Roadsport vs Superlight : (mechanical) differences ?

[Slider7]

Roadsport vs Superlight ?

 

Is it correct that a Superlight comes with exactly the same engine as a Roadsport in Supersport trim, but just has a different exhaust system ? Need to know if a Superlight with the standard cat-exhaust system will produce the same emissions as a ‘Supersport’ Roadsport ? Any other mechanical differences ???

 

TIA

 

 

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away” Antoine de Saint Exupery

[Irrelevant]

Superlite has a super light chassis with various differences. Now I'm not sure what these differences actually are, but they do commonly include:

 

1. thinner diameter tubing in places

2. different upper column

3. no inertia belt mounts or compartments.

[Frying Pan]

Adam

 

Are you sure about that I thought the chassis were absolutely identical, apart from the Superlight not having a spare wheel carrier as standard.

 

Guy

 

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See some pictures of the build here. 13000 miles completed!

[Irrelevant]

7heavensoon: I'm not sure, no . . . just what I understand based upon chatting with others. As usual, it may be utter testicles though

 

Oh yeh - the spare wheel carrier, that's another one .

[Shaun_E]

A standard Superlight came with a 1.6 Supersport engine which was, as you say, an option on the Roadsport. The 4-1 exhaust was an option but I have seen several Superlights with the standard exhaust including catalyst. In theory the emissions in this configuration would be the same as those for a Roadsport with Supersport engine.

Other mechanical differences the SL has over a standard Roadsport:

LSD

6 speed gearbox

Wide track front suspension

adjustable spring platforms

AP Racing 4 pot front brake calipers with ventilated discs

19mm front ARB and adjustable rear ARB

 

Yellow SL #32 - member of Drowned Rat Racing

[Adrian Williams]

Engines are identical as are 'standard' exhausts, you could change exhausts on either to 4:1 or 4:2:1.

 

To answer your question a superlight with the std cat exhaust will have the same emissions as a similarly equiped roadsport.

 

Adrian

[BBL]

To answer your question a superlight with the std cat exhaust will have the same emissions as a similarly equiped roadsport.

...only lighter

 

- Sean

[Slider7]

Thanks for the info 😶‍🌫️ ... seems like it should be possible to get a Superlight homologated over here (Belgium)

 

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away” Antoine de Saint Exupery

[Roadsport06]

I did think the superlight had a lighter guage steel used ?

 

BRG and Yellow nose VU06 XZX

 

[Peter Carmichael]

Lighter gauge steel is a pipe dream (geddit?)

 

Some cars (like mine) have thinner gauge aluminium on the floor because with race seats the floor is no longer used to mount the seats.

[david nelson]

Does the superlight come with a lightened fly wheel?

 

David

 

SL #146

 

[Peter Carmichael]

Yes. Lightened flywheel was standard but shouldn't affect emissions.

[Casbar]

The guage of steel is exactly the same for the Roadsport and Superlight chassis.

 

So if you spec'd a Roadsport without wheel carrier, it would be the same chassis

[david nelson]

My SL had the bit removed for the stack dash. not sure if the roadsport has this?

 

David

[Horizontal]

Hi all,

From memory the superlight and superlight R both had standard chassis, but with carbon and other performance items as standard, LSD/6 speed/light flywheel/big brakes/Avon tyres. Engines where options across the range. The only chassis mods were to the R500 which had lighter front cross members initially, but as many were spec'd with windscreen it negated the weight saving so I think they reverted to standard chassis if you spec'd a windscreen.

 

All as I say from the old grey cells, which are dying at a great rate these days!!

 

Cheers

 

Missing Sylvia ☹️

[FTH]

Do the bigger brakes weigh more? 😬

[CanAm]

No, theyre ventilated 😬

 

Alan

The existence of chance is everything and nothing whilst the greatest achievement is the living of life.

[Gridgway]

So, I don't feel bad about a post that completely misses the point, shows complete ignorance and absolutely fails to answer the OP's questions.

 

As that is what you lot have all done. Pathetic.

 

Graham

[Frying Pan]

Hope you slept well

 

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See some pictures of the build here. 13000 miles completed!

[Gridgway]

Yup, and I hadn't even had a drink! Might have missed off the smiley thing though!

Graham

[CanAm]

Graham,

Apart from the flippant comments by FTH and myself, I think the OP's questions were pretty much answered seriously and correctly.

 

And if it helps Slider with homologation, Caterham VIN numbers make no differentation between a Roadsport and Supersport (Superlight) 1600cc engine, ie the code for both engines is R6.

 

Alan

_{The existence of chance is everything and nothing whilst the greatest achievement is the living of life.}

[Peter Carmichael]

Graham's only grumpy because he was hoping Slider would be looking for a 1.6SS just like the tidy one he has for sale. 😬 Unfortunately it isn't catalyst-equipped as it is a pre-SVA so won't be of any interest to Slider.

[Rob Walker]

The late Arch S400 & 500 chassis are slightly different as they have no inertia real seat belt mounts/ enclosures under the rear wheel arches and no spare wheel carrier. Also no bracket for the emissions canister.

[R400 Velocity R]

I have a 2002 Brochure with specs if any one would like me to email them just let me know your email address

[Slider7]

Think I now know all I need to know ... or better 'more then I need to know' ...

 

BTW, I'm going to look at a 1.8 Superlight (now Saturday) that seems to be perfect (on paper) for me ... so, fingers crossed 😬

 

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away” Antoine de Saint Exupery