Fellow FSAE'ers! I come asking for gifts

[Spetsnazos]

Could you guys point me to a location where I could gather various Torque curves for various FSAE vehicles. I'm looking for decent FSAE teams that run various engines such as the WR450, CBR600, R6, V-twins(Aprilia?)

Please before you tell me to use Google, I've already done that and I need FSAE specific torque curves not what the stock engines produce. I am willing to share a R6 or WR450 torque curve if you need it. I am using this as part of a lap sim.

TLDR Version:
-Need your torque curve
-Know a place to get an FSAE torque curve?
-Sharing is caring


No Hayabusas pls.

[Jan_Dressler]

Only some quite old ones...
The dyno results of FSG 2008 are published on their web site here:

http://www.formulastudent.de/f...G08_Dyno_Results.xls (http://www.formulastudent.de/fileadmin/user_upload/all/2008/Results/FSG08_Dyno_Results.xls)

Note that not all the teams were on the dyno.

EDIT: You have to figure out which team used which engine yourself http://fsae.com/groupee_common/emoticons/icon_biggrin.gif
Delft had the WR450, TU Graz: R6, Uni Karlsruhe: CBR600 PC35, Darmstadt: GSX-R 600, for example.
But I am not very sure what you want to learn out of that curves... You will see that Uni Karlsruhe had more midrange torque with the PC35 than Darmstadt with the GSX-R, whereas Darmstadt had more power in the higher rev range.
Is that due to the engines? Don't think so... The 600 cc fours are all quite similar. The differences are due to intake- / exhaust design, ECU mapping and so on...

Jan

[Spetsnazos]

Originally posted by Jan_Dressler:
Only some quite old ones...
The dyno results of FSG 2008 are published on their web site here:

http://www.formulastudent.de/f...G08_Dyno_Results.xls (http://www.formulastudent.de/fileadmin/user_upload/all/2008/Results/FSG08_Dyno_Results.xls)

Note that not all the teams were on the dyno.

EDIT: You have to figure out which team used which engine yourself http://fsae.com/groupee_common/emoticons/icon_biggrin.gif
Delft had the WR450, TU Graz: R6, Uni Karlsruhe: CBR600 PC35, Darmstadt: GSX-R 600, for example.
But I am not very sure what you want to learn out of that curves... You will see that Uni Karlsruhe had more midrange torque with the PC35 than Darmstadt with the GSX-R, whereas Darmstadt had more power in the higher rev range.
Is that due to the engines? Don't think so... The 600 cc fours are all quite similar. The differences are due to intake- / exhaust design, ECU mapping and so on...

Jan

Perfect! I am doing some engine comparisons and this is pretty much exactly what I was looking for.

Now time to figure out which school ran what http://fsae.com/groupee_common/emoticons/icon_smile.gif. Any idea where I can get an event guide from that year/competition?

[Jan_Dressler]

http://www.formulastudent.de/e.../event-2008/results/ (http://www.formulastudent.de/events/event-2008/results/)

Left in the screen:
- Awards
- Gallery
- Rules & Important Documents
- Registered Teams
- Results
- Schedule
- Officials FSG08
- Visitors / Location plan

Google is your friend...

[Boffin]

Our past two year of our CBR600RR.
Peak, 70ish kw, 70ish Nm

xxx

Happy to give more specific's if you want

[Drew Price]

Just comparing torque curves from differently prepped cars is not comparing the 'engines,' it is comparing the entire engine system since everyone has designed their own intake and exhaust, EFI package, tuning is different, and in many cases internals like cam geometry and such are different too.

Might be useful as an intellectual study, but just because some team has some given torque curve for their CBR does not necessarily mean that is what your team will get out of it.

I'm sure you know this Spetz, but for anyone newer reading this, take with a grain of salt.

[Spetsnazos]

Originally posted by Jan_Dressler:
http://www.formulastudent.de/e.../event-2008/results/ (http://www.formulastudent.de/events/event-2008/results/)

Left in the screen:
- Awards
- Gallery
- Rules & Important Documents
- Registered Teams
- Results
- Schedule
- Officials FSG08
- Visitors / Location plan

Google is your friend...

I'll fish around a bit more on that site to see if I can find that event guide(the FSAE West one had a brief description of the team with general vehicle parameters).

Thanks man!

[Spetsnazos]

Originally posted by Drew Price:
Just comparing torque curves from differently prepped cars is not comparing the 'engines,' it is comparing the entire engine system since everyone has designed their own intake and exhaust, EFI package, tuning is different, and in many cases internals like cam geometry and such are different too.

Might be useful as an intellectual study, but just because some team has some given torque curve for their CBR does not necessarily mean that is what your team will get out of it.

I'm sure you know this Spetz, but for anyone newer reading this, take with a grain of salt.

Oh ya I'm fully aware that the torque curve is relative to tuning, intake, exhaust and fuel. I was planning on using the better teams as part of my comparison study, but of course it is all relative to what event they tuned for(Acceleration/Skidpad/Auto-X/Endurance).


Either way, its better than me extrapolating numbers off a pixelated graph...or a stock R6 tune.

PS: I saw one of your spies in our school wearing a NU shirt...his camouflage skills could use work http://fsae.com/groupee_common/emoticons/icon_smile.gif

[Rex Chan]

Here is a power/torque curve for the 2010 Melbourne Uni engine system (CBR600RR): http://www.flickr.com/photos/rexchan/5964762438/

http://www.flickr.com/photos/rexchan/5964762438/

It is actually from Swinburne's chassis dyno, so results are somewhat comparable, though we run E85 and they use petrol/gasoline. We also have quite different intake systems. More details are in the flickr.com photo description. I am also happy to answer any questions, either here or via email.

Just a note when you mention torque curves are dependant on what you tune for: we (Melbourne Uni) switched to E85 in 2009, and damaged (beyond repair) one engine in the process, due to excessive fuel entering the oil. As a result, it was tuned in 2010 for minimum excess fuel: lambda 1.00-1.05 for lower MAP, and 0.95-0.90 at 100MAP. Spark timing sweeps were conducted at many sites across the RPM-MAP table, and interpolated by hand.

Another point of difference is that we tune by looking at lambda (for fuel) and MBT (for spark timing), whereas some people tune until they get the power curve they desire. It's just different ways of doing things.