The V8 Owners Forum -

thanx
Stephan

Hi Mark,
what are ur timing spex now? I think mine are also a bit too advanced.
Many thanx
Stephan

I had a JP duplex chain fitted and this was rubbish.
The wheels are ok, but the chain was far too long after, let´s say, 40000km.
I changed back to original items.

I measured a 4,6 litre engine just for fun when I took it apart and it was not even near the factory quoted CR. So, don´t assume that it is 9.35 even if the factory says it is. Measure the actual CR and determine how much you need to machine. Hi, was the CR more than 9.35 or less than that? Many th...

Me too,
thanx Kevin and to all other posters!

Don't forget to fit new lifters with the new cam and use the special lube and run it for 20 mins at 2000 - 2500 RPM without letting it idle, if it get too hot then shut it down and run again once it's cooled down, others have suggested spraying the rad with cold water helps keep it cool. Kevin. No ...

That´s what is on the way down in Nairobi at www.schuhmacher4x4.com .
They change the cam to the 3.9 cam and I think I´m satisfied again!!

ok

Hi, no it´s not a RPI engine. I bought a used RR block in 2002 with 20´miles on the clock and fitted all the ancilleries of my existing 3.5, including a Holley 390. With this change, I switched to Mallory dual point. The cam I was recommended to fit by a leading Morgan tuner in Germany, was the 3.9 ...

Hi,
sounds great, but I´m not sure if in Nairobi they are able to do the job of timing in etc.
So my idea is to go back to basics ( 3.9 ).

Hi Mike, at the moment there`s a Piper 270/108 ( old style ) with the following spex in an 4.6 with Edelbrock 500, a Mallory Unilite and 4.6 heads ( ported and slightly polished otherwise standard ) CR 9.35-1 in a LR 90 V8: 1500 - 6000 rpm; 28-64-64-28; 272°, .445", 108° The cam I had before, w...

Many thanx for the spec, but what is the lobe center angle?
Is it more than the 108° of my 270, because someone wrote that the 108° is the prob!
And what is CCT?
I checked the carb or it was checked, this should be fine.

Speed was 110 km/h = 68 mph and the fuel consumption was enormous.
average 5l more than before the cam change.

Stephan, Sorry cant answer you question re cam specs dor the 3.9 cam but I'm sure somebody will. I have a question, you say the car is in Nairobi which I believe is at fairly high altitude so whilst the car is there you are going to suffer a significant drop in power, Tunisia is much closer to sea ...

Hi there and thanx,
does anybody know what figures the standard 3.9 efi cam has, especially
the lobe centre angle LCA.
Again thanx!