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MG TD TF 1500 - supercharged roller camshafts

Anyone who has a supercharged roller camshaft on the BBS, please contact me for timing information.
laf48@aol.com
914 420 8699
rial small

Len,
What's up with the rial small, threadlist, tables1 ??
I see it a few times,, are you talking size???

SPW
Steve Wincze

I, for one, would be reluctant to contact anyone with such an obvious bogus name. I like to know who I'm talking to!
Ed
efh Haskell

Something is wrong here.
David
D. Sander

It is Len Fanelli's number and email address,, but the same start as that very long address a few days ago that messed up the view of this forum....

Steve
Steve Wincze

I also wondered why Mr Fanelli feels he needs to use an alias...
Peter TD 5801
P Hehir

Come on out Len - We still love you. Jud
J K Chapin

IF.. you have one of his cams cut for a supercharged engine, email him laf48@aol.com
or call him 914 420 8699

Since I have one, he emailed the following-

"Hello Jim, I just received information from a customer who advanced his supercharged cam 4 degrees, much more torque at a lower RPM, rev range stayed the same.
More to follow.
Best
Len"

Since I shooting for strong midrange, and not high rpm horsepower, this proves very interesting. I'd like a few more details on this.
JRN JIM

He sent an email out yesterday saying the same thing - I responded but nothing back yet.

As much as he touts his products it's strange he doesn't contact everyone directly...I'm sure he knows who we are.
Gene Gillam

Just spoke to a mate with the supercharged YT to which he has now fitted the B&G adjustable timing gear set @ 4 degrees advanced. He has been in touch with Mr Fanelli & this is what has spawned this thread. Pete reckons the acceleration "would break ya neck!" He absolutely loves it! I'm now thinking of doing the same. The gear from B&G costs about $200. Cheers
Peter TD 5801
P Hehir

I do not know how this happened.
I do have off set cam keys for $ 25., includes shipping
Len
rial small

The offset cam keys are clearly a much cheaper option & now that Pete has determined that the 4 degree advance is the business it makes sense to just use a 4 degree key, so I really don't need to spend the $200! The real beauty of the adjustable cam sprocket is that different degrees of advance can be "dialed in" giving you torque at the RPM of your choosing. (I believe the offset keys are available through Heritage here in Sydney for about $15). As I won't be needing to adjust the advance, once set, using a key's got to be the way to go. Cheers
Peter TD 5801
P Hehir

Someday I will install a roller cam so, in the meantime, I'd really love to know what "The offset cam keys are clearly a much cheaper option & now that Pete has determined that the 4 degree advance is the business it makes sense to just use a 4 degree key" means. Sometimes ignorance is bliss but probably not when dealing with the nuances of XPAGs. Thanks. Jud
J K Chapin

An adjustable cam sprocket allows cam timing adjustment, retarded or advanced, rather than just one single fixed position like most car engines.
There are bunches of these for Hondas and the like on ebay, but something for our cars would have to be pretty rare/custom made/expensive.

Instead of a FLAT, halfmoon woodruff key (or even "square" or "rectangular" keys), the top and bottom halves of the key are offset- shifted parallel sideways and no longer flat. Installing it one way would retard timing and switching it the other way around would advance it some degrees.
You can find offset keys as an original part in some lawnmower engines. I've made some flat ones offset by running into rocks!
The technology of computer controlled variable cam timing has really taken off. The Fiat Abarth has a magnificent hydraulic operated computerized system that could be the wave of things to come. Large diesel engines have done away with camshafts altogether and each valve is computer/hydraulic activated.
JRN JIM

I'm no whiz Jud but I'll give it a go. The timing chain sets the relationship between the crank & the cam. If you can find a way to fiddle with that relationship you will alter the valve timing, the point where the valves open & close in relation to the position of the piston. Advancing the timing means you will have more torque @ a lower RPM. Retarding it does the opposite. Racing guys like more torque at a higher RPM but this makes the car run rough at low RPM. In my day if you couldn't afford a wild cam the local hoons would crawl up & down the main drag on Saturday night with the choke out, hoping to attract a sweet young thing. An adjustable cam sprocket is a gear whose inside (hub) can be rotated in relation to the teeth & then locked by means of 4 screws. This means you have some degree of control over the valve timing. Once you find a position that meets your requirements you lock it off & the job's done. An offset key does the same thing. It fits into the keyway at the end of the cam & offsets the position of the sprocket. One method is adjustable & the other is not. Keys can be purchased with different degrees of offset from say 10 degrees advanced to 10 degrees retarded. A hot cam also alters the timing determining when the valves open & close, for how long & the inlet/outlet overlap. Hope this helps. If you Google this topic Jud you'll get a much better explanation. Cheers
Peter TD 5801
P Hehir

Jud, ask a professional or at least use "Google" for your answers from the pros.
Len Fanelli

Peter and Len, thanks. I get the gist of it now. Jud
J K Chapin

This thread was discussed between 08/02/2015 and 11/02/2015

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