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Author Topic: Dyno results  (Read 243 times)
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Moparict
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« on: April 10, 2010, 07:53:41 PM »

Went to the dyno today.  I have converted the bike over to E85 and added S2000 injectors to the motor and leaving the secondary injectors alone.

I left the bike map alone when I added the s2000 injectors assuming that the increased flow would make up for the added needs of E85.  Well, I actually ended up pulling about 10-15% out of the map depending on throttle position and rpm.  Who knew? 

So, at 12psi on E85 the bike made 287hp and 150 ft/lbs of torque.  Not bad for a small turbo.  I will try to put up the dyno charts later.
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Moparict
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« Reply #1 on: April 10, 2010, 08:48:11 PM »


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Coryonbusa
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« Reply #2 on: April 10, 2010, 08:52:30 PM »

Congrats!
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'03 Busa, OG Stage 1 Ghetto w/Tony Finley's Secondary Upgrade.
sportbikeryder
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« Reply #3 on: April 10, 2010, 10:17:44 PM »

needing to pull fuel out with S2000's on E85 makes. sense. CBR1100XX injectors shoudl be sized appropriately for drop in, S2000 are still a little bog.

Looks like it is still very rich 8500rpm  and less.

How small is that turbo? Looks pretty small to be completely flatlining torque like that. Shoudl make for a great street turbo. It will feel like it will pull your arms off the higher you rev it.

Any reason you stopped at ~10,200rpm?
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Moparict
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« Reply #4 on: April 11, 2010, 10:07:23 AM »

needing to pull fuel out with S2000's on E85 makes. sense. CBR1100XX injectors shoudl be sized appropriately for drop in, S2000 are still a little bog.

Looks like it is still very rich 8500rpm  and less.

How small is that turbo? Looks pretty small to be completely flatlining torque like that. Shoudl make for a great street turbo. It will feel like it will pull your arms off the higher you rev it.

Any reason you stopped at ~10,200rpm?

The turbo is a 50 Trim Stage II with a .48 exhaust side made by Master Power.  I wish I would have went with a .63 hot side, but you know what they say about hind sight.  We pulled fuel relentlessly at 8K and it was still rich.  I still need to tune the transition point where the secondary injectors start also.  It will flatline the AFR at 10.0 for about 2K rpms then come up from there.  Then the tire started going and the numbers and readings went to crap.  We both felt it was unsafe to continue until I get another dyno tire.  I figured a 003 U-soft Shinko would last longer than that, but it won't.

I had my shift light set at 10,2K.  The dyno operator thought that was a "limit" rpm.  I never noticed because I was paying such close attention to AFR and TP readings.  After I looked at the charts I started laughing and explained that he needed to run the bike on up to 11K, but again, the tire was crap by then. 
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sportbikeryder
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« Reply #5 on: April 11, 2010, 06:34:07 PM »

Until you run it hard enough to make the torque start to drop off up top, I wouldn't sweat the small turbine. Right now you are pretty much perfect with that flat torquc curve up top. Th compressor you have will support almost another 200 hp if it is the same as a garret (assuming it is based on a TO4E).

I am sure you have it posted somewhere, but what seconrady controller are you using?
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Chris Horoho
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« Reply #6 on: April 11, 2010, 06:40:11 PM »

he is using a MS
and yes they are based off of the TO4E
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Moparict
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« Reply #7 on: April 11, 2010, 07:06:22 PM »

he is using a MS
and yes they are based off of the TO4E

What he said.

I am using the bike as a street/strip bike.  I rode it today and really enjoyed the ride.  No hiccups or stutters. The throttle was crisp and clean.  I've thought about putting another 2-3psi to it, but I like the bike right now and I would like to get some numbers from the track.  A bit more tuning and I think it will be spot on.
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