One more added.

[rhipsher]

I took my injector housings to work today and mounted them on an angle plate on the mill and machined the heads off the 8mm torx screws. It took some work to break the gasket seal and a little prying to get the coolant horns off. The screws were so severly corroded that while I was working them back and fourth off the screws there was red powder coming out everywhere. Tomorrow I'll drill the screws out and chase the threads. Then I'm going to have to flycut .02 off the mating faces. The edges got a little dinged up prying them off.

[WB9MCW]

Nice that you have the ability to do this work yourself.

[A26B]

Considering you have access to all these fabulous machine tools, why don't you set up and bore the plenum & inj hsngs to 36 or 37mm (whatever the finished dia is going to be) about 0.500" deep. That way you don't have to be concerned with keeping the diameter round and properly matched to the mating part. Will also keep the potential for mating surface damage very low since you won't have to do hand port work in that area. Do the hand work deeper & blend to the machined bore. You will end up with perfectly matched ports. While you were set up, you could also mill out the biforcation between the ports & then just smooth out & finish the knife edge in the center.

Would save you a LOT of hand work & will end up with a superb job.

Just my 2c worth.

[rhipsher]

Originally Posted by A26B

Considering you have access to all these fabulous machine tools, why don't you set up and bore the plenum & inj hsngs to 36 or 37mm (whatever the finished dia is going to be) about 0.500" deep. That way you don't have to be concerned with keeping the diameter round and properly matched to the mating part. Will also keep the potential for mating surface damage very low since you won't have to do hand port work in that area. Do the hand work deeper & blend to the machined bore. You will end up with perfectly matched ports. While you were set up, you could also mill out the biforcation between the ports & then just smooth out & finish the knife edge in the center.

Would save you a LOT of hand work & will end up with a superb job.

Just my 2c worth.

I thought about doing that. It would be nice to know the X Y locations of the ports. Jerry all I need is the injector housing gasket sketch dimensions old buddy ol pal. I know you have them. Other wise I would have to use calipers to get a ball park. I'm also goint to need to machine that thick finalic plenum gasket to 36mm also. Having access to all the machines is just one of the perks to being a machinist. I have to squeeze the ZR-1 parts in between other jobs. And sometimes I just have to wait.

[rhipsher]

That's exactly what I need to know. Otherwise I would need to indicate on each bore. That's 48 bores all together. That print will be a huge time saver. Thanx Jerry.

[USAFPILOT]

so...when are you going to be ready for mine.

[bldavis11]

Originally Posted by bldavis11

I'm of the general notion that these cars are just that... cars. It's quite hard to screw something up so bad that you can't fix it. They should be worked on and used, not just collector pieces. That being said, I think it takes balls to start screwing with plenum and IH geometry in an un-fixable way without ever having done anything like this before. My hat is off to you DIY P/P'ers.

Originally Posted by rhipsher

I took my injector housings to work today and mounted them on an angle plate on the mill and machined the heads off the 8mm torx screws. It took some work to break the gasket seal and a little prying to get the coolant horns off. The screws were so severly corroded that while I was working them back and fourth off the screws there was red powder coming out everywhere. Tomorrow I'll drill the screws out and chase the threads. Then I'm going to have to flycut .02 off the mating faces. The edges got a little dinged up prying them off.

Okay, so maybe you're not the typical DIY'er.