Mopar Cam- how many more degrees @.006 to equal at .200?
The comp XE 250 Closes the intake at IC 51 ABDC @.006 110 LCA 106 ICL
comp provides similarl cams with 108 and 111 ICL you can calculate the IC
.006 .020 .050 .200 lobe valve lift
VOODOO.701..250.........213...................454 108LCA IC about 49ABDC
Comp XE 250 250 .........206 ................ .432 110lca 106 ICL IC 51 ABDC
Comp Magnum 252 .......206.................. .425 110LCA
Comp Special 252..........206........//..........425 108lca
Comp Special 252 .........206.................. .405 111
Hughes.........???.......... 206........ 0.315 ........ 113lca
Howard .......252 229...206..126 0.316 .472 standard acceleration .904 HM2063164A
Lunati .........253 ..........204................. .427 10200260 UDHarold .842
Lunati......... 253..........208................. .454 VOODOO 10200700 .904
Howard .......252 229...205..118 0.293 .......3HF205293 High Acceleration .842
Howard .......253 226...199..101 0.260.........1hf199260 Standard Acceleration .842
3HF207297..254 231.. 207 ..120. 0.297
Comp 4X4.... 254 .........209.. 126 .311 .467 lobe 2901
HM2083190A 255 232 208 128 0.319 .479 711381-10 110LCA 106 ICL
MP 248......... . 256.......... 202 113............................410 112IDL?
1hf201273....... 255. 228... 201... 109 .......0.273
3HF209300...... 256 233.... 209... 122....... 0.300
Comp XE......... 256 ............ 212 ....................... .447 110lca 106 icl IC 54 ABDC
10200701...... 256........... 213 ....................... .454 Voodoo note 1
Jones ..............256 .......... 202 ...120 ..... .307 .461 note 2
HM2103219A 257 234 210 130 0.322
1hf203277 257 230 203 111 0.27
10200701 258 213 .454
Comp 4x4 256 213 130 .476 lobe 5902
20200714 258 207 .485 Voodoo HR
Howard 259 ......205................420 Street Farce 1
Howard 259 236 212 134 .329 .494
Comp 4x4 259 210 131 .474 lobe 3324
Comp 260 HE 260 212 .440 110 lca 106icl IC 56 ABDC
Comp Spec 260 212 .444 108 LCA
10200205 260 210 .441 Lunati High Efficiency
3HF213307 260 237 213 127.. 0.307 Aggressive .842
Howard ......261 238 214 134.. 0.329 .494 (used in AMC)
bhr209300... 262 236 209 124..... 0.300 Standard HR
bhr209310 262 236 209 127.... 0.310 Standard HR
Note we have to go to a 260 cam in either Aggressive .842 HFT or HR to equal 126 degrees @.200 lift of MOPAR the LOBE(s) above
SO HOW MANY DEGREES FOR A standard performance ,842 lobes
several have asked about 340 cam so here it is with a few of similar duration at .006
340 cam 279 210................... .429 2899206 intake @.006
Thumper 279 227................... .486 107 LCA IC 63 ABDC
Rattler... 281 227.................... .480
Howards 279 256 232 .......152 .357 .535
so how many degrees do we have to add to reach the 126 @200 of the Howard or Hughes
High Acceleration lobes and standard lobe
you'll notice that a high acceleration .842 lobe can't compare with a standard .904
Where do you want the Intake Close for your compression or build
Do you think the Voodoo is a high acceleration lobe?
note 1
VooDoos are true Chrysler profiles, designed for the .904" tappets.
That 213/.454" profile is about 5 or 6 degrees fatter at .200 than the Chevrolet one.
UDHarold
note 2 50% fatter @.275 than DC 260