Caterham 7 Track Review With Data | Grassroots Motorsports

[@zeitgeist888]

My Exocet (Race welded steel floors) weighed 1563 and was similar to the full cage Caterham you tested so a couple hundred pounds heavier for a Miata based kit car. I did keep the ABS so there were ways to go lighter.

[@user-gc1zn5mn4p]

This reminds me of the racing karts I've raced. Control being equal, the higher power to weight ratio will always win, regardless of the cost of the vehicle.

[@joshuajusticeracing]

Not necessarily. Once you get into heavier stuff, your braking distances start increasing, so even if your power to weight is the same, your braking to weight isn't.

[@user-gc1zn5mn4p]

@@joshuajusticeracingThat's true, though I was in a general sense including braking within control, both in turns & on straights.

[@yurishnirman3847]

Think this video missed the origin of Caterham 7, as its roots are strongly based in a kit car. One of the original kit cars.

[@janetyer7147]

Seems like a Caterham 7 might be a good candidate for a GM LFX V6 salvaged from a Gen5 Camaro and a Tremec TR-3160 manual 6-speed salvaged from a Gen6. Maybe change to a dry sump oiling system with tank located somewhere aft of the drive axle. A small diameter low inertia dual disc clutch and steel safety bell housing might be worthwhile, if available.

[@BumpHeadRacing]

That sounds like a modern version of the Brunton Stalker (V6 Camaro/S10 drivetrain in a Seven chassis)

[@ajbertelson9871]

still remember when you guys built the CMC 7 years ago.

[@BumpHeadRacing]

This excites me greatly, as I'm currently waiting for an MK Indy RX-5 (miata drivetrain Seven kit) to show up from their US distributor, and it will primarily be a track toy for me.

[@silverpairaducks]

How much is it without shipping. Considering and exocet

[@BumpHeadRacing]

@@silverpairaducks my kit, with some options, including having it crated up, is right at $20K before shipping or donor parts

[@silverpairaducks]

@BumpHeadRacing are they in Indianapolis. Because I'm in la and 1 of my miatas(donor) is in Indiana...could simplify life

[@MuadDib1402]

Yes.

[@shadfallfan]

I wish there was a lotus/caterham 7 kit for the miata nc.

[@JNatella]

There are MX5 kits based on the NA/NB. I don't know if westfield is still building them but MK Indy makes them, with the honda K20 motor as an option. kzbin.info/door/CfTIOxA05jmHi0FAixB2Pg

[@stevesamuel263]

You could prolly jury rig an exocet to fit an NC

[@shadfallfan]

@@stevesamuel263 No. You have to use suspension from the NA/NB and the NC doesn't share any parts at all. At that point you'd be better off just starting from scratch. But that takes so much time. A single donor kit where all the welding is done and all you gotta do is swap parts over would be a hit especially for those who do track days and want a cheap fun weekend toy. Is the same spirit as the 818 but with a better base platform.

[@BumpHeadRacing]

There's something close, MK Sportscars is starting to build a Seven kit using a MZR/Duratec engine and an NC gearbox, I forget which rear end they're using in it though, and depending on rear end it either uses NA/NB uprights (if a NA/NB diff) or custom uprights (if a Ford Sierra/Merkur diff)

[@shadfallfan]

@@BumpHeadRacing Do you know where I could find that? I cant find anything

[@aria8928]

I mean, they were available as full kits for many years tho. so...

[@xozindustries7451]

Is that an IRS car?

[@Grassrootsmotorsports]

DeDion rear suspension. Basically a live axle but it only connects the two wheels. the diff is chassis mounted.

[@3ducs]

@@Grassrootsmotorsports This setup worked well in the Alfa Romeo Alfetta/GTV6 cars. I had the Alfetta, low unsprung weight and excellent wheel location made for accurate handling.

[@Grassrootsmotorsports]

@@3ducs Yeah it's not a bad solution for light cars that don't roll a lot. Biggest drawback is kind of a weird dynamic camber curve, but on a small light car that's not as big of a drawback.

[@rustygolfer3475]

I would think an Atom would be better. Mid engine same concept.

[@joelambert7128]

Perhaps the Atom is a superior car in isolation, but the Caterham and other Lotus 7 clones are cheaper by half, and come with a massive spec racing scene, particularly in the UK.