[Looking for bore size of L28ET oil jets]

Can't the machine shop measure what they've got?

[Looking for bore size of L28ET oil jets]

Why not order some and measure them? They look cheap enough.

[LD28 3.1 engine build]

I  bought some 12.7 m12x1.75 bolts - my notes say 12@145mm  and 5@172mm. I think I also bought some 150mm ones, so I'm not 100% sure which are on it. 

They weren't sold as head bolts, just high tensile.  I've had no problem with them. 

 

As an update, it's still going well. It's developed a bit of an oil leak from the sump gasket, I think its because the sump is just touching the steering rack and the vibration may have worn through the gasket. I need to take the engine out in the next couple of months to confirm. 

 

[Am I missing something?]

use a 36-1 crank trigger wheel. (rather than small and sloppy distributor wheel) 

[High pressure fuel feed]

have a look at this thread. 

 

[280z FP Build]

58 minutes ago, calZ said:

So what I'm getting out of this is that I should run a bronze drive gear. 

I'd say so. 

[280z FP Build]

2 hours ago, JMortensen said:

Mark sent a picture. Looks like they were using a borescope.

Said it happened a different time and sheared all of the teeth off, sounds more like Ben's failure.

that does look like mine - fractured at the key slot

[280z FP Build]

This is my oil pump gear and spindle from 2017. I put it down to the load from the turbo oil pump and lots of revs. 

I replaced with a bronze drive gear and its been fine since. 

[1971 240z ITB install]

I just use ignition advance to control idle speed. 28° when cold going down to 6-8° when warm. Idles at ~1000 rpm from startup. 

[Kameari - anyone using their pistons and rods?]

Forged street pistons,  88.5 & 38.1 PH and 89.5 & 35.5 PH. 

[Kameari - anyone using their pistons and rods?]

I just emailed Mr Mori. or is it Mr Kame? I'm not sure, but he's very helpful. 

kame.mori@nifty.com

[Kameari - anyone using their pistons and rods?]

I have Kameari pistons in two engines. (w/ maxpeedingrods rods). 

Never had any problems and Kameari are really good to deal with direct. 

[HybridZ is Skillard now?]

seems to be a fairly common problem with Safari on ios. Is that what you're using @calZ? 

[Is it possible to bore a l24 to fit 89mm pistons]

I think accepted wisdom is that p30 block can be safely taken to 86.

n42/f54 blocks preferred for bigger bores. 

unless you're prepared to fit liners of course. 

[Subaru Diff Clarification]

It doesn't matter I know, but I'm compelled to point out it is torsen (torque-sensing), not torsion or torsten. Sorry. 

[L28 MS3X Initial Start Troubleshooting]

are there sparks and do the plugs get wet with fuel? 

[2021 l28et connecting rod questions, OEM limits, Forged options, etc]

I have rods from Maxspeeding rods in my current and previous engine. I have very close tolerances between piston and head and no contact and no problems at all. I'd recommend them. 

[short stroke l28]

I think a short stroke engine is cool, but even the LD crankshaft isn't super long stroke and will rev. 

I'm revving mine to 7700, and my previous engine with l28 crank went well past 8. (in the end it was valve train that limited the rpm) 

[Turbocharge or stroker: which to build]

3 hours ago, AydinZ71 said:

@jonbill
 

Looks gorgeous. Good old peanut head.

looks like your octane rating in the UK is a combo of higher labeling and truly higher octane.
 

https://aircooledbug.co.uk/usa-versus-uk-fuel-octane/

 

Most we have here at the pump is 91. Everything over that is non-standard at the pump, is harder to find, and significantly more expensive (mostly due to the low volume of sales). In Southern California, a gal of 91 is close to $5 a gallon (~4L), while 100 octane race fuel is $10 a gallon. 

So you still have the weather and Brexit to contend with, but you do enjoy the superior fuel! 

 

Thanks.  I like the weather TBH. Brexit is... hard to explain

This pic is of the piston in situ - you can see where the proximity of the head squish area has kept the piston clean. This is my previous engine with 0.6mm head to piston clearance. 

[Noisy R-200 Woes]

my gearbox makes noises like that. 

[Turbocharge or stroker: which to build]

I've got 11.8:1 on  normal fuel, but I believe our fuel is better in UK than yours. I run it on 99 ron, although I didn't hear any pinging on 95 either.

0.8mm clearance and lots of squish. 

 

[Noisy R-200 Woes]

you've either been incredibly unlucky or its not the diff. 

anything unusual about the suspension or gearbox setup? 

whats the noise like coasting out of gear? in gear with the clutch in? 

[Hood won't fit 240Z fresh paint.]

This thing. It can  be screwed in and out a bit to adjust height. 

(photo borrowed from jdmcarparts.com)

[Hood won't fit 240Z fresh paint.]

if you can get it low enough at the front but its too high at the bulkhead, the height can be adjusted by screwing in the catch bolt in the bonnet. 

if that doesnt make any difference, check if the bonnet is resting on the rad core support at the front. if it is, you'll have to take the bumper off z loosen all the wing bolts and raise it a bit and start again. 

 

[Trouble on initial starting..please help]

cold start isn't what happens when its cold outside and you start your car. 

ANY outside temperature is a lot colder than the running temperature of the engine, and it needs fuel and timing adjustments while it warms up.

so suspect a temp sensor somewhere.