The main reason the IX's run so much faster I truely believe it is the MIVEC and teh mid range torque it adds. It's the power UNDER the Curve. Now that teh turbo is slightly large as well and the ability to spool it faster, you have more power for a longer powerband.

I love the IX.

 

I do too! And the added power of a tune & TBE - It's sooooo stock-like

 

The shaddyness of this testing and thier unusualy delay for a response leave me to believe this cam made no more power than with the stock cams, we gotta remember that they made 20whp after tuning with these cams when i have no doubt they could have made 20whp without the cams and jsut with a tune.

 

Fine...don't buy them.

 

You have to remember they are GSC cams, not AMS and AMS did the testing. I don't think they would put their reputation on the line to inflate other companies numbers.

If this was the only set of cams ever to be made, then fine no one would notice. But there will be others and slowly but surely there will be more dyno's. So if you are so skeptic then wait until others.

 

any updates?

 

I think you're wrong. I think it's mostly due to the more efficient compressor cover on the 9 turbo. Look at what happened when Vishnu put a IX turbo on an 8--close to 9 numbers. MIVEC certainly helps, however, I just feel the turbo helps more.

 

Its both really. BTW, did anyone know the MIVEC 2006 intake cam has higher lift than the stock 2003-2005 intake cam? That also adds power...

 

Just a quick question because I couldnt find the answer. I know that IX intake cam is different just because of the mivec, but are the IX cams any different duration/lift then the 8's cams? Maybe the IX cams are better and that would explain some of the difference?? Just an idea.

 

Guess we'll have to wait until someone purchases them and becomes the guinea pig in providing results before and after.

 

data please... i'm very interested in the validity of this and also would like to add this to the cams spec sheet.

 

I stumbled upon Crower's new website, which Crower's son Brian started... basically ANOTHER Crower. He is developing cams for the IX and should have them done by winter of 2006.

Dur Dur@ .050 Lift (in) Lift (mm)
USDM 4G63 (Evolution VIII) Stock248°/248° 200°/200°. 386"/.367" 9.80/9.32

USDM 4G63 (Evolution IX ) Stock 256°/248° 206°/200°. 396"/.367"10.05/9.32


According to this spec sheet, the exhaust cams is EXACTLY the same, HOWEVER, the IX intake cam has MORE DURATION (256 compared to 248) and MORE LIFT (10.05 compared to 9.80). Very interesting indeed.

Mitsu changes so much little stuff but all we usually hear about is things like the actual addition of MIVEC and the bigger compressor housing. Now we know the car better coolant passages in the head, bigger compressor housing, MIVEC.. AND a more aggressive intake cam.

 

Damn, good find Tom!

 

I have been reading 15 pages, what is the verdict? any hard numbers yet?

 

GSC and AMS have been unusually quite about giving us a hard baseline dyno b4 the cams, they have delayed a response for this baseline for almost 2 weeks with not even mentioning that the would show them, they tuned the car with the cams and "said" they made 20whp over baseline but if u didn't add the cams in and just tuned the car with the mods it had it still could have made 20whp so i guess they cams really made no power.