930 EFI - Ignition question

[rotorhead]

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

[WydRyd]

Curious, are you still running the factory intake manifold, or Carrera manifold?

[TimT]

Something is not right...

but we also need more info regarding your engines set up

[dean]

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.

[rotorhead]

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.

[dean]

Steve

What cams?

Are you twin plugged or single?

[rotorhead]

Originally posted by dean
Steve

What cams?

Are you twin plugged or single?

Sorry...

Stock Cams
Single Plugged
Ford EDIS CoilPack
0.8 bar boost

[WERK I]

Originally posted by rotorhead

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

It's the item above listed as K27-7200 Turbo. You got all the right pieces to put out over 500BHP, but the turbocharger will only flow 450-475BHP on a good day. Install a HF or S or Garrett GT35 and you will see a marked improvement.

[rotorhead]

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?

[dean]

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?

[hobieboy]

My 2 cents... 37 degree at cruise seems to be very high.
I think even the NA cars only runs 32-33 degree max?

[TurboBert]

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.