Hottening T cams

[davidl]

Hello all.

I'm aware I havea pile of early T cams which i should do something with.

I know Elgin's do an E profile on them without welding.

What is the hottest we can go without adding material please?

David

[Wayne 962]

Probably that E profile. T cam cores are still worth $$$ because they can be welded. I would just trade them in on a set of 'S' cams...

-Wayne

[camgrinder]

The 911 E grind is all I will put on a T cam without hardface welding.

[davidl]

Thanks very much, John.

And the hottest for an original E is the improved S grind, yes?

I hear good about that grind.. but will it give the same or better ultimate power as the original s ?

Also, what is the most powerful you will put onto the original S these days please?

Great to have such experts round here..saves many hours!

Thanks
David

[Wayne 962]

What is it that you are really trying to do? You can't simply swap cams without swapping pistons as well...

-Wayne

[camgrinder]

The "E" grind works well in the "T" car with std T pistons. In fact there is a set on Ebay right now....
My favorite upgrade for the "E" lately is the Solex grind done on E lobe centers (102) which fit the E cores nicely.
Some cams will swap out using stock pistons. Some will not!
If your not sure ask.
The Mod-S grind we do is a good upgrade on the original "S" cams. I try to sell hardfacing when someone sends an original
"S" in for regrinding. We can weld and grind a set of "T" cores and save the "S" cams.
I just hate to grind down a good set of S cams.

[davidl]

Thanks again, John and Wayne.

This is all about stuff I have on the shelf which I'm trying to recycle as econoimically as possible..

And I would not dream of grinding good S, or for that matter E or solex cams!

I do have quite a few of these which are slightly damaged.. not enough to need welding, but needing a resurface.

Is the improved S grind possible on the E core?

And I assume the Carrera 906 is the hottest we can put onto the S cores without a weld..?

Sure I know 'bout the piston requirements.. tho' I have done it , just once, I would say that the T piston needs careful timing deckheighting etc if the E cam is to be used..interesting to learn someone else has actual;ly tried it too!

Thanks again..

David

[Wayne 962]

Originally posted by davidl
Thanks again, John and Wayne.

Is the improved S grind possible on the E core?

I think anything is possible these days...

-Wayne

[camgrinder]

Your welcome David.
The 906 grind will not fit the S camshafts.
way too small on the base circle.

[davidl]

Thanks, again.

So really a worn S can only be reground as an S, and the E-into- improved S is possible?

Thanks.

david

[camgrinder]

the improved S grind should only be ground on an original S cam core. It removes about .030" of material from the lobe. any more than that I do not like.
The E camshaft would lose about .045" of material. A little too much.
The solex grind on 102 l/c is the best on E cams.