Bike Dynoed

[gwellsbury]

I am so loveing my bike again. It had been running really rough but got it back today after having new jets fitted and having it dynoed. it is so smooth now and i have seen a healthy gain. 11 bhp with me new filter and exhausts and an increase in tourque the bike has been transformed and it is amazing to ride now

[cliveyandrews]

Have you got the chart?

Mine desperately needs a proper setup, it's a touch weak - open cans, and I plan to do the airbox mod and fit an advancer too...

[gwellsbury]

O my god mine was probably worse than that before it was setup. Ill put the chart up later all i can say it was worth getting it setup the bike is just amazing to ride now

[gwellsbury]

Here is a copy of my dyno run for power and tourqe
Tourqe has been increased as well it rips your arms off now haha



Power note how bad the curve was before the dyno run now it is smooth and crisp

[Styler4077]

Clive,

Your's is very weak, normally between 12.5 and 13.5 is the normal, BMW's drop back to 15 and leaner but only when they are held at a constant speed I.E. 60 mph at a constant speed the AFR will gently drop down. But they use some smart ECU software to check for knocking, speed, throttle position,gear whilst changing the AFR.
We have nothing on our VTR's.
The line is also very odd. Will post mine up later today.

I would get it seen too sooner rather than later my self.

Gwellsbury, nice power, what mods have you done to get 109? Std ones are around 100 ATW


Styler

[gwellsbury]

Clive,

Your's is very weak, normally between 12.5 and 13.5 is the normal, BMW's drop back to 15 and leaner but only when they are held at a constant speed I.E. 60 mph at a constant speed the AFR will gently drop down. But they use some smart ECU software to check for knocking, speed, throttle position,gear whilst changing the AFR.
We have nothing on our VTR's.
The line is also very odd. Will post mine up later today.

I would get it seen too sooner rather than later my self.

Gwellsbury, nice power, what mods have you done to get 109? Std ones are around 100 ATW


Styler

I have got Viper Race cans on it and a pipercross filter. It is the filter that has made the difference it is a full race spec filter but the bike is so good to ride now its a monster.

[mik_str]

Those are very good numbers for those mods, especially the torque...... makes me want to get a Pipercross.....

[benny hedges]

badly seating inlet valves imo.
pulsing back on compression.... compresion check clive - not right that bud.
have you checked the vac lines arent perished and split?

[tony.mon]

badly seating inlet valves imo.
pulsing back on compression.... compresion check clive - not right that bud.
have you checked the vac lines arent perished and split?

If those two lines are torque and horsepower they cross over at entirely the wrong place- should be 4600 or so.
One goes up with revs, the other goes down- what are they?

[benny hedges]

tbh i dont think its possible to have a fuelling line like that and as tony said, the torque & power curves should cross lower, as in 2k lower.
i think you need to use a different dyno next time mate.... that one looks broken.
if those curves and the fuel were for real the bike would be near unrideable lol

[cliveyandrews]

badly seating inlet valves imo.
pulsing back on compression.... compresion check clive - not right that bud.
have you checked the vac lines arent perished and split?

Where do I look Benny?

Alas funds have taken a beating at the mo, as CCTs repair came to over £270 - which accounts for all my tune up savings (plus food for the month)

But any home maintenance I can do would help.

My plans are to fit a K&N/Pipercross, cut back the siamese at the exhaust join before link pipes, airbox mods (remove baffles etc) - and probably 4 deg advancer - then Dyno and Jet Kit...

[gwellsbury]

Those are very good numbers for those mods, especially the torque...... makes me want to get a Pipercross.....

I know im very happy with the figures and it has transformed the bike. The pipercross filter is what made the difference but it is a pain to set up accordin to the dyno guy i used but was worth it

[aVaTaR]

So who's your dyno guy, may I ask?

New to the VTR, and to the site - great bike, crowd, & advice. Looking to fit filter + jets & dyno tune, along with manual ccts & tps adjustment.

[gwellsbury]

So who's your dyno guy, may I ask?

New to the VTR, and to the site - great bike, crowd, & advice. Looking to fit filter + jets & dyno tune, along with manual ccts & tps adjustment.

The company i used is Motrac Racing in Ellesmere Port. The guy there is top notch really knows his stuff he helped develop dynojet kits and is a dam nice guy. He spent 8 hours on my bike because he wanted it to be perfect and it is. Must say i have to agree with you the site is a great source and as for the bike im hooked ive always had inline 4s but this is just fantastic.

[aVaTaR]

The company i used is Motrac Racing in Ellesmere Port. The guy there is top notch...

Ahh. Ellesmere Port is a bit of a blat for me - I'm in East Sussex, and considering HM Racing or Bob Farnham. I'll have to show them your dyno output & ask if they can match it

Wonder if your 'top notch guy' would share some of the settings for your bike to give a start point for mine