You are right we dont know because no one has tried yet. But as a guess iam saying the stock mivec cames wont allow as much flow as say jun 272s. And as for loseing low end power that is to each thier own. I dont get on my car at 2500-3000 rpms anyway so i could care less. But anyway i can see your point of view.

 

if it is about cams I believe TT came out with intake cam. I am sure many more will come.

HKS will have to chim in on this for sure

 

Well screw it Its a pointless debate anyways. And Al is not exactly an in depth tuner... he isnt going to remap everysingle part of the RPM range vs boost vs throttle vs MiVEC for every different car so dont go bragging about how he is going to tune extremely complicated systems... he doesnt even tune his own car. I guess it doesnt matter in the end. Personally I could give a crap less about it, people can brag and brag how great it is all the while I am driving past them. It is one item that is not needed to make a car fast. Its like when you have 6 control boxes all lying to the stock ECU... sooner or later it is more of a headache trying to get everything working correctly together. In stock form, yes its probably nice. In any car that plans to have a large turbo... I dont see the point.

 

Here's something worth considering about MiVEC: theoretically, you could run much more aggressive camshafts without having a freakishly high idle.

AFAIK, one of the reasons for low idle vacuum with upgraded camshafts is the extremely late IVC associated with high RPM grinds. Although you'd be trading it for overlap, MiVEC could be used to reduce the IVC angle at idle, which would make the camshaft work better at idle and low RPM.

Now, TrinaBabe, I know you're tempted to toss this in with low RPM power and torque. Consider, for a moment, having the ability to (theoretically) run saaaay a 300* duration camshaft instead of a 280, while still idling properly?

There might be other problems such as excessive valve overlap, interference between intake and exhaust valves, and so on. But, if it turns out that you can run more aggressive cams with MiVEC while maintaining a decent idle, an idle which doesn't draw so much attention to you at stoplights, don't you think that would be pretty valuable, even to an all-out drag racer who drives his/her car only occasionally?

-Adrian

 

didn't i already say this?

 

Did you? I'm sorry if I didn't see it.

 

Any info you can share yet?????

 

In thoery, like I said, it is a fine thing... do I think in the real world will people honestly go that far (If possible).. not really. Personally I think people will come out with the equivelent of the comp 300's or HKS 280s in a year or two. Yes, it will help it idle and I did agree to that already. I just dont see it being anything that people trying to build fast cars with large turbos will ever honestly want to upgrade to. Im not an engineer... Im not even a race driver, this is my thoughts on it. This started as a debate on whether it could produce more power, now it is on if it could idle a car better Its a pointless debate, only time will tell if it is honestly going to do anything for "race like" cars.

 

yes.. however making big power is going to require a new head.. (not so bad now that cosworth has a new head out).. Consider that I made a 100whp over stock on a mustang dyno on an 03.. thats a 35% increase in whp for a low dollar amount and I dont have the advantage of the evo IX turbo.. regular tiny old 03 turbo.

 

This has turned into a very interesting debate Im surprised Al, Shiv, or any of these guys have posted any info at all!

 

You dont need a new head to make over 1000HP.. ask Shepherd or Brent.

 

wouldn't it just be easier to chip the VIII and smooth out the power delivery, it'll be wiser bang for buck wise than trading in an VIII for a IX. . .modability, the IX is definitley delivering AFTER tuning, but before tuning, it's around the same, not worth it imo. . .

 

More data:

Base is my car (mods in sig, stock 05 turbo)

Test is a 03 evo with an IX Turbo / 264-272 cams /cam gears / ebay 02 housing / 3" downpipe / exhaust / Works high flow cat / 720cc injectors / walbro pump / ecutek / MBC



Keep in mind:

1. This is a very low reading mustang dyno, much like Buschurs, I was the first and only evo so far to break 300whp on 91octane with a safe AFR on a stock turbo on this dyno.

2. The IX turbo equipped 03 EVO has a HFC while my car has a testpipe

3. The IX turbo equipped 03 EVO has 264/272 cams while my car has 272/272 cams

4. The IX turbo equipped 03 EVO has cam gears set at 0/0 ( I gained 11whp peak tweaking my cam gears)

This IX turbo equipped 03 EVO is making great power for it's mods. I really believe that it can make an additional 15-20 whp with a test pipe and cam gear tweaks.

The IX turbo equipped 03 EVO base run before the IX turbo and ebay 02 housing was 265whp/243whp (7 months ago but on the same dyno)

yes this isn't a perfect apples to oranges comparison but it is more data, everyone likes data don't they?

here is his chart without my car overlayed:

 

Great find Razorlab ... data is what we need and as you said, if the car had a test pipe and cam gears adjusted properly it could pick up 10-15HP ... which would go to show there is a gain using the EVO9 turbo over the EVO8 turbo. I wonder if temperature conditions didn't affect the readings? Was your car and the 03 dynoed in the same day or under similar conditions?

 

Far from it. the IX has a much greater punch than any 8 in stock form ~20WHP more. Thats why many are buying it because you have nice warranty on the IX and you can keep her stock.