I was just wondering if the cam's that RRM sells if it would be fine to run with a supercharger system, as that is probably the way I will be going. Thanks for any input

 

good luck, it will take some work to get the kit viable. the camshaft RRM sells it just better than stock, it was not designed for any specific aspiration. increased lift and duration, more overlap I believe. the cam guy I used told me that this engine likes a little more overlap regardless of aspiration.

 

In general superchargers do not like a lot of overlap because it has a tendancy to blow the charge out the exhaust port. I have no idea what the overlap is like on RRM's cam but most mild cams are well behaved as Dan says. If owners are reporting lumpy idles when cold then it probably wouldn't be my first choice. I haven't put one of these heads on the flow bench yet so I can't say for sure how you will gain from added lift. Those sorts of things would be important in deciding how to make more power on a supercharged setup.

 

From what i found from building hot rods is that porting the head, cutting the valves and exhaust are key things to do. I don't know how much air as SC will push for the RA. The most i may think is about 4-6psi. Any higher may starve and cause damage to the engine. Unless you can hook up some type of piggy and upgrade fuel components. You won't really like the SC on the RA IMO. Robs power too much. Better for V6 and up. Just think about it and do some research. I wish you good luck. And if you can pull it off good for you...

 

the cam machinist I use said this particular engine tends to run better with more overlap regardless of turbo or NA, and I tend to agree. the engine runs hot as it is, and you can't boost too high so it's not like the turbo will be overworked to compensate for the additional air being blown through the cumbustion chamber. it will cool it more and make sure all the spent gasses are out making the actual burn cleaner and more reliable.

also, the RRM cam's low and mid range lobes are untouched, so the spool up wouldn't be affected until after ~3600 RPM anyway. the Mivec cam is anything but mild stock, and is even more aggressive on the base cam.

RRM has said before that their base cam would be a good addition to either an NA or turbo car, and everything I have read and heard about the RRM cam indicates more lift, duration, and overlap.

from my research a cam that will function well with a turbo application will fuction well with a supercharger application. maybe I'm wrong

 

I don't think you could put an FI application on this engine, regardless of how good the factory ECU is, without at least being able to control fuel. I would think that controlling timing would be that much more important on a supercharger, since you will see positive pressure at very low RPM's. either way you could let the knock sensor control timing, it's just better not to. don't tell me you can't because it's been done, just telling you the facts.

From what we have all seen/heard from the maybe one dyno chart that RIPP could come up the SC would be a very good addition to this engine. I just wish allens car hadn't caught on fire because he was the first reputable member on here who wanted to try the supercharger. the one other guy got flamed so bad because of how he tried to introduce himself; so we don't know if his car caught on fire or that he finally got the kinks out and it was running

 

true.....The down side though like you said that the knock sensor is going to do what it is supposed to which is what you don't want. A supercharger does work well with a setup made for turbo. I have driven SC Tibby's and Honda and they sure don't like the low boost at all. Really doesn't do much on the dyno and ET. Sounds cool though. You are also correct about the overlap and the mivec system. I don't want a pissing match between us.. I am just stating what i have found through my years building hotrods. I know they are different but there are people out there putting SC on 4cyl. mustangs... Keep the info going Dan...

 

thanks for the info guys..I'll probably go with the same setup as allen (stage 2 sds 11psi w/ meth) should be fun..I kinda want to do it just to say I did it, and give people on this message board another view, like you said allen's car burned up..so I want to give it another go! Thanks again.

 

make sure you take your time and see if you can catch potential problems as you go. remember, you will be the first end user to install this succesfully if you do, so all the kinks are still there for you to work out. Or maybe you are gonna have RIPP install it? I believe the first guy did that and he had a few problems.

 

I'm not going to be able to drive down to do that...My buddy is a heavy duty mechanic, and knows a lot about cars. He's going to help me do the install, he's building up an XR4Ti right now too..Allen said he'd give me any pointers and what not if I need them, so hopefully between him and my buddy, we can get this system running right..

 

yeah, but just to reiterate you should look at everything to make sure you see any potential problems before you consider yourself done. Allans car burst into flames, regardless of reason, directly after he installed the kit and I would hate to hear another story like that on here.

 

check out rpw they have 3 different cams available for our engine

and i hope this works for you... i've been tossing and turning about the super charger vs turbo application for awhile... but since there no members with it done its hard to get anny indo or feed back...

keep with the updates please

 

Didn't the 5th injector fuel line burst and that's why the car caught on fire?

 

Don't quite remember, but he did say in another post something about torque between shifts ripping a line off somewhere..

For sure Dan, I will definitely keep an eagles eye out for potential problems. I might be going for the internal work on the engine first, pistons and rods, pnp intake and head. What can a guy do about the crank? I haven't been able to find any information on better crankshafts, or the like. I've just heard of them getting knife edged.

 

i believe if i remember correctly a fuel line ballooned and burst under increased fuel pressure...
look for lancer bbq on here