Lotus Elan

Cosworth YB Turbo Into Elan

PostPost by: stevebroad » Wed Jan 03, 2018 12:05 pm

Spent an hour ruminating on where to locate the nitrous injectors. I wanted to hide them but that made it very difficult to maintain them.

I therefore think that the best place will be here. A bit of machining and tapping required but nothing too tricky. Can anyone see any issues with this location?

nitrous-nozzle-position-option-010118.jpg and
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PostPost by: stevebroad » Wed Jan 03, 2018 9:54 pm

Change of mind.

More ruminating on nitrous injector location. Now thinking that direct into the trumpet in the plenum would work, be easier to do and keep pipes short. Looking for a freer flowing 90 deg 1/8 NPT union.

20180103_171422.jpg and
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PostPost by: StressCraxx » Fri Jan 05, 2018 3:50 am

I think you will have a very entertaining car when you are done.
Enjoy.
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PostPost by: stevebroad » Fri Jan 05, 2018 6:29 pm

Plenum nitrous injector, one down and three to go.

20180105_175925.jpg and
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PostPost by: stevebroad » Mon Jan 08, 2018 11:27 pm

Brass hex bar magically turned into three more nitrous jets. The bent one shows what happens when you fail to tighten the chuck.

20180108_192804.jpg and
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PostPost by: stevebroad » Thu Jan 11, 2018 11:29 am

For anyone still remotely interested :-)

Drilled and tapped plenum for nitrous injectors. All nitrous pipes are equal length, not essential but allows initial burst of nitrous to get to cylinders at the same time. One of those rare jobs that was easier and quicker than expected. The main reason being that the aluminium was thicker than I thought so I didn't need to get additional material welded on.

20180110_164046.jpg and


20180110_164520.jpg and


20180110_170258.jpg and


20180110_172418.jpg and
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PostPost by: pauljones » Thu Jan 11, 2018 11:38 am

Very interested.looks an amazing project.
Im particulary interested in your rear end..!!
Kick the tyres and light them fires...!!!!!!!
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PostPost by: stevebroad » Fri Jan 12, 2018 10:57 pm

pauljones wrote:Very interested.looks an amazing project.
Im particulary interested in your rear end..!!


Thanks.

:-) It was born out of necessity. OEM dampers restricted wheel width.
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PostPost by: stevebroad » Fri Jan 12, 2018 11:01 pm

A bit of bodywork today. Dry fitted exhaust shield and started on patterns for the ends in order to make it look less like a kit car exhaust :-)

exhaust-shield-120118-2.jpg and


exhaust-shield-120118-3.jpg and


exhaust shield 120118 (4).jpg and
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PostPost by: Certified Lotus » Sat Jan 13, 2018 1:38 am

Steve, every time I think I have good mechanical skills you put me to shame. I do enjoy your work! Keep it up.
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PostPost by: stevebroad » Sat Jan 13, 2018 10:50 am

Certified Lotus wrote:Steve, every time I think I have good mechanical skills you put me to shame. I do enjoy your work! Keep it up.


Thanks, Glen. but it all only looks good from a distance. For example, it is fortunate that the tabs and nuts that I welded on are hidden :-)
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PostPost by: stevebroad » Fri Jan 19, 2018 12:16 pm

Well, that was almost an unmitigated disaster.

Easy bit - Mould came off the car fairly easily and fitting 2 layers of prepreg was a breeze. Wrapped up, vacuumed and cured at 120 deg C for an hour.

curse word bit - Getting carbon out of the mould was a nightmare, should have taken a few minutes but took me over an hour. No idea why, mould was prepared properly and had 8 coats of release agent. Had to get heavy handed and it is just as well that I hadn't planned to make multiple parts with the mould as the gel coat is destroyed. Also fortunate that I paint my carbon as the surface is f**k*d.

But at least it seems to fit pretty well. Once it is trimmed it will be fine, honest! :-)

Hopefully the smaller front cap will be easier.

exxhaust-shield-rear-cap-180118-1.jpg and


exxhaust-shield-rear-cap-180118-2.jpg and


exxhaust-shield-rear-cap-180118-3.jpg and


exxhaust-shield-rear-cap-180118-6.jpg and
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PostPost by: stevebroad » Fri Jan 19, 2018 6:14 pm

Steering wheel finally finished. All wires in connecting cable used up and no room for any more switches anyway :-)

Screen contains all road legal warning lights plus speedo and tacho along with outputs from the numerous engine sensors. Switches are for the linelock, launch and traction control, nitrous activation (illuminated), ECU map strategy options, parachute (with keyed activation and warning lamp), fire extinguisher, gearbox neutral and indicators. The four black buttons control the various screen pages.

sterring-wheel-finished-190118-2.jpg and
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PostPost by: pauljones » Fri Jan 19, 2018 8:34 pm

Steve,

What F1 car us that going on? Im calling it the,

SB/2018/001/A

Your work is amazing, i wish i had your drive.
Kick the tyres and light them fires...!!!!!!!
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PostPost by: stevebroad » Fri Jan 19, 2018 8:56 pm

pauljones wrote:Steve,

What F1 car us that going on? Im calling it the,

SB/2018/001/A

Your work is amazing, i wish i had your drive.


:-)

I could do with more, so I can finally get it out on the strip.
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