It's not just my car. Call RoadRace or Vishnu and they'll share their experiences with you directly. There are also a couple of others on EvoM that have been less than satisfied...some more vocal than others.

If there's a problem in my head, it came that way from Mitsubishi and is only evidenced by the Revolver cams. Other than head studs, my engine was completely stock before doing these cams.

 

Are you now going to blame hks because you didnt make power with their 264's?

Or are you going to finally relize there is something WRONG with your car.

 

I'm happier, at this point, with the HKS cams for the following reasons:

1.) They idle perfectly (I'm aware that I should expect a lopey idle with more aggressive cams. It's still nice to have a clean idle.)

2.) They don't make an unhealthy valvetrain noise when set to 0/0.

3.) The power curves, while not overwhelmingly impressive, do look better than what I had stock or with the Revolvers.

As I said before, It's going to take some additional tuning to realize the potential of these 264's. I only did 3 dyno pulls, and haven't touched the cam gears.

I'm trying to figure out why the dyno charts look jagged, and why I'm not seeing the airflow numbers I thought I would at this point. However, I'm not at all convinced that there's something "wrong" with my car. It feels and sounds great. It's just not perfect yet.

 

Wow. Quite a bit of problems for no apparent reason. Sorry to hear about your poor luck with the Revolvers.

It sounds to me like the guys at Revolver went out of their way though, especially considering, from what I think I read, that you bought the cams that you do have used and not from them. I don't think you can expect them to buy them back or re-imburse you for anything.

I am very slow to jump on any band wagon. I stick with what I have "grown up" on most of the time. I have used HKS cams and ONLY HKS cams now for about 15 years. Never had a failure and thought they were the end all to any camshaft design.

I had a customer contact me about 3 months ago and asked if I had ever tried the Revolvers. I told him "no". That was the end of the conversation. The next time I heard from him he was calling to let me know he had 16 bent valves in a new engine/head package we just put in his car. He then told me he put the Revolvers in the car. I asked him why the hell he didn't tell me first he was going to buy and run them as I could have warned him with the lift they had the valves would hit the pistons in his particular engine. Anyway, at that point I decided what the heck, I'd order them and try them.

I got the 264/262's from Revolver directly. Put them in my RS which was previously equipped with the HKS 280's. The car went from 386 whp/394 ft lbs of torque to 403 whp and 444 ft lbs of torque. Today the car was back on the dyno and it made 410 whp and 450 ft lbs of torque. This is on our VERY low reading MD AWD.

Last Friday I had a customer come in and we had to freshed up his engine in the chassis of his car. So a tear down, hone, re-ring and back together. We installed these same cams in his car, he also had the 280's before. His car, tuned to the edge of destruction by me made 565 whp and 430 ft lbs of torque last time it was here. All we changed were the cams this trip. The car made 589 whp and 479 ft lbs of torque. This was with a tune that will last and last. AFR's were in the high 10's low 11's and timing numbers were 7-8 degrees less than last time.

Next car......just put them in our black shop EVO. Again switched from the 280's to the Revolvers. Last time the car was on the dyno it made 661 whp and 460 torque. This time at the same boost and a little more tuning the car made 761 and 532 ft lbs of torque.

The cams work. That is what I am getting at. They work well enough that I keep them instock now.

They are not however for a car that can't be properly tuned with them, MY opinion is if the car isn't converted so speed density it probably isn't the right cam for your EVO. They are way aggressive.

David Buschur
www.buschurracing.com

 

Thank you for your input, David. I'm glad to hear they're working for some people.

It seems that they may just be too much for us that have less radical setups. The success stories all seem to involve ported heads and built motors etc.

David, I've got a set that I'll sell you cheap if you want them.

 

Send me a PM, depending on how cheap, I may just take them.

David Buschur
www.buschurracing.com

 

The whole speed density thing is an interesting observation if true. It would be nice to see another car with a different EM system and these exact same cams and see what happens.

 

I am running the MAF still on an EcuTek tune. I agree with David that speed density is the prefered method. Idle vacuum ends up pretty low and it affects the MAF readings which leads to idle roughness and some low speed drivability issues that would not exist if the MAF was not on there.

 

Hey Dave, are all the cars that you mentioned with the Revolvers running AEM EMS w/ speed density?

Any experience with the Revolvers with the stock turbo and with a flash?

Any feedback would be appreciated.

 

it not recommended to run these cams on stock turbo..too much lift..im running them with atp 3037s turbo kit

 

Dave, the thought process is that a full stand alone is needed to run the Revolvers. I know Timzcat is running a flash, but that is not recommended?

 

do you have any dyno sheets?


i would like to see the power curve on this setup...

 

i dont get how you can do so few pulls on a dyno and give up i mean 3 pulls is a baseline not a tune any real tuner will do 30 to 40 pulls to get a good map.

 

I agree, but Tuning Technologies was closing so I couldn't stay any longer on Monday. In fact, they're normally not even open on Mondays (not to mention the holiday) and came in specifically to get my car done. Those guys really do go the extra mile.

I'm doing some investigation now and will hopefully come up with a better dyno chart soon. My boost gauge may be reading a little high, I think I can get a better tune, and some cam gear adjustments may provide some additional benefit up top.

 

Speed density works best but we run and tune them on Ecutek reflashes on stock turbo cars with good results. The Ecutek is a bit more powerful then normal reflashes. But as David has said - these cams are not for the meek, even with a good tune the idle will be lumpy (I like it though ).