Julian B
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 posted on 20/6/03 at 09:14 AM |
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How to go about
Hi all
I have been looking for the past several months at building a new car using a rover v8 manual engine and box.
I have looked at the 7 type cars offered by Dax and Leugo and both seem fantastic, but my budget is too tight to go down these routes.
To that extent i have decided to build a championesque car and modify it to fit the engine and box. I have just 3 questions regarding the
modifications to the chassis that i will need to make.
1 By increasing the cars width will i have problems sourcing/ making a bonnet and what about sourcing a wider windscreen?
2 Dax say that the dedeion suspension is better than the irs system when using the Rover lump because of the camber shift under squat conditions. The
Ron Champion book has nothing about using a sierra lsd. How does this attach to the chassis and how do you make a Dedion system?
3 What additional strengtheners would you include in the chassis?
Sorry for the long windedness of the questions but i hope you can help.
Cheers again
Julian Brewer
Ps I already drive round in a Robin Hood 2b so I would like the new car to handle and drive predictably, something that my hood doesn’t do. Power to
weight is also important and I don’t want to squander the engines power on un-necessary weight.
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stephen_gusterson
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| posted on 20/6/03 at 10:23 AM |
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do a search for cymtrik 's posts - look in the member list for correct spelling- he gives pointers to strenghen chassis.
If you go any kinda IRS it will add bags of time to your build and as far as I know you will be on your own as no plans for an IRS setup on a locost
exits. Seriously consider the pain of all the time spent and possibly getting bad geomety over a beam axle as perhaps too much risk.
You fold the bonnet to suit. If you mean nosecone, then std ones are likely not to fit.
'The Ron Champion book has nothing about '
most things - dont rely on it too much. Its a guide only. Read this group and all you can to try and avoid the hassles and inaccuracies built into the
book.
atb
steve
oh yea
and get an sva manual......
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timf
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| posted on 20/6/03 at 10:32 AM |
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if you use one of jim mcsorleys drawings the 7+4 plans they are accurate and will also house the rv8 no problems
http://www.mcsorley.net/locost/
2 see this site re irs back end http://locost7.info/files/suspension/sierrairs/REAR.jpg
3 see this post http://forum.locostbuilders.co.uk/xmb/viewthread.php?tid=5449
and this one
http://forum.locostbuilders.co.uk/xmb/viewthread.php?tid=5269
tim
[Edited on 20/6/03 by timf]
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craig1410
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| posted on 20/6/03 at 08:01 PM |
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Julian,
Check out my website and look in the Photo Archive for LB forum member "Simon". We are both building Rover V8 Locost's. Simon is
further down the line than me and is using IRS. I am using a de-dion kit which I bought indirectly from MK Engineering. They no longer produce it but
you can get one from Dax for about £200. I can give more details if needed. Stu16V from this forum used the Dax de-dion kit in his car but I
can't remember which engin he used. Traction is reputed to be excellent and should be better than anything else in a straight line. On corners
de-dion should be every bit as good as IRS except where it is bumpy. IRS give a better ride quality, de-dion better traction and live axle is easier
to build - decide which is best for you on that basis is my advice. With the RV8 I want traction so that I can let it rip!
The de-dion kit doesn't require much change to the chassis normally although mine did because I was using a de-dion kit which was designed for a
standard width chassis. Stu16V should be able to advise on the width of the dax de-dion kit so that you can decide if it will fit on a wider chassis
or not.
Well I hope this information gets you moving fowards but please give me a shout if you want more info. My website should prove useful in visualising
how it all goes together.
Cheers,
Craig.
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Stu16v
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| posted on 20/6/03 at 08:45 PM |
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*waves* I'm here....
I've used a 16v VX engine, so getting power down is quite important. In fact, the setup is that good, sometimes it spoils the fun, when the loud
pedal is stamped on, it dont go sideways, it goes fowards......
Essentially, the Dax setup keeps the standard Sierra width. The beauty of the de-dion setup is that it offers more grip than a live axle on the bumpy
stuff (a lot less unsprung weight) but keeps both wheels level on the ground (unlike IRS).
HTH Stu.
Dont just build it.....make it!
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