19 replies to this topic

[Carlos W]

 

 

most of us could make more difference by eating a few less pies.

 
I reckon I'm 3.5 stone overweight, that's over 20kg.
 
If I was looking at losing that kind of weight from the car there would be nothing left of it.

I heard somewhere someone bagged up and weighed the factory bitumen soundproofing and saved about 15kg so that's pretty good

 

I had all the bitumen from my 83 mayfair in a bucket, and although I didn't weigh it, I'm fairly sure it didn't weigh 15kg

[mini-geek]

More like 1.5 kg

Don't remove the heater.. I did and soon refitted it..

[Earwax]

As said by others above, i wouldn't remove the heater.... this is of course presuming that it actually does demist the windscreen as intended... it could be you keep the heater and add a computer fan to underdash to blast air over windscreen. ) this adds very little weight. The heat given off by the matrix is taken from the head/block, the extra volume of the matrix and the heater hose increases the latent mass of the water/coolant, and therefore acts as a heatsink by being able to draw ( hold) more heat before the block heats too quickly. ( so radiant heat loss plus bigger heat sink = cooler engine)

 

As you are in the ground up phase, it is well worth checking the condition of your radiator core... as if it is filled with accumulated gunk or has many fins damaged then problems arise. A number of Historic racers, actually disconnect or tape up the heater matrix/auxilliary radiator ( albeit plumbed in the front of the engine bay to get the wind) on cold days as there engine struggles to get up to temp.

[JDImini]

Thank you for all the advise!

[tiger99]

If you really want to proceed, try some of the kit car suppliers, who have small, modern heaters available. Demisting is a legal requirement on the road.