can you port an LS6 intake to match your heads and throttle body????? and if so how much bigger will the injectors have to be?>????

 

Why would you need bigger injectors just for a ported intake??

I believe you can port it, but I wouldn't port a piece of composite plastic.

 

more air and more fuel???? but can you port the intake is my first question? or should i get a new Ligenfelter intake??

 

I wanted something different so I went with the Lingenfelter intake.

You need to check the duty cycle on your injectors as they run now. Then you'll know if its time to upgrade. The addition of the intake only without a cam will not make you need injectors.

 

It (intake manifold) is made out of composite, so it is not recomended that you grind on it.

 

keep your ls6 intake as it is and spend your money elsewhere. You won't need new injectors until you are around 425RWHP.

 

I got a FAST 78 for sale in the classifieds section, and acutally since your sig says you have an 85MM TB, i remember a guy porting the opening of the fast 78 to 85MM (since the rest of the fast 78 is exactly the same as the 90)

 

I don't think there is a huge gain to be had by porting it. If you got that aggressive, t would bust through the 3mm Nylon 66 runner walls.

 

I have a ported LS6. Gained me a few HP on the dyno. I was up about 5 RWHP after porting the intake and installing an UDP. The gains would have been 8 - 10 RWHP higher, but switching from stock wheels and 245 tires to TT2's and 315s limited my gains. Also, no need for larger injectors, it wont skew your a/f much at all, plus closed loop will adjust for it anyway.

 

well on the way i have a G5X1 cam and a set of Dart Pro 1 Ls1 heads that will be ported and polished and if it is necessary i may get the lingenfelter intake to match the heads to get full use out of it and then new injectors would that be a good combo????

 

I wouldnt get the lingenfelter intake. If anything get the FAST, otherwise just stick with a stock LS6. Should be plenty for you.