Skinny Kid

I've just received my FAST and opened it up on the bench to get started on the porting. It looks like there is a lot of room for improvement in there. Just wondering who has ported their own FAST and if anyone has before/after gain #'s for it. Also, how much is a Mamo ported intake worth over an out of the box version?

Justin

Quick Silver Z

Check this out.

http://forums.corvetteforum.com/c5-t...st-intake.html

http://www.ls1.com/forums/showthread.php?t=58941

zeevette

It's a pretty easy DIY. The pro porters really get a good price, but it does take alot of time, so I wouldn't call it a ripoff.

0Tony Mamo @ AFR

I find the second link kinda funny as the intake he thought he got a deal on wasnt one of mine (I can quickly tell by the shape of the port outlets for starters).

I know of a few other "Mamo ported" intakes that werent done by me either....LOL

Every now and then guys PM me with pictures to verify my work....this guy obviously didnt think to do that.

-Tony

PS....My porting is usually worth 8-12 RWHP over and above the typical 10-12 you usually see out of the box (depends on how well the heads and rest of the combination flow). A few have seen more but a net gain of 20-25 RWHP is usually about right assuming both combo's were dialed in before the swap (some people's gains include tuning gains in addition to increases from the manifold).

AU N EGL

I have seen some "home made" porting, that did very little

Get the porting done by some one who knows, like Tony, or dont do it at all.

Quick Silver Z

Tony, can you shed some light on a discussion from a different thread? Some say porting a stock LS6 manifold shows little or no gain, others say it does? Thanks...

0Tony Mamo @ AFR

Little gains....

I just sent a customer a ported 92 FAST and a ported LS2 90 mm TB for a C5 application and he replaced his ported LS6 and ported (Shaner) 78 mm TB. He still picked up 17 RWHP....some of that from the TB and some of that from the fact it was a ported LS6 intake used as a baseline (not stock). Even looking at the best of my average gains (around 25 RWHP), that means the total of the TB and the ported LS6 intake was around 8HP total....I promise you 3-4 of that was from the TB being ported.

Biggest problem with the LS6 intake is the real shortcomings of the intake cant be reached with a grinder and thats why "porting" one of those is of minimal effectiveness unless you can cut one apart and plastic weld it back together after the work is completed. I have turned down dozens of offers to port customers LS6 intakes and I always tell them the same thing....if your going to pay me in an effort to substantially increase perfeormance, pay me to port a FAST where the gains are worth the monies invested, even though that includes springing for a little more coin and dropping dime on the FAST (still the best game in town).

Not to mention the gains in throttle response and SOTP acceleration from the ported 90-92 stuff is worth the admission price in and of itself....

Hope this helps

Tony

chriswtx

here's a good thread with really good pics...

http://forums.corvetteforum.com/c5-t...d-90-90-a.html

AQWIKZ

I just installed my 90/90 setup and throttle response is much better than the fast 78 setup I had on my c5, I can definately feel a differance in the car. The manifold and tb are not ported yet, but it will be going to Tony later on this year. I have not been professionally tuned yet,waiting until I get all mods done, need headers to finish up.

golfinz

I was one of the lucky ones and got a used "verified Mamo" FAST. Thanks again for verifying the work for JR and I Tony!

slow ride

If you ported other things in the past and feel confident I'm sure you could do a good job, but I wouldn't tackle this as my first porting job. I did my own, but I've ported lots of stuff in the past.