Quote:
Originally Posted by HarryM1BYT
Flow of a fluid (air) is a function of the pressure / the size of the pipe /its length and the smoothness of the pipes bore bends etc..
How you work it out, I don't have a clue  |
Fascinating thread this.
I do have a clue about the above. In a previous life I spent 7 years in Saudi Arabia teaching it! Air Conditioning trunking that is.
You need to keep the pipes as straight as possible with bends 45 degrees max.
To go round a 90 degree bend its better to have 2 X 45 degrees if you follow me.
The trunking hose in the photos (a neat job and very impressive) will create turbulence. It would be better to have hose which is smooth on the inside rather than the corrugated effect.
The M47R engine air filter and then the subsequent turbo pipe-work takes air on a round tour of the engine so we need to not add to the bends there already.
I agree totally with RoverRon who is warning of low down spray intake.
Beware the winter and salty motorway spray when overtaking big trucks!
Better to have a bit shorter pipe terminating higher up with a trumpet / funnel type intake. Check the silicone hose suppliers on eBay.
http://www.ebay.co.uk/itm/3304280256...#ht_1935wt_876
My TD4 has the same air filter box as you guys and I have a 70mm hose with an alloy ram pipe inlet instead of the thing resembling a toilet cistern that LandRover fitted.