Early e-88 like this?

How common are those heads in Oz?

Yep, we got those early heads too, just like the one you posted.

I will tell you, at TDC when I was putting on the head, the chamber on cylinder 3 (IIRC) was so laid back around the spark plug area, you could see all the way into the chamber and see the head gasket and the hone marks on the top part of the bore....EASILY!! And the valve was not at full lift either.

Your E88 head has the wrong part of the chamber laid back, the side on the short side radius of the port. When you think about that for a moment, it makes perfect sense to lay back the area around the SPARK PLUG the most for ease of entry into the cylinder through the port.

No, not very common anymore, they've been snapped up because they're good to use for NA L28's.

You want one?

Edited March 17, 201411 yr by ozconnection

YES! Too bad you are half a world away.

They are probably as hard to find as the MN-47 over here.

Like to see a direct comparison between the P-90 and that head.

Edited March 17, 201411 yr by madkaw

Steve,

UPS delivers world wide...

Charles

With such a small, compact chamber you may not need a whole lot more timing. Mapping out the ignition system and leaning the fuel out a bit will make for substantial gains, not that it's not already a strong engine.

With such a small, compact chamber you may not need a whole lot more timing. Mapping out the ignition system and leaning the fuel out a bit will make for substantial gains, not that it's not already a strong engine.

You're right, total advance may be on the money already and converting over to megasquirt control of the ignition timing may build the midrange torque up a bit. I'll do some more work to it over the next few weeks and see what I end up with. There's potential there, I just gotta find it. Tuning is the key!

I made that statement , but when I dynoed my L24 I backed off my timing from 37 to 34 and there was no difference in HP. So only time and a few $$ at the dyno will tell.

Heat...lots of it.

It has begun to melt and distort many of my split convoluted electrical wrap that I've used close to my headers. I now wrapped the primary pipes with thermal wrap and I'm considering building some more protective heat shields. I'm even thinking about using cold air pick-up points because it seems silly to be picking up such hot under bonnet air and expecting the engine to be making any more power or torque.

Also, it's time to start working on my cold start idle, some more work ahead and hopefully some good results to go with it.

Damn...just as I was getting the idle tuning sorted, the water pump seal gave out and leaked coolant everywhere. It was the last of my "good" water pumps with the cast impeller.

Hmmm, to use a readily available, pressed metal impeller water pump or the last one of my LD28 pumps? I think I know the answer to this one already...

Edited March 25, 201411 yr by ozconnection