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Kirkham Motorsports

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  • 1 Post By Morris
  • 1 Post By Morris

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  #1 (permalink)  
Old 05-23-2018, 04:01 PM
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Cobra Make, Engine: Kirkham #259
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Here's the Collector and as you can see it has a main fuel line and a Reserve line in the Collector..... it also and you can't see it ...but over the top of the collector is 2 hoses coming from the internal fuel pumps in the corners of the fuel cell so when in a turn you always have fuel being pumped to the Collector. (On Throttle in a Sweeping Corner all of the fuel will be swept to the rear of the cell and on the opposite side of the turn)....




Here's what he Reserve Pick up looks like in the Collector and just a foot note we run on the Reserve Pick up all of the time.




Here's where the Main and Reserve come out of the Fuel Cell.
This photo doesn't show the Electrical Connection for the 2 Pumps inside of the Fuel Cell. The Connectors would be below each Fuel output fitting. and those are -8 Fittings going forward.... Return line is -6 returning to the Cell.




Here's where we open up the Fuel Cell and install the internal Pumps and collector basins. we had to cut away some of the Sponge Foam to fit the Collectors in the Cell



These are the Collectors inside the Cell in each corner.... the balls roll inside each of the holes on the 3 sides of the Collector. and the out put for the fuel pump goes to the Collector in the front of the Cell so that the motor never runs out of fuel.



Then we seal it up and then insulate the out side from any heat



The Silicone and Insulation prevents Heat and any part of the Chassis rubbing on the Cell.








I must tell you when you do a Fuel Cell right.... it can get expensive...

And important issue is that the Angle on the fuel cell in the car needs to be between 8*degrees and 10*degrees to the ground so if I decided to make a Aero Device for the bottom of the Fuel Cell it would assist the down force on the rear of the car at speed.... how ever we did not need it ... the Wing worked fine.

Sorry for the long post.
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Old 05-23-2018, 04:15 PM
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Now Morris, a long post from you, I always enjoy what you have to say and always informative, including this one.

I'll read over in tonight and get back to you. The cost is a concern and I don't race anymore, so a high dollar, high tech unit isn't a must need, but at the same time it's a much better and safer system, even if it will be mostly street driven.

What is your best guestiment, on the cost of one your describing here ?

How far down does the tank sit below the Cobra's rear body/valance ?
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Old 05-23-2018, 05:59 PM
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Curiosity point for you fuel cell aficionados:

What is the usable life of the foam material?

It used to be a few years at most - has technology made any significant increase?
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Old 05-23-2018, 06:42 PM
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Quote:
Originally Posted by Tom Wells View Post
Curiosity point for you fuel cell aficionados:

What is the usable life of the foam material?

It used to be a few years at most - has technology made any significant increase?
Tom

With the gas of today the fuel cell companies require the foam to be changed every 5 years......(fuel + methanol)

We only run Sunoco 112 octane race fuel ⛽️ so we don’t have to follow that rule and we drain our fuel cell when KMP259 is idle for any time. Fuel is not in the cell that long.....
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Old 05-24-2018, 06:54 AM
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email Tom, in Cali
tommy2899@gmail.com

Lts of tank experience.....
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Old 05-24-2018, 07:40 AM
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email Tom, in Cali
tommy2899@gmail.com

Lts of tank experience.....
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Old 05-23-2018, 06:35 PM
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Quote:
Originally Posted by FUNFER2 View Post
Now Morris, a long post from you, I always enjoy what you have to say and always informative, including this one.

I'll read over in tonight and get back to you. The cost is a concern and I don't race anymore, so a high dollar, high tech unit isn't a must need, but at the same time it's a much better and safer system, even if it will be mostly street driven.

What is your best guestiment, on the cost of one your describing here ?

How far down does the tank sit below the Cobra's rear body/valance ?
The cost will vary......Fuel Safe Cell ....about $2500-$3000......internal pumps....$300......connectors and wiring....$250....approximately....

The fuel cell is even with the rear valance and pitched down to the frame rails so that our Torsional plate and the fuel cell meet ...
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