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Join Date: Jul 2003
Location: Port Macquarie Australia
Posts: 510
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930 EFI - Ignition question
Just got my 930 back from having the new EFI tuned at the local dyno. I admit that the car drives pretty much the same as it did before I EFI'd it.
The max TQ/HP that it was producing on the dyno is still below the factory figures for a stock 930 engine. I am a bit worried that there might be some other issue (Like cam timing). One thing I did notice was that there is a LOT of ignition advance now. There is 37deg at 3000rpm. I have checked the cam timing twice before, should I do it again? I am open to suggestions and ideas. Steve
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2008 BMW 320i 2006 Mercedes ML320 2004 Mercedes ML270 cdi 1998 Porsche Boxter 1988 Porsche 930 Targa (sold) |
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03-10-2007, 05:37 PM
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Join Date: Mar 2002
Posts: 3,563
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Curious, are you still running the factory intake manifold, or Carrera manifold?
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition 
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03-10-2007, 06:30 PM
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what? me worry?
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 7,449
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Something is not right...
but we also need more info regarding your engines set up
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03-10-2007, 06:36 PM
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Join Date: Dec 2001
Location: MA USA
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Hi Steve,
Something must be wrong if you don't notice a difference with the EFI. My motor put out maybe 50 more hp with EFI. But I did change a few things at the same time. Is that 37 deg advance at cruise or WOT. At cruise I run about 44 degs and at WOT about 25 degs.
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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03-10-2007, 06:47 PM
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Thanks guys..
here is the setup I'll post a pic when I get home today. Goingsuperfast EFI Kit Wasted Spark EDIS system 55lb Siemens Low impedance Injectors 36-1 Trigger wheel Factory 930 Intake manifold - Billet Injector Blocks Factory Intercooler Factory Diverter Valve Innovate LC-1 Wideband EMS Stinger ECU K27-7200 Turbo Aftermarket Exhaust That 37deg is at cruise. I'll post the ignition map tonight.
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2008 BMW 320i 2006 Mercedes ML320 2004 Mercedes ML270 cdi 1998 Porsche Boxter 1988 Porsche 930 Targa (sold) |
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03-10-2007, 07:02 PM
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Steve
What cams? Are you twin plugged or single?
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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03-10-2007, 07:13 PM
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Join Date: Jul 2003
Location: Port Macquarie Australia
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Quote:
Stock Cams Single Plugged Ford EDIS CoilPack 0.8 bar boost
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2008 BMW 320i 2006 Mercedes ML320 2004 Mercedes ML270 cdi 1998 Porsche Boxter 1988 Porsche 930 Targa (sold) |
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03-10-2007, 07:29 PM
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Forced Induction Junkie
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Quote:
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Dave '85 930 Factory Special Wishes Flachbau Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P |
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03-11-2007, 08:08 AM
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I was a bit dissapointed whan I changed the 3DLZ for the K27-7200, I noticed a bit of an earlier spool but it missed the rush of the 3DLZ when it came on boost.
I have recently purchades a TIG welder and I would consider doing some fabrication and installing a GT35. Has anyone else reading this done this?
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2008 BMW 320i 2006 Mercedes ML320 2004 Mercedes ML270 cdi 1998 Porsche Boxter 1988 Porsche 930 Targa (sold) |
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03-11-2007, 03:00 PM
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Join Date: Dec 2001
Location: MA USA
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If I were you I would change the cams and build a big ass intercooler with you new tig welder.
Also what dyno are you using?
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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03-11-2007, 05:14 PM
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Join Date: May 2002
Location: Up North
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My 2 cents... 37 degree at cruise seems to be very high.
I think even the NA cars only runs 32-33 degree max?
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87 930 K27HFS/B&B/Twin-Plug... Megasquirted 
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03-12-2007, 05:52 AM
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What freekin Oil Leak?
Join Date: Oct 2002
Location: Oahu
Posts: 177
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If your HP/TQ values are truly below the factory specs with that setup, then I think you do have an issue.
Mike (mppickett ) has a spark table that advances his EDIS/Megasquirt ignition to as high as 36 degrees but only over a very short range during acceleration. You may already know this, but you cannot use the timing lights with the selectable advance on EDIS systems. This will give you a faulty reading. You have to set the light to zero degrees and then read the advance using the pulley markings.
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Steve '79 930 US Last edited by TurboBert; 03-12-2007 at 08:29 AM.. |
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03-12-2007, 08:23 AM
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1985 Porsche 930 Fac. Slantnose 3.3l
