I'm working on a set of intakes and heads right now. The lower intake I have has the IMRC and I was planning on leaving it since my car is an '01. Since the butterflies are there I can't really do any porting to the bottom half of the lower intake but I've read that is better to keep that taper anyways to promote air velocity. I was starting on the heads tonight and I see that on the intake side the ports are already larger than the ones on the intake manifold. So I'm guessing I shouldn't open up the ports but just gasket match it and smooth it out. I'm wondering though if it would be a better benefit to remove the IRMC and open up the lower manifold intake ports a lot more to match the head? I'm not planning on going s/c so I'm not sure if it's a good idea to go that large. I plan on just doing the port work and a cam and I'm probably going to be done with it. Some info would help I don't want to go too far with the port work but I want to get the most I can out of it.

 

those things are supposed to help but if you think about it even when they're open they are still restricting air flow.....take them out and port it all the way through....thats what i did.....what are you using to port them?? if you have a good hand you can use a die grinder...thats what i used and i got them ported in no time....as far as taking out the imrc's its kinda difficult.....to take the blades out you need to take the screws out of them....put alot of force on them or the head will just slip out and cause the bolt head to strip....once they are out, take a die grinder and grind the rods down a little then they should just pull right out......then what i did was use a cutoff tool and cut off the rod to where just the rod goes through the first hole....not the port....then jb weld it in there.....and your good.....oh and be sure and leave all the metal shavings in


j/k

 

I'm using a Dremel with a carbide bit. It's kinda slow but I don't think I would want to go any faster with it for fear of messing up. So porting it all the way through isn't going to be too much even for N/A? I was hoping to not have to remove the IMRC but if that will yield the more power then that's what I'll do. What exactly do you do as far as the computer goes then? Will it throw a code or mess up anything air/fuel wise from having it removed?

 

im sorry i forgot that. you will need a tune or your car will run like crap....i would say a program tune will work. i got mine dynoed for everything at the same time

 

ok well I will want to do a run on the dyno anyways after the install so that works out. Where did you get your done at? I live just a little south of Nashville.

 

well i got mine at speedys in owensboro...it was a 2.5 hour drive for me but well worth it...greg know exactly what hes messing with...you could go to delk but i have heard mixed opinions on them...i have only heard good about speedys

 

definitely go to speedys for the dyno. Greg has people come from all over to get him to tune the car.

 

+1









sorry justin i had to lol

 

mine dident...

 

Awesome thanks a lot for the info.