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Re: I think my radiator is too big.....?
Posted: Wed May 04, 2016 10:23 am
by soe8m
I did suggest to use an universal or like zombeh calls an in line thermostat. It is a bit more hoses but has as an advantage that you can create a free flow engine so if the universal thermostat is closed the pump can pump free through the engine without restriction what does increase the life of the pump. When hot this recirculation closes an all flows through the rad. Same as the original setup but not the recirculation through the little bypass tube but recirculation through the main system so no restriction.
Jeroen
Aye,.....
Posted: Wed May 04, 2016 2:45 pm
by sprint95m
Thanks Jeroen.
I think that one of
THESE should do?
It is rated at 88 degrees.
Ian.
Re: I think my radiator is too big.....?
Posted: Wed May 04, 2016 3:27 pm
by tony g
Whats the difference with the stat being in the top hose and right next to it in the stat housing?
Cheers
Tony
Re: I think my radiator is too big.....?
Posted: Wed May 04, 2016 3:39 pm
by soe8m
sprint95m wrote:Thanks Jeroen.
I think that one of
THESE should do?
It is rated at 88 degrees.
Ian.
Yes it looks like one.
tony g wrote:Whats the difference with the stat being in the top hose and right next to it in the stat housing?
Cheers
Tony
The main difference will be when the thermostat is closed the recirculation with a remote thermostat will be a free flow through the engine only so it warms up nice and you have a heater. Using the std thermostat you have your recirculation through 2x 5mm holes and a bypasstube and it's not fully closed because you still do pump through the rad. Not so good warm up and heater.
And with free flow recirculation your pump life wil increase according the manufacturer.
Jeroen
Re: I think my radiator is too big.....?
Posted: Wed May 04, 2016 4:25 pm
by tony g
Re: I think my radiator is too big.....?
Posted: Wed May 04, 2016 5:22 pm
by soe8m
No.
Re: Aye,.....
Posted: Wed May 04, 2016 6:50 pm
by zombeh
sprint95m wrote:Thanks Jeroen.
I think that one of
THESE should do?
It is rated at 88 degrees.
That one or PEM101020 if you want 82 degrees. They're both V8 parts and have a stiff spring in them which I think is what you want for an electric pump.
Yes.....
Posted: Fri May 06, 2016 9:58 am
by sprint95m
Thanks Jeroen and Zombeh.
An update:
Davies, Craig in Australia are offering to send me a new controller, that is the new 8000 LCD version
which was introduced last year (I have the older 8020).
So what I can do is go back to running without a thermostat until the new controller arrives and then fit it
(said controller plugs into the existing socket).

When you consider how much of the world shares our temperate climate, it does seem bizarre to me that I am being asked
to do their product testing?
Ian.
Re: I think my radiator is too big.....?
Posted: Fri May 06, 2016 11:27 am
by tony g
If it works i wonder if theyll send me one? I wont be buying any more from them.
Cheers
Tony
Okay.......
Posted: Tue May 10, 2016 2:52 pm
by sprint95m
The saga continues....
The latest is this, instead of sending one direct,
Davies, Craig are trying to get a UK distributor to send me a controller.
I did wonder, as surface post to Australia is about 6 weeks so presumably its the same going the opposite way?
Ian.
Okay.......
Posted: Wed May 11, 2016 11:18 am
by sprint95m
And still the saga continues Tony....
DC have changed their minds on getting their UK distributor to send me a new controller.
Apparently they are going to send one from Australia instead.
Not impressed.
Time to move on.......
I have received the remote thermostat so am going to install it, once I get the new hoses needed,
so hopefully next week I'll have the car going again.
Ian.
Re: I think my radiator is too big.....?
Posted: Thu May 12, 2016 6:57 pm
by Karlos
Excuses for my wild imagination first. Has anyone thought of
1.removing the mechanical water pump
2. Blank off the cavity where the old pump fitted.
3. Drill and bush a hole in the original pump cover
4. Fit a seal and shaft through the cover
5. Fit the original impeller to the shaft on the underside of the cover.
6. Fit an electric motor on top of the cover.
Space is tight underneath the inlet manifold but something may fit in there. For example a rearwindow wiper motor. I am sure there are people on the forum who could enhance and build something based on the above idea.
Advantages:
Retain the correct circulation round the engine and rad.
Pump itself becomes so much easier to remove and maintain.
You have all the advantages of the EWP controls.
Less pipe work to modify.
Disadvantages:
Bespoke solution
Could be difficult to do because of limited space
Re: Okay.......
Posted: Thu May 12, 2016 7:53 pm
by tony g
Ian, youre right it maybe time to move on... not good support from DC. Since this discussion started Ive read loads of negatives about the set up for street cars. Wish I'd done that before I spent out
Very interested in the remote stat idea though, so maybe we and DC can learn from it

. Be nice to keep the pipework tidy if its the "holy grail" of EWP and normal heater set up.
As an aside Im working on an EFI setup (mock up) thats a bit different so it will be nice to know if we can utilise the EWP too.
(I'll document the EFI stuff properly on here when its getting there...)
Thanks for your feedback to date
Cheers
Tony
sprint95m wrote:And still the saga continues Tony....
DC have changed their minds on getting their UK distributor to send me a new controller.
Apparently they are going to send one from Australia instead.
Not impressed.
Time to move on.......
I have received the remote thermostat so am going to install it, once I get the new hoses needed,
so hopefully next week I'll have the car going again.
Ian.
Re: I think my radiator is too big.....?
Posted: Thu May 12, 2016 7:58 pm
by tony g
Karlos, I like your thinking

The motors running continuous may be an issue though. I read that the early EWP's were troublesome due to motor failure and they fixed it by using motors from tried and tested electric fans (Davies Craig did at least).
Tony
Karlos wrote:Excuses for my wild imagination first. Has anyone thought of
1.removing the mechanical water pump
2. Blank off the cavity where the old pump fitted.
3. Drill and bush a hole in the original pump cover
4. Fit a seal and shaft through the cover
5. Fit the original impeller to the shaft on the underside of the cover.
6. Fit an electric motor on top of the cover.
Space is tight underneath the inlet manifold but something may fit in there. For example a rearwindow wiper motor. I am sure there are people on the forum who could enhance and build something based on the above idea.
Advantages:
Retain the correct circulation round the engine and rad.
Pump itself becomes so much easier to remove and maintain.
You have all the advantages of the EWP controls.
Less pipe work to modify.
Disadvantages:
Bespoke solution
Could be difficult to do because of limited space
Re: I think my radiator is too big.....?
Posted: Thu May 12, 2016 11:41 pm
by soe8m
Karlos wrote:Excuses for my wild imagination first. Has anyone thought of
1.removing the mechanical water pump
2. Blank off the cavity where the old pump fitted.
3. Drill and bush a hole in the original pump cover
4. Fit a seal and shaft through the cover
5. Fit the original impeller to the shaft on the underside of the cover.
6. Fit an electric motor on top of the cover.
Space is tight underneath the inlet manifold but something may fit in there. For example a rearwindow wiper motor. I am sure there are people on the forum who could enhance and build something based on the above idea.
Advantages:
Retain the correct circulation round the engine and rad.
Pump itself becomes so much easier to remove and maintain.
You have all the advantages of the EWP controls.
Less pipe work to modify.
Disadvantages:
Bespoke solution
Could be difficult to do because of limited space
Karlos can you tell me what is wrong with the original pump and what the advantages are of an ewp?
Jeroen