[HOWTO: Ghost Cam and VCT simplification]

3 hours ago, Roland@pcmtec said:

Is your cam timing oscillating? Show us a datalog of it happening and post the file up. 

It might be hitting the anti stall or the cam might be oscillating more than you want due to your load kicking it out of the overlap then back into it. 

If the cam is oscillating all you need to do is datalog what load and rpm it occurs at and adjust the cam timing there. 

If you find the rpm is dropping too low hitting the anti stall I would reduce the overlap and put -30 at say 600rpm as your own anti stall to stop it going that low. Anti stall kicks in at about 350rpm from memory. 

Thanks for the speedy response Rolland. Once I get some more time with his car I'll grab a log for you. Rn I have a more pressing diag issue I wanna sort with my ba xr6t but I will post that on diagnosis instead of here 🙂

[HOWTO: Ghost Cam and VCT simplification]

Howdy guys, not long purchased pcmtec pro to tune my ba xr6 turbo manual and wanted to give it some ghost cam along with my buddies bf mk2 xr6 na zf. My manual wasn't too hard at all and seems to work great however the bf I just couldn't get stable. Now matter how low I went in overlap it would hit overlap drop a heap of rpm then jump back up and just keep reving up and down. My ba xr6t very slightly does this only once or twice before settling fine with 30 overlap. Any input into what I might be doing wrong would be excellent. Tried fiddling with rpm but being auto going too high loads up the tc too much and too low and it'll stall. Loving the program guys excellent work 👌