Hi everyone. I've been a long time fan of the Evo since I was blasting around in one on my Playstation many years ago. Now I finally got one. An Evolution VIII MR no less (will have pics up soon). And I love it, its a major step from the 300ZX TwinTurbo i used to pilot. I handles so much more sharp, and from standstill, the roar of the Evo is much more exciting.

I have been looking around, and heard that the 6 speed is no good if you want serious power gains, but that was fine with me. I want a daily driver, not something I can only take on Sunday.

But as the title lets know, I have some wonders about my Evo. Its pretty stock, besides an exhaust, a pair of Defis (boost and water temp) and a Cusco exhaust manifold heat shield. I want a little more go from it, but since it was a Japan model, it has a 180kph limiter.

I have done a little reading around, but I am still pretty new to all of this. So I was wondering; will something like replacing the ECU with a Greddy Emanage let me get around the 180kph limit? I have also heard the Evo runs rich normally, which eats into power, so pulling back will help. Is that true?

And will something like that run well with a boost controller or will I not need one?

And lastly... I have read in this forum that the Evo does not take blow offs well, and that a recirculator or diverter would be better. And IIRC, something like the HKS SSQV can do recirculation, am I right?

Please help a new guy!

 

Well two answers:

1) The limiter is best and most easily removed with EcuFlash and a tactrix cable.

2) If you want the sound a cone filter kit and intake pipe like my buschur one makes the stock DV sound like a BOV with no side effects.

 

Thanks for the help, RoadSpike. I have been around and asked about getting an ECU reflash, but I was priced out of it, to say the least. So I probably will get an alternative (a small box which I forgot the name).

And about the blow off. I didn't know that the Evo had an internal gate on the turbo to let air move so, since a blow off is not necessary, I won't get one.

But I was advised to get a Blitz SBC boost controller, with oil temp and oil pres sensors. A larger turbo outlet pipe, which I think is upstream on the exhaust. A new actuator, Apexi AFC Neo and that's it I think...

What do you think about this kind of build? Would it kill daily drivability? And what would realistic power gains be like? Thanks again for the help, RoadSpike.

 

A wastegate as you mentioned isn't needed on a stock turbo but that comment about a DV which is part of the boost tube system makes no sense.

The "little box" you speak of must be the access port which is around 700 bucks? And a taxtrix cable is 200 so it doesn't make sense to me. Even having a tuner do it all for you for months like Mellon in addition costs much less.

http://www.tactrix.com/product_info.php?products_id=40
http://www.cobbtuning.com/products/?id=3349

Boost controller really doesn't matter what you get just don't turn up the boost without tuning it.

Definitely do not get an Apexi Neo as the Ecuflash can do that anyways
Your likely not going to run high boost numbers on a stock turbo so forget a new actuator

Skip the turbo outlet pipe and get an exhaust as the first upgrade its way more important in the beginning than details like an outlet pipe.

 

Well, that little box (its not the AccessPort, its something else whose only job is taking off the limiter. I do believe its a HKS product) would set me back about 300 of our dollars. I am not in the US, so getting services like Mellon would be quite difficult.

The cars already got a modified exhaust, but the final piece up front is still stock, so that's next, right? And around here, getting a reflash costs upwards of 1000 dollars. The Apexi AFC would be considerably less at about 500. Sorry, I am a complete novice with tuning.

This is kinda what my very simple minded thinking looks like:
More boost pressure = More air = Ability to burn more fuel = More power! (woo! )
So I get a boost controller to increase high rpm boost. But then I would need more fuel to burn, which is where some sort of Air fuel controller comes in.

Is my grand scheme of things correct? :P

 

Difficult due to the price or maybe you don't realize I do remote tuning as well as local? check out www.mellontuning.com to learn about the process and what equipment is required to get started. If you're uneasy about being tuned remotely I suggest doing a search for threads with "mellon" in the subject and read a few reviews

 

I still wouldn't get a fuel controller as ignition timing as well as fuel control is really what makes the most power for the car. Just dumping in fuel to compensate for uppping the boost is a waste IMO.

Decided to lookup your currency.

Tactrix cable costs
189 U.S. dollars = 263.711608 Brunei dollars

Since mellon is so inclined to help i'll use his pricing. (package B)
250 U.S. dollars = 348.824879 Brunei dollars

So far we are under your 300 bucks for HKS thing + 500 for AFC. So that leave 189 Brunei dollars on the table for shipping a tactrix cable

 

sometimes you have to come up off the wallet to get the good stuff

 

Thanks a lot for the help Roadspike and Mellon, I hope I can get a cable in. And maybe give Mellon a ring.

If I can ever help (maybe you want a holiday in our little country? ), I hope I can.

 

Uploaded as promised.

 

Welcome!!!

 

Use ECU flash, its cheap, get the cable, download the program (free) and your good to do some minor changes, I can help with that if you need.

 

Thanks guys.

I am just wondering how feasible it is, with just a boost controller and ECU flash to take the car beyond 7000RPM? Not that I want to do that on a regular basis, but just for the occasional high and bragging rights.

 

Congrats and Welcome!

 

Stock RPM limit is 7500 and thats perfectly safe IMO

i wouldn't take the car past 8000 rpm on stock equipment as a personal preference.