MIke (blackls1ta) Steel ATI bracket,
02-02-2004 | 02:42 AM
#7
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
I'm still deciding wether or not I want to order one of these, I got a bracket support made for the stock junk one, so I might as well stick with it...........might be a future upgrade to consider though since a few have had luck so far.........
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02-02-2004 | 04:19 AM
#8
Moderator
Joined: Nov 2001
Posts: 3,039
Likes: 8
From: Raleigh, NC
I figured I'd pop in this post with this thread.. it's GOTTA get lost in that popular long-azz thread BIGBOS started. 
Jason Escher's (Automotion Performance) steel bracket is the bomb.
(303-670-5011, $180.00. Jason once worked for ATI, so he knew exactly what to do to get a precise fit.)
I climbed under my car to look at the belt and check things after my trip to West Virgina (780 mile round trip, plus mileage that week while working there), and after repeated WOT's, some high speed runs, etc, (even with the smaller 3.20 SC pulley and MMS crank pulley) I see no appreciable wear on the belt. And it's not as tight as I have had to keep it before, either. But, I'm still getting 13 to 14 PSI peak. With my old bracket (the one on the right), I would have broken several belts by now.
The original bracket was fine up to 10 PSI on my stock engine. But, I began to have these problems at even that boost level with the 422. There is just so much more torque down low, and even on the big end, intermittent contact between the idler and bracket could be potentially devastating. The soft depressions that occur from tightening and moving the idler bolt exacerabates the problem, because the idler is pulled in even closer AND they are no longer precisely perpendicular to each other.
I don't see how I could live without it at the higher boost levels. If anyone is seeing unexplainable belt slip and dips, I STRONGLY recommend you check the surface of the bracket area where the idler pulley might meet the bracket and gouge it... but worse, yet, suspend rotation and chew or snap your belt!
Jason Escher's (Automotion Performance) steel bracket is the bomb.
(303-670-5011, $180.00. Jason once worked for ATI, so he knew exactly what to do to get a precise fit.)
I climbed under my car to look at the belt and check things after my trip to West Virgina (780 mile round trip, plus mileage that week while working there), and after repeated WOT's, some high speed runs, etc, (even with the smaller 3.20 SC pulley and MMS crank pulley) I see no appreciable wear on the belt. And it's not as tight as I have had to keep it before, either. But, I'm still getting 13 to 14 PSI peak. With my old bracket (the one on the right), I would have broken several belts by now.
The original bracket was fine up to 10 PSI on my stock engine. But, I began to have these problems at even that boost level with the 422. There is just so much more torque down low, and even on the big end, intermittent contact between the idler and bracket could be potentially devastating. The soft depressions that occur from tightening and moving the idler bolt exacerabates the problem, because the idler is pulled in even closer AND they are no longer precisely perpendicular to each other.
I don't see how I could live without it at the higher boost levels. If anyone is seeing unexplainable belt slip and dips, I STRONGLY recommend you check the surface of the bracket area where the idler pulley might meet the bracket and gouge it... but worse, yet, suspend rotation and chew or snap your belt!
02-02-2004 | 10:08 PM
#9
Teching In
Joined: Feb 2004
Posts: 5
Likes: 0
Just browsing..... I haven't spoken much in this forum but I noticed this thread. I'm on my way to the machine shop right now to pick up 4 more of these brackets. 1 is spoken.. Speak up now if there are more than three takers. I'm probably a month out from the next run. I'm glad to see they are working well.
Jasone Esher
AutoMotion Performance, Inc.
303-670-5011
Jasone Esher
AutoMotion Performance, Inc.
303-670-5011