ATI Cog set up is here!
Thanks Kyles Girl
I can't wait till the cogs are here either, these LT1 guys are getting a little brave. Maybe you and Kyle can go on a trip to ASP and light a fire under ol Lee for me lol.Kyle, Your chick is

J

Later
Kyle
I got the new ones in today. I enlongated the tensioner slot until the tensioner pulley physically hit the GM Idler that is located just above ATI's tensioner, but the s/c still won't line up with the s/c mounting bolts/ bracket. It is just off about an 1/8 of an inch. If I had a smaller tensioner pulley now, MAYBE it would work. Or Clints tooth count of 72T and 29 or 30T, I know it would fit cause his does. Well time to go bash my head in for awhile more.J
i'm sure i saw a larger diameter pulley somewhere, i think it's off a vette or something, i'll look around an tell you if i find anything.
The Best V8 Stories One Small Block at Time
Last edited by frcefed98; Feb 1, 2004 at 11:15 AM.




I would think that it would be noisy, but it's still tensioning the belt

Whaddaya guys think? I am going to throw a burrito down my gullet and get to work on this.
Jeremy

PS WHY THE FU@K Does ATI make a cog kit for a Nissan Z?????
http://home.comcast.net/~gbazan/cog4.mov
2.5 megs
I ran out of light and its damn cold outside, but I did take it for a spin and all seems good. I'll double check belt tension tomorrow, looks good now about an inch of play. I took her to the dyno shop but the owner was kinda busy to check it for me, but my buddy Anthony Dickson gave it a once over and said the belt felt good with the right amount of slack. I ran the tensioner under the belt instead of the tensioner above it. I really tightened the tensioner screw down(one on the side of the bracket) and marked where it sits with a sharpie to see if the tensioner moves down any. I'll do more boost checks when the PCM has a few more miles, this is the first run out with the new tune. I did see 10psi right away though

Neal, No **** huh, woulda thought HIGH HP cars would get cog options from ATI from the get go, especially when ATI know's how bad the belt slips on the LS1 F-body HEY ATI
Get your heads out of your a$$e$. FU@King Low HP Nissan gets a cog
J
Last edited by frcefed98; Jan 31, 2004 at 08:03 PM.
Jeremy

I liked the video........is that the noise of the cog pulleys I can hear over the supercharger, seems like its belt noise..........
with a steel bracket to prevent flexing and the cogs the setup should work REALLY well

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!
Last edited by Black LS1 T/A; Feb 1, 2004 at 04:32 AM.
Lee did great work on the new cogs, the crank cog came with the 5/16 dowels(I didn't have to ask this time) installed. And the s/c cog has a longer neck now so the spacer(s) aren't need to space it upwards on the s/c. Here are two pics of it.


I am glad I got it "finished" last night, as you can see in the video the sky is quite cloudy and it snowed all night. The car now has snow all over it and the driveway is a sheet of ice.
This is far from over, I still have to talk to lee and tell him how it went. Like I said maybe he has a better idea on how to work the tensioner issue.
Bos, the noise is the belt whine, sounds like a gear drive
Its awesome. You will like it, its very intimidating. You can barely hear the s/c whine now.J



