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Macht Schnell
 
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Join Date: Jun 2003
Location: PSL, FL
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AFR and Advance curve feedback

Hello,
I am working to get my car ready for Tuning. It is an Electromotive Tec3r. Here are some screenshots of my current adv matrix and afr matrix. Any feedback would be greatly appreciated.





Thanx!
Les
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 12-20-2007, 01:15 PM
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Forced Induction Junkie
 
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Seems like a good base map. Though the mechanical initial advance looks a tad advanced and if it's twin-plugged, 28 max advance may be too much, maybe 25-26 max advance?
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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
Old 12-21-2007, 06:11 AM
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Macht Schnell
 
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Quote:
Originally Posted by WERK-I View Post
Seems like a good base map. Though the mechanical initial advance looks a tad advanced and if it's twin-plugged, 28 max advance may be too much, maybe 25-26 max advance?

Hi Dave,
I'm looking at a sheet from alldata and it shows 25-27 at 4000. I think I'll back down on that 28.

Thanx!
Les
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 12-21-2007, 06:56 AM
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Registered User
 
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les, you've got a PM
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2014 Cayman S
2011 Cayenne Turbo
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Old 12-21-2007, 01:04 PM
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Hello!

Full throttle-no boost (100kPa) fuel map is slightly lean. Being there is akin driving a N/A car full throttle.

Fuel map below 30kPa should be zeroed. This is engine-braking teritory and there is no need to inject fuel there. It will just pop.

Extra trick:
Advance curve where turbo is supposed to go online can be retarded somewhat to gain response. You can do it later on as you don't know how turbo will react. But say that turbo goes from zero boost (100kPa) to 150kPa between 2400 and 2700 RPM, those cells can be retarded five degrees or so and you'll gain boost responce.
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Thank you for your time,
Old 12-22-2007, 02:49 AM
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Macht Schnell
 
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Join Date: Jun 2003
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Quote:
Originally Posted by beepbeep View Post
Hello!

Full throttle-no boost (100kPa) fuel map is slightly lean. Being there is akin driving a N/A car full throttle.

Fuel map below 30kPa should be zeroed. This is engine-braking teritory and there is no need to inject fuel there. It will just pop.

Extra trick:
Advance curve where turbo is supposed to go online can be retarded somewhat to gain response. You can do it later on as you don't know how turbo will react. But say that turbo goes from zero boost (100kPa) to 150kPa between 2400 and 2700 RPM, those cells can be retarded five degrees or so and you'll gain boost responce.
Thanx Goran!

I'm working on it some today, and I'll be adjusting the EFI a little.

Les
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 12-22-2007, 06:46 AM
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