Would that void your warranty?? They might think that you miss shifted witch means any power train warranty would be voided because of the user era. They might have a tell all black box. If they do, any time you go past the factory rev limit warranty is gone.

This is my knowledge from BMWs witch also use the key with a chip for a confirmation code to start the car.

I would really like an answer on this Works?

Eric

 

So, are your 2c speculation or verified concerns specific to the Evo? How does this impact your own policy on rev limits? Does this mean that we should expect Vishnu to not offer rev limit increases?

Enquiring minds want to know....

-- DavidV

 

That is really my only concern about the brain flash. Can the dealership read any logs that show the rpms or anything like that. I know for a fact vw can tell how you have driven the car by looking at past peak boosts and rpm's. I want to know if the same is true for my evo. If so, I would want the stock rpm limit on the car.

 

Why would you want to rev the car to 8500 to sound cool? If max power is at 6500 and it starts to die past that why rev the **** out of it? I understand that you make power up there, My NSX does the same thing it's peak power is at 7700 and rev limiter is at about 8200 so it is okay to rev it there but I think if you rev it to past the stock rev limiter you are asking for trouble, not only with Mitsu but with the car as well. No need to rev it that hard only need to work on making better use of the power and keep it around 7000 would be best because then you have 300 rpm just in case.

 

Take a look at the new M3's that were blowing up all over the place, they could see a missed shift and then you get to pay for the bill. That was until they found out it was a problem with there motors. I say keep the stock rev limiter. No reason to put the extra stress on the motor.

 

That's the big question, what's the safest RPM this engine can go to from the factory?

If I can get a few more RPM safely and reliably - I want them. Even if power is falling off, it's useful for road racing to hold a gear, or have more options when placing the engine in the rpm band. If the car is still holding power, heck yeah I want more rev, I like the mechanical advantages of gearing. The 4G63 Gurus should have a good guess what's safe to rev this engine to with our forged internals, and how many more RPM you can use by going with cams/springs/titainum retainers.

 

David, no need to get hostile. A customer wanted to know if the dealer could detect the reflash. Shiv just stated that there is a black box that the techs would most likely use if an engine warrenty came up. My apologies if I misunderstood your post David.

 

Not hostile, just curious.

-- DavidV

 

Based on our research and experience, 7850 rpm is safe and reliable and the WORKS Brain flash makes useable power all the way to 7850.

-- DavidV

 

If the over-rev logging is part of the OBD2 diagnostics then you should be able to clear it with an OBD2 scantool or laptop / PDA with OBD2 interface ?

Just started playing with OBD2, anyone know for sure ?

 

David, based on your previous claims that it cannot be detected, I would think that WORKS would have a definitive answer concerning this detection question at least as far as detection through analysis of software data available to the service techs.

Is it a conclusive "...in a word no", as you have stated, or is it, in more than a word , that your not positive but you don't think so?

Do you know whether or not the EVO is equipped with tools that enable storage of datalogging information accessible to the dealer that could expose the changes in the maps as suggested by others?

Your claim that it cannot be detected by dealers is a significant selling point and needs to be answered conclusively and confidently.

If your claim is correct, I am sure that it is backed up in writing with the WORKS product warranty documentation provided at the time of purchase.

As far as looking for another dealer if your mods are detected through a redline probing test drive by service personnel ... too late for that, your foul will already be logged in the servicce database.

Enquiring minds really do want to know!

 

Glad we are in agreement.

-- DavidV

 

even though I have a new rev limit of 7800+ rpms, I have never used it, pretty close though. Even at 7300 rpm the brain re-flash is making considerable HP & torque compared to stock. When I get on it I usually shift at 6800-7000 rpms the car feels great and is making lots of power. There's probably no reason to ever bring the rpms up to 7800, but knowing it can be done is a pretty good feeling.

 

David dosnt really answer questions does he?, he just kinda dances around them.


And if you respond to this one David, go back and respond to the other ones that you didnt answer first.

 

The chicken dance!