TZR250 3MA HYBRID (race)

[Louis]

To peak at 9500 your pipe must be over a 1000mm

I already was missing you with a answer, specially on this subject

Think we have a small surprise point here, just measured the pipe (again)
976mm start piston to end cone, peeking at 9250rpm

Perhaps the stingers are messing thinks up a bid. They are inside the belly (250mm inside)

[Edd]

Hi Louis;

The lad Paul is refering to is me and with the jackals on my 3ma track bike I hit 10500 rpm max. I used to be concerned about this but you have put my mind to ease with this post. I will post my pipe dimensions for you to get some more data. I was thinking running to rich at high rpm with bigger power jet fitted (60). Changed to a (40) power jet no diffrence over the weekend. I must say the 3ma does have some grunt out of the corners pulls like a diesel smooth with very little powerband as the power valves open. At least she stayed together after 7 sessions

Edd

[Louis]

Hello Edd,

Noting wrong with a bid lower rpm, will keep the engine healthy longer.
When the engine is happy the rider is happy
I do belief you are riding there for fun, not for the price money
Always place the fun factor at frond, that will hold the both off you happy (engine and rider)

Have quickly measured the jackals that I have lying around here.
Came at 928mm (start piston end cone)
This run is with the jackals, (peeking just a touch over 10.000rpm)


Think you will be close to that.

[Paul]

just measured my coker pipes
must add flange to piston, total 890
no dyno as yet but bike revs right through to 13000 on the clock

[Louis]

This could be interesting Paul.

890mm total length.
If my thoughts are correct, the pipe's could peek at around 11.000rpm

Most off the time tacho's do overread a bid, specially on the higher revs.
So the 13.000rpm you see could probably be around 12.000/12250rpm real time (witch is high)

Peek power is something else than the reving the engine up to Max
For example:
The Marlboro bike peeks at 10.000rpm but I can pull it futher to 11.150rpm (witch is close to 12.000rpm on the tacho)

Im interested where your bike peeks, when do you think you can dyno it

[Paul]

dyno's are a problem in Durban Louis
expensive and pretty useless, either computer blown or the whole thing is down, even then they are never calibrated, to the best of my knowledge.
i am pretty good at setting a bike up the old fashioned way, so i don't lie in bed crying about it.
probably wont go on a dyno for a long time, zoomzoom has kind of disappeared off the bike scene, but he is 550Km away!
i would love to have my own dyno, like you

[Louis]

Don't worry Paul. It was just a idea.
I thought you had a dyno somewhere close to you.
Driving 550km for a couple off runs is something I wouldn't do either.

Cheers

[EEKNOWS]

Anywhere near a drag strip? A drag strip is a dyno, also if you have a smartphone you can get the dynolicious app and that will give you a pretty accurate reading. I did read somewhere a 600 odd HP car was 10hp out when put on a inertia dyno.

* now available for Android 

dynomaster is another
http://dynomaster.trackaroo.com/web/dynomaster

[Louis]

Here you have one that uses the rpm signal.


Tape the unit on the tank, connect the 12v plug, and inductive clamp on the spark plug cable.
And off you go
http://www.dynoplus.co.uk/roaddyno.shtml

[Paul]

Here you have one that uses the rpm signal.


Tape the unit on the tank, connect the 12v plug, and inductive clamp on the spark plug cable.
And off you go
http://www.dynoplus.co.uk/roaddyno.shtml

wow, where are the price and contact details on the website? i am interested

[Edd]

Hi Guys;

My Jackal pipes measure 908mm in length with drop off at 10500.

Edd

[tzr-v4]

Or this android app is very good.
http://www.siphorsepowerdyno.de/siphorsepowerdyno_en/home.html

Not tested but I suspect that the developer is the one that has made the gsf_dyno
http://atom007.heimat.eu/tmt/gsf_dyno.html

[Louis]

wow, where are the price and contact details on the website? i am interested

Now you saying it strange, can't find any info on that to
Just googled roaddyno, and this popped up

Not tested but I suspect that the developer is the one that has made the gsf_dyno

Yes, have seen that one to.

But it looks like its a bid more work, the other one seems to be plug and play.
Strange nothing can't be found how to

[epa police]

That would be perfect for my rolling road