View Single Post
  #74 (permalink)  
Old 04-17-2018, 03:29 AM
Gaz64's Avatar
Gaz64 Gaz64 is offline
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: Brisbane, QLD
Cobra Make, Engine:
Posts: 2,773
Not Ranked     
Default

Quote:
Originally Posted by FatBoy View Post
Update:

I gave up on the original idea of using Doug's used H&M cam and followers and Brent spec'ed up a new cam for me specifically for my engine and intended use.

This is what he came up with:

...........................Intake................. ..........Exhaust
Total Lift:.............. 589" ............................ 600"
Duration @ .050":.. 242" .............................244"

Valve Timing @ .050": ........ Open ........................ Close
Inlet: .............................. 17 BTDC ................... 45 ABDC
Exhaust: ......................... 58 BBDC .................... 6 ATDC
Intake Centreline: .......... 104 degrees
LSA: ............................ 110 degrees

The engine is now all back together and back in the car and the dreaded cam break-in procedure has been done, so I'm now ready to hit the road, apart from one thing........me!

A couple of weeks ago I managed to totally detach my left bicep while at the gym. I needed surgery to reattach it, which involved drilling an 8mm hole into my Radius bone and fastening the loose end on my bicep into it with screws and a metal "button" on the back to prevent it pulling through.

I can lift nothing heavier than a cup of tea for 4 weeks and then I can very slowly start adding some weight.

I'm hoping to be able to start driving again in a couple of weeks.

Thank you everyone for your help, especially Brent, who was very helpful and patient with my endless questions.

Paul
There's a lot of advance ground into that cam.

To give you an idea, it has 6 degrees of advance, take that out, we end up at 11/51 on the inlet, 52/12 on the exhaust.

So depends on what you want the engine to do.

I would like figures of 13/49, 54/10.

But your lift increase will certainly help.

Valve springs to match of course.

Gary
Reply With Quote