FAST 92mm intake repair
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
FAST 92mm intake repair
I just picked up a FAST 92mm intake with a couple of hair line cracks on the bottom of the intake next to the 2 support screws.
Does anyone know how or where I can get this fixed ?
Does anyone know how or where I can get this fixed ?
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
http://www.fuelairspark.com/fas/contacts/
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
For relatively minor repairs I would go the JB Weld route as well. You can also go straight to the horse's mouth and get info about separate manifold pieces. F.A.S.T. is part of the Comp Performance Group.
http://www.fuelairspark.com/fas/contacts/
http://www.fuelairspark.com/fas/contacts/
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Mine was broken through in 3 places, so I bought a new bottom. I think it was $300, which really pissed me off, since I'd bought the manifold used, and ported, for not much more. Of course, no valley cover bolts, no instructions, and no knowledge of needing same. I don't think it'd be a good idea to melt the plastic.
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
Mine was broken through in 3 places, so I bought a new bottom. I think it was $300, which really pissed me off, since I'd bought the manifold used, and ported, for not much more. Of course, no valley cover bolts, no instructions, and no knowledge of needing same. I don't think it'd be a good idea to melt the plastic.
Rough it up with some sand paper to give it something to bite on to ?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
Maybe do a search for plastic repair materials. Of course, who knows what the actual plastic material really is.
For the JB weld, yes. Rough the area up really good with sand paper. Way out from the cracks and cover more than you think you need to. Loctite lock weld works good too.
Anyone know what is causing these cracks? How visible are they? Sometimes I wonder if my 102 intake has a mysterious crack as it won't tune worth a crap in SD mode, but runs fine in MAF mode. I've had it off several times but can't find any cracks.
Ron
For the JB weld, yes. Rough the area up really good with sand paper. Way out from the cracks and cover more than you think you need to. Loctite lock weld works good too.
Anyone know what is causing these cracks? How visible are they? Sometimes I wonder if my 102 intake has a mysterious crack as it won't tune worth a crap in SD mode, but runs fine in MAF mode. I've had it off several times but can't find any cracks.
Ron
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
JB is some good stuff.
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
If they are as minor as you indicated, I would sand then clean thoroughly with either brake cleaner or maybe a little acetone if you have some. Test the acetone first to make sure it won't start trying to soften or dissolve the plastic. After you sand, it prolly wouldn't hurt to take a Dremel wheel and make a groove to make the crack a little deeper so the epoxy can get down inside better OR if you can "flex" the plastic to open up the crack a bit to get it down inside.
JB is some good stuff.
JB is some good stuff.
Time to start looking for some fuel rails.... OR.... possibly re-use the stock LS2 fuel rail.....
Racer
Joined: Apr 2012
Posts: 463
Likes: 5
From: Salisbury PA.
use devcon flow mix plastic welder 2 part epoxy. enough said. sand the crack, maybe even takea very small drill bit (smaller than 1/16") and drill the ends of the cracks to keep it from continuing to crack. sand the crack, clean with alchohol and apply the epoxy.
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Yeah, I know it sucks. I had to pony up the $300 to fix a problem caused by my own ignorance, but I was happy with the result.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Melting Slicks
Joined: Feb 2014
Posts: 2,725
Likes: 149
From: chicago area IL.
leaving stock valley cover bolts causes them to crack when tighten down to much, suppose to swap the valley cover bolts to button head bolts
when i installed my fast92 I was on a deadline for a dyno, I didnt have the button heads bolts and installed it any ways (not feeling good about it) i missed my deadline so i pulled it off to swap the valley bolts out glad i did the under side of it had marks from there the stock valley bolts made contact i'm sure if I left it, it would of cracked!
when i installed my fast92 I was on a deadline for a dyno, I didnt have the button heads bolts and installed it any ways (not feeling good about it) i missed my deadline so i pulled it off to swap the valley bolts out glad i did the under side of it had marks from there the stock valley bolts made contact i'm sure if I left it, it would of cracked!
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
leaving stock valley cover bolts causes them to crack when tighten down to much, suppose to swap the valley cover bolts to button head bolts
when i installed my fast92 I was on a deadline for a dyno, I didnt have the button heads bolts and installed it any ways (not feeling good about it) i missed my deadline so i pulled it off to swap the valley bolts out glad i did the under side of it had marks from there the stock valley bolts made contact i'm sure if I left it, it would of cracked!
when i installed my fast92 I was on a deadline for a dyno, I didnt have the button heads bolts and installed it any ways (not feeling good about it) i missed my deadline so i pulled it off to swap the valley bolts out glad i did the under side of it had marks from there the stock valley bolts made contact i'm sure if I left it, it would of cracked!