The X at 23psi and the IX at 19 psi, it looks like the X will have no Topend at all. I think mitsu put the smaller on so there would be no room for much power with the stock turbo maxed out.

 

You can't really say that from that one test. That particular IX is really powerful, but you cannot assume all IXs will be making 240whp+ on low reading Mustangs because they don't. From what I've seen, it seems that the EVO X is making slightly less or equal power than a IX and more torque.

 

Yeaper! X won't see as much power as the VIIIs and IXs on stock turbo. Period.

I'm anxious to see what will happen to the motor once cams and an upgraded turbo get on the car. I'm curious to see if the engine is more stout or not.

 

Stop dreaming dude.

The X is boosting over 5psi more peak and can't even hold the boost steady. It's quite clear that the turbo is the X's weakest element (just like the T-25 2G eclipse vs. the 14B 1G eclipse). Knock will be prevelant which will require purchase of an upgraded front-mount intercooler as opposed to most of the VIII/IX owners being able to keep their stock I/Cs. The stock turbo on the X will be trouble trying to get a lot of power.

What we need to be asking is why did Mits put such a lower lbs/min turbo on the engine in the first place. Maybe the engine isn't built for high hp?

 

Stop dreaming about what??? I am only talking about this stock dyno, why are you bringing up mods and stuff Also define trouble getting a lot of power, I believe the few threads so far have shown you to be wrong on this. I am with you, I do not think the EVO X will make as much power on the stock snail as the EVO IX, but that still doesn't mean the EVO X can't make good power. I've said this before, you want a race car stick with your IX, you want an adequate daily driver that also makes good power than get a EVO X.

 

good stuff...both cars look to spool the same. I thought the X would spool earlier

 

In Japan, one of the tuning shop already found a way to flash the boost taper but since Evo X has a smaller turbo than Evo 9 or 8,it probably wont have higher peak hp then Evo 8 or 9.
I assume that 4b11t wont have crazy potential like our beloved 4g63t but for 400-500whp range, it will hold...
Oh well I'll probably get satisfied with 350whp-400whp so Evo X will do just fine for me....

 

Trouble getting power = trying to get the same power out of the stock turbo that a VIII/IX can do out of it's stock turbo. Look, everyone wants this car to be the holy-grail of evos. Newer MUST mean better right? The car has only proven to be mod friendly like most turbo cars these days (look at the 335i, it got excellent gains modded as well) and turn a corner better than the older gen EVOs. That's all. People are "trying" to make it sound like it's better power-wise than the older gen EVOs and that's where it becomes a dreamland. Peak whp isn't the aspect we should be looking at for making statements like "makes slightly less than the IX.." We should be looking at the area under the curve and the boost levels. For the mere fact that the IX can make more power under the curve with MUCH less boost is an understatment.

I used to own a 89 Ford Probe GT Turbo. That car had oodles of torque for a 4-cyl due to it's smaller turbo. The car "felt" really fast, but it really was slow up top. That was proven with all the roll-along races I was in where a car with an obvious top end advantage came flying past me.. Morale of the story - just because the car "feels" as fast or faster than a IX doesn't make it faster.

-M

 

weak.. thats dodge for ya

 

Interesting to say the least.

 

Looking at the boost curve and power curves, in my experience the boost taper is by design in the stock ecu, much like the evo 8 and 9. As you can see in the overlays, the Evo 9 tapers to the same amount.

After tuning with ecu-controlled boost I have seen the stock 9 turbo hold over 20 psi.

Looking at the specs of the Evo 10 turbo, I don't see the 10 being much different, from the specs, it looks like it has a larger exhaust wheel and hotside and only a *slightly* smaller compressor wheel.

We will see once we get control of the ECU...

 

Tapering *to* the same amount is not the same thing as tapering *by* the same amount. Going from 19--->13 is different than going from 23--->13. This isn't ECU tuning but seems indicative of the turbo's capacity to keep the engine happy at high rpms.

I'm almost certain that the X and IX turbos aren't going to yield the same power potential.. tuned or not.

Check out AGP's thread and their R&D with the X. They shed light on this very subject..

 

In all honesty, to most of us the stock turbo numbers don't matter. I don't think people snath these up with the intention of keeping a strock turbo on there, especially since it is smaller tha the previous year cars. Someone make a header to mount a 50 trim already, thats when we can judge power of the two generations.

 

Now, nobody really knows that for certain yet do they?

Won't really know if they can make the same power mod for mod on the stock turbo yet because nobody has tuned the ecu yet here in the states.

I did see the AGP thread, they put a MBC on the car and it holds 18 psi now. Most of the Evo 8's and 9's I have seen on our dyno hold about 18-19psi as well with a MBC. With ecu controlled boost and the right sized pill, or going to a 3 port solenoid, I have seen the stock turbo hold 20-21psi on 8's and 9's. With upgraded actuators, about 23psi.

The 10 is still very new and alot of unknown. We are going about it from a scientific angle, since we don't know if it is an ecu-tuned boost curve or the actual turbo yet, I am speaking from experience with tuning over 100 Evo 8's and 9's with ecu-controlled boost. The truth is, nobody knows if that curve is by design or the turbo yet. I am sure we will know soon.

Going back to the graphs. The Evo 9 overlay is a slightly stronger stock Evo 9 then we usually see on our dyno. The average, from baselining a ton of stock Evo 9's, is around 235whp/230wtq. Some do 245whp, some do 225whp.

This is just the first 10 we have had on our dyno. It might be a lower power one, just like some 9's. Once we starting getting more 10's on our dyno, we will have more data to look at.

 

I disagree. I can bet that at least 51% of all EVO 8/9 owners still have stock turbo which would mean they have every intention of soaking out the most power they can from the stock unit without going into the motor with an upgraded turbo and risk reliability issues.