In an ideal world you don`t want to take the injector duty cycle over 80% and I`m at 94%
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If you use the formula from this web site
http://www.translatorscafe.com/cafe/...gram%2Fsecond/
And convert kg/hr to grams/sec then divide that by 0.8 I`ve hit 300.69bhp :)
The thing is there is no ideal world!...
Most Volvo`s run at approx. 85% of the injector cycle ......94% is fine nothing wrong at all
The X40 T4 has the smallest sized injectors and according to Theory it should not deliver what it does!......but Volvo must have it correct as when not on full chat it is the most economical Volvo engined X40...
But I think 98.7% is a bit high :)
Attachment 26808
And thats 309bhp :)
COP (coil on plugs) update
I`ve just recieved these pictures from Paul (Avinitlarge) who has done a fantastic job converting the M4.4 ecu.
http://i1067.photobucket.com/albums/...17be027_0.jpeg
http://i1067.photobucket.com/albums/...f4ff460_0.jpeg
Nice, my cop-ed ECU is ready for action as well :)
I've got cop built into my turbo tuner but never really considered using it, are the benefits worth it? seems to run ok on the dizzy
I`m lead to believe you get a better spark with COP`s
Fitted the fuel rail pressure transmitter.
http://i1067.photobucket.com/albums/...920_142356.jpg
So at idle I have 32.98 psi fuel rail pressure.
Attachment 26826
As mensioned in my M66D thread I`ve lowered the O2 warm up time and enrichment V`s temp tables.
These are the values for the enrichment V`s temp (left) and O2 warm up time (middle and right)
http://i1067.photobucket.com/albums/...cmentvtemp.jpg
I`ve lowered the enrichment by 28% and lowered the O2 warm up by 20-30 degrees on all temps from zero to 110 degrees C
http://i1067.photobucket.com/albums/...hmentVtemp.jpg
The car started and ran OK with a low AFR of 12 for a few minutes then the AFR climbed to 14.7-15.3 until the temp came up to normal,
Before hand it would stay at a AFR of 12 for 7-10 minutes before climbing to a AFR of 14.5-14.9
So form these results I`ve managed to reduce the fueling amount on start up, I`ll will confirm over the weekend if I`ve managed to increase my MPG :)
7-10 minutes, wow, thats a lot of fuel being wasted.
Nice one!
RESULT :)
Did a 70 mile round trip to the breakers this morning to pick up a few bits and bobs.
My MPG has gone from 19 to a average of 26.3 mpg
http://i1067.photobucket.com/albums/...018_100522.jpg