Im sending him my new FAST to get ported and matched to my AFR 205s. Looking forward to some nice gains. 
FAST 90 porting
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
FAST 90 porting
Any of you guys that have experience porting the FAST 90 intake, are you having issues with oil contamination affecting the porting procedure. I have proably 500-700miles on my intake, and the only guys I've talked to so far will either not port it after install, or charge a lot more. I offered to take it apart and clean it but Ron at Vengance said the oil contanimates the intake and makes it tough (Read; impossible) to port.
If it's that bad after 500 miles, I afraid it might COME APART in another couple thousand
If it's that bad after 500 miles, I afraid it might COME APART in another couple thousand
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
I would not expect it to have too much trouble. For porting the fast you just need a die grinder or dremel tool with a grinding bit or sandpaper. All you want to do is take away the ledge in the intake runner by the cylinder head. They are not hard to take apart and clean yourself if you want. I used brake cleaner to clean mine a while back. Just make sure you remove all gaskets and do not put any brake cleaner on them.
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
I hadn't heard that the ported FAST and the 205s didn't work well together. In past conversations I've had with Tony, he stated that the "minor" tweaks he made actually helped the low and mid range a lot, so I assumed they weren't "hogging" it out as much as jsut "tweaking it"
Race Director
Joined: Mar 2001
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From: Whippany NJ
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Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
The entrance on the stock DART heads is very conservative....a properly ported FAST is about .100 wider leaving a lip thats going the wrong way (the manifold being actually larger than the port entrance by .050-.060 per side.
It will cost you part of the gains you are paying for in the first place....
Tony
It will cost you part of the gains you are paying for in the first place....
Tony
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
The entrance on the stock DART heads is very conservative....a properly ported FAST is about .100 wider leaving a lip thats going the wrong way (the manifold being actually larger than the port entrance by .050-.060 per side.
It will cost you part of the gains you are paying for in the first place....
Tony
It will cost you part of the gains you are paying for in the first place....
Tony
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
The entrance on the stock DART heads is very conservative....a properly ported FAST is about .100 wider leaving a lip thats going the wrong way (the manifold being actually larger than the port entrance by .050-.060 per side.
It will cost you part of the gains you are paying for in the first place....
Tony
It will cost you part of the gains you are paying for in the first place....
Tony
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
I've got them and LOVE them.
They were low cost, so big bang for the buck. (left money for other mods) My dyno #s are right there with all the other big name heads (All else being equal) and my actual performace #s match or exceed the #s guys are posting with the high dollar heads
They were low cost, so big bang for the buck. (left money for other mods) My dyno #s are right there with all the other big name heads (All else being equal) and my actual performace #s match or exceed the #s guys are posting with the high dollar heads
Le Mans Master
Joined: Nov 2005
Posts: 5,451
Likes: 2
From: East Peoria Illinois
i installed a ported FAST last night on a 383. I bought his old FAST and will be porting it myself. its way easy. I think people dont want to port a used one as, if somethign happens, or its flawed somewhere and they trash it, they dont want to pay for it. oil makes no difference. its a 2 piece so it comes apart for easy cleaning....
Racer
Joined: Aug 2005
Posts: 309
Likes: 0
From: Riverdale Utah
yep just take the little ridges off the runners, and there are also a few spots up higher that can be smoothed. basically follow the ridge you took off about 1.5 inches up into the runner to be sure your gaining everything. its pretty simple, just keep everything in a smooth transitional cross section and be sure not to have a bottleneck and then opening up and such. only go as big as you can go further up the runner.
hope that makes sense.
hope that makes sense.
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
i installed a ported FAST last night on a 383. I bought his old FAST and will be porting it myself. its way easy. I think people dont want to port a used one as, if somethign happens, or its flawed somewhere and they trash it, they dont want to pay for it. oil makes no difference. its a 2 piece so it comes apart for easy cleaning....
I am fairly comfortable porting heads. (I ported the Darts I have on now) but was told by a WELL known FAST 90 porter that removing material in the wrong area of the FAST would have a detrimental affect on it's performance.
Former Vendor
Joined: Mar 2004
Posts: 1,518
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From: Valencia CA
It's no different than an intake or exhaust port....remove material in the wrong place and your larger port will flow less air. Ive seen 240 cc intake runners flow less than our 205 cc runner....the proper shape (and taper regarding manifold runners) is far more important than size.
Tony
Drifting
Joined: Feb 2006
Posts: 1,585
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From: New Hartford IA
What about the port matching Tony? If the head was in the path of the intake runner would you EVER open the head up (like a 1/8" max) or just use epoxy in the runner to build it up? I figure epoxy, but always worry about it coming out and ending up in the head.
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
I use epoxy on some of my personal stuff buts its always best to avoid it if possible. There is always a possibility of it working itself loose from the heat, fuel, oil, etc.
Tony