going from maf to speed density tune

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Jul 21, 2010 | 07:28 AM

doin-work

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going from maf to speed density tune

I am looking to go with aon my current build but I don’t know how can some one help me or steer me in the direction where I can find this info

Jul 21, 2010 | 10:09 AM

Phil'sC5vette

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From: Tampa

You may have to tell us a little more about your car and set up.

Do you live in an area where the weather never changes?

Jul 21, 2010 | 11:58 AM

wait4me

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From: warsaw, in

in efilive in the help tab, then go to custom os tutorial, it helps with most of the things needed when you change over to sd.

www.efilive.com

Jul 21, 2010 | 07:43 PM

doin-work

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i live in south florida so its always hot there isnt much change down here im going with a 383 bottom end ported ls6 heads a mild cam with a fast 102 mm intake and a 150 shot

Jul 21, 2010 | 07:50 PM

BLK02WS6

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From: on the dyno tuning in MD

I would go with EFILive, custom operating system 5 - then you can go speed density and control your nitrous timing all in one convenient package...

Jul 21, 2010 | 07:57 PM

brianfromhawaii

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even if the weather changes a bit, SD is great... look how many cars run SD and are FINE!! my yamaha r1 is SD and puts out 180hp... and i ride it on hot as **** days, pouring rain and freezin cold in the mountains.

SD is THE ****!

Jul 23, 2010 | 09:35 PM

joecar

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From: So.Cal.

Basically, remove the MAF, and during tuning you disable CL/trimming, and use wideband lambda to correct the VE table.

Then for street use, you can enable CL/trimming, or for race use you can eliminate the O2's.

+1 on COS5... it's very versatile (nitrous, boost, SD or MAF, OL or CL, Alpha-N).

COS5 needs a 0411 PCM.

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Jul 26, 2010 | 09:41 PM

white01ss

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From: Dallas, TX

Running EFILive's COS3 which lets you to easily switch between front O2s and SD at any MAP & RPM cell. Used the front O2s for a while with the stock cam but after the blower cam the AFR was all over the place. I could hear and feel the motor oscillating rich to lean... very annoying even with the average AFR where I wanted. Switched to 100% SD and it was so much smoother and gained a few mpg not that it matters.