Do I need to upgrade?

[Dale McPeters]

Originally Posted by QWKSNKE

Forgot to mention, if the tmoss porting is still as expensive as it used to be, I wouldn't do it. I would set that money aside for another intake. I don't think you will see any gain whatsoever from the porting.

Something along the lines of RPM II would work nicely

x3

Even though Tom does excellent work I have to agree the RPM-II or a box upper would be better and give you a lot more room to grow. The upper cobra intake is the bottle neck anyway.....unless you are running boost then all bets are off...

[93cobra1928]

Originally Posted by Dale McPeters

x3

Even though Tom does excellent work I have to agree the RPM-II or a box upper would be better and give you a lot more room to grow. The upper cobra intake is the bottle neck anyway.....unless you are running boost then all bets are off...

I wonder why he would say only the lower needs ported then? Everything I have read tech wise that he has posted seems like he knows his stuff.

I don't doubt what you say, I think you and the others are pretty sharp too. I just want to maximize my combo with the heads and cam I have now.

[QWKSNKE]

Originally Posted by 93cobra1928

I wonder why he would say only the lower needs ported then? Everything I have read tech wise that he has posted seems like he knows his stuff.

I don't doubt what you say, I think you and the others are pretty sharp too. I just want to maximize my combo with the heads and cam I have now.

Dale is right, the upper is what holds these things back. Trust me, I was partial to my cobra intake because it was one of two places on the whole car that said cobra. On my last combo, I ported the piss out of my lower and received no gains. Before I made the decision to sale, I was looking to purchase a good intake

The cobra intake is a torque maker though but for higher rpm cam such as what you have, you would benefit from the shorter runners of a RPM II while maintaining decent daily driving power.

I can tell you that the cobra intake likes 14 psi though

[89StangRompt]

is what i would do

[Dale McPeters]

Originally Posted by 93cobra1928

I wonder why he would say only the lower needs ported then? Everything I have read tech wise that he has posted seems like he knows his stuff.

Tom is pretty sharp and I will not take anything away from him on that....but everyone has an opinion and most of the time all of them will be a little different.

Originally Posted by 93cobra1928

I don't doubt what you say, I think you and the others are pretty sharp too. I just want to maximize my combo with the heads and cam I have now.

The RPM-II or a box upper will maximize your combo better than a ported cobra lower IMHO. At least that is what I have found from my years of experience....

Originally Posted by QWKSNKE

I can tell you that the cobra intake likes 14 psi though

Not anymore as it likes the NA route now....
The TFS-R that is taking it's place will like the 14-15 psi of boost....