UPDATE:

Helix Power is pleased to announce the release of its hollow-core 272 duration camshaft for the Mitsubishi Evolution VII-IX. The Helix camshafts have the duration of 272 degrees with a 10.8mm lift on the intake and 10.2mm lift on the exhaust side. The camshafts are manufactured from billet steel, precision machined, and heat-treated to a Rockwell-hardness greater than that of the stock camshafts. The cams are then hollow-cored to reduce rotation mass – at ~1.8kg each, almost 2oz per camshaft lighter than much of the competition.

^That's the info from Helix. We installed these cams with the new Helix V2 cam gears. The power output and torque was what you'd expect (we had the HKS 272s in the car). However to our surprise the improvement in idle, response, and revs is actually pretty amazing. The reason for this is that the new Helix 272 hollow cored camshafts are about 2oz each lighter than the HKS units. The cam gears weigh in at less than 1lbs, making them over 4oz lighter than the Helix cam gears (I don't know of any gear on the market that is this light). The engine just feels like it's ready to rev faster and higher, and the idle definitely isn't as rough as before. We're pretty happy with these cams, and considering we're going to start retailing these bad boys at $399/pair, I'd say these will be the new "it" cams.

Below is a dyno graph we made on our shop car. Keep in mind this is a lot of power we leaned it out to 11.5-11.6 on 91 octane which is something we won't do for a customer's car. On a colder day (95 degrees in the bay!) it should easily break 300whp.

Cheers,

Gary
Gruppe-S

I suspect these photos are not of the actual product? I don't see the holes indicating hollow cores.

What kind of power do these make compared to the HKS 272?

Hi,

The cams are actually internally hollowed (through the center hole) so may be the translation is bad (I don't know if internally hollowed has a different meaning). They are 2oz lighter than the HKS, I weighed them myself today.

The cams made the essentially same power as the HKS 272's. I am led to believe these cams have a more aggressive different duration @ 0.050 than the HKS and the same at 1mm (about 0.5 degree more) but I can't confirm this and don't want to promote it from a feature that may not exist.

Thanks,

Gary
Gruppe-S

These work on a IX ... or just exhaust ???

was the dyno #'s on a evo 8 or 9? Was the car stock? other mods?

400/pair sounds like a good price.

Sorry IX intake won't be out for a few more weeks they tell us.

Car (2003 EVO VIII) basically had our stage 2 mods, camshafts, fuel pump, 10.5 hotside, turboback, and Grupe-S reflash. It had stock injectors which we highly don't recommend at these power levels, but we were in too much of a hurry to do things right.

Cheers,

Gary
Gruppe-S

Thanks for the clarification, no translation issues.

It was more of a question regarding the way the stock cams are hollowed with holes on the shaft and these looking different.

Will they be making 280s and if so for around the same price if you know?

These are the cheapest cams I've seen. 280s for that price would be sick though.

Will the IX cams be priced the same?

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Hi Taenaive, sorry about your situation. There apparently has been serious miscommunication regarding this whole exhaust issue. Daniel is no longer with us, so I will get someone to handle your situation immediately. Thanks for your patience.

Gary
Gruppe-S

If $399 is the everyday "retail" price what is the special introduction price?

gosh, i would like to get these cams, but can you show us a "scientific", and objective comparison (something like a before and after or the helix compared with the hks). i have nothing to compare this too; the posted dyno figures indicate that the cams are capable of some horsepower figure (which required the fuel to be leaned out)...i guess the main selling point on these is the fact that they are cheaper than the hks unit.