2,2 -> 2,4 Enhancement & Cams

[viejopatron]

Hi Kids,

I've decided to take the plunge. Upgrade the trusty, but anemic, 2,2 in my '71T to a 2,4. Using Wayne's "How to... ... Engines" as the primary guide, I'll stroke the engine with a 2,7 crank and go to the E cams. So's here my question...

It looks as if the timing values between a '71 T and E cam are significantly different. Possibly, a T could be re-manufactured into an E, however I'd like to hear from someone with experience on this option. Is this doable?

As always, the tradeoffs are reliability vs performance (vs cost).

[Wayne 962]

Your camshafts will have to be rewelded and reconditioned anyways, so I'm not really sure of the question. Is the question really, "can I use my T cams as cores for the E cam regrind?" I'm not sure on that one - I would check with WebCam or Elgin...

-Wayne

[viejopatron]

Good point. Actually, reconfiguring using the T's as cores is a better description. I do not want to recondition to T specs.

[Jay Auskin]

Look into Tyson Schmidt's post on "scruffy" in the 911 Tech. Forum. You can likely use alot of your existing components, and have them machined, reconfigured, etc...into a really nice motor.

[Wayne 962]

On a side note, a 2.2T is a not a good engine to start with. Honestly, it's better to just put the T aside, and buy a core 2.7. That way, you will get the crank, rods, and 7R case that is stronger... Plus you get the heads, etc...

Core 2.7 long blocks are very commonly found at about $500...

-Wayne

[red-beard]

Are you saying to use the 2.7's case in the 2.2 to 2.4 upgrade?

[viejopatron]

Red, I think Chairman Dempsey is suggesting More Power, i.e., why not spend the same effort and build a sporterized 2,7 engine. As Diablo runs pretty darn good, my hope was that the pistons could be overhauled, use E cams, decrease the flow restrictions, etc. and I could go from 125 hp to 165 hp. Anyway, thats the plan.

Jay, thanks for reminding me about Scruffy. I've now incorporated that thread into my Engine Notes.

[Wayne 962]

Whoops, didn't read the question carefully - I thought he was boring out his case. Nope, in this case, I would maybe look for a 1973 1/2 engine case for the strongest solution...

-Wayne