Houston Dyno Tales: Lowness gets high
Houston Dyno Tales: Lowness gets high
High dyno numbers, that is. Sorry, I couldn't resist. It was nice of Lowness to drop on by. I don't think he was scheduled for a tune but we got him in anyway. He's a good customer to have because he's had a number of different engine control systems. First he had a mail-in flash, then a UTEC then back to a custom flash again (but custom road tuned).
His car is basically a Stg 1+ car with free-flow cat and 680cc injectors. It baselined (Purple run), with is road tuned flash/EBC combo, at 291whp. Boost was holding nearly 20psi to redline so we don't think there is any type of leak
AFR were rich, but not wildy rich. But ignition advance curves seems to be typical of the road tunes we've seen.
So, next up, we flashed over the custom road tuned flash with an basic XEDEFlash. The same XEDEflash we use to scale for 680cc injectors for our Stg 2 kits. In addition to the injectors scaling, high boost limits, higher rev limits, it also has a revised ignition map. Nothing extraordinary since most of the tuning is intended to be conducted through the XEDE. Yet still, even without the XEDE, it picked up 25-30whp at 6500rpm over the custom road-tuned reflash.
Next up, we installed the XEDE and actually did some tuning. In doing so, we picked up power everwhere else. After several runs of tuning, we ended up making 313whp. Torque was also improved across the board. Boost was unchanged. Nothing under the hood was touched. These gains were from mapping and mapping alone. Just a few feet in front of everybody. This final pump gas run is the Red Dyno Run.
Lowness wanted a race gas map, so we gave him one. Dumped in 10 gallons of race gas and loaded up another map in the XEDE's secondary map bank. After a few tuning runs, we ended up at a very strong 340whp. With a cat, no less!
Test drive was right in line with what the dyno numbers show. Real fast. I think we were all happy with the results.
Now now.. there's a place for "road tuning". But I, and every real ECU calibration guy i know in the industry or in real motorsports for that matter, don't think it can be done properly without first mapping first and foremost on the dyno. Road tuning can be viewed as the last 5% of a complete tune. Not the whole thing, from beginning to end. This car and Zarathustra's car proved that quite clearly. In front of everyone. QED.
Previous Custom Road Tune vs. Custom Dyno tune vs Custom Dyno tune on race gas
WHP and Torque:
Boost and AFR:
Next step would be to get the XEDE to control boost!
His car is basically a Stg 1+ car with free-flow cat and 680cc injectors. It baselined (Purple run), with is road tuned flash/EBC combo, at 291whp. Boost was holding nearly 20psi to redline so we don't think there is any type of leak
AFR were rich, but not wildy rich. But ignition advance curves seems to be typical of the road tunes we've seen.So, next up, we flashed over the custom road tuned flash with an basic XEDEFlash. The same XEDEflash we use to scale for 680cc injectors for our Stg 2 kits. In addition to the injectors scaling, high boost limits, higher rev limits, it also has a revised ignition map. Nothing extraordinary since most of the tuning is intended to be conducted through the XEDE. Yet still, even without the XEDE, it picked up 25-30whp at 6500rpm over the custom road-tuned reflash.
Next up, we installed the XEDE and actually did some tuning. In doing so, we picked up power everwhere else. After several runs of tuning, we ended up making 313whp. Torque was also improved across the board. Boost was unchanged. Nothing under the hood was touched. These gains were from mapping and mapping alone. Just a few feet in front of everybody. This final pump gas run is the Red Dyno Run.
Lowness wanted a race gas map, so we gave him one. Dumped in 10 gallons of race gas and loaded up another map in the XEDE's secondary map bank. After a few tuning runs, we ended up at a very strong 340whp. With a cat, no less!
Test drive was right in line with what the dyno numbers show. Real fast. I think we were all happy with the results.
Now now.. there's a place for "road tuning". But I, and every real ECU calibration guy i know in the industry or in real motorsports for that matter, don't think it can be done properly without first mapping first and foremost on the dyno. Road tuning can be viewed as the last 5% of a complete tune. Not the whole thing, from beginning to end. This car and Zarathustra's car proved that quite clearly. In front of everyone. QED.
Previous Custom Road Tune vs. Custom Dyno tune vs Custom Dyno tune on race gas
WHP and Torque:
Boost and AFR:
Next step would be to get the XEDE to control boost!
Last edited by David@Vishnu; Mar 26, 2006 at 01:21 PM.
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