Took the bike to the dyno.

[Pipefighter248]

Well I finally got off my lazy butt and took the bike to get it tuned. The bike has 2,000 miles, D&D bolt ons, PC3USB, and a bmc race filter. I rolled in with 152.1 HP and 94.3 TQ. Rolled out with 157.0 HP and 95.5 TQ. Do these seem like fairly good numbers for a practiclly stock bike? I am happy with the tuning. I was using dynojets map that it suggested and gained 5hp and 1 TQ with the tuning. Let me know what you think and if these numbers are good. Thanks.

 

[HOOP]

not too bad for the mods that you have

 

[Jonny Hotnuts]

Those seem fair numbers for a stock bike.
When my bike was dynoed baseline was 155.9/96.6 and with remap and akropo Ti did 165.6/99.3. Should be more HP now after getting some head work done.

Remember that HP numbers can very a good deal with elevation and temp.

 

[fstbusa]

I figured they might be a couple hp higher and maybe a couple more ft-lbs torque but then again I'm just one person.

 

[MET]

Yes good numbers base 151hp + 1-2 bolt ons plus1-2 BMC race filter plus 2 for the tune.

 

[Pipefighter248]

Thanks all for the responses, I could not remember what the baseline was. I mainly took it in to get rid of the low rpm stutter and figured I would post the numbers. If not for the increase; getting rid of the stutter was well worth it.

 

[STUNNAH]

Sounds about right...

 

[vman1300]

Those numbers seem close to where the should be.

Kevin
info@mrcycles.com

 

[Johnnycheese]

got a graph with A/F?

 

[Pipefighter248]

got a graph with A/F?

Yep, I sure do. I will have to take a picture of the sheet, because I don't have a scanner.

 

[Pipefighter248]

Here you go JC. The dyno graph.

 

[Pipefighter248]

The A/F Graph.

 

[Pipefighter248]

The A/F graph without flash, if it helps you read any better.

Let me know if it looks good.

 

[Johnnycheese]

the reason the HP went up is they leaned it out too much. you will show good numbers but a stock Busa will blow by you at high rpms.
you A/F should be between 12.8-12.9 for the street

 

[Pipefighter248]

OK JC, then a question. The higher the number on the graph the richer it is running or is it leaner? The red line is what it is running now.

 

[Johnnycheese]

Air to fuel ratio
so the fist number is parts of air to the second number parts of fuel.
14.0 is leaner than 13.0

 

[Pipefighter248]

Ok, thanks cheese. Now I understand, I always thought that higher the number the richer its running. Thank God I'm not a tuner.

So do you not think that it is tuned good?

 

[Johnnycheese]

Ok, thanks cheese. Now I understand, I always thought that higher the number the richer its running. Thank God I'm not a tuner.

So do you not think that it is tuned good?

with a usb you can map every 250 RPM so the A/F line sure is not very straight.

All your chart shows is 100% throttle were you watching it be mapped?

 

[Pipefighter248]

Yes I was there when it was done. So not very good huh?

It seems to run fine, but I know that you know your stuff. By chance do you have a map that I could try, that are similar in mods. If you notice the map that was already on there (Blue line) was not very straight either; that was the one from dynojet. It was pretty good from 5K to 8K, but the bike surged at part throttle cruising around. Do you have a map I could try. If it does real good then I would be willing to pay for it, because I know that you have a job to do and all. Thanks cheese.

 

[Pipefighter248]

JC, have you heard of the accel pump feature on the usb. Does it do any good, or do you not recomend using it. If so, then what is a good place to start toying around.