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Old 07-31-2020, 12:40 AM   #1
Bugeye01WRX
Scooby Newbie
 
Member#: 506873
Join Date: Sep 2019
Default Tuning a High Mileage WRX

Hey guys!

So I am about to go in and get my vehicle tuned! I have been debating for months but finally decided to get it done.

However, my last concern that I have been made aware of when talking to one tuner is that tuning a high mileage WRX can be risky.

I have a 2001 JDM WRX (Don't live in America) which has 202,000km on it.

When getting tuned, it will have a full engine service, leak down test etc but I have been advised to just go stage 1 and get a reflash, and don't do anymore.

I was wondering if anyone has tuned their WRXs with at around 120,000 Miles (200,000km) at stage 1 or stage 2?

I was planning on going stage 2 with 3 port EBCS, High Flow Bellmouth DP and a tune.

But now I am wary if it is going to cause me issues.

I have looked after car since I have owned it for last year and it has been pretty good thus far. Obviously I do not know previous history but if the leak test etc all come back good, would I be fine to go stage 2?

And what kind of power differences can I expect stage 1 vs stage 2.

Car is 247bhp stock, but I assume a lot of the improvement comes from increased torque at stage 1?
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Old 07-31-2020, 02:41 AM   #2
bobjr94
Scooby Specialist
 
Member#: 6176
Join Date: Apr 2001
Chapter/Region: NWIC
Location: Roy,WA
Vehicle:
15 WRX, 04 wrb STi
85 wrb BRAT

Default

My baja turbo 2.5 had 224,000 miles when I bought it. I put on larger turbo, downpipe, exhaust, intake, injectors, tuned for higher boost and more....it has 294,000 on it and still running great. Going to a stage 2 with a good tune should not be an issue.

It all depends on the tune and boost levels, but I would guess with your setup and a reasonable tune, stage 2 may get 260-265HP and be fairly safe.
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Old 07-31-2020, 08:54 AM   #3
trueno92
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Member#: 111755
Join Date: Apr 2006
Default

Do you know the cars service history?
Do you know if it has any existing issues? Gaskets leaking, eating coolant?
Does it see a lot of action around redline often?

Try to dig around. does it do any weird behavior when ur on it? does it do any weird behavior at start up? does it do any weird behavior when its sitting for long periods of time? does it leave any weird stains whenever you park it?

How is the entire intake tract after the MAf? clamps good? hoses good?

To be totally honest with you, the tuner is trying to protect you and his reputation. last thing he wants to hear is that a customer went stage 2, and a problem surfaced and now the car blows smoke out the tail pipe.

You can do stage 2 with the factory stuff and a downpipe, you don't need a 3prt yet.

A good stage 1 map with the highest octane you have, will be a pretty big difference with that avcs engine. I don't think its the high comp version just yet but if its healthy, you can get some good power out of it.

Quote:
Originally Posted by Bugeye01WRX View Post
Hey guys!

So I am about to go in and get my vehicle tuned! I have been debating for months but finally decided to get it done.

However, my last concern that I have been made aware of when talking to one tuner is that tuning a high mileage WRX can be risky.

I have a 2001 JDM WRX (Don't live in America) which has 202,000km on it.

When getting tuned, it will have a full engine service, leak down test etc but I have been advised to just go stage 1 and get a reflash, and don't do anymore.

I was wondering if anyone has tuned their WRXs with at around 120,000 Miles (200,000km) at stage 1 or stage 2?

I was planning on going stage 2 with 3 port EBCS, High Flow Bellmouth DP and a tune.

But now I am wary if it is going to cause me issues.

I have looked after car since I have owned it for last year and it has been pretty good thus far. Obviously I do not know previous history but if the leak test etc all come back good, would I be fine to go stage 2?

And what kind of power differences can I expect stage 1 vs stage 2.

Car is 247bhp stock, but I assume a lot of the improvement comes from increased torque at stage 1?
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Old 08-01-2020, 02:40 AM   #4
1967Impala
Scooby Newbie
 
Member#: 514747
Join Date: May 2020
Default

Quote:
Originally Posted by trueno92 View Post
Do you know the cars service history?
Do you know if it has any existing issues? Gaskets leaking, eating coolant?
Does it see a lot of action around redline often?

Try to dig around. does it do any weird behavior when ur on it? does it do any weird behavior at start up? does it do any weird behavior when its sitting for long periods of time? does it leave any weird stains whenever you park it?

How is the entire intake tract after the MAf? clamps good? hoses good?

To be totally honest with you, the tuner is trying to protect you and his reputation. last thing he wants to hear is that a customer went stage 2, and a problem surfaced and now the car blows smoke out the tail pipe.

You can do stage 2 with the factory stuff and a downpipe, you don't need a 3prt yet.

A good stage 1 map with the highest octane you have, will be a pretty big difference with that avcs engine. I don't think its the high comp version just yet but if its healthy, you can get some good power out of it.
In terms of service history, I know about a year before I owned it as it was taken to the same mechanic I go to. I have looked after it, had it serviced about 3 times since I have owned and just fixed a few minor things.

Before I got it, the following was done:
Head gaskets blew at 175,000km and were fully done (have receipts for that work).
Bought car off a dealer and he fixed an oil leak and left end steering rack which had some play.
I then fixed the following:
- New battery
- Thermostat valve
- General service items

At this point in time, vehicle is in pretty good shape from what I can see.

The following items are the things that I can see are potential issues:
- CV boot has an aftermarket one that has been put there that is not the best. Have had it checked and it is fine for now but recommend to replace in another year.
- There is a very slight oil leak I can't remember when it was I think it was rear plate or something I will have to double check. It is extremely tiny but they did mention to get in there and fix would take a while.
- Vehicle sometimes makes a crunch on start up. Have had starter motor checked and it is all fine and it only does it if it is very cold or if car has not been driven in a few days.
- Occasionally when changing gears, I hear a little "ting" noise (maybe like a little whine?)if I am changing usually from 4th to 5th at higher rpms, but sometimes I can hear it from 3rd to 4th. It is very faint but I don't know if it is anything to worry about.
- And finally, sometimes if I change gear from 2nd to third at lower rpm and drop the clutch too quickly, I hear a "CLUNK" sound. It happens from 1st to second sometimes. It seems to only do it if I shift poorly or engage clutch too quickly at low rpms. Again, is this anything to worry about?

Apart from that, vehicle has stock turbo, stock trans and stock motor. Everything above is what I have noticed and I am very picky.
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