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Location:
Hobart, Tas
Registered:
May 2002
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 Boost gauges... which is better, mechanical or electronic?
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Sat, 05 February 2005 09:48
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I need to start shopping for one for my GA65 project - which is prefferable?
(posted in Tech rather than General Dicsussion, as this is a tech question)
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I supported Toymods
Location:
Perth
Registered:
May 2002
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: Boost gauges... which is better, mechanical or electronic?
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Sat, 05 February 2005 10:44
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I bought a Blitz Dual Turbo Timer and it has a boost gauge built in with overboost warning and peak hold etc.
They only cost ~$200-250 at Autobarn which I reckon is a better investment than just a straight boost gauge.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Boost gauges... which is better, mechanical or electronic?
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Sat, 05 February 2005 10:45
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sort of on topic - is there any problem with teeing your boost gauge into the vacuum line about 5cm from the ecu? slower responsiveness for ecu?
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: Boost gauges... which is better, mechanical or electronic?
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Sat, 05 February 2005 10:54
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Shouldn't be a problem.
Mines tee'd onto the MAP sensor and hasn't caused any drama's.
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Location:
Hobart, Tas
Registered:
May 2002
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Re: Boost gauges... which is better, mechanical or electronic?
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Sun, 06 February 2005 00:51
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| Toobs wrote on Sat, 05 February 2005 21:44 |
I bought a Blitz Dual Turbo Timer and it has a boost gauge built in with overboost warning and peak hold etc.
They only cost ~$200-250 at Autobarn which I reckon is a better investment than just a straight boost gauge.
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Do you find a digital numeric readout not as useful as an analog needle one, or is it fine?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Boost gauges... which is better, mechanical or electronic?
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Sun, 06 February 2005 01:00
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To be honest, to me, the digital readout is probably more effective so long as it updates fast.
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Location:
brisbane
Registered:
October 2004
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Re: Boost gauges... which is better, mechanical or electronic?
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Sun, 06 February 2005 10:13
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isnt it better to have electrical for safety? well
i dunno how much a leaky mechan boost gauge would
affect the car, prob less boost and mess the readings...
with boost i think its a full sweep gauge, on a lot
of other common elec gauges they arent full sweep due to the
sender range i think so it depends if you want the full
range or a select range on the others.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Boost gauges... which is better, mechanical or electronic?
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Sun, 06 February 2005 10:58
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| draven wrote on Sat, 05 February 2005 21:45 |
sort of on topic - is there any problem with teeing your boost gauge into the vacuum line about 5cm from the ecu? slower responsiveness for ecu?
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When Bruce Bowling was testing the Megasquirt at the beginning of the project, he had 30 feet (9m) of vacuum tubing to see if it affected the response of the ECU. he found that there was little difference in having 2 feet or 30 feet, although the longer it was, the more the pulses pulses were filtered out.
i put a carby fuel filter in series before the ECU, and in my testing, there is less than 0.05 seconds difference (if there is any), as that was the lowest time difference i could datalog.
since the fuel filter is a much much larger volume, it should be no problem 
Cya, Stewart
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