it's only 35, won't have been COVID-19
-
The Z Club relies on the support of it's paid members - join the club or renew your membership here.
LD32 Engine build
- Thread starter jonbills
- Start date
It's been a long time since I updated this.
the crank came back from having the rod journals offset ground and checked.
It now has 84.27 stroke, so I'll have 3180cc. Still not quite 3.2
I've also just ordered a lightweight RB flywheel and clutch for it.
https://www.ebay.com/itm/202762417167
According to Hybridz.org it'll fit with a little massaging of the bell housing.
the crank came back from having the rod journals offset ground and checked.
It now has 84.27 stroke, so I'll have 3180cc. Still not quite 3.2
I've also just ordered a lightweight RB flywheel and clutch for it.
https://www.ebay.com/itm/202762417167
According to Hybridz.org it'll fit with a little massaging of the bell housing.
Last edited:
still not quite 3.2
That’s close enough, surely, you utter tart
[emoji106]Don’t call me Shirley I hear you say.
Last edited by a moderator:
Albrecht
Well-Known Forum User
I have a figure of 10 degrees for the cutouts on a Nissan Works L24R piston.
thanks Alan, I'll go with that.
Albrecht
Well-Known Forum User
I can check it with some kind of rigged-up practical experiment later.
please don't go to any trouble Alan, I do have a built up head in the loft I could get down and measure. I was just looking for a short cut.
if you have the parts easily accessible though, I'd be grateful!
10 degrees it is then! is that an L24R piston?
thinking about it now, one would need more than just the angle of the valves to locate the cuts in the piston. I'll see what questions they come back with.
Turn & Burn
Club Member
I’m pretty sure it’s 12deg, I struggled to get enough data for this and the correct location for the cut out when I did mine so went to Rebello who generally use JE. I’ve attached a data sheet here...
Last edited:
Alphabettispaghetti
Club Member
Have you looked at Kameari data? The catalogue has some great drawings for their pistons
I did, but I didn't find any drawings. I'll probably end up with Kameari pistons, but they dont do 90mm ones and there's an outside chance I can get 90mm bores.
That would worry me - why go to the extreme?
liners were always on the cards with the diesel block.
But how thick are the cylinder walls of the other 4 cylinders?
Is it really worth that extra few ccs?
Is it really worth that extra few ccs?
Mark N
Club Member
I was originally thinking that too, I have always kept my engines as close to OEM bore as possible to give the option of future rebuilds on the event of bore damage.
Both my RBs have been rebuilt and are 86.5mm (0.5mm overbore), I didn't chase the extra cc's as I didn't feel the extra response was worth losing rebuild potential.
After thinking more about, once you commit to liners, any bore damage just requires the replacement of a liner (or liners as the case may be) instead of over-boring all of the cylinders.