North American Turbocoupe Organization



Motorsport adjustable cam gear????
GT350R Offline
Senior Member
#1
Ok, who has directions for one of these? I just found one on the 83TC and wonder how the hell you read it?

Needless to say, its coming off and going on the GT.
GT350R
(sold Sad ) 87 5speed, Motorsport head, [email protected]+2, [email protected], gutted or ported everything & all the typical junk.
84 Gt350 2.3T T-top
84 Turbo GT 418rwhp

My Garage
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Pete D Offline
Administrator
#2
The good news: I have one. The bad news is:It's still in the box. Here is the way I think it works. Note the indicator marks on the very outer circumfernce, just like the regular sprocket except there is more than one. Just inside of the belt teeth are designations like "2R", "4R" (for retard) and "2A", "4A" ect (for advance). Now go to the center of the sprocket and note the channels cut in it and the same designations as the outer circumference 2R, 4R..., 2A, 4A....
Now the fun part; decide where you want to run you cam - retarded or advanced and by how many degrees. Lets use 4* advanced as the example. Before removing the stock cam sprocket, get everything to TDC, just like if you were putting on a new belt. Loosen/remove the belt and remove the stock cam sprocket. Find the grove in the center of the adj. sprocket marked 4A (4* advanced). Slide the new sprocket on the post such that the 4A grove slides over the alignment pin and install the bolt. Now find the 4A mark on the outer circumfence and turn the cam so that mark lines up with the middle mark on the back cam cover. The cam is now set to 4* advance. Put the belt on without moving anything and your good to go.


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NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS.
Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.
Pete Dunham


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