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Old 02-09-06, 10:51 AM
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Dyno Woes

Could you guys please comment on this with whatever technical/experience you may have that may shed some light...

A dyno of a modded single turbo 13B yields 367 hp and 575 lb-ft of torque.

a) have you ever seen ANY 13B with torque this far off from hp?
b) is this physically possible given the mechanics of a rotary engine
c) what could possibly be setup incorrectly on the dyno to yield this result (since it is obviously flawed in my opinion)

Thanks in advance,
Amir
Old 02-09-06, 11:00 AM
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maybe its one of those dealios where divide the torque number in 2?
Old 02-09-06, 11:03 AM
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Originally Posted by wankeldude
Could you guys please comment on this with whatever technical/experience you may have that may shed some light...

A dyno of a modded single turbo 13B yields 367 hp and 575 lb-ft of torque.

a) have you ever seen ANY 13B with torque this far off from hp?
b) is this physically possible given the mechanics of a rotary engine
c) what could possibly be setup incorrectly on the dyno to yield this result (since it is obviously flawed in my opinion)

Thanks in advance,
Amir
a) No
b) No
c) I don't know exactly, but someone had this same problem fairly recently. Do a search, I think it had something to do with the dyno settings.
Old 02-09-06, 11:44 AM
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Do you think this may have something to do with the Rotary engine's real rpm vs stated rpm causing the "divide by 2" torque issue?
Old 02-09-06, 11:51 AM
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https://www.rx7club.com/showthread.p...ht=dyno+torque
Old 02-09-06, 12:02 PM
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Thank you very much for the link afterburn! I appreciate it.
Old 02-09-06, 12:12 PM
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i was right!
Old 02-09-06, 12:28 PM
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Damn skippy you were right. thanks again everyone (you too phatman)
Old 02-09-06, 12:39 PM
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woo hoo!

not bad numbers either, whats the setup and PSI? u gotta tell us all that once u get a car dynoed
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