Pursuit Reincarnation Dog
Join Date: Apr 2001
Location: Melbourne VIC
Well, some of you may recall my engine has been rebuilt a few times already. In that time I have seen a couple of cams and head combos and not all have been okay.
Here's my predicament:
After the first build (which I was way happy with) the compression was reduced and a BIG cam was put in. The bottom end died in the arse and it idled rough (and pigrooted majorly in low speed driving) but in fanging around with Laminge in Melbourne it didn't go too bad :D at all up higher in the rev range. Prob was it was a ***** in traffic.
Then the 220 cam was put back in but it dies in the arse up high now (above 4-4500rpm). A result of the lower compression perhaps?
So, after crunching a spreadsheet with some different camshaft specs I now find that the 220 cam seems a bit short in the intake side duration and isn't all that crash hot on lift (less than 0.500).
Has anyone got any input and experience in camshaft specs for the 302/347 XR8 spec engines? I was just after some independent thinking as I think I have found a good compromise cam. Must be driveable with a 5 speed and still have good mid range power.
SPECIAL NOTE TO LAMINGE:
Have you got the specs for your cam? Just wanted them for my spreadsheet as it was the same cam I had before.
BA'1.5' Pursuit 290
Lightning Strike / Reflective Orange Stripes
'General' Dog - AP's German Shepherd and Best Mate - 02Dec1998-15Dec2003.
'Pepper' Dog - General's and My Little German Shepherd Sweetie - 1996?-02Apr2006.
'Sako' Dog - My Beautiful and Pretty German Shepherd - 2001?-23Aug2006.