Where did you get this from? I've never heard it myself, but if it's true I need to do some checking......Rob, Chris Wright swears up and down that his R4+ is an exact match of the specs of Simon's cam. Remember the "+" is in there. That's supposed to indicate it's a different cam I guess.
That's a Monster! Biggest possible issue right off the batt is the overlap. Would have to run some #'s, but you'd need a monster ported head with a properly designed/built header for sure!Now that I'm thinking about it Rob, I have a P4452899 sitting here.(300/300 cam) I have the high performance rockers, but I don't have the solid adjusters yet. Do you think anything can be done with this cam as far as a turbo application with the right calibration? The St. Louis guys were considering experimenting with it in our Charger drag car.
You guys are forgetting one roller camshaft. The old Taft S2+. 114 LSA, .493" lift. That one has 6 more degrees intake duration 223° @.050, and three degrees less duration on the exhaust 213.5° @.050 than the R4+ (roller s-60). Much closer to S-60 specs than the milder S2.Cam specs;
S60 slider; 112 LSA, Dur [email protected], .499 valve lift
F4 roller; 115.125 LSA, Dur 236/220.5 @ .050, .478/.468 valve lift
R5 roller; 114.625 LSA, Dur 227/219 @ .050, .490/.501 valve lift
R4+ roller; 112 LSA, Dur 217/216.5 @ .050, .495/ .498.75 valve lift
Note; The F4, R5 and R 4+ specs are courtesy of Todd N.
So on paper, the TU R4+ Looks like a roller replacement for the S60 slider, albeit with slightly less duration. Having said that, I don't Know it has less duration because the S60 slider specs were taken from Mopar catalog which also stated 260/260 duration (@ .006 I'm guessing)
The R4+ @ .006 is 263.6/ 268 so who knows, could be nuts on...…...
Really appreciate you saying that, as the only reason I have remained on these forums is to inspire/ pass on info ect.: A lot of my being open minded about this stuff stems from reading your story thread that inspires the idea that possibilities are endless.:smile2:
You guys are forgetting one roller camshaft. The old Taft S2+. 114 LSA, .493" lift. That one has 6 more degrees intake duration 223° @.050, and three degrees less duration on the exhaust 213.5° @.050 than the R4+ (roller s-60). Much closer to S-60 specs than the milder S2.
I've put this camshaft in 5) 2.2 engines. Has very good street manners, idles cleanly, and pulls hard to redline. Nice no compromise camshaft.
Not all vendors are sell sell sell!! TU has always given me the straight scoop with accurate info. They talked me out of upgrades that I didn't need and saved me BIG $$$.I love that, because I usually take everything the vendors say with a grain of salt! They want to sell sell sell! But at what cost sometimes?
I was messaging Chris on Facebook when he told me about the R4+ and sent me links to Simon's thread on TM. If I was smart, I should have just compared the cam specs myself. I'm never really in a hurry with these builds, though. I do need to pick one up before they're gone. He quoted me $325 and said he only had a few left. This was a year ago.