Lotus Elan

Cosworth YB Turbo Into Elan

PostPost by: Rob_LaMoreaux » Wed Nov 11, 2015 2:16 am

I know of a 246 HP Cosworth BDP powered Elan. That is quite crazy enough, especially before he flared the fenders to fit decent tires on it.

I suspect 400hp won't be as much fun since it will be too easy to loose it. Kind of like the early turbo esprits that didn't do much until they spun you around.

Rob
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PostPost by: stevebroad » Wed Nov 11, 2015 5:46 pm

dodo_z wrote:
stevebroad wrote:I don't agree with the use of glue to hold the breather cloth in position. I would have thought that this could block the holes in the release film and restrict resin flow into the breather cloth. But what do I know?


The usage of spray glue won't be a problem if you're not going to use too much of it.

When working with Resin-Infusion you're using special spray glue to fix every single layer you're putting onto your mold. All you need is a little bit more material and knowledge - Youtube is a good resource for the knowlege ;)
The results are stunning as you get parts without any pinholes and with an almost perfect fiber to resin ratio.

dietmar


Well, it would make keeping everything in place a lot easier, I will give it a try.
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PostPost by: stevebroad » Wed Nov 11, 2015 5:48 pm

Rob_LaMoreaux wrote:I know of a 246 HP Cosworth BDP powered Elan. That is quite crazy enough, especially before he flared the fenders to fit decent tires on it.

I suspect 400hp won't be as much fun since it will be too easy to loose it. Kind of like the early turbo esprits that didn't do much until they spun you around.

Rob


OK, so 520bhp is a little too much, then? :-)
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PostPost by: stevebroad » Thu Nov 12, 2015 5:26 pm

Dash mould made and now being tidied up ready for carbon and vacuuming.

Image

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Dash top is getting there, still not as flat as I want but not far off:

Image
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PostPost by: patrics » Thu Nov 12, 2015 9:01 pm

Steve

I have to say 520 bhp is just ridiculous you should have gone for the high torque 500 bhp version with the better fuel economy.

Regards
Steve
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PostPost by: Certified Lotus » Fri Nov 13, 2015 1:01 am

Steve, needless to say you will be feathering the throttle quite a bit with 520HP. It's an interesting excercise, your build. I'm wondering if your primarily building for the track just to blow the doors off anything that comes close :mrgreen:
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PostPost by: stevebroad » Fri Nov 13, 2015 7:54 am

patrics wrote:Steve

I have to say 520 bhp is just ridiculous you should have gone for the high torque 500 bhp version with the better fuel economy.

Regards
Steve


Damn, didn't think of that! :-)
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PostPost by: stevebroad » Fri Nov 13, 2015 7:58 am

Certified Lotus wrote:Steve, needless to say you will be feathering the throttle quite a bit with 520HP. It's an interesting excercise, your build. I'm wondering if your primarily building for the track just to blow the doors off anything that comes close :mrgreen:



Drag racing is the main goal, with some sprints and hillclimbs thrown in, whilst keeping it UK road legal.
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PostPost by: roblotus79 » Fri Nov 13, 2015 6:09 pm

What aero are you thinking for hillclimbing (if any)

I think it would be a hoot
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PostPost by: stevebroad » Mon Nov 16, 2015 10:29 pm

Switch panel completed:

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PostPost by: john.p.clegg » Tue Nov 17, 2015 6:26 am

Would that knob be a fuel mixture trim?

John :wink:
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PostPost by: stevebroad » Tue Nov 17, 2015 9:42 am

john.p.clegg wrote:Would that knob be a fuel mixture trim?

John :wink:


No :-)

It's a hydraulic clutch flow control valve. It is designed to help prevent shock loading on the transmission from abrupt clutch engagement. The valve allows the clutch to slip slightly during engagement, thus reducing shock loads and increasing the life of drive train components. It also gives the tyres a better chance of hanging on to the track.

However, the type sold by the likes of Demon Tweeks (at 5 times the cost) are only adjustable by shims and have to be removed to do so, requiring the clutch to be re-bled. This one is infinitly adjustable from the cabin :-)

It isn't a road or race car part and I had to specify seals that were compatible with clutch fluid.
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PostPost by: rgh0 » Tue Nov 17, 2015 10:27 am

Mechanical launch control - nice :D

cheers
Rohan
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PostPost by: stevebroad » Tue Nov 17, 2015 1:03 pm

rgh0 wrote:Mechanical launch control - nice :D

cheers
Rohan


Well, this will work in conjunction with the launch control system, but I know what you mean as it would help a car sans LC.
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PostPost by: CBUEB1771 » Tue Nov 17, 2015 2:04 pm

rgh0 wrote:Mechanical launch control - nice :D

cheers
Rohan


I get this for free with a sticking slave cylinder, must say it is a bit more notchy than what Steve is looking for.
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