What does it take to optimize your 102 FAST??
Joined: Oct 2006
Posts: 2,608
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From: Webb City, MO...out in the garage
i ported my first FAST myself and saw good gain, but to put things in perspective, i'm waiting on my 2nd Mamofied FAST to show up on my doorstep 
Tony's work is 2nd to none and once you see it yourself, you'll forget ever paying money for it
Tony's work is 2nd to none and once you see it yourself, you'll forget ever paying money for it
Tony have you done many 102 Fasts for the LS7 head yet? I was just wondering because as you have stated earlier the "so called" consensus has stated that just a slight cleanup on these is all that is needed and if you go all out on these it is hurting them more then anything. I just still think if the right person (YOU) works them the right way that they will be much better then their so called cleanup?? Maybe it's too soon to tell or maybe it's just that the stock LS7 ported intake is that good!? What are your thoughts on this? 
Tony have you done many 102 Fasts for the LS7 head yet? I was just wondering because as you have stated earlier the "so called" consensus has stated that just a slight cleanup on these is all that is needed and if you go all out on these it is hurting them more then anything. I just still think if the right person (YOU) works them the right way that they will be much better then their so called cleanup?? Maybe it's too soon to tell or maybe it's just that the stock LS7 ported intake is that good!? What are your thoughts on this?
I heard back from one of the customers I helped with that intake and he picked up over 20 HP with the swap (some, most actually, are including it with a whole bunch of other changes....this customer just swapped intakes).
He was very pleased....this was over a stock GM LS7 intake.
It does require less work and less time to optimize so I actually charge a little less to port that piece (and the LS3....same deal....both are closer to optimal out of the box).
Hope this helps....
-Tony
I've done a handful of the new LS7 FAST units.....its a nice piece much like the new cathedral intake (much better design than the 90/92 versions).
I heard back from one of the customers I helped with that intake and he picked up over 20 HP with the swap (some, most actually, are including it with a whole bunch of other changes....this customer just swapped intakes).
He was very pleased....this was over a stock GM LS7 intake.
It does require less work and less time to optimize so I actually charge a little less to port that piece (and the LS3....same deal....both are closer to optimal out of the box).
Hope this helps....
-Tony
I heard back from one of the customers I helped with that intake and he picked up over 20 HP with the swap (some, most actually, are including it with a whole bunch of other changes....this customer just swapped intakes).
He was very pleased....this was over a stock GM LS7 intake.
It does require less work and less time to optimize so I actually charge a little less to port that piece (and the LS3....same deal....both are closer to optimal out of the box).
Hope this helps....
-Tony
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When porting a fast do you not actually need the heads that it will be paired up with to be fully optimized? For instance a ported 243 casting or an AFR 210 or say a TFS 235 I'm sure all have different intake runners openings. I've always wondered how people who send their fast intakes out for porting have it port matched to their specific heads?
When porting a fast do you not actually need the heads that it will be paired up with to be fully optimized? For instance a ported 243 casting or an AFR 210 or say a TFS 235 I'm sure all have different intake runners openings. I've always wondered how people who send their fast intakes out for porting have it port matched to their specific heads?
Thanks for all the positive comments etc.
Regarding this question I always inquire what the heads will be that I'm working with. Some of them I know already how large the intake port widths are....if I'm not sure I always ask my customers to measure the widths before I port the intake.
Usually they are between 1.050 and 1.100 but every now and they are thinner or wider than that depending on the situation.
-Tony
TECH Enthusiast
Joined: Oct 2007
Posts: 605
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From: NC
Tony,
What do you use to port plastic with? I just picked up a 102 that has been ported(not by you) and the finish doesn't look anything like your pic. I am thinking of smoothing out what's there and not trying to port anymore.
What do you use to port plastic with? I just picked up a 102 that has been ported(not by you) and the finish doesn't look anything like your pic. I am thinking of smoothing out what's there and not trying to port anymore.
Anyway....try getting some 120 - 150 grit cartridge rolls. I would probably steer you towards the 120. Getting too fine will just take longer and heat the plastic more as your trying to rework it. It doesn't have to be super smooth.
The bigger issue is not so much texture but shape....was it really properly reworked and opened up so there would be significant improvements in flow exiting the intake and entering the head?? Getting a handle on all the rough cartridge roll marks will make it aesthetically alot more pleasing but in functional gains it may be very insignificant.
Shape and cross sectional area are king....far more important than the surface finish although a nice surface finish after a well executed port job (with carbide cutters) always buttons everything up rather nicely.
PM or call me if you have anything more specific to your deal....
-Tony
My ports measured to 1.016" at it's wider section towards the middle/bottom third of the port and slightly tapers toward the top. On a side note; any idea of the port size here? They're P+P'd 243s I never got any info for.
I'll smooth the runners out by hand, but I'm not looking at trying to port anything. Just looking to smooth out any casting bumps or "flash" I think it's called.
Last edited by bayer-z28; Feb 12, 2011 at 08:08 AM.