I'm looking to get my stock ls2/3/7 throttle body ported along with my ls3 manifold. Just wondering if anyone here has experience with the different companies out there.

So far I've looked into ls2portworks.com and vmaxmotorsports.com. Both seem to have a good reputation. Vmax does cnc throttle body porting which seems to be the way to go but I'm not sure. Any experience?

 

After seeing the intake move with the throttle rap in a LS2portworks tbss intake (or L92 intake) id rather put my money into a real intake. Just my .02

 

LS2 Port Works doesn't do truck intakes any longer because of that one issue. The car intakes are and always have been just fine.

 

Good info i havent looked into a p&p truck intake in a long time

 

ls2 portworks suffered and took a hit from that tbss intake and stopped porting tbss intakes. apparently they went overboard on porting that intake and it left lil plastic on top causing the flex. however, to my understanding from all ive read is that they made things right with that customer which was the right thing to do so gotta give them credit there.

i have an ls2 portworks ported l92 intake and love the work on it, better than the home porting i did and i am nit picky. they just went the extra mile on theirs when they cut the intake. i am not that daring yet . my ls2 portworks is sturdy.

 

That video is a L92 intake. The top panel has more surface area than a TBSS manifold and less natural arch. With a large engine and big vacuum swings the L92 is subjected to much greater forces than the TBSS ever was. The TBSS is and was always inherently stronger. TBSS manifolds never had that flex. That one L92 intake was the problem and the way that deal went... well... there was no interest in dealing with lynch mobs so the TBSS was dropped, too. When pushing the boundaries, sometimes things don't always work out.

 

I've seen a bone stock fast lsxrt flex pretty badly...nowhere near that bad but bad enough for the owner to chunk it. complete BS IMO

 

Just FYI, I lost 5rwhp below 3500rpm, then gained 4rwhp at peak, from a home 78mm ported TB. I'm traveling for work but can post up the dyno graph later. Pulls were about 20 minutes apart and consecutive pulls with the same TB netted almost identical results (1-2rwhp difference).

 

that's what those pillars in the middle of the intake are for.

 

Wow, ive never seen that before.

Anyone running a port works ls3 intake?