I guess that I don't know how to make the photos show up here but these are the pics of my lightened 1200 flywheel. Used it in my SCCA car for 6 or 7 seasons. Turned 8500 RPM pretty regularly so it seemed pretty reliable. Weighs 10.8 lbs. (Thanks Dodgeman)

http://datsun1200.com/modules/myalbum/photo.php?lid=11151, http://datsun1200.com/modules/myalbum/photo.php?lid=11152

What was the donor for your flywheel. A14? These, & A15 flywheels are quite heavy to begin with, so puting one on a diet is a really good idea.

I just recovered my own cut down flywheel from the back of my 1200GX engine before I traded it away, & I used an A10 donor flywheel to start with. We just trimmed a little off it, as they are the lightest of the A series flywheels to begin with.
What's it weigh? It's been well over 20 years & I forget, but will try to find out soon. [EDIT] It's 6 Kg


You can see the extra half dozen M6 holes that held the original little pressure plate on.
We machined the front face down to the bottom of the groove that defined the diameter of the A10's smaller clutch plate.
















Then we machined the back just to make it nice & smooth. The A10 flywheel is not hollow in the back like the others, so it's probably not as light as one might at first think.





















I don't know if this is what you would call 'street weight' but it served me well for many years & as long as it is still serviceable, I will probably use it behind my A13, right after I replace the worn ring gear.

Re: U SHOULD ALL VIEW B4 X MASS
PEPPER wrote this,nice kind of person he is
I finly rest my case,
1 i never said id shoot any1
2 i never poasted a photo 2 start this row
3it started from me comenting on a ford car poasted on a datsun site
4 if carefull noating to all my poast at point of first poasting,was never rude, it may b noted the poasters started with smart ass rud degrading poast at me
5 i belive the web marstar should cancle there member ships ?? Ree PEPERS QUOAT

Sent: 2006/12/9 16:05:44
--------------------------------------------------------------------------------
Re: Fate

mate,
i dont give a toss if you have friends in high places, im very surprised you have any friends at all.
your such a big tough kunt with your threats, i bet you wouldnt have the nuts to go through with any of them.
no one takes your lame ass threats seriously, your so full of bullsh1t you stupid old kunt. you think your the only one with ; life skills', mate, we have all been there , done that, your nothin special.
so yeah dumb fuk, ill push it some more and we'll see if i end up with a bullet in my head. id be very surprised if that retard kunt in that pic actually new how to use a gun.
its time you fuked off you annoying,illiterate dumb old kunt with too much time on your hands.
you

Hey there shaun, what does your flywheel weigh now?
I just lightened mine to 8kg from 9.7