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What year is your car? And the config of the front chassis tubes  bigX?

I found this picture which shows the BDR model with the oil supply line running under the car. Are there any BDR owners on here?http://www.tamiya.com/english/products/10204/d7.jpg

Good thread as a trigger for me to replace my speedo seal while the box (4 speed) is out, replaced the others, didn’t think of the speedo, 

Thanks Guys luckily 98 is readily available from major Fuel companies. and Elie thanks for the insight about the valve seats, something to keep in mind. I will grab some valve saver.

A friend is collecting a 88SS next week and I was wondering what is the correct Octane rating, The car is an ex Japanese factory built car with 1.7 litre 10.5:1 comp. I figure at that comp level 98 is the correct rating only other option is 95 

I thought I had seen this and it was in Low flying.

https://www.lotus7.club/sites/default/files/images/users/4437/Rollover%20Bar%20Article%20-%20Lf%20Jan%202018.pdf

Added to the cost, as Sierra’s we’re not sold in Australia, so a second box Not overhauled will set you back an average of 550UKP plus...

Yes However is he in Australia?

Thank you all for the links and the good suggestions, and after reading all the info, I'll leave the gearbox that's in the car as it is for now.

Physically the T9 wont fit, unless I remove the complete saddle from the existing mount. The T9 mount needs to effectively be at the floor skin and hence the redesign by Caterham of the chassis in that area.

Good suggestion, however I will clarify the question to a standard Caterham bar, the reason is key issue is that Caterham no longer have a listing for the live axle cars, and redline website is only really an inquiry only site.

Hi all, I would like some assistance with the dimensions of the current S3 chassis roll bar. I could take a guess from the pictures however, to have some details of a factory one will assist.

if there is a link that would be great, if not the following will help.

I plan to have one made as the freight to the colonies for a factory one is prohibitive.

i only plan to use one for a road car,

What Diameter tube is the current road bar

what height are they from there mount base.

Lastly the angle from the vertical.

many thanks in advance.

Hi all, I appreciate this question has probably been asked many times however  bear with me , I was considering fitting a T9 box to get a fifth gear. However the chassis is set for an Escort box and the bulk of the cast iron case and the 5th gear extension housing interferes with the chassis mounts.

Has any one successfully done this or should I just s tick with the 4 speed.

many thanks in advance.

When some types of fuel dry out it leaves a residue that looks like yellow varnish.

How long since the carbies have had an overhaul?

Carby cleaner will clean the jets but you need to remove them just to do it, but that is just the jets, to clean the internal galleries. they need to come to pieces.

The old mechanical location I’ve seen on FF engines interesting idea, the oil supply under the bell housing I assume is at the joint of the gearbox.

Hi Guys the plumbing schematic isn't the concern its just the physical location and as Oliver suggested the steering rack mounting bracket is worth investigating, The other suggestion i have considered is a cover plate for the fuel pump that can mount the filter ala FF
 

Great start what oil filter arrangement do you have?
 

I have just finished having a Twin Cam engine rebuilt for my 85 Caterham.

The engine has been dry sumped with Titan pump remote filter type and Alloy sump.

Tank is going where the battery used to reside. Id like to see how others with similar engined cars with dry sumps are plumbed and where did you put the filter, pictures would be great please.

Link please?

This may sound odd but I been searching for a set of 5 14x6 minilite style wheels for 85 ital diff 7.

the wheels on the car are ally steel wheels and the steel is rusty. It’s cheaper to replace than re chrome.

so what I am after is 14x6 et 16 or 19. And tube mount as the car has the original 3/8” 1 inch long studs.

any suggestions?

Thanks for the insight, good info indeed, as I need the same and blades, for my 85, 7