uhm... it's not updated... at least not to my knowledge.... it's a retrofit, but it's not that primative... the ecu from the 2g is very similar to the one in teh evo... however it IS a retrofit... so things aren't perfectly seemless. but that's not for this thread. seems like ecuplus is stacking up to be a dsmlink like unit for evos.

 

I say tomato, you say to-mah-to.

I say update, you say retrofit

 

You're both right. It takes some modification, but the 2G DSM ECU will work flawlessly in an Evo. The stock Evo VIII ECU isn't as "advanced" as you might think. The EPROM code has been customized for the Evo in my ECU, though this is not an officially-supported application by the folks at ECMTuning (DSMLink.com). The list of reasons I chose this EMS is enormous, however, I won't get into that in this thread.

Back to the topic at hand, I do not have anything further to report on cams. I'm sure TT will be in touch shortly with an update/solution.

 

They've had the car for over a week, I hope they're getting somewhere on it. There are a bunch of us that want to know the outcome.

 

TT is going to do the cam swap today, so hopefull we'll know more soon. They have been very busy with other work, and know I won't be able to take my car till Saturday, so I don't really mind them addressing it when they are able as long as it's done by the time of my return.

 

Final Update:

The first set of Revolvers were removed and checked with a micrometer for any obvious problems in manufacturing or wear from this experiment. They seemed "okay" and measured out similarly, though not exactly, when compared to the "known good" set sent in by Ogvw.

The next step was to install the replacement set of Revolvers in hopes that this would address our issues. They did the same thing. Using -4/-2, it idles lopey with a silent valvetrain, and at 0/0 we get an uncomfortable noise coming from the top end of the motor. Though we're not exactly positive what this is, it could just be that it's such a rough idle that the valvetrain is starving for oil to quiet it down. I can't really say for sure. I can say for sure, though, that this isn't piston/valve interference unless you believe this can happen and not bend valves. Again, the compression test came out perfect.

To re-confirm that this isn't a cam gear problem, Tuning Technologies got Unorthodox Racing on the phone and went over the configuration together. UR had TT do specific tests and measurements to ensure that things were timed properly. No problems were found with the gears.

Ogvw has spoken with TT and is out of ideas. Even he is not (to my understanding) claiming that it's a cam gear issue at this point, nor is he suggesting installation error. He's stumped.

As for me, I'm done with these cams unless Ogvw wants to personally figure out how they can make power on my car. Given that this was an option early on that was later rescinded, I'm not going to hold my breath on it. At this point, I have my fingers crossed that Ogvw will return the money I've paid for these cams, as well as do whatever he had in mind to "make it right" if I ended up not using them and out-of-pocket in terms of installation expenses. I've been patient, reasonable, open to suggestions, and genuinely dedicated to figuring out how to get these to work; however, it now seems impossible. I don't believe anyone could disagree on these facts.

I'd like to thank Tuning Technologies for their continued support and troubleshooting of this problem (though they'll get their thanks when I get my bill). Seriously, though, they've been great throughout this whole process. They've gone over and beyond to help me, and have no personal interest in seeing Revolver fail or succeed. In fact, they were even talking about stocking these cams if they turned out well. So, my point is that they're good guys who don't benefit from bashing a vendor without just cause. Moreover, being a small organization themselves, they empathise with Ogvw's position of underdog in the cam market. Lastly, ask around -- TT has a fabulous repuation from people that are very particular about their cars. Outside of using my own hands, they're one of the very few that I would trust with this sort of job.

Looks like I'm going to go with HKS and call it a day (or month, in this case).

 

dam man, sorry it didnt work out. i was lookinh into purchasing these cams, but i dont know now. hopefully everything will turn out good in the long run.

good luck

 

Were the lash adjusters ever checked or re-bled?

 

I can't feel 100% sure that the problem is the cams until you report back that the car is running 100% with HKS cams, so please make that one last update whenever you get the car back together. Good luck and thanks for the tireless updates and persistence.

 

sorry to hear they didnot work out...my Revolver cams worked great from the start
i made 435whp at 7350rpms...these cams pull hard on the top end.

 

Now I'm not sure what to do. I installed my 20g-9 today along with head studs and injectors, but I'm a little worried about having my cams installed next Friday. I guess I'll have to sleep on it.

 

Ditto. I was also thinking that myself.

 

There's gotta be a reason for all of this. Some people have made really good power on these cams, so that tells me it's possible.

 

- Yes. The lash adjusters were checked when the "known good" set of cams were installed. Everything was perfect, as per TT.

- I do believe that some people have made power with these cams. The thought has crossed my mind that the ones I've read about seemed to have head work done...which raises the question of whether or not the stock head is able to flow what the cams are trying to push through it. This is just a thought, so please don't take it to mean that I have proof of this. It's just really strange. It's like they're "magic" cams that need an activation spell or something, because we sure can't figure out how to get them to make power on my car.

- For what it's worth, I'm not the only one who was unable to make the expected power with these. I received PMs and have talked to folks througout this process that have had similar issue and just gave up to go with HKS. Everyone was interested to see if we could figure out the "trick" to get them to make power.

- Since the car was perfect with my stock cams at the beginning of all this, I'm rather confident that the industry standard HKS cams will work. However, I understand the need to hear that I was able to make more power with a cam upgrade of some kind, when I wasn't able to do so with the Revolvers. So, I will post here again when this happens. If TT is able, it may be later today.

 

Did you put your stock cam gears back on Scott like I asked over a week ago? This seemed like a possible cause of your issues from day one and could have been ruled out straight away with a simple gear swap. The Revolver Cams do not need any head work to make power, or "magic tricks", but do require tuning with a good engine management system designed for the Evo VIII. It seems everyone that makes power with these cams has an Ecutek, AEM, Autronic, Techtom Flash, or Utec, and an experienced tuner doing the work.

Links below show what I am talking about:

https://www.evolutionm.net/forums/sh...light=revolver

https://www.evolutionm.net/forums/sh...light=revolver