M18 140mm

[J Smith]

You could easily make the Xray M18 140mm. All you have to do is make the chassis 10mm shorter, with the motor mounted in the center above the driveshaft, the cells would be mounted saddle pack style and then make the driveshaft shorter. Thats about the best idea I can come up with.

I know someone that might make this happen, but I cannot say who.

;)

[Al Coholica]

It would also be possible and leave the motormount where it is..
Why would you like to make a 140mm M18? Is it just for the bodies or do you race at a very technical circuit?

[J Smith]

To make the car more technical is what I am trying to do.

You could leave the motor mount where it is, but its hard enough to mount 5 cells let alone 6 in a 140mm.

[TFRMicro]

150mm chassis can set up like a 140mm...I don't know why you would want 140mm other then using HPI bodies... That 10mm you lose to using 140mm could mean alot of problems to lay down your electonics and batteries...no point.

[J Smith]

Trust me, only a person here that knows how to trully tune any R/C car for any type of racing will know that that 10m will go a loooong way in the way the car drives and handles.

I mean in Nascar racing they have to make there chassis according to the rules and if the angles are off by mm that means a penatly of like $10,000. Now you can see why it might help.

[patcollins]

If you measure the wheelbase the M18 isnt quite 150 anyway. I say shorten it by 5mm and you could probably get by with doing alot less work.

[pkh]

Originally posted by J Smith
Trust me, only a person here that knows how to trully tune any R/C car for any type of racing will know that that 10m will go a loooong way in the way the car drives and handles.

I mean in Nascar racing they have to make there chassis according to the rules and if the angles are off by mm that means a penatly of like $10,000. Now you can see why it might help.

10m does go a long way, but even full size cars don't have 10m wheelbases! ;)

Sorry, couldn't resist!

It seems the general consensus is that the longer wheelbase is better for racing/handling. However, a shorter wheelbase would give you a tighter turning radius for tight curves. I haven't explored the math thoroughly, but I believe the 7% reduction in wheelbase will give a corresponding 7% reduction in turning radius (at least to first order). Not a dramatic change, but it could help in tight quarters.

Regards,

Paul

[Pipeous]

Depending on the track, it does make a big difference.

It wouldn't be hard to do, the hardest part being the driveshaft. Would this be something people would want? I imagine it would fly as a few people I know like the shorter wheelbase (and the bodies that go with it.

[DrDiff]

Penguin is supposedly working on a 140mm M18 chassis. For more information click here (http://www.penguinrc.com/products/sneek_peek.html).

[terrible]

actually this is what I was looking for.
http://www.egrracing.com/mart/product_info.php?cPath=84_86&products_id=335
Some one on 0ne18th.com found it again for me. Thanks for the help though.;)

[RadiShack]

10 mm is a big differnce for handleing. Youll gain ALOT more steering and in response. as far as setup as electronics, it is limited.. But you just have to find the setup...I can tell u this, you wont beable to fit KANs or CBPs if u make it a stick pack, you need GP1100s or 1250s because teh can size on those are shorter.

[RadiShack]

here the one my frend made http://yourmicro.com/forums/showthread.php?s=&threadid=14506&highlight=allblue