V8 cam specs wanted

[Boosted LS1]

The thing with camshafts for an oddball application is there is no 'right one'. You can spend days working out all the LCA's etc and eventually you'll come to a dead stop and pick something that's probably fairly well known and it'll still work fine so long as it's in the ballpark. Also, I don't think it's easy to measure a camshaft at all. I think it would be quite a painstaking task to really see what the specs are.

As for the Hardcastle list above, I worked out all the specs for those cams to see what they were like a long time ago. It took quite a while and that's just the starting point. Stuff them all into a software programme and it'll do your head in, lol.

Edited by Boosted LS1 on Wednesday 30th September 17:28

[v8 racing]

dbv8 said:

Podie said:

Might be worth a chat to "Rob" Robertson at V8D.

Hes not answering my latest emails so must be busy.
I think V8D are a bit secretive about their cam specs.
Ive also approached them about other parts and waiting for a second reply.

Really sorry i genuinely haven't recieved any emails, the last one i got was you are looking at swapping the cam in the winter time, i no the problem is my end hence i have just swapped email providers! [e-mail].

Right to answer a few questions about being secretive and cams etc. i am more than happy to help anybody out, the problem becomes where i give out information to somebody who is interested in buying a cam and they then plaster all that informatin over the web asking for a second opinion on how this cam will work, I am more than happy to spec a cam at no additional cost over an off the shelf cam but really really sorry no i wont let the specs out untill the cam is bought, if somebody wants to copy it, which has happened fine.

Anyway back on the subject for dbv8, yes you can work the lsa and lca out from the timing figures, the lsa is the lobe separation angle between inlet and exhaust, the lca is the lobe centre line of one profile either exhaust or inlet, it is also on the inlet side what you would normally time the cam in at. lets take revs cam as an example

crane 256
42-70/83-39, inlet means 42+70+180=292/2=146-42=lca of 104
exhaust 83+39+180=302/2=151-39=lca of 112
Lsa would be 104 + 112/2= 108
Which would mean the cam is dialled in 4deg advanced
hope this helps a bit

[Boosted LS1]

^ I was going to post something similar along the lines of:

You can spec a camshaft at great lengths to a non customer who'll then go and ignore you or buy something cheaper elsewhere because somebody on the interweb said so. So basically your time was wasted, again. You soon get tired of this.

Far more sensible to have an engine build in progress and then specify a camshaft to suit your existing customer.

ETA, repeat the following for all of the hardcastle cams and all of the rest out there and you'll appreciate why some people don't want to waste time speccing camshafts. It's a diy thing.

crane 256
42-70/83-39, inlet means 42+70+180=292/2=146-42=lca of 104
exhaust 83+39+180=302/2=151-39=lca of 112
Lsa would be 104 + 112/2= 108
Which would mean the cam is dialled in 4deg advanced

Edited by Boosted LS1 on Wednesday 30th September 22:27

[dbv8]

Look what i found...
http://www.wallaceracing.com/calc-cam.php
loads of other calcs too

[dbv8]

v8 racing said:

Really sorry i genuinely haven't recieved any emails, the last one i got was you are looking at swapping the cam in the winter time, i no the problem is my end hence i have just swapped email providers! [e-mail].

Rob i emailed your new address today.
If you read through you should have an idea of what im looking for.
Looking forward to your advice and making a purchase.