Hey guys and gals, got a set of Sunbelts Stage 3 cams for my 325is, 2.5l, 11.5:1 CP pistons, moneyshift valve cutouts from VAC, Pauter rods, crank worked, ATI damper, S54 oil system, megasquirt, M50 manifold, etc. Looking for some setup info. I have heard 3 degrees retarded on the intake cam, small vanos shim from Bimmerworld etc. Haven't found adjustable timing gears. Anybody run this setup? Have any knowledge? ZF trans. Running in SCCA STU, currently have a built 3.91, probably switching to the 3.64.
Chris Leone
chrisleonemotorsports.com
roll cages, repairs and racecar fabrication
1984 318i now 325is
1994 325is STU racecar
1988 325is donor
Search, there are a couple good threads on Sunbelt setup. Helped me, but it’s been so long I don’t recall the details. One of the cams straight up, one retarded, vanos limiter, degree wheel and dial indicator, something... you don’t need adjustable gears, all can be done in vanos setup.
"It's not the people who vote that count, it's the people who count the votes."
-DNC
Are those sunbelts legal? "cams must have stock lift"???
99 M3 STU/ GTS3 Project
Chris Leone
chrisleonemotorsports.com
roll cages, repairs and racecar fabrication
1984 318i now 325is
1994 325is STU racecar
1988 325is donor
Nice! I'm jealous! Are you going to have it ready for the May race at daytona? I hope to be there and shake it down with amasa a couple of weeks before.
99 M3 STU/ GTS3 Project
Chris Leone
chrisleonemotorsports.com
roll cages, repairs and racecar fabrication
1984 318i now 325is
1994 325is STU racecar
1988 325is donor
It would be nice if someone would degree these cams and post up the numbers at 0.005” and 0.050” for the rest of us. I’ve done so for the S52, Elgin regrinds and the Schrick 264/256 cams already.
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