Drivetrain Larger intake and exhaust valves
#1
Larger intake and exhaust valves
So I recently got a very good deal on a JCW engine kit for my '06. Anyway, one of the reasons ia got a good deal was it Was missing the emblems, the stickers, and the JCW certificate. It does have the engine label though.
Anyway, MINI may not be willing to install the kit so I am thinking of the RMW street cam. I was wondering if it worth going ahead and installing larger intake and exhaust valves in the head?
I will not use the supercharger, it is the same that i have plus I have a 15% pulley. I will do the JCW tune at first then later probably get an RMW tune. Might get a header later on but concerned with the noise.
Anyway, looking for any thoughts.
Anyway, MINI may not be willing to install the kit so I am thinking of the RMW street cam. I was wondering if it worth going ahead and installing larger intake and exhaust valves in the head?
I will not use the supercharger, it is the same that i have plus I have a 15% pulley. I will do the JCW tune at first then later probably get an RMW tune. Might get a header later on but concerned with the noise.
Anyway, looking for any thoughts.
#5
Larger valves are a great idea!
Our cars are exahust flow choked, so doing work in that area will really create benefits. Different head modifiers have different philosophies about what to do. Some I've talked to leave the intake at stock size and only change the exhaust, others do both.
A cam is a good idea too, as you take your off to do the swap, it's pretty easy to just put a different one in!
Matt
A cam is a good idea too, as you take your off to do the swap, it's pretty easy to just put a different one in!
Matt
#6
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#9
The kit I got did not have the supercharger. The guy I bought it from had already sold it to another party and could be why I got the kit so cheaply. It was also missing a few stickers (ECU, Fuel Door) but the rest of the kit is brand new and I have verified that.
Davisflyer, I am also going to contact Dan at Grassroots to get some ideas. As for the header, while I like it I am still concerned about how loud it is. I heard yours on the videos you submitted and it sounds great but it does seem like it is still a little loud. May have to pay the penalty in the long run.
Wonder what Jan would charge to do a little work on the head (nothing radical)? I think at least exhaust valves, a little more mild porting, the street cam and possible header will make for an excellent street setup. Of course a tune to go with all of this.
Besides performance my biggest goal is to maintain reliability. I do not want to track the car and even want to take it occasional trips so I have to keep it balanced for all of this.
#10
Davisflyer, I am also going to contact Dan at Grassroots to get some ideas. As for the header, while I like it I am still concerned about how loud it is. I heard yours on the videos you submitted and it sounds great but it does seem like it is still a little loud. May have to pay the penalty in the long run.
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