Has anyone NOT had a problem with their FAST 90mm TB?
12-30-2004 | 05:04 PM
#5
My FAST dosen't look as if it is going to need another twist in the spring. It pulls back pretty hard and feels if it has plenty of pressure. Not sure if FAST started doing the fixes that people came up with here or not, but I did them to mine before installation to make sure I have trouble free operation. It's not hard to do. Took me about 30 min for all of it.
12-30-2004 | 05:12 PM
#6
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From: Miami
Originally Posted by Beast96Z
My FAST dosen't look as if it is going to need another twist in the spring. It pulls back pretty hard and feels if it has plenty of pressure. Not sure if FAST started doing the fixes that people came up with here or not, but I did them to mine before installation to make sure I have trouble free operation. It's not hard to do. Took me about 30 min for all of it.
Beast, I read your fix write up in another thread that's active right now. I've read many posts describing the fix in similar terms as you have described (only thing is, without the TB in front of me, I'm at a loss as to what 'Peen the Bearing" means- is this to flatten or bend it?)
Did you come across a write up with pics during your investigations? Or did you fix it yourself by self diagnosis?
Much appreciated.
12-30-2004 | 05:17 PM
#7
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From: Miami
Originally Posted by SouthFL.02.SS
Beast, I read your fix write up in another thread that's active right now. I've read many posts describing the fix in similar terms as you have described (only thing is, without the TB in front of me, I'm at a loss as to what 'Peen the Bearing" means- is this to flatten or bend it?)
Did you come across a write up with pics during your investigations? Or did you fix it yourself by self diagnosis?
Much appreciated.
Did you come across a write up with pics during your investigations? Or did you fix it yourself by self diagnosis?
Much appreciated.
Answered myself with search
https://ls1tech.com/forums/showthrea...fast+90%2A+fix
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12-30-2004 | 05:31 PM
#8
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From: Miami
From another thread:
Thanks!!!
Now let's get the thread back on topic. Anyone with a smooth install/application?
Originally Posted by Beast96Z
The idle air screw should be a no brainer. The stock bolts are just to long. Shorten them down till they fit. The throttle bracket (where your throttle cables hook) has a small set screw on the rear side of it. Back it out and run a small drill bit down to till it hits the shaft. Spin the drill till it makes you a mark, then remove the braket from the shaft. Your throttle spring will come off. Now drill a recess that the set-screw can sit in snuglly. Not real deep, but enough for the screw to go into. While the braket is off, do your bearing "peen" mod. For the bearing "peen" mod, you have to have a small punch. The throttle shaft that goes through the center of the TB has a bearing on each end. You have to go around the edge of the bearing and and "peen" the aluminum onto the bearing so it can't come out. Do this on both ends. Now reinstall the spring on the shaft and start your braket back on. You should be able to figure out how to get the spring back onto the shaft. It requires the work to be done on the end of the shaft so you can spin the braket to get the tension back on the spring. Once you have the tension, just push the braket and spring into place and put your set screw in. Maybe that helps???
The idle air screw should be a no brainer. The stock bolts are just to long. Shorten them down till they fit. The throttle bracket (where your throttle cables hook) has a small set screw on the rear side of it. Back it out and run a small drill bit down to till it hits the shaft. Spin the drill till it makes you a mark, then remove the braket from the shaft. Your throttle spring will come off. Now drill a recess that the set-screw can sit in snuglly. Not real deep, but enough for the screw to go into. While the braket is off, do your bearing "peen" mod. For the bearing "peen" mod, you have to have a small punch. The throttle shaft that goes through the center of the TB has a bearing on each end. You have to go around the edge of the bearing and and "peen" the aluminum onto the bearing so it can't come out. Do this on both ends. Now reinstall the spring on the shaft and start your braket back on. You should be able to figure out how to get the spring back onto the shaft. It requires the work to be done on the end of the shaft so you can spin the braket to get the tension back on the spring. Once you have the tension, just push the braket and spring into place and put your set screw in. Maybe that helps???
Thanks!!!
Now let's get the thread back on topic. Anyone with a smooth install/application?
12-30-2004 | 05:42 PM
#11
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From: Miami
Originally Posted by JS
Nope I followed the tweeks and mine works lawlessly...
I didnt have to touch the spring,I thought I might be after everything its fine...
I didnt have to touch the spring,I thought I might be after everything its fine...
But thanks for the response....
Originally Posted by spanky
I thought (and hoped) the "new batch" TBs were corrected and trouble free. (?)
Shawn
Shawn
12-30-2004 | 05:51 PM
#12
does the fast tbody have a hole in the blade like the stocker does....my TPIS does not and its almost like its creating a suction effect and is sticking opening and closing, but when car is off, it feels perfect and works flawlessly
actually the whole pedal feel is different when the car is on and off, when off it feels just like the stock one did
actually the whole pedal feel is different when the car is on and off, when off it feels just like the stock one did
12-30-2004 | 05:57 PM
#13
Originally Posted by SouthFL.02.SS
Now let's get the thread back on topic. Anyone with a smooth install/application?
Beast,
Great write-up...do you, by chance, have any pics of your TB after the tweaks?
12-30-2004 | 06:00 PM
#14
The new one has the revised arm but I didnt see the peen marks in the tps area on the one I just got from Fast for a customer.U still will need to do the peen mod if u want it to work correctly.
12-30-2004 | 07:52 PM
#15
TECH Junkie
Joined: Dec 2001
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From: Lakeland, FL
Mine was a smoot install 
Just didn't operate that well after the install
Mine took a dremel to the blade, some touch up work of the bore with a dremel, and an extra wind of the spring but now it works perfect.
Just didn't operate that well after the install Mine took a dremel to the blade, some touch up work of the bore with a dremel, and an extra wind of the spring but now it works perfect.
12-30-2004 | 09:38 PM
#16
Originally Posted by LawmanSS
Can we keep it a bit off topic for just a little while longer...when "peening" the housing to retain the bearing...is it just one ding per bearing or several around the circumference of each bearing?
Beast,
Great write-up...do you, by chance, have any pics of your TB after the tweaks?
Beast,
Great write-up...do you, by chance, have any pics of your TB after the tweaks?
12-30-2004 | 10:03 PM
#17
Originally Posted by Beast96Z
You will need to peen it a few times. I did 6 equaly spaced around the circumfrence. I can take a pic of that, but I've already re-installed the bracket on the shaft so It's isn't coming back off.
12-31-2004 | 01:55 PM
#18
I installed mine without touching anything. Just had to clearance the throttle cable bracket because it was hitting my waterpump with the LS2 intake. It's been working flawlessly so far.
12-31-2004 | 02:58 PM
#20
Originally Posted by black_z
How do you like the LS2 intake Tim? Any dyno results from it?
I'm trying to get it setup so I can get some back to back dynos between the LS2 and Fast 90mm vs my LS6 and ported TB and possibly a modified LS6 with 90mm TB