What´s that .... ?!

What´s that .... ?!

Author
Discussion

vaurien

Original Poster:

339 posts

149 months

Monday 6th June 2016
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Regards

Gregor

nawarne

3,090 posts

260 months

Monday 6th June 2016
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Gregor....need sun-glasses for that.

Very nice!
Nick

JimmyZZ

239 posts

222 months

Tuesday 7th June 2016
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Makes the rest of us blush.
I don't think porn is allowed here.
Cover that up please!

Well done Gregor! I think I need to make a trip to Hungary soon to check that in the flesh

Greetings from Bavaria also to Odin!
Jimmy

m4tti

5,427 posts

155 months

Tuesday 7th June 2016
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Is that additional cooling around the head?. I see you've blocked the lower inlet off..

Edited by m4tti on Tuesday 7th June 07:38

vaurien

Original Poster:

339 posts

149 months

Tuesday 7th June 2016
quotequote all
Kind regards back JimmyZZ & Nick ! You are welcome !

Congratulation "m4tti" with 90% right.

Here the problem




and here the better solution




temperature-stabilized in all speed range optimized the engine temperature profile for a
better and longer life, better mapping , more power, less consumption ......



Kind regards

Gregor

Edited by vaurien on Tuesday 7th June 10:45

m4tti

5,427 posts

155 months

Tuesday 7th June 2016
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Have you done any machining on the head casting water jackets?

vaurien

Original Poster:

339 posts

149 months

Wednesday 8th June 2016
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Yes we made kit´s for Rover V8 and TVR S6 engine still now and install.

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Later follow AJP8 and other engines too.


Regards

Gregor


spitfire4v8

3,992 posts

181 months

Wednesday 8th June 2016
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I'm struggling getting my head around this so bear with me.
Are you sending the cold water into the block on the induction side and out of the head on the exhaust side? It *looks* like the exit water is coming lower than the head face, and that's no good unless you've worked out some way to weld shut the two lateral coolant transfers at the front and back of the engine. There are no transfers in the block other than the very front and back, but the head has coolant flow laterally between every chamber.
You sound a clever cookie so presumably you realise that your first picture doesn't actually represent the coolant flow through the sp6 engine.
The only way I can see this working is the water going in to the block and out of the head , with the ports centrally located longitudnally as you have in the second picture, and with the head gasket holes small in the centre and larger towards each end of the engine to try and maintain some evenness to the flow.
Because of those two large cross-block coolant ports at the front and back the water has to go in the block and out of the head for it to work at all. If they both port into the block you'd get next to no flow through the head without blocking the front and rear channels

vaurien

Original Poster:

339 posts

149 months

Wednesday 8th June 2016
quotequote all
Sorry that the schematic is a little bit misleadingly.

We drive/control the cooling water over the two core plugs into the block.


Regards

Gregor

spitfire4v8

3,992 posts

181 months

Thursday 9th June 2016
quotequote all
vaurien said:
Sorry that the schematic is a little bit misleadingly.

We drive/control the cooling water over the two core plugs into the block.


Regards

Gregor
good luck with that then ..

m4tti

5,427 posts

155 months

Thursday 9th June 2016
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spitfire4v8 said:
good luck with that then ..
So on your schematic your cold feed goes in via the core plug on the throttle body side? But in your pic the pipe around the head is connected to that collector on the output side where it would usually go to the heater. Or is that the way the pic has been taken.

mk1fan

10,517 posts

225 months

Thursday 9th June 2016
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Been thinking about electric water pumps for a while now. Looks like you have done the thinking for me!

vaurien

Original Poster:

339 posts

149 months

Friday 10th June 2016
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The Mechanical Water Pump is one of the last mechanical components of the modern engine which has long been considered an inefficient component that was designed as an accessory from the ever first engines. A mechanical belt driven pump installed on your car engines runs at the same speed as the engine regardless of how hot the engine is. Example: when travelling at high speeds down the freeway, the engine require less cooling as ram air is naturally cooling the engine however, the engine speed is high as is the mechanical water pump thus providing excessive cooling whilst draining the engine of power. Then in heavy traffic in high ambient, the engine is idling or slow and so is the belt driven mechanical pump, even though in this condition, extra coolant flow is required to cool the engine.

With an EWP and a digital controller, the speed of the pump is managed by the controller, which varies the supply voltage to the pump and so varies the speed of the pump, hunting for a target temperature. When the engine reaches the target temperature the controller locks on, constantly changing the pump speed with traffic and throttle conditions, maintaining the target temperature independent of the engine speed.

The important improvement for your vehicle comes from the fact that most of the power the mechanical pump takes from the engine can be reclaimed with the use of an ele.water pump hence the fuel savings. By removing the parasitic power losses of belt-driven water pumps, the ele.water pump may provide up to 10kw of extra power and additional fuel savings. The engine power used by the mechanical pump increases as the cube of its speed – so when the mechanical pump speed doubles from idle speed say; 600rpm to 1200 rpm, the power it takes increases by eight times. Then another eight times going to 2400 rpm, and so on up to maximum engine speed. It is this extra power and torque that is released by deleting the mechanical pump that provides the fuel savings that is estimated to be 3.5% to 10%.

Or take a look for this file too ......

https://drive.google.com/file/d/0B3l0goGWl5mZX1Q3d...



Kind regard


Gregor

Edited by vaurien on Friday 10th June 14:15

vaurien

Original Poster:

339 posts

149 months

Friday 10th June 2016
quotequote all
Sorry,


the download link was not working


https://drive.google.com/file/d/0B3l0goGWl5mZX1Q3d...


Regards

Gregor

vaurien

Original Poster:

339 posts

149 months

Saturday 23rd July 2016
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