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Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt


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Anyone have any idea what it would cost to get one/3/5 of these whittled up out of steel? Needs to be a good grade material , it's a band apply lever in a transmission

I have a broken one as a pattern

They are not that expensive but are hard to get in NZ

It's probably 70mm long 

 

It's the bottom bit

 

@ajg193  ?

 

 

20240804_175930.jpg

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no, id ordered one from WAER and they sent it out, but the courier delivered it to the wrong adress, and they cant tell me where it ended up. they sent a pic of where they left it but it wasnt my house...

got an email today and its going through the couriers insurance apparently

 

Both me and Eric have been onto them, but no luck, and that was the last one he had in stock, it was delivered last tuesday to who knows where

 

im not in a big rush, it was more just out of interest, if it wasnt super expensive i could get a spare or 2 made but i realise im probably being unrealistic

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5 hours ago, cletus said:

Anyone have any idea what it would cost to get one/3/5 of these whittled up out of steel? Needs to be a good grade material , it's a band apply lever in a transmission

I have a broken one as a pattern

They are not that expensive but are hard to get in NZ

It's probably 70mm long 

 

It's the bottom bit

 

@ajg193  ?

 

 

20240804_175930.jpg

I've got a guy down south if you're desperate.

Comes down to knowing a bit more about how it functions and figuring out correct tolerances for whatever features but it looks simple enough

Plenty of materials to chose from, even real fancy stuff can be cheap for stuff that size

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dumb question, but I just realised that my starion has no flyweight or vacuum advance on the distributor. i cant think of another way it might change ignition timing... am I missing something? are there other factory cars that just have locked ignition as standard?

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1 hour ago, gibbon said:

dumb question, but I just realised that my starion has no flyweight or vacuum advance on the distributor. i cant think of another way it might change ignition timing... am I missing something? are there other factory cars that just have locked ignition as standard?

Advance is controlled by computer

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I figured that might be the case, but the rotor is still only where it is, right? If the computer tells the coil to fire twenty degrees earlier, the rotor won't be lined up with the distributor cap pole? 

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Dumb question for the day. 

I have one of these coming https://tiltonracing.com/product/76-series-master-cylinders/

It's made of alloy, the holes for the flange are 8.6mm and because of the proximity of the flange to the rear port, I want to put a stud in the top flange hole. Ideally it's gonna be an 8mm stud, so I was thinking of tapping the hole to m10, and putting one of these in there. My problem being, part of my brain remembers that there is some sort of reaction between alloy and stainless and the stainless will fuck the alloy up, and I only seem to be able to find these in stainless. Am I correct? Is the stainless adapter going to cause me to have a bad day?

image.png.602e9f0cea772036031860a60d4e21a6.png

 

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12 minutes ago, mjrstar said:

Could you tap it for 10mm and run a stepped stud.

Such as something a little like this.

https://dubbed.co.nz/products/stud-stepped-stud-8mm-10mm-x-38mm

The aluminum and stainless will kick off some galvanic corrosion. 

That's the other idea I've been looking at, those studs wouldn't be long enough to pass through the firewall and the pedal box I don't think. The factory one sticks out 38mm from the flange. It may work and I'll measure tomorrow to see if it will. I couldn't find many other options of them that weren't stainless or in the UK though

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22 minutes ago, GARDRB said:

 My problem being, part of my brain remembers that there is some sort of reaction between alloy and stainless and the stainless will fuck the alloy up,

image.png.602e9f0cea772036031860a60d4e21a6.png

 

Yeah the Ali starts to froth white stuff out of it then fall apart. Anzor  has a sealer that’s slows down the reaction but won’t stop it. 

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1 hour ago, gibbon said:

I figured that might be the case, but the rotor is still only where it is, right? If the computer tells the coil to fire twenty degrees earlier, the rotor won't be lined up with the distributor cap pole? 

remember the dizzy will be spinning at half speed of crank.  so   20degrees  advance  is only  10 degrees at the rotor

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4 hours ago, GARDRB said:

Dumb question for the day. 

I have one of these coming https://tiltonracing.com/product/76-series-master-cylinders/

It's made of alloy, the holes for the flange are 8.6mm and because of the proximity of the flange to the rear port, I want to put a stud in the top flange hole. Ideally it's gonna be an 8mm stud, so I was thinking of tapping the hole to m10, and putting one of these in there. My problem being, part of my brain remembers that there is some sort of reaction between alloy and stainless and the stainless will fuck the alloy up, and I only seem to be able to find these in stainless. Am I correct? Is the stainless adapter going to cause me to have a bad day?

image.png.602e9f0cea772036031860a60d4e21a6.png

 

I cant see how these are different to a heli coil? As long as it's not in salt water or under water the corrosion issue will be fark all.

Some alloy castings are helicoiled from day one.

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