oztracktuning
March 30th, 2006, 05:14 PM
Had the car dynod today by Todd of Mainline whose business distributes Dynolog Dynos.
I have heaps of logs made on the Dyno on my laptop.:thankyou2:
But the brief summary is
My car made 263rwkw (352hp) and 659Nm. (487ftlb)
The converter gave a peak torque multiplied figure in 3rd gear of 991Nm (731ftlb)
Maximum unlocked rwkw was 255rwkw (342hp)
At 100kph(62mph) cruise at realistic loads it was at 32mpg. At 1600rpm it was in the high 30s and about 75kph (48mph). We tweaked the timing and gained information that can improve cruise economy a small amount. Using an inline fuel flow meter.
More timing across the range gained the car some power and a little more again by leaning it out a little. Adjustments were made using the Bi-directional controls and the gearbox was also locked in 3rd gear and with the converter locked for some runs this way as well. It worked really well.
A third gear run was flashed from 2200rpm to stall speed and then accelerated to peak power with the converter unlocked - this yielded a peak torque of 991Nm aided by the converter. The unlocked stall converter multiplied torque much higher in rpm than expected - it did it all the way to 5600rpm. http://forums.v8owners.com.au/images/smilies/smilie_daumenpos[1].gif
It had 220rwkw (295hp) at 4750rpm and went above 250rwkw (335hp) at 5300rpm, with max engine torque at about 5400rpm BUT it was very close to flat from 4700rpm to 5600rpm. Most of a drag race run is for my car at the zone of peak torque.
Thanks again to Todd for showing me a great range of the features of the Dynolog system ...we both had a great time investigating things in a few new ways using the processing power of the Dynolog computer system and his multi gas analyser,inline fuel flow meter and lots of logs on my laptop using EFIlive.
Best power was made with an extra 3 degrees across the range added and the afrs at about 12.7. This would be a good drag tune. Less timing made the power drop off noticeably. The afrs being richer made less of a difference.
I have heaps of logs made on the Dyno on my laptop.:thankyou2:
But the brief summary is
My car made 263rwkw (352hp) and 659Nm. (487ftlb)
The converter gave a peak torque multiplied figure in 3rd gear of 991Nm (731ftlb)
Maximum unlocked rwkw was 255rwkw (342hp)
At 100kph(62mph) cruise at realistic loads it was at 32mpg. At 1600rpm it was in the high 30s and about 75kph (48mph). We tweaked the timing and gained information that can improve cruise economy a small amount. Using an inline fuel flow meter.
More timing across the range gained the car some power and a little more again by leaning it out a little. Adjustments were made using the Bi-directional controls and the gearbox was also locked in 3rd gear and with the converter locked for some runs this way as well. It worked really well.
A third gear run was flashed from 2200rpm to stall speed and then accelerated to peak power with the converter unlocked - this yielded a peak torque of 991Nm aided by the converter. The unlocked stall converter multiplied torque much higher in rpm than expected - it did it all the way to 5600rpm. http://forums.v8owners.com.au/images/smilies/smilie_daumenpos[1].gif
It had 220rwkw (295hp) at 4750rpm and went above 250rwkw (335hp) at 5300rpm, with max engine torque at about 5400rpm BUT it was very close to flat from 4700rpm to 5600rpm. Most of a drag race run is for my car at the zone of peak torque.
Thanks again to Todd for showing me a great range of the features of the Dynolog system ...we both had a great time investigating things in a few new ways using the processing power of the Dynolog computer system and his multi gas analyser,inline fuel flow meter and lots of logs on my laptop using EFIlive.
Best power was made with an extra 3 degrees across the range added and the afrs at about 12.7. This would be a good drag tune. Less timing made the power drop off noticeably. The afrs being richer made less of a difference.