Tales From the Dyno: Canadian BMWs on 94oct!
Nov 25, 2006, 05:20 PM
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Tales From the Dyno: Canadian BMWs on 94oct!
Just got back from Vancouver last night. I went there to custom tune a couple of bone stock BMW 335is. Other the XEDE, the cars have no mods whatsoever. No exhaust. No intake. Nothing. Just two plain jane 335is running on 94oct pump as. Note that the dyno was a Dyno Dynamics 2wd unit belonging to Kenetic Motorsports. It was calibrated to read like a Dynojet (hence the 265-270whp stock runs).
Car #1
Stock vs. Xede tuned
Car #2
Stock vs. Xede tuned
In both cases, boost was raised approx 3psi across the board. Air/Fuel ratio under boost was made 1-1.5 points richer. Both Car #1 and #2 are running identical maps. Car #1 was a little bit more knock resistant than Car #2 (hence the slightly higher power number). I suspect this can be explained by car to car variance as well as variance in gas quality. On the 91oct we get here in CA, we only approach those numbers when we add on a full exhaust (which, in addition to being high-flow, deletes 2 of the 4 cats). So, yes, 94oct rocks. 93oct should be nearly as good. And our 91oct just sucks. But at least the weather is better here in CA.
Cheers,
shiv
Car #1
Stock vs. Xede tuned
Car #2
Stock vs. Xede tuned
In both cases, boost was raised approx 3psi across the board. Air/Fuel ratio under boost was made 1-1.5 points richer. Both Car #1 and #2 are running identical maps. Car #1 was a little bit more knock resistant than Car #2 (hence the slightly higher power number). I suspect this can be explained by car to car variance as well as variance in gas quality. On the 91oct we get here in CA, we only approach those numbers when we add on a full exhaust (which, in addition to being high-flow, deletes 2 of the 4 cats). So, yes, 94oct rocks. 93oct should be nearly as good. And our 91oct just sucks. But at least the weather is better here in CA.
Cheers,
shiv
Last edited by shiv@vishnu; Nov 25, 2006 at 05:23 PM.
Nov 25, 2006, 05:29 PM
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For comparisons sake, here's a dyno from another custom tune last week (on a Dynojet)
Stock vs Stg 1 (Xede AND exhaust) on our rotten 91oct:
Stock vs Stg 1 (Xede AND exhaust) on our rotten 91oct:
Nov 27, 2006, 05:16 PM
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Thats the second Canadian DD Dyno that is putting in a correction...I suppose big #'s sell
Maybe we can get some 335's up on our dyno when Shiv gets to town in the new year to get some comparos
Maybe we can get some 335's up on our dyno when Shiv gets to town in the new year to get some comparos
Nov 27, 2006, 06:33 PM
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Originally Posted by Dyno4mance
Thats the second Canadian DD Dyno that is putting in a correction...I suppose big #'s sell
Maybe we can get some 335's up on our dyno when Shiv gets to town in the new year to get some comparos
Maybe we can get some 335's up on our dyno when Shiv gets to town in the new year to get some comparos
1 American horsepower equals 1.2 HP Canadian.
Nov 28, 2006, 06:35 AM
#7
Originally Posted by Dyno4mance
Thats the second Canadian DD Dyno that is putting in a correction...I suppose big #'s sell
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Nov 28, 2006, 04:24 PM
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Originally Posted by Drifto
Of course they do. It would be cool if you would offer the DJ inflation to people who wanted it. DJ #'s are what people quote and everytime someone asks me I say 374 on a DD... which is XX on a DJ. The DD is a superior tuning device no doubt about it, but it gives weak numbers compaired to the DJ regardless of which dyno is right. Give people a great tuning tool with DJ numbers and you've got a winner.
more wrongs don't make it right, does it....?anyway it won't make your junk any quicker now will it??
Nov 28, 2006, 10:47 PM
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Originally Posted by boomn29
What do these things weigh again?
What kinda 1/4 mile times and traps are they netting before and after tunes? I doubt many 335i owners run 1/4's - but given the dynocharts someone should be able to guess-stimate it for us.
What kinda 1/4 mile times and traps are they netting before and after tunes? I doubt many 335i owners run 1/4's - but given the dynocharts someone should be able to guess-stimate it for us.
Last edited by KOEvo; Dec 1, 2006 at 11:15 AM.
