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Minimum engine/air box to bonnet clearance

Started by jd lj , Nov 19 2016 02:28 PM

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#26 jd lj

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Posted 18 March 2017 - 06:39 AM

.

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#27 _Bomber Watson_

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Posted 18 March 2017 - 01:14 PM

Was hopeing someone smart would chime in, but i cant see any way the carb can tilt back.

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#28 jd lj

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Posted 18 March 2017 - 05:23 PM

Well since we're obviously lacking someone smart or experienced to chime in I've gone ahead and drilled the backing plate. The fibreglass outer shell isn't as thick as the MDF version that I made to make the mould from so this means that there was the potential that I could move the air box forward to get a bit more room between it and the heater box. I didn't want to over do it as I want to keep as much free space around the ram tubes as possible.

Drilling out the holes for the ram tubes in the alloy backing plate wasn't much fun due to the hole saw and drill press having a bit of a wobble and not liking the load.

I'll fit the rubber seal tomorrow and bolt it all on. Hopefully the rain stops so I can take it for a test drive.

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#29 jd lj

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Posted 18 March 2017 - 05:56 PM

Well since we're obviously lacking someone smart or experienced to chime in I've gone ahead and drilled the backing plate. The fibreglass outer shell isn't as thick as the MDF version that I made to make the mould from so this means that there was the potential that I could move the air box forward to get a bit more room between it and the heater box. I didn't want to over do it as I want to keep as much free space around the ram tubes as possible.

Drilling out the holes for the ram tubes in the alloy backing plate wasn't much fun due to the hole saw and drill press having a bit of a wobble and not liking the load.

I'll fit the rubber seal tomorrow and bolt it all on. Hopefully the rain stops so I can take it for a test drive.

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#30 jd lj

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Posted 18 March 2017 - 05:58 PM

Sorry for the double post, my phone froze and then reloaded the above.

As you can see I'm obviously not smart or experienced either. Lol

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#31 _Bomber Watson_

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Posted 18 March 2017 - 08:24 PM

:spit:

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#32 grumpy xu1

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Posted 19 March 2017 - 12:13 AM

Hi James you could try starting it putting it in gear & letting the clutch out enough that the driveline loads up & quickly pushing the clutch back in & check the movement mate. Hope that makes sense. Gary.

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#33 warrenm

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Posted 19 March 2017 - 05:33 AM

I don't think you'll get 10mm movement rearwards, so should be safe.

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#34 _Agent 34_

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Posted 19 March 2017 - 06:51 AM

technically - it should move forward based on the rear wheel rotation - i reccon you will get nil - unless you dump it in reverse, lol

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#35 orangeLJ

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Posted 19 March 2017 - 01:07 PM

I just want pictures

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#36 jd lj

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Posted 19 March 2017 - 06:03 PM

Well it's early days as far as road testing this work of art, but I got a short test drive in between the rain.

And we have success, no clearance issues and it works well. It's a tight fit getting the outer shell on and off but due to 12 months work it appears that I've made a complex idea into a simple design.

I still need to paint it and modify the heater hose brackets and whatever other steps in evolution I come up with.

I had a happy afternoon.

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#37 _duggan208_

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Posted 19 March 2017 - 11:29 PM

Ah yes, that means there will be pics soon.

Regards

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#38 LC-GTR-1969

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Posted 20 March 2017 - 01:09 PM

pics!

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#39 jd lj

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Posted 21 March 2017 - 07:00 PM

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#40 jd lj

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Posted 21 March 2017 - 07:10 PM

Sorry for the bad photo sizing, that's not my strong point. I've got more, but they're probably no good at that size.

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#41 _Bomber Watson_

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Posted 21 March 2017 - 07:49 PM

Dude, find a random 13 year old on the street and ask him to do it for you.

The peanut gallery demands picks.

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#42 RallyRed

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Posted 21 March 2017 - 07:57 PM

hmmmmmm...opportunity here.....get a crowd funding thingo happening..when it gets to $100...upload the pics!! ...lol

Keen to see the pics.....

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#43 jd lj

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Posted 22 March 2017 - 06:16 PM

https://www.flickr.c...2478@N02/9b4RTF

Let's see if the photo is any better this time???

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#44 _Bomber Watson_

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Posted 22 March 2017 - 06:21 PM

Muuuch better.

Dayum that looks fine.

Any info on the progressive throttle linkage?

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#45 jd lj

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Posted 22 March 2017 - 06:32 PM

Thanks Bomber, when you open the link could you see the other photos?

As for the accelerator cable wheel /pulley, I couldn't find any products suitable for sale so I made my own. By using the wheel the cable stays at the same height unlike when you use a lever. This way it stays centred in the outer sleeve and runs smoother. I made these to suit an 8mm linkage rod. It's not elliptical to make it progressive but is round. I recently got a batch of these made to sell them if anyone is interested just pm me.

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#46 RallyRed

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Posted 22 March 2017 - 06:38 PM

That's pretty sexy!!.....do you plan any dyno runs back to back with / without?

Whats with the plumbers cap over the end?..just for storage?

Wonder what it would be like if/when you duct it out to the front.....100mph of wind belting in there would ram it?

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#47 _Agent 34_

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Posted 22 March 2017 - 06:41 PM

Sorry for the bad photo sizing, that's not my strong point. I've got more, but they're probably no good at that size.

he can build a air box like this but cannot re size photos LOL .

really good job james on this top effort.

they will be linning up.

g

just re looked at it again and it's wicked

Edited by Agent 34, 22 March 2017 - 06:42 PM.

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#48 jd lj

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Posted 22 March 2017 - 06:56 PM

If you look closely you'll notice that the snout is pointed directly to the area between the headlight and the radiator so that if anyone desires they could duct it through there to get cold air from the grill.

The hose clamp and the rubber seal hold the internal cone shaped air filter in place.

Yes Grant, my skills at making things far exceeds my computer skills.