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Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
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Split Second MAF conversion
Just thinking this forum is the place to find out about MAF conversions.
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04-17-2008, 08:49 PM
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Registered
Join Date: May 2007
Location: Portsmouth, Ohio
Posts: 112
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http://forums.rennlist.com/rennforums/showthread.php?t=424511&goto=newpost
This is the link from the rennlist I started yesterday. I love the idea and there is no doubt there would have to be a HP gain. But the cost is almost 1/4 to a supercharger. They quoted me $755.00 and I know everything is high for a 928 but WOW!!! Brian
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1984 928 Auto 2001 525I 1996 Suburban 2500 454ci |
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04-18-2008, 02:05 AM
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Herr kuhn would be the expert on the subject.
You really won't see a HP gain. If so it will be very little. The gain is in the ability to tune your fueling. You also gain a little efficiency due to the elimination of the AFM, but don't expect to feel more power. You may feel that you have better throttle response though.
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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04-18-2008, 05:06 AM
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Architecture & Porsche's
Join Date: Jan 2006
Location: Austin, Texas
Posts: 3,189
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Fuel tuning can be done with an SMT-6 too for 1/2 that price.
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Porsche Club Racing National Scrutineer '89 Andial 951 '82 928R '74 911 RSR 3.6 |
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04-18-2008, 06:18 AM
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Quote:
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1984 928's w/ 5 speed Smoked Quartz Metalic 1982 928's Turbo w/ 5 Speed Platinum Metalic 1978 Euro Widebody w/ 5 speed Guards Red |
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04-18-2008, 07:09 AM
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Location: florida
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That sound high for that .
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The beast 1984 928s twin turbo 5speed LSD/ 508.6RWHP 495RW ft lbs 12.5 psig manifold pressure, MS2 and EDIS-8 nikasil block JE 2618 pistons (TripleT). 2001 AUDI A6 4.2 chip 320 hp. 2002 CHEV Tahoe 4wd. 1971 sonett race car GT4 National Champion now GTL class car sold. The words of a Ford GT man. ( Damit i need to get some turbos) |
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04-18-2008, 09:54 AM
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Join Date: May 2007
Location: Portsmouth, Ohio
Posts: 112
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NO they have not touched base with me today. There has to be some performance gain to the air puching the barn door open compaired to a open through flow sensor without a flap for a restriction.
Brian
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1984 928 Auto 2001 525I 1996 Suburban 2500 454ci |
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04-18-2008, 01:41 PM
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Join Date: Aug 2006
Location: Cincinnati, Ohio
Posts: 1,019
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The real reason you put the MAF in place of the AFM is to gain in transient response. The car just takes on a more crisp throttle response with the MAF sensor. The MAF response is an order of magnitude faster than the AFM...because there are no moving parts. The PSC1-009 should be about $350.00 and a proper MAF about $200.
If you go PSC1-009...make sure to tell Mark you want the ability to adjust the altitide compensation. I have the first unit with that ability...the originals way over compensated for altitude and the car would simply not run at above 4500 ft...too rich. I was supposed to install that thing a long time ago, but have not done it yet. Mine has the ability to remove and replace resistors on the altitude compensation circuit. I have always said I don't think the unit needs any, or very little at best. Mark and I disagreed on this, but Mark agreed to let me test different compensation circuits on the altitude side...the unit has been sitting in my drawer for 18 months now.
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Kuhn Performance Technologies, LLC Big Gun: 1988 928S4 Twin Turbo, 5-SPD/LSD 572 RWHP, 579 RW ft-lbs, 12 psig manifold pressure. Stock Internals, 93 octane. Little Gun: 1981 928 Competition Package Twin Turbo, 375 RWHP, 415 RW ft-lbs, 10psig manifold pressure. Nikasil Block, JE2618 Pistons, 93 octane. Last edited by Herr-Kuhn; 04-18-2008 at 03:01 PM.. |
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04-18-2008, 02:56 PM
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