automotive

SF Eager 340 tyres

Who stocks the oldschool SF Eager 340/330 tyres these days? It's hard to find good 14 inch rubber, i'de love to step up to 15 inch but my gear ratio and cam just dont mix for that kind of action (need a 5 speed).

I love the white writing on the side of the SF Eager 340 Bridgestone tyres, tho they are an old design so i'm not sure how well an old patter like the SF Eager tyre's cope in the wet..

Linux wideband (wbo2) sensor interface program

Heres my Linux wideband monitor program for the Australian made WBo2 wideband sensor driver, specifically tested with the 2J1 unit. this program requires the wxPython interface modules..
# apt-get install python-wxgtk2.6
The program only prints out the wideband readings in a fairly primitive but usefull fasion, better than nothing!

More on EFI

I've started a new website to act as a hub for my home brew efi project

Check it out..

My EFI Atmel based website

theres some SVN code you can get, and i'll be posting various information as i learn it

Some tips on replacing your stock suspension with adjustable koni shock absorbers


It was time to update the chrysler's (cm valiant glx) suspension setup it was starting to boat around (well more than usual) and just wasnt reacting to bumps in the road properly, you'de just abuot feel every bump twice.

solution - replace every shock absorber with an adjustible koni suspension unit and replace the swaybar link bushes.

Thoughts on using an Atmel chip to replace vacuum advance units on non-EFI engines

An idea that has been brewing - Use an atmel/avr (atmega8/atmega16/atmega32 etc) chip to replace the vacuum advance on pre-EFI cars, this has the advantage of allowing you to specify prefered degrees of advance based on manifold pressure (via a MAP sensor) from your laptop, other things could be worked into it such as engine/air temp etc. (air temp effects the a/f ratio)
Essentially - ensuring you have the correct amount of ignition advance ensures you burn all the fuel charge in the cylinder - when this happens you go faster, get more milage etc, if you add too much advance then the fuel is burnt up before it reaches TDC and you get "pinging" or "pinking"

Heat shrinking panels using a flapper disk on the grinder, removing dents etc

Probably not quite a panel beating how to, but this article might give you some idea into panel beating and 'alternative' methods, recently i've moved back to using a oxy torch to heat shrink becuase i dont like the friction the shrinking disc creates - i think it removes too much steel..

STK-500 general nerding report

After looking at the prices some companies like motec charge for their entry level EFI management systems i've decided to start learning to tools of the trade. MCU's.
A mate of mine managed to hook me up with an Atmel STK500, which is nice MCU development board for much of Atmel's Atmega* range.
So so far i've had to learn
  • Driving IO lines
  • Interrupt driven programming (think of hardware operations triggering your function calls)
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