Good information here, I think the IX rods are longer that may be why they look a little bigger.

 

Well, it's all spectualtion right now, but a well designed semi-closed deck should be good for about 600-700 hp at the crank. Sti's use semi clsed decks with aluminum blocks and they have pumped out those kind of power levels. So, I'm guessing that 550-650 hp at the wheels and then major, expensive work would have to be done to make any more than that, reliably at least. The evo 9 is more of a drag car, and the evo x is more of a track car. Most road race cars have around 500 hp, so the evo x would be perfect for that. Although you never know, the block could hold up to power levels that exceed that of other semiclosed blocks. Remember, the semi-closed deck block in the evo x is much better set up for big power than a honda semi closed block. Hondas may be modified to handle big power, but it's not what the car was designed to do. The evo will surprise, I feel quite sure. Dr. evo had a reason to go to an aluminum semi closed design, and I'm sure that weight savings was a big part of that, but he wouldn't have done it unless it was strong enough to satisfy the tuners. We will see, I suppose. 500 whp, which the 4b11 should easily be able to do, is plenty for me anyway.

 

the IX as good as on road track as good as in drag racing. Period. The fact if you really wanna get into it. the IX is better road race car then drag. Just the road race in the states didn't really take off yet. But we getting there.

 

Someone from overseas warned us Americans that Drag Racing will kill the AYC system!!!!!!

 

Well, the x is a better set up car for road racing than the 9, period. Ask robi from robispec, he'll tell you the same thing. The 9 makes a great road race car as well, but I'm just saying that it's a more capable drag car, most likely, than the x. The purpose of all evos is to be great handling cars more than straight line speeders, but the X's chassis and suspension setup, coupled witht the more advanced AWD system and wider track makes it a better road race car. No if's, and's, or but's about it. End of story.

 

The ACD systems for us has been a nightmare once we hit above 600whp it would cause huge voltage drops and shockwaves thru the drivetrain when you go to cut a really good 60ft. Over 300 drag races at the track i finally yanked it out and went with a 04 transfer case. Makes me wonder what the AYC system would do with drag racing? Also from what ive seen with AMS they run all mechanical with there diffs with there road race car Looks like the electronic stuff is there to make a bad driver look good

 

I would disagree with the drag racing part. Lucas English and many others run low 11s all day long with no problems at all but a clutch upgrade. Lucas showed us his time slips for last year and had 250 passes 120mph plus with 1.5 and 1.6 60fts no problems at all This is a 04 evo. Took the motor apart everything looked awesome
David has proven many times to run 10s with no problems.

 

ding ding ding ding ding ding ... yep, it's 's way of engineering a neutrally handling car while keeping the safetynet that was previously provided by an understeeting chassis.

l8r)

 

It is obvious that this motor will satisfy 99% of the tuners our there. The rest have money to burn and will completely rebuild the darn thing anyway.

A quick search of the forum indicates that only a handful of people are breaking the 500whp mark.

It too early to tell if axles, clutch, tranny, and diffs will hold up long term or not.

 

Nice, turbotrix, what is your overall impression of the motor relative to the 4g63?

 

you guys should be comparing the new engine to the ecotecs. not a b-series honda. lol. the ecotecs are very similar in design.

 

I said that the X is better suited to road racing, and that the 9, although still a great road race car, isn't quite as well set up for a road race course. I said that the 9 was a more capable drag racer, most lkely, than the x. I said the 9 is the better drag car, and then you correct me by saying that the 9 is the better drag car. Are you mental, or do you just like repeating what I've already said? And why are you talking about running low 11's all day with a clutch upgrade? That has noting to do with what I said. Weird...

 

I can tell you the LS guys will always go to an iron black for serious FI applications.

 

"and that the 9, although still a great road race car, isn't quite as well set up for a road race course."

can you explain to me this one? i would like to know your standards ,why the evo 9 is not quiet well set up for road race? I assume that is why you got the STI , right?

 

What's interesting and sad at the sametime is that Mitsu had to go with an aluminum block to save weight because the X already outweighs the IX and the VIII even with an aluminum block. I have no doubt the new motor will handle some power, but how much is still the question.