Oregon Cam #346 - questions

csheehy said
For those using the Oregon Cam Grinders #346...
1. Are you happy with it?
2. What other engine mods have you done?
3. What RPM do you feel the power (street, not racing or WOT)
4. What's your stall RPM?

Here's my baseline: a long-rod engine using factory 198 rods, Wiseco PTS536A45 pistons, 1.70&1.45-inch valves, 9.5 compression, OCG cam #346 (see spec sheet two posts below), Elgin double-roller timing set, 8.25 rear with 3:21 gears, 24" height tires (215/60R14 X4), induction is a Holley 390 vac-secondary 4bbl through an Offy intake - optimized for velocity, power should be in the range of 210-230HP&TQ, '68 Barracuda that tips in around 2,900 lbs., 904 tranny with TransGo TF1 kit, rebuild will follow Tom Hand's as outlined in his book - pg.204 (overview>> DISKS: BorgWarner[BW] or Raybestos[Ray]- smooth rear, waffle grooves front, FT CLUTCH CLEARANCE: .015-.020 per-fiction-disk, KICKDOWN LEVER: 3.8, KICKDOWN BAND: cast - wider if avail with BW or Ray std linings, OVERRUNNING CLUTCH: stock, LOW-REVERSE BAND: stock, REAR CLUTCH CLEARANCE: .030-.050", SERVOS: front/stock rear/billet, STEELS: stock-type, LUBE: synthetic). The pistons, lifters, valves, and spring assemblies are all lighter than stock. Valve spring pressure is in the range of 280-300#. (all theoretical, somewhat). Most of my driving is twisty and hilly back roads at about 40 to 50 mph The other 40% of my travels are highway 65-70.
So, what should my stall be?
My engine is at the machine shop, just doing my due-diligence, so I'm ready in the spring time.

PM me, I got my simulation back up and running and I can show you what those cams look like in comparison to others. The long duration is going to really roll off the torque in the normal driving range that seems like you are taking about.

example.
Slant six builders...Lets talk Cams

Which is interesting that the 817 cam is almost what Doug and I came up with... I wanted a bit more exhaust duration which helped a little with the higher RPM but other than that I am intrigued by that one... The 2016 I have has a lift in the 0.441 range and that is still even to much for the /6 heads (including adding the larger valves) based on the flow numbers Doug had that I use in the model. The benefits of lift for a stock NA head maxed out around 0.420"-0.430" or so. Unfortunately it looks like the ramp profiles they use may keep the lift down below 0.400" for that duration... Doug was researching the ramp profile to use when the fires occurred last year.