 PM
  #18  
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From: Minneapolis
Originally posted by iodine23


You bring up a good point about the twin scroll turbo. Since the Evo has one, there probably isn't a cat pre-turbo. Otherwise you'd need two cats (pre-turbo), one for each pair of cylinders since the exhaust isn't common until post-turbo.

With stringent US emissions, there's probably 2 cats, then, both post-turbo.
that would make the most sence, as most turbo I4s and rotarys have 2 cats, one in the downpipe, and the other in the "Y" or midsection pipe. Seems that only the flat and "V" engines have the 3 cats because they have a mess of headers to deal with.
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Old Jan 15, 2003 | 01:19 PM
  #19  
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gtr
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Ok, who thought it was a great idea?
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Old Jan 15, 2003 | 01:30 PM
  #20  
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Yeah really. A great idea is free service for the life of the warentee and any outside work voids the warentee. A bad idea is you have to have work done at our overpriced dealership in order to keep the warentee you bought.

My 2 cents
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Old Jan 15, 2003 | 01:49 PM
  #21  
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From: DFW, Texas
Originally posted by gtr
Is it possible to have TGV and variable valvetrain on the sti? I don't know but i'm guessing it does have a precat.
The new USDM STI will have the TVG (Not TGV) and Variable Valvestrain head. The JDM and EDM STI doesn't come equipe with a cat in the uppipe(cat-less uppipe). We'll just have to wait to see if the USDM STI will have a pre-cat.
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Old Jan 15, 2003 | 03:40 PM
  #22  
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The TGV is a train in europe.
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Old Jan 16, 2003 | 01:51 AM
  #23  
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From: Los Angeles, CA.
TGV = Train Grande Vitesse (or Bullet Train)

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Old Jan 16, 2003 | 08:17 AM
  #24  
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From: boonies
http://www.new-impreza.com/na/tgv.htm
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Old Jan 16, 2003 | 08:30 AM
  #25  
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From: Pottstown, PA
Originally posted by gtr


Of course i'm not going to use cheap stuff. What if i want redline gear fluld and the dealership won't allow that? I wonder if I could bring a reciept for my parts for them to honor my warrentee? I also know a dodge mechanic so will void if he works on my evo because he never worked on a 4g63 in an evo instead of a talon. Lets hope it's just a rumor.

I'm suprised by the reaction. I thought 75% of car enthusicts likes working on thier own cars?
I like working on my car when I know what I'm doing... I'll do the simple stuff, but if anything requires a lift or special tools, I'll take it to a shop or to the dealer. I just usually don't have the time, especially after work at 6-7pm... I just wanna relax... Any work done is on the weekend, anyway. Either way, I'll wait and see if any Evo tuning shops pop up in the Philly area. That would be pretty cool to see... Same goes for the STi.
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Old Jan 16, 2003 | 08:53 AM
  #26  
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From: Dayton, OH
Originally posted by gtr


Whoa, walking crank? I thought that is on the evo I-III motors (2g eclipses). I'm pretty sure our engine is far more advance than the engines used 8 years ago on the evo's. Any evo owners what to comment on this issue?
I don't know about "more advanced" applying here. The 1G DSM motors didn't have problems with crankwalk, but when they "improved" on the motor (for the 2G DSM's) then they started getting cases of crankwalk. Actually pretty much any of the 7-bolt motors (2G DSM and even late 1G DSM) have been known to get crankwalk.

BUT, I think you're right that by this point they have worked out the issues with crankwalk. I doubt the new Evo's will have problems with crankwalk. Are there any cases of late model (6 & 7) Evo's getting a walking crank?

-Loris
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Old Jan 17, 2003 | 05:36 PM
  #27  
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From: CA
Good question. I was wondering how much more likely it will be to damage the crank bearings when you start to take the evo to around 300+HP. Also at what point should one replace the internals??? 400hp???
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Old Jan 19, 2003 | 07:10 AM
  #28  
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From: Texas
From what I heard (Mitsu Tech) owners will have to sign a contract saying they will not race the EVO (probably even include modify in anyway) and only allow the dealership to do any work on the car.

I think this is gay considering I love to work on cars, will modify my cars, and don't want to pay an arm and a leg (assumption) for Ralli Art parts that I could get cheaper elsewhere. (IC piping, exhaust, etc) Probably the only thing I would consider buying would be the FQ computer??
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Old Jan 22, 2003 | 10:50 PM
  #29  
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"From what I heard (Mitsu Tech) owners will have to sign a contract saying they will not race the EVO (probably even include modify in anyway) and only allow the dealership to do any work on the car."

I heard something similar about service only (not the racing part). Danvers (Boston North Shore) has 4 coming on the initial shipment. 1 is already sold, they are taking no refund security deposits on the other 3, but will not sell over sticker for those with a deposit.

I'm going to wait for the heat to die off, check out the STi, and buy one of the 2 towards the end of the summer. Even with the volume of Rex's sold, it didn't take long for the dealers to drop below sticker when they first came out, I'd think it'll be the same way on the EVO and STi.

My $0.02...
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Old Jan 23, 2003 | 01:20 AM
  #30  
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From: Road Race Engineering
Regarding "factory only service"... legally if a factory specified part is required to maintain the factory warranty, the part must be supplied by the factory for free. This includes specific lubricants. If the labor MUST be performed at the dealer, then it has to be for free too.

Regarding employees of Satan actually knowing anything about a turbo car... I am sure there are a few out there. I have yet to meet one.

Regarding crankwalk... Any motor from any manufacturer can have a failed thrust bearing (or any other bearing for that matter). It was just an epidemic of failed 4G63 thrust bearings running from mid '95, peaking hard core in '96 and tapering off through '97. With the redesign of the thrust bearings in mid '97, occurances dropped off to industry standards. It still happens.

Mike W
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