LRX2 Camshaft

gotlund said:

Hi,
i saw this numbers in the tuning guide, what do they stand for ? i'm thinking of building my own tourge cam
LRX2 = 272 / .407" / 107°

/Martin

Click to expand...

where are you from Gotland?

that is the valve duration, height of lift measured in imperial thou's of an inch and lastly what is called the lobe centre for timing. it's a copy of another cam and i have these cams for sale:

http://cgi.ebay.co.uk/HUSABERG-RACE-CAM ... 1432wt_732

I'm flow testing heads and valves at present and part of this is to gain knowledge of the best cam lift (in MM!) so if you care to drop on me a PM with your engine size and year, arena, comp or street etc i can guide you perhaps.

as for doing your own cam after the above question: well, i have a do-it-yourself-nuclear bomb here and i thought i could do that as well - i had about the same chance i reckon.

regards

Taffy

hi taffy,
i use an elko piston 1. 82mm crank('03) 2. oversise titanium valves(37,32)3. R&D racing ignition(rev limit 10,200) so what cam is the best for me? the torgue or the top end? what is the gain after all?

johnyberg said:

hi taffy,
i use an elko piston 1. 82mm crank('03) 2. oversise titanium valves(37,32)3. R&D racing ignition(rev limit 10,200) so what cam is the best for me? the torgue or the top end? what is the gain after all?

Click to expand...

johny, please read carefully. I suggested he PM me and also I only got first verbal reports of the tests on the valves 20 minutes ago. I've known about the heads and ports for 2 weeks. It has cost me over £400 to modify valves (needlessly for the wrong ones!) and have the tests done so I'm not letting facts out just guidelines.

regards

Taffy

johnyberg said:

hi taffy,
i use an elko piston 1. 82mm crank('03) 2. oversise titanium valves(37,32)3. R&D racing ignition(rev limit 10,200) so what cam is the best for me? the torgue or the top end? what is the gain after all?

Click to expand...

depends what cam you're running

if you've got an 08 cam in the 650 and want more power don't get the x-2, it smooths everything out but peak power is down and down about 1000rpm off the top. peak tourque is about the same but spread out more and off idle tourque increased. search for "madero x-2" he said the same.

but you've got a 53 or something cam right? taffys put up the differences for that on his ebay ads

and there's the dilemma... a 2004 644 (650).....do you rev it and suffer or not?

me thinks all the problems came from owners and not engines so I would go with the 'A' grind i sell for same middle and more top end.

regards

Taffy