High compression and pump gas. Yes I have searched
You sir are quite the gear head !!! Kudos to you.
I actually just found the calculation of advertized intake duration, which this cam is 273. Divided by 2 = 136.5. Add lobe sep of 115 = 251.5. Subtract 180 = 71.5 and using that number in dynamic comp calc gives me 8.41
Excellent ! I still may go with the stage 2 which is slightly more aggressive BUT I really want torque down low. As much as possible. I am not really interested in HP at 6500 and instead average torque from say 2000 to 4000 rpms
Decisions
Thank you again
I actually just found the calculation of advertized intake duration, which this cam is 273. Divided by 2 = 136.5. Add lobe sep of 115 = 251.5. Subtract 180 = 71.5 and using that number in dynamic comp calc gives me 8.41
Excellent ! I still may go with the stage 2 which is slightly more aggressive BUT I really want torque down low. As much as possible. I am not really interested in HP at 6500 and instead average torque from say 2000 to 4000 rpms
Decisions
Thank you again
Thread Starter
TECH Apprentice
iTrader: (4)
Joined: Aug 2007
Posts: 337
Likes: 1
From: Crown Point, IN
You might find this interesting, then. The IVC on the BTR2 is .....44.5, same as the BTR 1. They will basically have the same peak torque and HP RPM. The S2 will carry further due to more overlap. FOr compression, etc, all your calcs are the same for both cams. The IVC and EVO are basically the same. Only difference between the two cams is the amount of overlap. Increased overlap will affect primarily your off idle to 2500 RPM. The S2 will be stronger from 4K to redline.





