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March 5th, 2018, 09:40 PM   #1
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Fe570 on the dyno

G’day Guys,

Got the 570 back from the dyno.

59.5 hp. Akro without insert, opened up airbox by cutting up the seat and shrouds, 450 airbox.

The green line is with the seat removed, so it pays to relieve the airbox.

Look how the remap performed against the Vortex.
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March 6th, 2018, 12:32 AM   #2
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So you never tried it with the insert as comparison? Oh I was curious about that
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March 6th, 2018, 01:06 AM   #3
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Originally Posted by jon andersson View Post
So you never tried it with the insert as comparison? Oh I was curious about that
I would have liked to Jon. Also I would have liked to try the EJK piggyback as well. Pushed for time and dollars mate.

A fella out here who does remaps has said the best map is with the large Akro insert. At a guess, I tend to think that the insert would have more of an effect on torque ie good torque curve at the expense of HP.
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March 6th, 2018, 04:38 AM   #4
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Originally Posted by Alan View Post
Look how the remap performed against the Vortex.
From the timestamp it looks like this pull was done on its own?
Would have been nice to see the remap box right after or in the middle of the other pulls to establish the testing environment is identical between the pulls, such as heat soak and tire bite etc.
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March 6th, 2018, 10:04 PM   #5
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Torque figure ?
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March 7th, 2018, 01:57 AM   #6
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Originally Posted by sidetrack View Post
Torque figure ?
Nuh. Wish.
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March 7th, 2018, 04:45 AM   #7
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Not as convenient but you should be able to plot a rough torque curve as hp is calculated from the measured torque.
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March 7th, 2018, 06:14 AM   #8
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torque=hp*5252/rpm. If you know the gearing used on the dyno for road speed maybe you can calculate it.

Last edited by funmachines; March 7th, 2018 at 06:16 AM.
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March 7th, 2018, 10:40 PM   #9
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Originally Posted by Alan View Post
At a guess, I tend to think that the insert would have more of an effect on torque ie good torque curve at the expense of HP.
I have done many tests on this. With correct diameter (ie 35-36mm) for around 600cc engines, there is no loss or gain it just kills the noise by around 3db, which is a lot on a logarithmic scale.
The doma I use on the tuned 570 conveniently came with the good one in it at 35mm and as mentioned above it doesnt change the power just kills the noise, the tone is still rumbling, very nice
Thanks from Alan

Last edited by TomTom; March 7th, 2018 at 10:43 PM.
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March 7th, 2018, 11:21 PM   #10
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Originally Posted by TomTom View Post
I have done many tests on this. With correct diameter (ie 35-36mm) for around 600cc engines, there is no loss or gain it just kills the noise by around 3db, which is a lot on a logarithmic scale.
The doma I use on the tuned 570 conveniently came with the good one in it at 35mm and as mentioned above it doesnt change the power just kills the noise, the tone is still rumbling, very nice
Thanks Tom, good info.

Any change regarding torque?
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