Duratec / imperial chassis build thread.
Discussion
David Long said:
I'm looking forward to seeing this thread develop. It looks like you know what you are doing and have the right contacts, but why the Arch imperial chassis rather than the (stiffer ?) metric one? Also I’m interested to know more about the reasons for your choice of gearbox.
I also opted for the Arch chassis. IMO much more nicely made. Nice joints, without the weld spatter powdercoated over.I also like the fact Arch will take it back, and put it on the jig it was built on to repair it.
I realy doubt the new ones are stiffer, unless they've changed the design. I suspect it's just sales talk. Ansar got quite arsey once, about a thread on BC, regarding a discussion about the merrits of the old chassis over the new ones.
I look forward to seeing this thread develope too.
Nice looking spec and awesome colour.
On the chassis front the differences in the metric and imperial chassis were first seen in 2008 RSA champs, CC really didn't know, as it was the first time identical spec (other than the chassis)cars raced. The newer chassis is more effective at getting power down exiting turns, it was also less forgiving in a crash. Arch still do the repairs to all the race chassis whether metric or imperial.
Interesting box choice, we use the Cat 6speed in the R300 race cars which are around 190hp, they lunch boxes often, i know that we are less sympathetic with the shifting, ie no lift upshifts etc but still it is a little fragile and not a great choice for 250plus hp.
Looking forward to watching your build, best of luck
J
On the chassis front the differences in the metric and imperial chassis were first seen in 2008 RSA champs, CC really didn't know, as it was the first time identical spec (other than the chassis)cars raced. The newer chassis is more effective at getting power down exiting turns, it was also less forgiving in a crash. Arch still do the repairs to all the race chassis whether metric or imperial.
Interesting box choice, we use the Cat 6speed in the R300 race cars which are around 190hp, they lunch boxes often, i know that we are less sympathetic with the shifting, ie no lift upshifts etc but still it is a little fragile and not a great choice for 250plus hp.
Looking forward to watching your build, best of luck
J
Martin Keene said:
What's the advantage of the older imperial design over the newer metric one?
It is a personal thing, the Arch one is asthetically more pleasing around the joints with the kudos(or not) of being hand made, the newer one is ultimately a better performer, although not by that much in real terms.I wouldn't have a problem with either chassis if price is the same and you had a choice of builder.......although i will always prefer the performace edge, trying to make the point it isn't that big a deal that people make it out to be.
I have never heard of either chassis being poorly constructed, i have had big smashed in both.....in fact a massive 7g 100mph jobbie in the metric and walked away from them all. Very strong chassis- which ever builder you choose.
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