Dyno Day at Red Baron (Saturday 29th)

[TwoSeven]

If I'm going to go near a dyno, there are the basic readings that need and I only tend to use dynojet dynos (personal preference is the 250).

The bike needs to be warmed up - so should be showing at least 80C water temp (or whatever the correct temp is for your machine). No point in going near the dyno if it isnt. Many bikes have special warm up procedures, pays to go thru them.

I expect the operator to do a couple of runs first, these are likely to be 4th gear or something. They are generally calibration runs.

I then do a gas analysis (air/fuel) run, showing all throttle settings - its needed to tell me about the power characteristics and any tuning I could do - for example jetting. I might do this in each gear, and I might also ask for different loads to be simulated.

Ideally I like to get a run done in each gear (rpm vs power). Its important to do it in each gear and use the same scale. I use these to work out your gearing and shift/gear change points (learning how to create overlap charts is important). For me, when I run a bike up - this is the most important one I need. It literally tells me how to ride the bike.

I like to also do a throttle response test as well from different throttle positions, but its only important if you are fine tuning a carb. To me, ballpark is good enough, I can tell often from the engine sound, if there is lag or over-run that obvious, then I'll take a look at the carbs more closely.

Also, take a memory stick and ask for the runfiles. You can use a dynojet reader to examine different info - you pay for the data, so may as well use it.

Finally remember that these type of dyno's are for tuning the whole bike (including final drive), not the engine. If you want to do specialist engine tuning, really should mount the engine in an engine dyno that runs off the crank or front sprocket (yes, there is a difference between a chassis dyno and engine dyno).

Thats my tuppence.

For show and go days, really you probably just want an all gear run done so you have an idea what the bike is doing - rpm, torque and power are good enough. A good dyno shop will take the time to explain the readings to you as well. Especially if they have taken readings from other bikes that are the same make/model/year.

[White trash]

Firstly, I wouldn't give Red Baron the steam off my shit.

Secondly, anyone who throws thirty bucks at a Dyno operator just to see what number the computer spits out after their bike's spun a roller, has just chucked thirty bucks away.

You're gonna do that, give me the money, I need it.

[Ixion]

Good to see someone knows what a scow is.
Bet ya nobody here (except Motu old fart) knows about scows and how they plied their trade on Aucklands upper harbour for many years. You can still find one out and about.. it does tours from the Maritime museum in the Viaduct. It called the Ted Ashby. It wasnt a garbage scow I dont think.. used to bring supplies up to riverhead from Aucland.

My great grandfather (and his father) used to skipper one of those. And Mrs Ixion's great grandfather another.

And my great great great grandparents, and their parents (I think - plus or minus a great) used to build them up at Mahurangi . Logged the kauri behind the harbour , bullocked it down to the foreshore and built it into boats on the beach.

The Ted Ashby was a very late scow. The scows were a distinctively New Zealand design but there were also a lot of local built and skippered vessels of more traditional type (barks, schooners, brigs etc) plying the waters in the old days.

There would be very few people now who can remember masted ships tied up down by the lighter basin

[Ixion]

The Ted Ashby is a replica, built to the old methods and plans.. but with todays MSA requirements built in too.

Ah, OK. A replica of a very late scow.

[Motu]

There used to be an old abandoned scow on Blackpool Beach when I lived on Waiheke Island,used to go for a walk when the tide was out and let the kids clamber about over it.Very wierd construction,a hell of a lot of what you would take as redundant timber,they were built very strong as a shallow draft flat bottom boat that would be grounded on the beach and them over loaded and floated off.A scow was a real boat.

[White trash]

I might do this in each gear, and I might also ask for different loads to be simulated.

.

Explain to me, if you will, how you can simulate different loads on a rolling road dyno?

[Ixion]

There used to be an old abandoned scow on Blackpool Beach when I lived on Waiheke Island,used to go for a walk when the tide was out and let the kids clamber about over it.Very wierd construction,a hell of a lot of what you would take as redundant timber,they were built very strong as a shallow draft flat bottom boat that would be grounded on the beach and them over loaded and floated off.A scow was a real boat.

Yeah. They'd run them aground just after high tide, let them sit as the tide went out, then shovel them full of shingle, load them with cattle , whatever. Then wait for the rising tide to float them off.

Not pretty boats but real workers. Beauty is in the eye of the beholder, I prefer their looks to the floating gin palaces of today. Honest proletarian vessels, doing an honest days work for an honest days pay. Like the men that crewed them.

The William Daldy is another honest old boat . Auckland harbour Board steam tug, does excursion runs around Auckland harbour. Anyone who gets the chance, it's a REALLY good outing for anyone with a love of machinery.

[TLDV8]

The William C Daldy is another honest old boat . Auckland harbour Board steam tug, does excursion runs around Auckland harbour. Anyone who gets the chance, it's a REALLY good outing for anyone with a love of machinery.

Triple expansion boilers..one of my last jobs at Titan Marine was to bulldoze some new ribs for the William C Daldy when the hull plates were being replaced as sections.

[R6_kid:Me]

alright you swines stop stealing my thread!!!

I will be taking a final list at 9am on Tuesday so if you arent in by then you will probably be missing out!

So make sure you get your name on the list (see first post in thread for link)

[White trash]

Honest proletarian vessels, doing an honest days work for an honest days pay. Like the men that crewed them.

Save it for www.boring_old_boats.com/forums grandad! This here thread's about raping the shit outta ya sports bike on a dyno.

[R6_kid:Me]

Save it for www.boring_old_boats.com/forums grandad! This here thread's about raping the shit outta ya sports bike on a dyno.

cheers ya funny cunt! Gonna steal your neighbours bike again and come along?

[bugjuice]

i'll pop by.. probably check out my bike too.. if I'm not needed at Puke for MR..

[TwoSeven]

Explain to me, if you will, how you can simulate different loads on a rolling road dyno?

Ask if they have the load simulation package installed I guess.

[R6_kid:Me]

This is the list at current? I also have one person extra via PM, if you want to have your name added you need to post here before Midday today or you will miss out.

gareth_d
tristank
SuperDave
Slingshot
swanman
FROSTY
Avignon
limmy
Madguitarist!
bugjuice
bjme

[bugjuice]

All you bastards should be at White trash's bloody endurance race at Mt Wellington. Dont worry buggy MR will be on a much smaller bike than normal on Saturday. WT.. you got a lap scorer yet?

the race is in the afternoon, isn't it..?? Which means that we go to RB in the morning, then we all head to Mt Welly in the afternoon, in the correct order of RWHP..