Demon Racing, Official Gauteng affiliates for dB Drag Racing & Bass Race. We are a car club for the true enthusiast, power and speed junkies, sound freaks, simple Simons and plain Janes. Everybody is welcome. No matter what you drive, how fast or slow, loud or quiet it may be. You will always be a part of the family & team.
Started this discussion. Last reply by CaddySA Feb 6, 2010. 5 Replies 0 Likes
Koos werk op die platteland en stop een middag by ‘n boom om te piepie. Terwyl hy met meneer in die hand staan steek ‘n by hom op sy meneer se punt.Hy jaag soos ‘n besetene na die naaste plaas en vra…Continue
Started this discussion. Last reply by Showoff Jan 26, 2010. 2 Replies 0 Likes
Die oudtjie kom by sy ma, en kyk vas teen haar wenkbroue:‘Ma, watter woord is beter om te gebruik…die Vader se naam of die f-woord?’‘Geeneen van die twee nie’ sê Ma. ‘Albei is sonde’‘Ma, maar as ek…Continue
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Added by 2FST4U 3 Comments 2 Likes
Posted on April 30, 2012 at 18:38 0 Comments 1 Like
Hi All
Due to a small technical hitch results will be posted on the Termpro site by Friday. In the meantime check back at around 10:00 this evening for the results obtained.
Stay Safe…
ContinuePosted on April 29, 2012 at 11:00 1 Comment 1 Like
What you signed for on the entry form - Extract from P1.
We will Endeavour at all times to stay impartial and judge each vehicle in accordance with the dB Drag ©® & Bass Race ©® Rules. Whilst our classification of the sound installs are based on our interpretation of the rules, we do not imply or pretend that we are perfect and even the Judges can make mistakes. We do not guarantee or presume that we are experts who can justify a…
ContinuePosted on November 20, 2011 at 10:08 1 Comment 2 Likes
VW Instrument Panels - a bodger's guide
Back in the late 1970s, Volkswagen was an early pioneer in the use of electronics in vehicle instrumentation. The systems used were fairly primitive - just a handful of transistors and a few diodes - but meant that instrument wiring could be greatly simplified, with additional functions…
ContinuePosted on October 31, 2011 at 19:39 1 Comment 1 Like
Port Length
The port length required to tune a volume of air to a specific frequency can be calculated by using the following equation:
Lv = (23562.5*Dv^2*Np/(Fb^2*Vb))-(k*Dv)
where,
Dv = port diameter (cm)
Fb = tuning frequency (Hz)
Vb = net volume (litres)
Lv = length of each port (cm)
Np = number of ports
k = end…
Posted on October 31, 2011 at 19:37 0 Comments 0 Likes
To calculate the power response of a ported enclosure system, you will need to know the following: Vas = equivalent compliance of driver (litres)
Qes = electrical Q of driver at resonance
Fs = resonance frequency of driver (Hz)
PEmax = maximum input power for driver
Fb = resonance frequency of the system
F3 = frequency at which response is down by -3dB
Dia = effective driver diameter driver (cm)
Xmax = peak linear displacement…
DB-BOY said…
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