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Location:
Lost in the K hole
Registered:
May 2002
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Re: How does the 7m-gte boost retard ??
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Thu, 28 November 2002 13:25
 
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| SUPRAGTE wrote on Thu, 28 November 2002 23:19 |
AFM's are the most accurate within economical reasons.
How else would you measure how much air is going into an engine??? It's got nothing to do with the BHG issues.
>>>>
When the guys run the GE high comp pistons on their GTE's??????
That sorta defeats the purpose. The lower the compression the better, for turbo engines anyway.
>>>>>
Gianttomato- they wouldn't have the same amount of air off boost as each other as they have different compression ratios therefore different combustion chamber sizes therefore different amounts of fuel to go with different amounts of air in those combustion chambers
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paul, whilst the afm itself is verygood at determining airflow, im just saying that by the ecu NOT monitoring intake pressure, it is rather simplistic in its fuel and timing calulations. and whilst its probably a-ok, it is forseable that such a sinmplistic stock fuel managment system could be partially responsible for h/g issues.
as far as the concept of a hi static comp turbo engine goes... yeah ok, you might not be ABLE to run heaps of boost, but equally, you dont NEED to run heaps of boost. the high static compression results in huge dynamic compression under boost (even low levels) and if you get the fuel and timing right (and you dont need to retard it to hell always - consider combustion chamber design and intake/fuel swirl characteristics) they make an awesome performnace engine. consider porsche, 9.4:1 static compression turbo 
and yes, people have run ge pistons in a turbo/supercharged applications...
and just on your last point... CR has nothing to do with airflow. the swept volume is still the same between the two engines...ie they suck in the exact same amount of air, the CR just determines how compressed that volume air becomes at TDC
cheers
ed
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| | Subject | Poster | Date |
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How does the 7m-gte boost retard ??
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ed_ma61 | Wed, 27 November 2002 03:51 |
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Re: How does the 7m-gte boost retard ??
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SUPRAGTE | Wed, 27 November 2002 04:22 |
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Re: How does the 7m-gte boost retard ??
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inferno | Wed, 27 November 2002 13:36 |
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Re: How does the 7m-gte boost retard ??
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Norbie | Wed, 27 November 2002 04:33 |
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Re: How does the 7m-gte boost retard ??
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scottee78 | Wed, 27 November 2002 04:44 |
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Re: How does the 7m-gte boost retard ??
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Norbie | Wed, 27 November 2002 05:27 |
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Re: How does the 7m-gte boost retard ??
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scottee78 | Wed, 27 November 2002 05:40 |
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Re: How does the 7m-gte boost retard ??
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ed_ma61 | Wed, 27 November 2002 08:24 |
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Re: How does the 7m-gte boost retard ??
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SUPRAGTE | Wed, 27 November 2002 13:15 |
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Re: How does the 7m-gte boost retard ??
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ed_ma61 | Wed, 27 November 2002 13:41 |
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Re: How does the 7m-gte boost retard ??
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gianttomato | Wed, 27 November 2002 20:52 |
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Re: How does the 7m-gte boost retard ??
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humble | Wed, 27 November 2002 22:20 |
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Re: How does the 7m-gte boost retard ??
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Norbie | Wed, 27 November 2002 22:42 |
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Re: How does the 7m-gte boost retard ??
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gianttomato | Wed, 27 November 2002 23:05 |
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Re: How does the 7m-gte boost retard ??
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SUPRAGTE | Thu, 28 November 2002 12:19 |
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Re: How does the 7m-gte boost retard ??
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ed_ma61 | Thu, 28 November 2002 13:25 |
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Re: How does the 7m-gte boost retard ??
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SUPRAGTE | Fri, 29 November 2002 06:38 |
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Re: How does the 7m-gte boost retard ??
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ed_ma61 | Fri, 29 November 2002 12:32 |
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Re: How does the 7m-gte boost retard ??
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justcallmefrank | Sat, 30 November 2002 07:28 |
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Re: How does the 7m-gte boost retard ??
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SUPRAGTE | Sun, 01 December 2002 06:13 |
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Re: How does the 7m-gte boost retard ??
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Esteban | Mon, 02 December 2002 06:56 |
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Re: How does the 7m-gte boost retard ??
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SUPRAGTE | Tue, 03 December 2002 02:50 |
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Re: How does the 7m-gte boost retard ??
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1G-GTEFreAk | Thu, 02 January 2003 17:05 |
