anyone have a tr220 or tr224 cam card with all the specs on it. looking for adv. duration, and if anyone knows the dcr on them that could be helpfull too. anyone know if they are based on a comp cam lobe or crane or what?
thanks

 

From what i know the TR lobes are proprietary, so they don't release the lobe specs to calculate DCR and stuff...

However I did read some new stuff on the XER lobes your running, from what I read they broaden the TQ curve, so IMO if you switching out cams stick with the XER lobes, just play around with the duration, LSA and ICL to get what you want...

 

Correct. They are just a tad less aggressive than Comp's XER lobe. More aggressive than the Comp XE lobe. When you order a cam from TR they are ground by Comp and then cam doctored by TR. A sheet is provided when you get the cam. I believe my TR224 was 274/274 @ .006 duration.

224.7/223.1 .561/.563 112+4 on the card.

 

Online cam doctor says:

274/274, 224/224, .561/.563 112+4

IVO 29
EVO 73
IVC 65
EVC 21

Overlap 50 degrees

 

yeah i was just wondering if anyone had info, i thought about steping up to tsp224r,112+4

thanks for the info

thanks, I wonder why the adv. duration on the xer 224 is 273, and tr is 274, and the xe is 277? will that make a difference?

 

Those numbers have to do with the lobe profile, the ramping in/out rates.

 

so now you have the tsp220r and you want to step up to the 224r? The 220 feels small to you? I was actually debating selling the 228r and going with a 224r....it's a tough decision. I'm not sure how much low end the 228 gives up compared to the 224.

 

mine's in a 5.3, but yes 220 to 224. 220 feels good, just want a bit more out of it. and I want to hear it. 220 on a 114+4 is too quiet for me. made great power though, just want to get to 12's with the mods I have and without weight reduction, plus I am a big guy too, so that hurts et.

 

do you know what the dcr is on a tsp224/224 .581/.581 112+4 xer is?

 

Are your heads stock?