25-10-2016, 06:37 PM
(25-10-2016, 05:01 PM)toseland Wrote:(25-10-2016, 05:23 AM)Poodle Wrote: I can't see any problem with that, it would probably cool the fuel better thanks to the higher airflow, as you say. It would need fairly good protection mind, you wouldn't want a stone going through it on the motorway. :/
It should be fine as poodle says but care should be taken specifically regarding crash safe zones
This leaves basically in front of and behind the engine block as your options. Possibly if you relocate the battery or put it behind the headlight on one side (drivers maybe?)
As a rule of thumb 45degC is about where you want the fuel temp. Lower will increase performance marginally and but importantly above this the performance losses will be swift and generous.
It absolutely needs to be away from the radiator as the ambient radiated temperature, as well as heated airflow past the rad will be higher than 45degrees. Also you need to consider it cooling the fuel too much.
Depending on how you go about doing it you need to consider the ambient temperature and the affect the fuel system components have on the fuel. In the UK it will tend to have a cooling affect, whereas in warmer temps it will tend to be a heater by comparison.
I think maybe your best bet would be to mount to the bulkhead or in front do the pedal box if you can glean enough room, be sure to ensure adequate airflow and if you notice a drop in performance then you might need to rethink the design and location
Thank you both for your replies when you say it absolutely needs to be away from the radiator do you mean just not behind it? In front of it would be fine apart from the crash safety issue? Despite the crash zones I think I'm going to front mount it if it will give me the most cooling. Also are you saying I can't loose any performance from over cooling diesel? Just power will be lost from not cooling it. I live in N.Ireland so our climate is cold nearly all year around so I doubt it will act as a heat soak but will it suffer from heat soak from being in front of the radiator. I was even considering using two fuel coolers as I have a spare so thought I may as well as long as I won't loose any power by over cooling diesel?
Thanks again both of use