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 hypo-vw
A.k.a.: Wayne Penrose
Veteran Volks Folk
Australias 1st 10sec street beetle (Jan 2007) 10.49secs@132mph street tyres
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 posted on September 29th, 2010 at 02:40 AM |
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WPVW supercharged drag bug dyno for Warwick
Well today we managed to get Bens' supercharged drag bug to the dyno for testing and its first tune set-up. We have left the dyno with mixed emotions
as the engine sounds strong and healthy , but the supercharger is supplying only 5psi boost .
we really dont know what the issue is as yet , however I have my suspicions that the old Wade supercharger that we are using is buggered. There are
quite a few scratches and marks in both the impellors and the housing . This has been caused by debris entering the supercharger when used on the
speedway many years ago .
At least Ben will have a strong little engine ( 2442cc 88x94 ) for Warwick this year and should get a few good runs in the 8's .
The dyno session ended with 195bhp @ the wheels with 1072lbs of tractive effort on E85 fuel on 5psi boost .
Tonight has been another working bee on my turbo oval and tomorrow I will dyno the new engine combo .
Team 
FASTEST ET @ WARWICK 2010 & 2011
FASTEST SPEED @ WARWICK 2011
FASTEST ET & SPEED WSID 2012
PB - 6.33@113.07(1/8) & 9.88@135(1/4)
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Stanley
Compulsive Aussie Vee Dubber
I guess the reward is in the doing of it
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| posted on September 29th, 2010 at 06:59 AM |
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bummer Wayne
For it to only develop 5psi I would imagine the marks in the impellor and housing would have to be fairly substantial.
Can you up the speed of the blower to maybe pick up some more?
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hypo-vw
A.k.a.: Wayne Penrose
Veteran Volks Folk
Australias 1st 10sec street beetle (Jan 2007) 10.49secs@132mph street tyres
Posts: 2151
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Registered: May 9th, 2004
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Location: unanderra
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| posted on September 29th, 2010 at 09:51 AM |
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| Quote: | Originally
posted by Stanley
bummer Wayne
For it to only develop 5psi I would imagine the marks in the impellor and housing would have to be fairly substantial.
Can you up the speed of the blower to maybe pick up some more?
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I will look into the boost problems after Warwick . Too busy now preparing my turbo oval , and Ben will still have heaps of fun learning to drive his
bug the way it is . Will keep you posted on developments after Warwick
Team
FASTEST ET @ WARWICK 2010 & 2011
FASTEST SPEED @ WARWICK 2011
FASTEST ET & SPEED WSID 2012
PB - 6.33@113.07(1/8) & 9.88@135(1/4)
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SuperOwen
Fahrvergnugen
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| posted on September 29th, 2010 at 12:47 PM |
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Out of curiosity what sort of airflow is the wade blower rated at and what drive ratio are you running? 2442cc might be a bit big for the blower?
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hellbugged
A.k.a.: Daimo Pell
23 Windows of Awesome
48's and straight cuts
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| posted on October 1st, 2010 at 11:13 PM |
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http://www.youtube.com/watch?v=hsCEkGE2oqM
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