Owners' opinions on their Evolution chassis
Discussion
macdeb said:
What are the differences apart from the outriggers?
chassis tube specificationchassis tube diameters and locations
cross bracing
clearance for Ls install
wishbone and shock pickups closer to T car than griff but designed by CAD/Cam
tube wishbones
cnc ali uprights
stronger hubs
bigger braking configurations
everything geo wise is adjustable with some funky cam locks to rid you of the guesswork
but as others have said, its on the site
SteveSPG said:
chassis tube specification
chassis tube diameters and locations
cross bracing
clearance for Ls install
wishbone and shock pickups closer to T car than griff but designed by CAD/Cam
tube wishbones
cnc ali uprights
stronger hubs
bigger braking configurations
everything geo wise is adjustable with some funky cam locks to rid you of the guesswork
Thanks Steve, just wanted a brief overview from someone.chassis tube diameters and locations
cross bracing
clearance for Ls install
wishbone and shock pickups closer to T car than griff but designed by CAD/Cam
tube wishbones
cnc ali uprights
stronger hubs
bigger braking configurations
everything geo wise is adjustable with some funky cam locks to rid you of the guesswork
Edited by macdeb on Friday 1st August 09:55
SonicHedgeHog said:
Did you get a decent price for your old chassis/engine/gearbox? Just wondering how big a dent it made in the big chassis bill.
Selling the old chassis etc didn't make much of a dent into the cost of the whole project. The cost of the Evo chassis is quite small when compared to all of the other costs involved in a complete build so you need to be realistic in your budgeting.macdeb said:
SteveSPG said:
chassis tube specification
chassis tube diameters and locations
cross bracing
clearance for Ls install
wishbone and shock pickups closer to T car than griff but designed by CAD/Cam
tube wishbones
cnc ali uprights
stronger hubs
bigger braking configurations
everything geo wise is adjustable with some funky cam locks to rid you of the guesswork
Thanks Steve, just wanted a brief overview from someone.chassis tube diameters and locations
cross bracing
clearance for Ls install
wishbone and shock pickups closer to T car than griff but designed by CAD/Cam
tube wishbones
cnc ali uprights
stronger hubs
bigger braking configurations
everything geo wise is adjustable with some funky cam locks to rid you of the guesswork
Edited by macdeb on Friday 1st August 09:55
Mark
domV8 said:
Is this actually a better chassis than the T-series chassis - ie. would this produce the best handling TVRs out there..? (Better handling than Sagaris, etc?)
it is stiffer, there is more cross bracing, it is marginally heavier as some of the chassis tubes are thicker. its not just the chassis though, the ali uprights and wishbones are all new so total weight is not much different as a rolling chassisi saw some of the cad stuff that was done, for suspension geometry and from the discussions it is definately aimed at handling more power better. There is a clear target to produce the best handling car within the chassis envelope dictated by the body (its still got to fit the chin/griff body
it has built in pickup points for roll cages etc, so can be made stiffer still for those who are really trying hard
IF i were considering a big HP upgrade in a griff/chim it would be part of the spec list
from my perspective my t car chassis/suspension is better with the LS than my griff chassis,
nobody will know for sure till one is built and the suspension dialled in, but the first one will be a stonker......
Edited by SteveSPG on Thursday 7th August 15:09
SteveSPG said:
domV8 said:
Is this actually a better chassis than the T-series chassis - ie. would this produce the best handling TVRs out there..? (Better handling than Sagaris, etc?)
it is stiffer, there is more cross bracing, it is marginally heavier as some of the chassis tubes are thicker. its not just the chassis though, the ali uprights and wishbones are all new so total weight is not much different as a rolling chassisi saw some of the cad stuff that was done, for suspension geometry and from the discussions it is definately aimed at handling more power better. There is a clear target to produce the best handling car within the chassis envelope dictated by the body (its still got to fit the chin/griff body
it has built in pickup points for roll cages etc, so can be made stiffer still for those who are really trying hard
IF i were considering a big HP upgrade in a griff/chim it would be part of the spec list
from my perspective my t car chassis/suspension is better with the LS than my griff chassis,
nobody will know for sure till one is built and the suspension dialled in, but the first one will be a stonker......
Edited by SteveSPG on Thursday 7th August 15:09
Mark
SteveSPG said:
it is stiffer, there is more cross bracing, it is marginally heavier as some of the chassis tubes are thicker. its not just the chassis though, the ali uprights and wishbones are all new so total weight is not much different as a rolling chassis
i saw some of the cad stuff that was done, for suspension geometry and from the discussions it is definately aimed at handling more power better. There is a clear target to produce the best handling car within the chassis envelope dictated by the body (its still got to fit the chin/griff body
...
One of the goals was to make the roll centre heights more appropriate to the vehicles. The Griff/Chim have (especially at the front), very low roll centres, which results in a fair bit of body roll. Higher roll centres mean less body roll without stiffer springs/dampers. i saw some of the cad stuff that was done, for suspension geometry and from the discussions it is definately aimed at handling more power better. There is a clear target to produce the best handling car within the chassis envelope dictated by the body (its still got to fit the chin/griff body
...
Also the camber recovery (as the wheels go up, how much does the top of the wheel go inward (due to the unequalness of the double wishbone lengths) - to counteract the lean of the vehicle)....is improved on t-cars compared to Griff/Chim.
This lead to being able to move chassis rails wider apart (better for stiffness and giving more space for exhausts too)...
i don't want to quote values as i may be incorrect, but I'm sure Ian said some tubes went from 1.6mm to 2.5 mm tube, whilst others remained the same depending on what the cad stress analysis said
theres loads of small (and not so small ) triangulation added, they're pretty evident in the pics on the site
he also mentioned the grade of tube was higher, and that some of the box sections were made using different radii to add strength in twist.
theres loads of small (and not so small ) triangulation added, they're pretty evident in the pics on the site
he also mentioned the grade of tube was higher, and that some of the box sections were made using different radii to add strength in twist.
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