10 replies to this topic

[Elwyn]

Instead of the 4 hard standard “plastic” vacuum hoses with the hard 90 degree shoulders, has anyone used any alternative hoses?
Eg:

Samco Silicone Vacuum Tubing
SKU: SAMVT3B2WBRG
Bore Size 3mm

If so, with success?

Do the alternative hoses need to be cut to the same length as the standard ones?

[Elwyn]

In case anyone’s interested
I had fitted the Samco vac hoses
I swapped back to the hard standard / elbow hoses today
To see if the Samco hose vacuum had been sending incorrect messages to the ECU
No change
No better
No worse

[MatthewsDad]

I use silicone hose to the fuel trap and then to the ecu. Works fine and easier to install than the hard plastic oem kit.

[Elwyn]

It is much easier. Agreed. Doesn’t seem to make any difference to the running.

[brivinci]

I have used those silicone lines for years now. Good to know that once installed, you really don't have to worry about them cracking, melting or aging like the originals. Oddly, I did just have a fuel trap fail on me. It started to leak from the top "seam" and leave a fuel residue on the throttle body near by. 

[Pee]

I have used those silicone lines for years now. Good to know that once installed, you really don't have to worry about them cracking, melting or aging like the originals. Oddly, I did just have a fuel trap fail on me. It started to leak from the top "seam" and leave a fuel residue on the throttle body near by. 

 

Eek! - Mines still on the original fuel trap, feel like I should start replacing things like this due to age but it appears to be fine and every new part I buy is rubbish! 

 

I've ran silicone vac pipes for 4 years after many a cracked elbow causing all the usual odd issues they do.

[MatthewsDad]

Many of these items (fuel traps, vacuum hoses, sensors, injector gaskets) that are unique to the spi are effectively service items rather than fit and forget. If its still on the original fuel trap that's pretty good going 🙂

Edited by MatthewsDad, 10 August 2024 - 12:55 PM.

[cooperd70]

Would be pricey but https://classicminis...d-transmission/ do a custom set...I'm sure the quality would be faultless at the price.

Edited by cooperd70, 10 August 2024 - 03:00 PM.

[brivinci]

I have not ordered from the above...but soooo want to. The rubber used these days are absolutely terrible! Everything they produce sound like super top notch. 

[VinnyS]

I replaced all the vacuum hoses on my Spi with silicone ones and have had no issues since. Bought from eBay, just made sure I had the right internal diameter. I'm currently restoring my car back to original spec as close as I can and when I source an airbox (If anyone has one going please PM me!!) I/m going to replace the vacuum hoses with the coloured ones to get as close a match as possible. 

[Xsangelo]

I'll never go back to plastic again, MerlinMotorSport supply everything Samco. I just cut the roll to the best line possible away from any heat areas which typically burn through the plastic pipes.