One fellow member has got his hand in these 2 cams and im asking in behalf of him and me (im buying the other).

Here are the specs:

# R 234-311-6 (the -6 might possibly designate an L24 cam)

At 0.008" lift: In open 63 deg Bef TDC In close 87 deg Aft BDC Ex open 97 deg Bef BDC Ex close 53 deg Aft TDC 330 deg duration at 0.008" lift 0.473" lift at valve

At 0.050" lift: In open 17 deg Bef TDC In close 39 deg Aft BDC Ex open 49 deg Bef BDC Ex close 7 deg Aft TDC Valve lash: 0.008" IN, 0.010" EX

Also found this, specific to the BRE 240Z 311/C-1 cam: At 0.001" lift: In open 33 deg Bef TDC In close 66 deg Aft BDC Ex open 66 deg Bef BDC Ex close 33 deg Aft TDC IN Lift at TDC 0.108" Total Lift 0.463"

At 0.050" lift: In open 14 deg Bef TDC In close 45 deg Aft BDC Ex open 45 deg Bef BDC Ex close 12 deg Aft TDC

IN Lift at TDC 0.108" IN Lift Total 0.463"

EX Lift at TDC 0.097" EX Lift Total 0.469" W/O eccentric bushing- Normal Tooth #3 hole

Firstly, can someone translate these? :stupid: Secondly what are the main differences between these two cams? What other hardware i need if im going to change either of these cams to my stock 240z, sorry for stupid questions.. Also does the head need porting ?

Thanks in advance

4 Cylinder versions:

http://www.datsun510.com/bbmail/2007-1/1779.html

http://www.the510realm.com/viewtopic.php?f=2&t=9551

I got this email from Mr. Brock himself:

Hi…. It’s been so long that I don’t have the specs on the 311 camshaft. It wasn’t a full race grind, like we used in our team cars, but a nice improved performance grind that took advantage of better breathing headers and intake with improved compression. I’d change to better valve springs, retainers and keepers than stock if you intend to use it. It’s perfectly usable on the street. Tune up and go to the drags to make some base line runs with you stock set up. Then install the cam and try again. I think you’ll notice the difference. If you like that, THEN go for a full rework on the head with tuliped valves and higher compression! Peter Brock

i got this email from mr. Brock himself:

cooooooolllllllllllllllllllllllll!

Digression: I just stumbled across this and never new about it: MkII variant of the Daytona Coupe called the "super coupe" with a "scoop" in the rear: http://www.motorsportscenter.com/printer_808.shtml

Edited September 14, 201212 yr by Blue