Riceburner

What performance upgrades can be done to the rear drum brakes on a 240Z and can these be improved to match or exceed the common R31 rear brake 'upgrade'? The obvious things like braided lines, good quality fluid, shoe compound should be done. I was thinking venting the backing plate or ducting would help and is it possible to 'slot' the inside of the drums?

Glad I'm not the only one who loves it. I'm not sure on the time but from looking at the previous vids it looks a little less twitchy, also maybe a diff ratio change as it's not on the limiter as much? I like the sequential shifter being rolled over so he's only moving his hand 50mm to grab gears.

Great Job, Show car finish and plenty of grunt too

Bolt on some hilux 12+8's front calipers and get pads from GSl rallysport in QLD. They'll rebond any pad/shoe you can give them. Their A1RM compound will be fine for road and handle moderate track abuse. Spend the cash saved on the MK63's on braided lines, good quality pads and fluid. A Madza RX7 E-FD3S front pad will fit the 12+8's with a little mod, heaps of compounds available in those (project mu). I've seen project mu rear brake drum shoes on yahoo japan for fairly cheap (my project mu front pads in 12+8 calipers are epic!), I'd go with these if I knew they'd be as good as the R31 rears braking wise. If anyone runs these rear project mu shoes let me know how they perform! My personal preference would be to stay as close to the factory setup as possible, I like that OEM look but it can need added performance. If you start doing quick track days or racing then look to upgrade them, the stock setup can have huge brake fade when pushed even with cooling ducts. I find R31 rear calipers to be horrible, I run them and they are hideous in every respect. Bleeding, fitting new pads is terrible and the screw pistons are just crap. IMHO the stock drums are much easier.

Wow

It for my brothers Datsun 1600/510 road car, I'm not exactly certain on the setup of the fuel system on the car but I know he's got Mikunis to run on an L20. I don't think he has a reg at the moment.

Thanks John, I'll take it. PM you shortly Cheers, Gareth.

Hi John, can you tell me the pressure rating on this? If it is suitable for twin mikuni PHH40's without a pressure regulator I'll take it. Thanks, Gareth.

Nice write up in the magazine mate, pics looked awesome!

Sold

PM's sent

Sweet ride Curtis I love the chrome door strips, gives a genuine old school look.

That sounds pretty reasonable.

No not yet. I was starting to think I'll keep it as a spare, or at least until the other crank is finished in case anything goes wrong with it. PM if your interested, I can get a price to post it.

There'll probably be a little groove worn in the crank from having a seal rubbing on it for 40yrs. Trim some gasket paper to the same shape as the seal, push it in first then fit the seal. It'll now seat a little further out on an unworn part of the crank and should seal up much better.

How expensive is it to sleeve a block in this way?

Sorry, I should have written it a little better and typed Aternator and not just alt. No way would I use an original bonded pulley/balancer that would make for a big bang. I've got a BMW 8" type, it's ok for now maybe a Kameari or ATI when the new motor gets done.

Checked the alt pulley on my spare LD28 motor. Looks like this could be a winner, measures about 74mm.

That's going to be very funny Does this mean we will get a police escort to all future events and car shows? Haha.

The bumpers look similar to the ones on your green 260, It's awesome!

What's the % the ATI balacer under driven by Jake? I have an LD water pump, also a water restrictor after the thermostat to stop high rpm cavitation and limit max flow. It's been bullet proof so far, so I only want to fiddle with the alt pulley. With the 4.37 I'll be using a few more revs.

Thanks Jake, they look like a nice piece but I only want the alternator under driven. Found these on Yahoo Japan but have no Idea if they are stock, over size or under size? http://page12.auctions.yahoo.co.jp/jp/auction/p433953284 ◆ Hakosuka / Kenmeri / S30Z such as L- Horta aluminum pulley unused goods ! ◆ L-type alternator for aluminum pulley ( anodized) unused goods . Size part of part 17㎜ belt wearing the diameter 68㎜ shaft enter is 15 mm at the widest place . Such a thing , but please those who need !! #EDIT: The pulley above is the same size as my current OEM type.

Is there any source for something like this, either new or from a different vehicle?

Good turn out considering the weather. Some nice Zeds there, who's is the JDM police car? Looks great!

I have a spare set of late 260z stubs with spacers that I could check if that's any help.