Build Pictures 5-1-10

[Ryan]

Looks brill Tilly. I Love what you have done with the dash!

[Tilly819]

hi all,

powler: seats came from great british sports cars aka robbin hood

hoybi: i was considering that last night i may well put the oil cooler behind the rad will have to wait and see it would not be too much effort to change.

bring on summer

tilly

[happyjo]

Tilly, the Oil cooler should be behind the rad.
The Coolant water needs cooling and the oil needs warming.
Airplane engines have to have that configuration because of the high speed, but then again it is a roadster!

[Tilly819]

Originally Posted by happyjo

Tilly, the Oil cooler should be behind the rad.
The Coolant water needs cooling and the oil needs warming.
Airplane engines have to have that configuration because of the high speed, but then again it is a roadster!

Not quite understanding what you are saying, the camparrison to an aircraft is not a great one if you dont mind my saying.... they infatct in aerospace terms are known as heat exchangers and they tend to be mounted in direct air flow thow it vaires from engine to engine piston, turbine etc etc

the purpose of an aero heat exchanger is still to cool the oil, the engine does the warming same as in a car or any other trye of engine the main differeance is that they can control the amount of cooling by having valving in the oil lines. it is only when opperating in very cold tempretures they the oil becomes too thick due to the cold and this tends to be rectified by line heaters and oil thinners in older engines.

I am considering putting the oil cooler behind the rad NOT to warm the oil but to allow more airflow thew the rad since it is a little on the small side as it is i do not want to be pulling the heat lost from the hot engine oil threw the rad and loose effenciy of the rad I may well fit a small under car scoop to derect flow into the oil cooler as well

Chears Tilly

[AshG]

nope oil coolers should be in front of water rads as should intercoolers and ac rads.

its much more important to keep oil cool. when oil gets too hot it stops working!! water just expands and overflows then you see steam and stop. you dont see when oil is too hot without a gauge which normally means the oil gets too hot stops working and the shells friction weld themselves to the crank.

trust me been there done it got the t-shirt.

[flyerncle]

You may find that the oil does not get hot enough unless you are travelling at a rate of knots and a thermostat may save you lots of grief.
Interesting to note that a high percentage of modern vehicles are fitted with a water to oil heat exchanger therefore one heating and cooling the other at the same time and vice versa.

And all the coolers I have seen including PAS coolers/pipes are in front of the rad.

Nice car Tilly,that gear lever looks dangerous .!

[thwang]

my mexico,s starion and rs turbine all had the oil cooler in front of the rad

[AshG]

oil doesnt need to be hot hot to work. most car engine oil is designed to be ideally between 60-100degC . thats why they rate them e.g 10/40 5/30

as long as it reaches a temperature within its operating range then it will be fine. its the viscosity that is important not the temp. you need to make sure that the viscosity is correct for the temp range you intend it to run at, thats the key.

have a look on here if you want to know more.

http://www.upmpg.com/tech_articles/m...ity/index.html

i did quite a bit of reading up when i was runing cars with very high boost turbo engines. i had one engine eat big ends on me twice. once i worked out that the car manufacture spec oil was no longer suitable after eaking all the extra power out of it i no longer suffered any big end failures.


anyway this is a build pictures thread and on that point everything is fine and dandy. its good to see that the pictures have provoked a nice debate its amazing that on many forums this would have ended up as a flame war, where as on here its a nice discussion with every one chucking their thoughts onto the table.

[alga]

Yep, excellent friendly forum this, and great pics Tilly!

[dogwood]

Originally Posted by AshG

its amazing that on many forums this would have ended up as a flame war,

What do you mean by that !!!!!
Do you want a fight ??????

Nice build BTW Tilly
David