Accel enrichment enlightenment?

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Accel enrichment enlightenment?

Postby radiogareth » Sun Apr 09, 2017 12:50 pm

We have a 2.0 Zetec on Triumph Daytona ITBS. The injectors pretty much fire straight onto the back of the intake valves but without geometry changes to the linkage a lot of intake area suddenly appears when you open the throttle.

The WB02 shows an instant LEAN condition (no surprises) at this point and the engines 'gasps' until you close the throttle. The fuel MAP is good enough for gentle acceleration and driving, but its only done 3 miles on the road 'between garages' (yes it was insured).

It clearly needs MORE fuel on acceleration, but roughly how much and to which graph/adder box do I drag/type a number into?
Its got a 30 mile drive (to its IVA test) on Thursday and it would be helpful if we could get it behaving a little better, not least the tester needs to drive it around a bit.....

We will be running Tune Analyze live! en-route and be driving it very gently.

Tune attached.
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Gareth & Josh
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Re: Accel enrichment enlightenment?

Postby slow_hemi6 » Sun Apr 09, 2017 5:12 pm

Use as little threshold as you can but enough to stave off false triggering. Then increase the amounts in the Added rows to cover the lean. You can watch the TPS AE graph in real time time to see which TPS dot column is being used. You can if you wish alter the TPSdot column numbers to tailor the curve more to your response needs. You do this by dragging the dots on the graph or by entering data to the table.
Find the Manuals up top under Quick links: Manuals. :RTFM:
Cheers Luke
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Re: Accel enrichment enlightenment?

Postby radiogareth » Mon Apr 10, 2017 2:28 am

Thanks, we will have a look at that....
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