Latest results S206 turbo
01 October 2009, 10:35 AM
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01 October 2009, 10:42 AM
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01 October 2009, 01:44 PM
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Scott's isn't an "ordinary" road car build! He already has one of those..
A work of art
01 October 2009, 05:49 PM
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We should always question the "Remarkable", so we understand what makes it so, and can then make it "repeatable".
The strange VE clearly isn't down to the turbo, otherwise one would expect to see similar results with everyone using one, and that isn't the case.
It will be interesting to see the graph, and dyno "snap" file. Might help us understand the numbers a little better.
Mark.
The strange VE clearly isn't down to the turbo, otherwise one would expect to see similar results with everyone using one, and that isn't the case.
It will be interesting to see the graph, and dyno "snap" file. Might help us understand the numbers a little better.
Mark.
01 October 2009, 11:34 PM
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We should always question the "Remarkable", so we understand what makes it so, and can then make it "repeatable".
The strange VE clearly isn't down to the turbo, otherwise one would expect to see similar results with everyone using one, and that isn't the case.
It will be interesting to see the graph, and dyno "snap" file. Might help us understand the numbers a little better.
Mark.
The strange VE clearly isn't down to the turbo, otherwise one would expect to see similar results with everyone using one, and that isn't the case.
It will be interesting to see the graph, and dyno "snap" file. Might help us understand the numbers a little better.
Mark.
As I indicated, this is a work in progress, and as soon as we're done tweaking, you'll be the first on the list matey.
02 October 2009, 09:27 AM
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Alan,
Sorry for the misunderstanding. If a turbo has an odd quirk, it would generally show in some way on most engine types, not just one.
There have been several graphs posted for the S206 now, and I don't recall seeing any similar VE result. That implies that the odd result on this car, is unlikely to be related to the turbo, but something else in the spec'. That's all !
If you want to post figures for people to be impressed about what you're doing, you also have to expect people to want to know more about them. It goes hand in hand !
Mark.
Sorry for the misunderstanding. If a turbo has an odd quirk, it would generally show in some way on most engine types, not just one.
There have been several graphs posted for the S206 now, and I don't recall seeing any similar VE result. That implies that the odd result on this car, is unlikely to be related to the turbo, but something else in the spec'. That's all !
If you want to post figures for people to be impressed about what you're doing, you also have to expect people to want to know more about them. It goes hand in hand !
Mark.
02 October 2009, 12:40 PM
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Alan,
Sorry for the misunderstanding. If a turbo has an odd quirk, it would generally show in some way on most engine types, not just one.
There have been several graphs posted for the S206 now, and I don't recall seeing any similar VE result. That implies that the odd result on this car, is unlikely to be related to the turbo, but something else in the spec'. That's all !
If you want to post figures for people to be impressed about what you're doing, you also have to expect people to want to know more about them. It goes hand in hand !
Mark.
Sorry for the misunderstanding. If a turbo has an odd quirk, it would generally show in some way on most engine types, not just one.
There have been several graphs posted for the S206 now, and I don't recall seeing any similar VE result. That implies that the odd result on this car, is unlikely to be related to the turbo, but something else in the spec'. That's all !
If you want to post figures for people to be impressed about what you're doing, you also have to expect people to want to know more about them. It goes hand in hand !
Mark.
The car is very well prepared, but not technically explicit, using one of our engines, but no head or cam profile changes.
We aren't into ***** waving, as a motorsport competitor and sponsor I'm only into results.
Naturally we are interested in how the S206 compares to other turbos, and of course we are going to be closely examining worthy offerings such as the 321V when looking at 2.5's in particular. There wouldn't be any point in spending time on a new turbo configuration if we could just go out and buy a better one would there? I won't post any comparison graphs taken from our dyno without your express request, in case the results are misinterpreted, we all know the blind alley that can lead to! In any event, we aren't finished yet, being keen to further develop a very useful unit.
02 October 2009, 07:42 PM
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02 October 2009, 08:53 PM
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02 October 2009, 09:54 PM
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Alan,
I tried to make it clear that my comments were about "engine VE", and not anything to do with turbos, be it a S206, or one of the MD321 series.
An engine VE of 1.1cfm per BHP is unusual on a Subaru engine that's all !
I tried to make it clear that my comments were about "engine VE", and not anything to do with turbos, be it a S206, or one of the MD321 series.
An engine VE of 1.1cfm per BHP is unusual on a Subaru engine that's all !
Last edited by Lateral Performance; 02 October 2009 at 09:56 PM.
03 October 2009, 06:27 PM
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03 October 2009, 06:55 PM
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03 October 2009, 10:24 PM
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04 October 2009, 12:52 PM
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When it was run on Zen's dyno it only produced 519bhp running circa 1.8bar @ peak power (High boost). This was not a good run though, as ambients were through the roof and Tracktive have put in quite aggressive ignition adjustment based on inlet temps, because of the higher compression and VPower only for safety. The power drops like a stone on the Zen graph.... which it never did using Tracktives dyno cell. After seeing the graph, Richard Bulmer said it had undoutedly pulled alot of iginition, because of the shape of the curve.
At no point in time had the high boost power line dropped below the low boost power line on Tracktives Dyno Cell.... on Zen's dyno, it did!
Low Boost on Tracktives dyno cell it gave 415bhp at the hubs
Low Boost on Zen's dyno cell it gave 485bhp at the fly
High Boost on Tracktives dyno cell it gave 485bhp at the hubs
High Boost on Zen's dyno cell it gave 519bhp at the fly
It is expected that a High Boost run with adequate cooling would equate to 540+bhp on a flywheel dyno.
At no point in time had the high boost power line dropped below the low boost power line on Tracktives Dyno Cell.... on Zen's dyno, it did!
Low Boost on Tracktives dyno cell it gave 415bhp at the hubs
Low Boost on Zen's dyno cell it gave 485bhp at the fly
High Boost on Tracktives dyno cell it gave 485bhp at the hubs
High Boost on Zen's dyno cell it gave 519bhp at the fly
It is expected that a High Boost run with adequate cooling would equate to 540+bhp on a flywheel dyno.
05 October 2009, 09:34 AM
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alan gave me an update the other day there, certainly sounds like its coming on well, think they are making the i/c pipes this week so looking forward to getting the pics through to see the progress, certainly going to be in a lot better state than when he first got the car down there 
