BYBYC5

adv.282/282
.050 224/224
IVO 6 Btdc
IVC 46 ABDC
EVO 38 BBDC
EVC -2 ATDC
i wont disclose the shop or grinder but i wanna know how it comparse to TR/ XE XE-R grinds
its a 224/224 570 lift 110lsa 106 icl...... also your thoughts on this cam. ported 5.3s 11.5 CR
and a 3600 2.3STR converter and 373s...
its all the info i have on the cam card,

Beast96Z

iTrader: (21)

It looks to be a "normal grind. Not even a XE, much less an XE-R. Looks like it would be kind to the springs though. If your looking for a tougher lobe, you might need to sell that one. Looks like a Lunati grind. I got my cam in the other day thinking it was going to be on a XE-R lobe, and it was no where near that. It's for sale now.

BYBYC5

well i had it custom ground so its what i want, its easy on the springs and should make great power. i just didnt know how it compared to the other lobes out there
does anyone know how these valve timing events compare to a tr224 or a XE/XER 224
i take it that if 2 cams were 224 @.050 and the adv was 277 and one was 282 that the lower number = more agressive lobe?

Jorday

Right. Here are some comparison numbers for you
advertised/.050
XER 224 273/224
XE 222 275/222
Lunati B1 283/221

As you can see the B1 lobes are really lazy compared to the others. That's why the B1 doesn't idle all that great considering it's only a 221/221 114. With the XER lobe profile, you would need a 234 lobe to get an advertised duration of 283. Some people seem to think the TR cams are XE lobes, which would be incorrect.

Jordan

BYBYC5

so i would be correct to say that a 224 110 lsa with and advertised at 282 would idle like a monster compared to an XER 224 110?

Visceral

iTrader: (1)

not a monster, but with 110 LS, neither are going to be "smooth".

Beast96Z

iTrader: (21)

Both cams being on a 110, there really wouldn't be much diffrence. You can take the advetised duration and subtract it from the .50 duration. The smaller the diffrence, the more aggresive the lobe. Harder lobes like the XE and XE-r were designed to provide better vacum and other things to make them idle better than traditional cams.

BYBYC5

so the chariteristics would be about the same but tuning would me a little more timley on the standard lobe cam, kinda like the hot cam and a custom grind comp cam with the same specs, same cam but diffrent tunning?

Beast96Z

iTrader: (21)

Assuming you had 2 cams, one on a comp magnum lobe, the other on an XE-R. Both cams are identical in lift duration blah, blah. The XE-R will require diffrent tuning because of the midrange charicteristics that the cam is known for. Basically, diffrent lobes make power in diffrent RPM bands so they will require diffrent tuning to truly be "dyno" tuned.

BYBYC5

TTT

BYBYC5

any more comments

sbrown99TA

I think that the tuning would be similar for the 2 cams. As far as I know, the tuning is more about telling the PCM what to do when XX happens than telling the PCM to just do whatever, whenever it wants.