Lotus Elan

air intake ducting source

PostPost by: alanr » Sat Oct 17, 2020 2:09 pm

richardcox_lotus wrote:Discussed just recently:

https://lotuselan.net/forums/viewtopic.php?f=40&t=47745

I needed about .6 to .7 metres on my sprint

Regards
Richard


Yes I have seen that but I believe the +2 needs quite a bit longer ducting than a Sprint.

Alan.
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PostPost by: richardcox_lotus » Sat Oct 17, 2020 3:35 pm

Probably true, I can’t say. What I can say is though that 90mm as opposed to 3.5inches worked well for me - made it easier to attach to air filter box and air box.
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PostPost by: mbell » Sat Oct 17, 2020 4:11 pm

I measure mine at ~60cm and a cut off of 40cm. I am not using the standard filter housing in the nose but a cone that is mounted closer.

I think 1m will be long enough.
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PostPost by: alanr » Sat Oct 17, 2020 6:09 pm

mbell wrote:I measure mine at ~60cm and a cut off of 40cm. I am not using the standard filter housing in the nose but a cone that is mounted closer.

I think 1m will be long enough.


Thanks for that.
That helps a lot and just what I needed to know.

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PostPost by: MarkDa » Sat Oct 17, 2020 11:32 pm

If you want more the ask the usual suspects for a longer length.
I'm pretty sure they buy rolls and cut to suit.
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PostPost by: alanr » Sun Oct 18, 2020 1:55 am

MarkDa wrote:If you want more the ask the usual suspects for a longer length.
I'm pretty sure they buy rolls and cut to suit.


Well having my cheapskate hat on I was hoping to get some from ebay where it is much cheaper (usually China) they only sell pre-cut 1 metre lengths which I have not been convinced will be long enough for a +2. Hence my question.

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PostPost by: mbell » Sun Oct 18, 2020 2:05 am

I'll try remember to dig out the hose that came with my car and measure it tomorrow. Can't be 100% it's original and correct but another data point.
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PostPost by: The Veg » Sun Oct 18, 2020 6:07 am

I used silicone 'brake duct' type tubing, which seems great stuff. Fits well, is durable, and even where it gets bendy the inside remains relatively smooth compared to corrugated-type duct, which might be good for free-er airflow. I got a 6' length from Pegasus Racing. They have many diameters and I used a smaller size for the ducts to the dashboard vents.
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PostPost by: MarkDa » Sun Oct 18, 2020 6:10 am

If you can live with self colour you can buy 1m length that extends to 3m if required.
Or I did see 2m length for £6.99.
Or is that too 'cheapskate'?
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PostPost by: mbell » Sun Oct 18, 2020 2:43 pm

mbell wrote:I'll try remember to dig out the hose that came with my car and measure it tomorrow. Can't be 100% it's original and correct but another data point.


I had a look in my attic/garage for it but can't find it. Wondering if I got rid of it as way to dirty to use again.
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PostPost by: alanr » Thu Oct 22, 2020 2:35 pm

mbell wrote:
mbell wrote:I'll try remember to dig out the hose that came with my car and measure it tomorrow. Can't be 100% it's original and correct but another data point.


I had a look in my attic/garage for it but can't find it. Wondering if I got rid of it as way to dirty to use again.


Ok, Thanks for looking anyway.
I have now been told elsewhere that for a +2 with standard airbox I need 44inches of trucking. So a metre length from ebay is not going to be long enough.

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