UltraDyne roller specs?? 311 R8 - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech UltraDyne roller specs?? 311 R8

Print Thread

UltraDyne roller specs?? 311 R8 #1130437 12/09/11 12:35 PM 12/09/11 12:35 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer OP master
Bob_Coomer OP master Joined: Nov 2003 Posts: 6,293 Rock Springs	Anyone have a old UltraDyne catalog they can look up a grind for me? Anyone run this cam? I picked it up of Porter awhile back.. Anyways. The specs as I recall are real close too what i want. It says 311 R8 on the end. I know the lobe lift is .4544 and it has 278� at fifty. Id like to know the LSA, so I can a idea of where to put it in at as far as ICL goes. Probably 108 or so...just a guess. Also wondering how aggressive the lobes are, and will I be changing springs out every year with these 1.75 rocker arms... Lift is .795 before lash... [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: UltraDyne roller specs?? 311 R8 [Re: Bob_Coomer] #1130438 12/09/11 01:47 PM 12/09/11 01:47 PM
Joined: Jan 2003 Posts: 2,734 Charlotte, NC 4 446acuda master
446acuda master 4 Joined: Jan 2003 Posts: 2,734 Charlotte, NC	Here is the catalog from Bullet's site http://bulletcams.com/Masters/ultradynemasters.html

Re: UltraDyne roller specs?? 311 R8 [Re: Bob_Coomer] #1130439 12/09/11 03:33 PM 12/09/11 03:33 PM
Joined: Jan 2003 Posts: 4,045 Shelby Twp. Mi HardcoreB master
HardcoreB master Joined: Jan 2003 Posts: 4,045 Shelby Twp. Mi	From their catalog: "These are original designs with slower ramps and std. valve lash .026-.030" R11 316/283/202 .4544" The 'R' designates roller. The '8' designates 108 lsa. You can compare the profile to a similair CompCams grind and use their explaination of it's relative dynamics. But, IMO that is an aggressive profile.

Re: UltraDyne roller specs?? 311 R8 [Re: HardcoreB] #1130440 12/09/11 04:00 PM 12/09/11 04:00 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer OP master
Bob_Coomer OP master Joined: Nov 2003 Posts: 6,293 Rock Springs	Quote: From their catalog: "These are original designs with slower ramps and std. valve lash .026-.030" R11 316/283/202 .4544" The 'R' designates roller. The '8' designates 108 lsa. You can compare the profile to a similair CompCams grind and use their explaination of it's relative dynamics. But, IMO that is an aggressive profile. I dont see the cam listed, I see similar ones. I know the 311 is adv duration, and R8 is listed as a master number?? Those numbers arent correct... The second number is Dur@50 which I know is 278� not 283�.. I will call them... [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: UltraDyne roller specs?? 311 R8 [Re: Bob_Coomer] #1130441 12/09/11 05:09 PM 12/09/11 05:09 PM
Joined: Jan 2003 Posts: 4,045 Shelby Twp. Mi HardcoreB master
HardcoreB master Joined: Jan 2003 Posts: 4,045 Shelby Twp. Mi	Well then how about: R24 311/278/197 .4544

Re: UltraDyne roller specs?? 311 R8 [Re: HardcoreB] #1130442 12/09/11 10:10 PM 12/09/11 10:10 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer OP master
Bob_Coomer OP master Joined: Nov 2003 Posts: 6,293 Rock Springs	Quote: Well then how about: R24 311/278/197 .4544 Thanks Sean..... [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1