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FAST 102mm CATHEDRAL port testing to begin this weekend!!!

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Old 02-27-2010, 09:44 PM
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Originally Posted by chrs1313
the 5 or 7 so mm is not what I would be interested in...it is the complete redesign of the intake runners that gets my attention...from a air flow stand point and pressure drop they look alot more friendly by the pictures...alot less curves and a much nicer radiused inlet...
No one seems to understand this even remotely, they just look at the TB opening

Originally Posted by VeTTeMaNC486
I just read 10 pages of little elementry school kids bickering.
I laugh at everyone wanting thier exact combo tested, have people lost their ability to interpolate?
Old 02-27-2010, 11:12 PM
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Originally Posted by chrs1313
another thing that is interesting is that I peaks at 6k...isn't that low for a h/c/I car?


I tested VRX5 cam on 346ci 00 C5 it peaks at 6400rpm I think the cam is mild on LS2 but I bet the drivablilty is awesome on that car

I'm sure Ron will correct me if I'm wrong.
Old 02-27-2010, 11:33 PM
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id say impressive results especially with a ported LS2 (92mm) TB...

im definitely impressed. grated some guys are calling BS vs a ported 92, 96 what have you...but that testing was on a 92mm TB....

I'll just keep watching for more results and tests on this intake....33hp out of a bolt on intake is pretty impressive..
Old 02-28-2010, 09:23 AM
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Originally Posted by zacht
id say impressive results especially with a ported LS2 (92mm) TB...

im definitely impressed. grated some guys are calling BS vs a ported 92, 96 what have you...but that testing was on a 92mm TB....

I'll just keep watching for more results and tests on this intake....33hp out of a bolt on intake is pretty impressive..
...but we pretty much know what a ported Fast will do over stock. What we thought we were going to see is a old Fast vs new Fast design to see how much the new design has improved the product. People really can't make a call to jump from a 90 or 92 to the 102 based on the results so far.
Old 02-28-2010, 10:09 AM
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Stay tuned and be patient fellas. Ron will deliver on his promise, but it may take awhile for the oppurtunity to get all the testing done.

Seth over a HinsonSupercars and crew aren't doing any testing at all. Simply selling them and saying because they work. Cmon Seth as a CF Vendor you should be able to offer a little more information then "because they work".

Stick with Ron @ Vengeance and you'll get to see a few more a/b comparisons and then be able to intereperate the results according to how similar your setup is and then decide if the new FAST 102 is for you or not.

Thanks again Ron for doing this. You know I'm most interested in seeing how the 402's do. Got anything lined up for this week? How about Scoggins 04 zo6 (402) ?? That bitch is making some real power, if it picks up more the 5 rwhp with the 102 I'd be shocked !!
Old 02-28-2010, 10:09 AM
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Originally Posted by GTO1_OHIO
...but we pretty much know what a ported Fast will do over stock. What we thought we were going to see is a old Fast vs new Fast design to see how much the new design has improved the product. People really can't make a call to jump from a 90 or 92 to the 102 based on the results so far.
True. Since the 90 and 92 are now discontinued, I don't think anyone has a choice unless they buy used. IMO the most relevant tests (based on popular setups on this board) for the new intake would be:

- Stock cube h/c w/LS6 intake to LSX 102 (with either 90 or 102 TB)
- Stock cube h/c w/FAST 90 to LSX 102 (first w/90 TB, then 102)
- Stock cube h/c w/ported FAST 90 to LSX 102 (first w/90 TB, then 102)
- A stroker motor (whatever is available) with same intake as above.

