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Can someone double check my basemap. Also I think I'm getting lean conditions.

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Can someone double check my basemap. Also I think I'm getting lean conditions.

Old 06-20-2007, 11:09 AM
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Default Can someone double check my basemap. Also I think I'm getting lean conditions.

Well first off I cant exactly check my AFR because the Innovative LC1 is garbage. So I made this map for it. Injectors are 460's from an RX7. Map sensor is a motorola 2.5bar and spark plugs are NGK ZFR5 Turbo is a tipical T04E .50a/r .57 trim

Ignition retard is 1.10 degrees per psi of boost and set at 180% turbo efficiency. meaning it should be running super rich (O2 is disabled). But its not.

I am getting a gray tinge on all my plugs. it will be carbon all around the bottom but the arm hanging over the electrode will be gray in color.

I'm worried its leaning out. According to http://www.dansmc.com/spark_plugs/Sp...s_catalog.html they seem ok. I just want another opinion so I dont blow up the built motor. I'm set at 7psi right now i would love to run 10 on these injectors but am afraid to change the map around.

This is the ignition timing. (base timing is set at 16 degrees)



Fuel



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Old 06-20-2007, 11:57 PM
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Default Re: Can someone double check my basemap. Also I think I'm getting lean condition

Come on guys. i need some insight here.
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Old 06-21-2007, 07:50 AM
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Default Re: Can someone double check my basemap. Also I think I'm getting lean condition

Originally Posted by Dmc1
Alright fine. 1.50 degrees of retard is probably to much. .75 usaully works pretty well I usaully only have to retard or advance a degree or so on a Bseries to get it where it likes it. D's are another story.

Your fuel probably isn't all that rich if rich at all. I find I end up adding a lot of fuel in the boost portion with 120% turbo efficiancy. check your plugs and watch for signs of detonation. Get one step colder plugs and see what they look like. You don't want to hot a plug causing preignition. if that happens the motors done.

But get a working wideband.
Well I got my wideband working for a brief period today. re calibrated it and I'm seeing low 12 afr's in boost. maybe i'll turn up the fuel a bit and see how that performs.
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Old 06-21-2007, 11:16 AM
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Default Re: Can someone double check my basemap. Also I think I'm getting lean condition

Glad to see you really did read all those plug articles I posted up Dmc1 Ok, here's the skinny...greyish color on the strap has no impact at all on your afr. The porcelain that's visible should stay a clean white color when you're in the proper temp range for the plug regardless if you run an 11:1 afr or 14.7:1 afr. The proper area to read is actually inside the plug at the bottom of the well where it's hard to see. If you have a grey or light tan ring down there, then yeah...you're running too lean in boost. The top end's of the porcelain are suppose to "heat clean" themselves off so they kinda look new after extended period of run time (i.e. engine up to running temp). The upper area of the plug only deals with your part throttle loading and should clean off. The color "band" (or annealing mark) on the ground strap will tell you if your in the right heat range. Only change the heat range of the plug after you get tuned closer to a final tune or you find you're still detonating (like said, indicated by small black pepper spots on the porcelain...this is oil coming past the rings under light detonation). Hope this helps out some.
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Old 06-21-2007, 04:19 PM
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Default Re: Can someone double check my basemap. Also I think I'm getting lean condition

I dont see any pepper spots. Just carbon.
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Old 06-21-2007, 04:28 PM
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Default Re: Can someone double check my basemap. Also I think I'm getting lean conditions.

what about a det can??
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