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Re: Cosworth YB Turbo Into Elan

PostPosted: Wed Jan 03, 2018 12:05 pm
by stevebroad
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?

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Re: Cosworth YB Turbo Into Elan

PostPosted: Wed Jan 03, 2018 9:54 pm
by stevebroad
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.

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Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 05, 2018 3:50 am
by StressCraxx
I think you will have a very entertaining car when you are done.
Enjoy.

Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 05, 2018 6:29 pm
by stevebroad
Plenum nitrous injector, one down and three to go.

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Re: Cosworth YB Turbo Into Elan

PostPosted: Mon Jan 08, 2018 11:27 pm
by stevebroad
Brass hex bar magically turned into three more nitrous jets. The bent one shows what happens when you fail to tighten the chuck.

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Re: Cosworth YB Turbo Into Elan

PostPosted: Thu Jan 11, 2018 11:29 am
by stevebroad
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.

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Re: Cosworth YB Turbo Into Elan

PostPosted: Thu Jan 11, 2018 11:38 am
by pauljones
Very interested.looks an amazing project.
Im particulary interested in your rear end..!!

Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 12, 2018 10:57 pm
by stevebroad
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.

Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 12, 2018 11:01 pm
by stevebroad
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 :-)

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Re: Cosworth YB Turbo Into Elan

PostPosted: Sat Jan 13, 2018 1:38 am
by Certified Lotus
Steve, every time I think I have good mechanical skills you put me to shame. I do enjoy your work! Keep it up.

Re: Cosworth YB Turbo Into Elan

PostPosted: Sat Jan 13, 2018 10:50 am
by stevebroad
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 :-)

Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 19, 2018 12:16 pm
by stevebroad
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.

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Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 19, 2018 6:14 pm
by stevebroad
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.

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Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 19, 2018 8:34 pm
by pauljones
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.

Re: Cosworth YB Turbo Into Elan

PostPosted: Fri Jan 19, 2018 8:56 pm
by stevebroad
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.