Of course that is a lot of time and effort for any shop spend on proving the effectiveness of a someone else's product. You would think Comp Cams did similar A-A testing, but I haven't seen any hard data.
Old 02-28-2010, 01:50 PM
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A ported FAST 90/92 EQUALS a FAST 102
Old 02-28-2010, 06:45 PM
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Originally Posted by SLOC5LS6
A ported FAST 90/92 EQUALS a FAST 102
No. 95 even 96 < 102 anyone here can see that so it isn't equal. Really best thing to take out all the variables is to put a untouched 90, 92 and 102 on a fully built 346 with the same TB on all then do it again with a 400 inch or bigger built mill.
Old 02-28-2010, 07:18 PM
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Originally Posted by Intercooler2
No. 95 even 96 < 102 anyone here can see that so it isn't equal. Really best thing to take out all the variables is to put a untouched 90, 92 and 102 on a fully built 346 with the same TB on all then do it again with a 400 inch or bigger built mill.
A ported FAST 90/92 EQUALS a FAST 102 power productivity wise. Design wise, they are different. Either way, it's not worth swapping from a ported FAST 90/92 to a FAST 102.
Old 02-28-2010, 07:28 PM
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Originally Posted by SLOC5LS6
A ported FAST 90/92 EQUALS a FAST 102 power productivity wise. Design wise, they are different. Either way, it's not worth swapping from a ported FAST 90/92 to a FAST 102.
Agreed ...although all porting is not created equal.
Old 02-28-2010, 07:45 PM
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On my ls2 with a .595 .598 232 234 113 lsa, home ported ls6 heads, stalled 3600 auto 3.73 12 bolt. Car put down 403 rwhp with a ported tb and ls6 manifold. with a out of the box non ported fast 92/92 it gained 21 hp to 424 hp.
Old 02-28-2010, 07:47 PM
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I'm in as well. Lot of questions that need answering on this new intake. So far pretty much stock, but want to start in with headers (ARH), heads (thinking AFR), cam (still looking at different cams), intake / throttle body.
Just wondering with the 102 mm, what do you need to go from stock size lid (have the SLP lid) to the larger TB. In other words, are there speed shops looking at kits, more a DIY thing, what?
Old 02-28-2010, 07:54 PM
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I would be a good candidate for an out of the box 102/102 setup, then port it.

Sooooo......who wants to send me a free 102mm setup..LOL

Also what about the MAF? I'm running a 85mm delphi unit right now, wouldn't a 100mm unit help me match my 92/92 even as of now? I would think if someone was running a stock maf(ls1) thats 74mm that would show little no no gains going to any fast manifold.

If I get around to swapping out my 85mm for a 100mm unit I will post results.
Old 02-28-2010, 07:56 PM
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Originally Posted by dave5514
I'm in as well. Lot of questions that need answering on this new intake. So far pretty much stock, but want to start in with headers (ARH), heads (thinking AFR), cam (still looking at different cams), intake / throttle body.
Just wondering with the 102 mm, what do you need to go from stock size lid (have the SLP lid) to the larger TB. In other words, are there speed shops looking at kits, more a DIY thing, what?
Fast toys performance sells a 85mm lid and a 102mm lid to better fit the fast tb's



Here is my 85mm lid/maf setup. I have the fast 92 and it seems to work well.
Old 02-28-2010, 08:57 PM
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Originally Posted by silverz28camaro
Fast toys performance sells a 85mm lid and a 102mm lid to better fit the fast tb's



Here is my 85mm lid/maf setup. I have the fast 92 and it seems to work well.
no ac huh... ram air on there yet
Old 02-28-2010, 09:15 PM
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ram air on there yet[/QUOTE]

Yep, I have a home made setup that runs 2 4inch holes from the front vents in the plastic grill to the bottom of the airlid. I went from a 11.68 @ 115 1.59 60' hooking to a 11.569 @ 117.5 with a 1.64 60' slightly spinning, well worth the gain for about $60 and a few hours.
Old 03-01-2010, 02:21 PM
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Originally Posted by silverz28camaro
ram air on there yet
Yep, I have a home made setup that runs 2 4inch holes from the front vents in the plastic grill to the bottom of the airlid. I went from a 11.68 @ 115 1.59 60' hooking to a 11.569 @ 117.5 with a 1.64 60' slightly spinning, well worth the gain for about $60 and a few hours.[/QUOTE]

how did you geta slp smooth bellow over a 90 or 92mm tb?
Old 03-01-2010, 03:14 PM
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Have you done some testing we havent? From the results of this 102mm Vs an LS2 intake the FAST LSXR 102 is stronger than the previous 92mm... We NEVER made 40rwhp on an intake swap ported or not......

Im willing to bet this intake will show even more gains once we get into the larger cubic inch combos... Stay tuned for testing on a 440 LS7 stroker in the next two weeks.

Originally Posted by SLOC5LS6
A ported FAST 90/92 EQUALS a FAST 102
Old 03-01-2010, 04:15 PM
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Originally Posted by Ron@Vengeance
Stay tuned for testing on a 440 LS7 stroker in the next two weeks.

Cant wait,

will u test it over the ls7 intake manifold ?
Old 03-01-2010, 04:26 PM
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Cathedral port TFS 245cc heads with FAST 92mm VS 102mm


Quick Reply: FAST 102mm CATHEDRAL port testing to begin this weekend!!!



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