New cam = new vibration???

fords2fast4u

Founding Member
Mar 27, 2000
1,426
2
39
Mission Viejo, CA
So, i took out my crower grind and put in a slightly smaller TFS stage 1... and now the thing is acting funny. It has more low end torque but i don't think that the top end is there. That may be due to fowled plugs or running rich, which i will fix soon, but the real problem is that the car vibrates now.

The engine still shakes about the same with this cam as it did with the last one, but now it feels like the driveshaft is out of balance (the aluminum DS is only 1500 miles old)

what gives? the timing is right at 12 degrees

could it be because i am using the GT 1.6's instead of the cobra 1.7 rr's? but i was running them both before with no vibration?
 
Doesn't seem to make sense..??? No vibes before the install??

I wouldn't think a RR chg would do that....you say it feels more like driveline...
I'm sure you went back and doublechecked everything...cam slide out and new one in with no issues??