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Author: Subject: Warner R4 Build Diary
cloudy

posted on 19/12/06 at 08:12 PM Reply With Quote
Some progress, sorry for the awful pic - it was dark.....




Now thinking about fuel tank placement, its the half round object in the back center of this render. Is this a really bad idea for location? Shame as it works well in this orientation....


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Peteff

posted on 19/12/06 at 08:17 PM Reply With Quote
Is it going to have an engine, where is it going to fit and how are you going to get it in there? There's not going to be a lot of options with the bar from the roll bar over the gap behind the seats and the diff cage and suspension there as well.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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cloudy

posted on 19/12/06 at 08:24 PM Reply With Quote
read back through the thread before asking stupid questions!

Yes it will have an engine, a new concept I know
It's a motorbike engine, and it's already included in that render if you look carefully!

James

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gttman

posted on 19/12/06 at 08:53 PM Reply With Quote
I have to say I share the concern about getting in and out with the side bars so high.

Like the design though and I think you are definatelly on the right lines.





Andygtt

Please redefine your limits

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cloudy

posted on 19/12/06 at 09:07 PM Reply With Quote
this won't be a luxurious ride! you will need to get in by stepping in on the bar

I expect the discomfort to continue during the journey with the engine exhausts behind your head, and the possiblility of wheels falling off....


James

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Peteff

posted on 20/12/06 at 12:26 AM Reply With Quote
read back through the thread before asking stupid questions!

I posted earlier in the thread and you answered that you had removed some bars if you go back over the thread. I view things from a practical perspective and think other people do the same. If something looks right it probably is and the bar over where your engine drops in doesn't look right to me, possibly a bar either side with a gap in the middle. Show me the engine in place with a viable drive solution and I'll admit I'm stupid. I have built cars and driven them and helped build cars from scratch and from kits and have a good idea of what works.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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cloudy

posted on 20/12/06 at 01:21 AM Reply With Quote
The top bar is removable, yes the engine fits through the gap, and yes the entire drivetrain fits. I may be new to this and learning, I am not however, stupid.

James

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Doug68

posted on 20/12/06 at 01:35 AM Reply With Quote
Like - lets chill dudes!
I think that there's plenty of pre-Christmas tension in the air at the moment.

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Sven

posted on 20/12/06 at 05:49 AM Reply With Quote
James,

I love it. Like the look, the idea and your execution. Nice!

I agree with others that the topmost horizontal tubes near the passengers heads need moving for safety and that the rear bulkhead outer tubes and rollbar should be one. Does seem to be a lot of unusable space behind the drivers seat.

The gas tank is right out there. Could you fit one in the front, forward of the passengers feet? That way it'll help balance the car and keep it inside the frame away from annoying SUVs and whatnot.

-Steve





"Lightheadedness through quickness"

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cloudy

posted on 20/12/06 at 09:17 AM Reply With Quote
Sorry, bad day!

I've built the entire car around the engine, it fits in the space, as i've already hoisted it in to check, I wanted the minimum wheelbase I could get away with

Agreed on the tubing near the head - Im' still mulling that one over!

James

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cloudy

posted on 20/12/06 at 09:28 AM Reply With Quote
you can see here how it fits in the space:


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gttman

posted on 20/12/06 at 10:04 AM Reply With Quote
quote:
Originally posted by cloudy
this won't be a luxurious ride! you will need to get in by stepping in on the bar

I expect the discomfort to continue during the journey with the engine exhausts behind your head, and the possiblility of wheels falling off....


James


LOL, very good

Actually my concern is not getting in, its getting out.
But it will be no harder than the Batmobile and Robin used to manage.





Andygtt

Please redefine your limits

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cloudy

posted on 20/12/06 at 10:12 AM Reply With Quote
lol i'll be sure to provide a video for your entertainment


James

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gttman

posted on 20/12/06 at 12:25 PM Reply With Quote
Will that mean you will also be wearing tights?





Andygtt

Please redefine your limits

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Peteff

posted on 20/12/06 at 06:19 PM Reply With Quote
The top bar is removable,

See, that's all it needed, now it makes sense. Is it mounted same as the bike with a chain driven diff? I can't see it in your render although I have looked.





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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cloudy

posted on 20/12/06 at 10:13 PM Reply With Quote
yeah, sorry for going off on one - yeah its a chain driven cossie diff

James

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andyd

posted on 20/12/06 at 10:51 PM Reply With Quote
quote:
Originally posted by cloudy
yeah its a chain driven cossie diff

Can I ask where you sourced the diff from? I'm still deciding whether to use a chain driven one or use a very small prop shaft.





Andy

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cloudy

posted on 21/12/06 at 09:11 AM Reply With Quote
I bought the entire rear axle from ebay. Then took the diff out of the casting, knocked the bearings off - made up some spacers and fitted sealed block units. Then had B&C express make up the correct sprocket to match up with the crown mounts

James

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andyd

posted on 21/12/06 at 10:48 PM Reply With Quote
quote:
Originally posted by cloudy
I bought the entire rear axle from ebay. Then took the diff out of the casting, knocked the bearings off - made up some spacers and fitted sealed block units. Then had B&C express make up the correct sprocket to match up with the crown mounts

Ah right you did it the easy way then!





Andy

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Doug68

posted on 22/12/06 at 12:25 AM Reply With Quote
The fuel tank looks relatively small 20L or less?
If thats the case why not put it on top of the engine behind the roll bar, essentially where it'd be on the bike?
I had a 1993 GSXR-1100WP it didn't have a fuel pump so going for gravity feed may be cause less aggro in the carburation dept.
Given a small tank i don't think the change in height of the CofG would be much to worry about.

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cloudy

posted on 22/12/06 at 09:32 AM Reply With Quote
yeah i'm tempted to do it that way, trouble is the shape, its very tall and thin - I was hoping to have the nice curved back polished and engraved with the logo for that extra something, so wanted it to be on show. I know 7's have it right at the back, but they have the fibreglass offering *some* protection. What do people reckon?

James

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gttman

posted on 22/12/06 at 09:48 AM Reply With Quote
On your car I'd put it between the front wheels if there is room, this is what I have done and it keeps the variable weight low and protected by the chasis.

Most ideal place for it though is right in the centre of the car, but not very practical.





Andygtt

Please redefine your limits

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cloudy

posted on 22/12/06 at 09:54 AM Reply With Quote
I'm hugely lacking in space at the front end, I *might* manage it but it would be VERY close to a front impact, just a bit of a worry

James

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iank

posted on 22/12/06 at 11:04 AM Reply With Quote
I've seen triangular (prism shaped) tanks that fit behind the seats. Good weight distribution, but you lose the helpful little space that can be used for weathergear and an emergency toolkit.
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Minicooper

posted on 22/12/06 at 05:47 PM Reply With Quote
quote:
Originally posted by iank
I've seen triangular (prism shaped) tanks that fit behind the seats. Good weight distribution, but you lose the helpful little space that can be used for weathergear and an emergency toolkit.


The Atom has the tank behind the seats see piccie, but it doesn't look like you have the room with the bike engined being further forward than a car engine would be

What wheelbase are you going to have? I know it would be a total pain but a few more inches always helps......probably the safest bet

Cheers
David

[Edited on 22/12/06 by Minicooper]

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