Some "Dynomite" Heads! - Page 2 - ZR-1 Net Registry Forums

Locobob · 12-21-2010

Some "boring" video footage.... get it.. boring haha... okay sorry I'm not that funny.

carter200 · 12-21-2010

Quote:

Originally Posted by Locobob

Some "boring" video footage.... get it.. boring haha... okay sorry I'm not that funny.

You got that right

Locobob · 12-21-2010

Quote:

Originally Posted by carter200

You got that right

The "boring" or the "not funny"??? Dont hurt my feelings now Carter

carter200 · 12-21-2010

Quote:

Originally Posted by Locobob

The "boring" or the "not funny"??? Dont hurt my feelings now Carter

It's all good. Just giving you a little pre Christmas "goose"

RICKYRJ1 · 12-21-2010

Thanks for the starting info! Dynomite is getting good head

. Locobob gave me a great education in porting & cleared up a lot of misinformation that I had., Dyno will be more than happy with the work. Keep this thread updated with you progress.

GOLDCYLON · 12-21-2010

Quote:

Originally Posted by Dynomite

I have to keep those Fire Sale Heads untill I get the 650 hp ZR1 going

Then you have to talk with Robert as I left those Very Nice Fire Sale Heads in his garage

If that does not work out....I am going with this 405 hp

Im paying down the Bottom half was home to get the set back together

GOLDCYLON · 12-21-2010

Quote:

Originally Posted by carter200

You got that right

Well im confused I though this was machinst porn

Locobob · 12-27-2010

Got a little more time in on the heads. Currently I am still working on enlarging the primary intake ports and also matching them to the injector housings.

Here we have the bottom of the injector housing with the balsa wood template in place. I like to use this small dremel sander to trace around the ports - it is easy to control and allows me to precisely control any angle so as to get a proper representation of the top of the port.

Same template only now applied to the head. I use this fine marker to trace the pattern onto the mating surface of the head.

Same head now with the balsa template removed, you can see the red marker designating the area to be worked in order to match up the head ports with the injector housing ports.

Generally I repeat this process 3 or 4 times until I am at the size I want and have a good match. A bit overkill... yeah probably but it helps to keep and eye on your work as you go - otherwise you can end up with mistakes that are hard to correct. Primary ports in these photos are 35mm at the mating surface and will end up being about 36mm when I am finished.

LGAFF · 12-27-2010

Thing of beauty! Thanks for sharing, once I get the motor out of the 90, going to port the heads....first venture with head porting.

Locobob · 12-28-2010

Quote:

Originally Posted by LGAFF

Thing of beauty! Thanks for sharing, once I get the motor out of the 90, going to port the heads....first venture with head porting.

This is my first start to finish head porting venture also Lee. It is nice having the set I reworked handy for reference.

12-21-2010	#11
Locobob Join Date: Jan 2004 Location: Portland, OR Posts: 1,057	Re: Some "Dynomite" Heads! Some "boring" video footage.... get it.. boring haha... okay sorry I'm not that funny. __________________ Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 Last edited by Locobob; 12-21-2010 at 03:15 PM.

12-21-2010	#15
RICKYRJ1 Join Date: Dec 2005 Location: Tinton Falls, NJ Posts: 1,177	Re: Some "Dynomite" Heads! Thanks for the starting info! Dynomite is getting good head . Locobob gave me a great education in porting & cleared up a lot of misinformation that I had., Dyno will be more than happy with the work. Keep this thread updated with you progress.

12-27-2010	#18
Locobob Join Date: Jan 2004 Location: Portland, OR Posts: 1,057	Re: Some "Dynomite" Heads! Got a little more time in on the heads. Currently I am still working on enlarging the primary intake ports and also matching them to the injector housings. Here we have the bottom of the injector housing with the balsa wood template in place. I like to use this small dremel sander to trace around the ports - it is easy to control and allows me to precisely control any angle so as to get a proper representation of the top of the port. Same template only now applied to the head. I use this fine marker to trace the pattern onto the mating surface of the head. Same head now with the balsa template removed, you can see the red marker designating the area to be worked in order to match up the head ports with the injector housing ports. Generally I repeat this process 3 or 4 times until I am at the size I want and have a good match. A bit overkill... yeah probably but it helps to keep and eye on your work as you go - otherwise you can end up with mistakes that are hard to correct. Primary ports in these photos are 35mm at the mating surface and will end up being about 36mm when I am finished. __________________ Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368

12-27-2010	#19
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Some "Dynomite" Heads! Thing of beauty! Thanks for sharing, once I get the motor out of the 90, going to port the heads....first venture with head porting. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359