Race Technology DL1 + Dash4Pro
Early Christmas this year when I got myself a Race Technology DL1 Club logger and Dash4Pro dash to go with it. I've been using a Racelogic Performance box for many years but always longing for a system like…
25 ENTRIES / 2013
Caterham CSR Trackday toy: 2013
Trackdays, workshop projects and updates from 2013.
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Fuel filter
MANN WK612/2 or MAHLE KL158. Available in your local car parts store. Must be one of the parts on this car that is hardest to remove, and even harder to get back due to the tight location. Take care not to get…
Uprated fuel pump
In my search for a more robust fuel system the time has come to the fuel pump. According to Cosworth a 280hk Duratec engine need 1.4L/min regulated to 4.3 bar. That equals 84 L/Hr. Inside the white container…
Tierp Arena
Great day! Great fun racing with some other sevens. Probably the last outing for the season. My car is both wonderful and terrifying at the same time! Especially in the morning on a wet track with cold…
Finally some driving!!
A "test drive a Radical SR3" event at Mantorp. I was also invited but drove my own car. The engine runs great! The car handles great! Even the weather was great! My driving - not so great, but who cares? Well…
Brise starter
This is the second time my starter solenoid has broken. It is a mechanical failure where the plastic actuator arm inside the coil has broken off. The starter motor has also been very sluggish lately and not…
Thermal camera
Embedded media (external) During the last F1 race they've equiped some of the cars with thermal cameras. How cool is that?? Notice how fast the tires cool on the straights, and how much heat is generated from…
Head job
The previous engine damage was not fixed. The car was lacking power, and another compression test still gave low figures on the middle two cylinders. Since the bottom end is fixed for sure, that leaves the…
Roll cage padding article
Photograph unavailable in the original archive Not SFI approved. If you are confused what padding to use on your roll cage, don't be any longer. I found this excellent article that makes it an easy choice.…
Engine rebuilt
I spent the first part of my summer vacation to rebuild the damaged engine. New block and new pistons, and a new built loom. Started without troubles, but I forgot to turn on the video recorder! A couple of…
New engine block
New Cosworth pistons. I reuse the rods as they're not damaged. Finally, here it is! I couldn't find a replacement Duratec 2.3 block in Europe so I had to order one from California. GPWerks had both new and…
New engine loom
Last time I rebuilt the engine I bought a generic Duratec loom from SBDev . Very nice quality and well made loom. But as it only had wiring for controlling the engine and not for fans, starter relays, dash…
Cranks and rpm limit
A Duratec 2.3 engine can safely be revved up to 7200 rpm with the standard valve springs. With uprated springs it the limiting factor is the crank and according to Cosworth it can be revved up to 7700 rpm with…
Engine damage
Bad start this year. The fuel surge on last trackday caused more damage than I initially thought. Damaged spark plugs. These are from cylinder #2, #3 and #4 A compression gave the figures 14.5, 12.5, 12.0,…
Mantorp first time 2013
This years first trackday was a warm day with blue skies on Mantorp and a huge mix of different types of cars. Things didn't go that well. It started with me being a bit late. Then there was a Porsche that…
Cornerweight, for real
Last attempt to weight my car using bathroom scales failed miserably , so I took a trip to Speedlab Racing and got help so set up the corner balance properly using their professional equipment. Without driver…
Does wider tyres equals more grip?
On a thread on Pistonheads someone claimed that wider tyres doesn't mean more grip. Theoretically, the tyre size does not change grip as Amontons 2nd law states that friction force remains the same. The tyre…
Nose cone aero whiskers
Mega downforce nose cone whiskers for less understeer in fast corners. These beasts will add at least 50g of downforce even at low speeds. I glued them on with melt glue until I was satisfied with the…
Supercharged CSR for sale
There is a supercharged CSR for sale at PistonHeads with some interesting technical solutions. Photograph unavailable in the original archive Photograph unavailable in the original archive As one can see the…
Exhaust manifold leak
Last summer I bought new exhaust manifold because the old EU4 manifold was warped and had a crack in the collector. The new ones has been leaking as well . I don't know why, if it is a quality issue from the…
DIY Cornerweight
I've been looking for corner weight scales for rent at a reasonable price for some time now without success. At the local Biltema store 130 kg analogue bathroom scales was only €5 each, so I bought a complete…
Full rollcage
A couple of YouTube clips ( here and here ) made start thinking about getting a full roll-cage for my car. When a found one second hand in UK I went for it. DHL shipped it to me and even if the freight was not…
Oil catch tank
After my engine rebuild I changed the oil system to an open system and needed a catch tank. Until now I've been using a temporary solution which in every way was not very good. FIA regulations stipulates that…
Front damper spherical bearing play
There was a play in the joint between the rocker arm and damper in the front suspension, noticeable when I jack the car up, removed the wheel and lift the suspension at the hub. I decided to change the…
Replacing front bushings
I've noticed that my front wings move quite a lot when I brake, and that have become worse over time. I also have a brake judder on the front. My suspicion was the rubber bushings on the front suspension.…