Engine upgrade - part #2 - disassemble
Engine out Bell-housing off Clutch off Flywheel off Mounted engine on stand using bell-housing bolt holes (M10x75 bolts. Use washers to protect the engine.) Intake plenum off Removed loom Fuel rail and…
31 ENTRIES / 2011
Caterham CSR Trackday toy: 2011
Trackdays, workshop projects and updates from 2011.
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Engine upgrade - part #1 - intro
So I want more power - and have decided to copy Cosworth's 280 crate engine. 13:1 compression ratio Forged pistons and rods New cams Uprated valve springs Ported head Throttle bodies Uprated fuel injectors and…
CSR Assembly Guide and other manuals
CSR Assembly Guide and other manuals can be found here:
Trackday slicks part #3 - Fitting 13" rims
The rear brakes on road CSR's are to big to fit inside 13" rims, which makes the availability of tyres a bit limited. Most suitable slicks are 13" and if your're looking for second hand, 15" slicks are like…
Supercharged!
I got myself a new book! Nothing good can come out of this... Some inspiration: Rotrex superchargers Supercharger kit from Caterham Austria Some Duratec calculations Supercharged
Mantorp, last time this year
A sunny but very cold day started with below zero degrees Celsius. The cold asphalt made the car both oversteering and understeering in different corners and all I could do was pretty much just play around.…
MOT test
No problems this year! Last time the poor guy was too big to fit into the
Adjusting Camber
Adjusting rear Camber Rear camber is really easy to adjust, and can be done in just a few minutes. Remove the wheel. Loosen the four small bolts (unlike the picture, normally two of them are hex bolts). Add or…
Trackday slicks part #2
I emailed Avon asking for recommendations regarding slicks on the CSR. Hi Niclas, As you probably know, the racing CSR run 9”X13” front wheels and 10.5”X13” rear, we developed some radial slicks specifically…
Gotland Ring
A nice autumn trip to Gotland together with my family. Two full days on the track with nice sunny weather. Gotland Ring is located on an island on the south eastern part of Sweden, and is one of the newest and…
Limited rear droop travel
I noticed my rear droop travel was way too limited and suspected that could explain some of the rear inner wheel spin I have been troubled with. Photograph unavailable in the original archive My car is fitted…
Handbrake cable warning!
My handbrake cable was routed so it was in contact with the fuel tank. As a result, it the cable has dug itself into the aluminium and created quite a big scar in the tank! So everybody out and check your…
Cracked exhaust manifold
Last time on Mantorp one of the exhaust primaries cracked completely. I left the car to a Ferrari race team who tried to weld it together in situ, but it was too tight so the result was not very good. No blame…
The engine is out
Engine out due to a cracked exhaust primary. Easier the second time - I followed my step-by-step list from last time , and took it out only with help from my 5-year old
Trackday at Mantorp - test of slicks
A very hot day at Mantorp Park again - with slicks for my first time! The lap times where not that much better, only about a second. A bit disappointed actually. But probably it is my driving to blame, I'm…
Trackday slicks part #1
Photograph unavailable in the original archive I've bought a set of 15" Avon crossply slicks! For a while I've been tempted to try slicks. 15" slicks are expensive and hard to find second hand. Fitting 13"…
Wheel alignment check
My current wheel alignment, measured in my garage. Cross-ply setup. Front Rear Toe 0.5° out 0.7° in Camber -1.25° -0.25° ARB Hard setting - Tyre 195/45-15 215/40-15 Pressure 19 psi 19 psi Rims 6.5"-15 9"-15…
New front discs and pads
Photograph unavailable in the original archive Pagid RS14 Apparently I didn't change the front pads in time, so one of the discs had some ugly grooves a bit too deep for my liking. They're probably fine but I…
Another lonely day at Mantorp
A nice and sunny day at Mantorp Park! The day started out well being the faster of the two cars on the track. Photograph unavailable in the original archive ...then this guy came along with his brand new…
Mantorp
Photograph unavailable in the original archive It was pretty lonely this day, three cars total This years first track day was on Mantorp Park. I had the opportunity to talk with a professional race team…
New battery
Photograph unavailable in the original archive My previous battery was a cheap Biltema gel battery. It worked ok in the beginning, even if I had a few anoying moments when there wasn't enough power to start…
Spring!
Photograph unavailable in the original archive This years first drive! Still very chilly outside and the tyres never got temperature, but what a great feeling anyway! But why is that every spring you're about…
Front bump steer
There is plenty of information about bump steer to be found on the internet. Basically bump steer is when the toe alignment changes during bump, ie when the suspension compress. Here is an article explaining…
Cross-ply rear camber
Crossply tyres such as Avon ACB10 don't need as much negative camber as radial tyres, CR500, 888 etc. On the CSR you adjust the rear camber by using spacers. But what happens if your bolts through the spacers…
Brake fluid change
Replaced the brake fluid. Used the same fluid as last time - ATE Blue racing. Because I accidentally got some air into the system I had to remove the rear callipers and shake them around to get all air out.…
Cracked clutch disc - engine out!
I always had troubles downshifting at high RPM. Always when trying to engage second gear when going into an hairpin I had to struggle until the revs dropped. My upshifts weren't that fast either, but within…
Differential support
There are reports on broken differential mounts on the CSRs, so I have mounted support brackets to avoid a future disaster. Some say they're not necessary if you have steel spacers on the diff mount, but all…
Mantorp trackday movie
Embedded media (external) Movie clip from Mantorp this summer. Personal best 1:27.94! Avon ACB10 tyres Filmed with a GoPro
About using nitrogen in tyres
There are different opinions about using Nitrogen in tyres instead of ordinary air. I did some research and here are my conclusions regarding nitrogen and track driving: Photograph unavailable in the original…
Silencer mounting bracket
When I bought my Caterham it was equiped with a big heavy rear silencer. Last winter I decided to remove it and modify the side silencer. After a couple of bad attempts with cracked welds and brackets I once…
Spark plugs
Finally I changed the spark plugs. About time I'd say! Photograph unavailable in the original archive NGK BR7EFS Gap 0,64mm 12