National level race classes

[Robert Taylor]

I spoke to andrew yesterday and he said 1 set of tyres for qualifying and 1st race, he then said he would try to only do a couple of laps in qualifying so the tyres would last....

So where does the setup time occur? This makes too big an assumption that the setup is dialed before you even get to the track...........a rather forlorn hope at best. And little hope of development laps as well.

[Mishy]

Someone needs to do a test!

Get a good rider, a standard 600 and a setup supersport 600 go to Taupo or wherever put exactly the same tyres on and do 2 15 lap sessions on each bike and document tyre wear and lap times weather conditions etc possibly repeat at a couple of tracks and there will lie your answer surely?

Cool ! You swing the budget, I'll find a willing rider and bike . . . . . . . .

or - you could go on strong anecdotal evidence and save a heap of cash

We have tested a heap of tyres and shocks on Jay's ZX6's, and some of the info I have stored has relevance to this topic. We have used Conti Race Street on several occasions, and can document the difference in lap times at certain circuits on the same day - typically about 2 seconds a lap. Also, we have twice used stock suspension followed by fitting something better on the same day. The difference at manfeild on the '07 R6 we stole with just a shock change (stolen again !) was similar, at around 2 seconds a lap, and a total absence of the pumping that had appeared after 5 laps on the stock low milage item. The difference at Taupo on the ZX6 was (perhaps) even larger, with Jay being faster in worse conditions on the TTX36.

One point not made so far regarding the use of One set of tyres per race day is that (obviously, and stated earlier) this would force riders to use less grippy tyres. What isn't clear to most is that these tyres don't cope well with very high temperature, and will "smear", which is when the compound gets above it's operating coridor and can't hold onto itself - think hot chewing gum. This is bad juju for grip, and is what causes the slimy slippery feeling of an overheated tyre. I'm not sure I would be in favour of that, particularly on high output machines that induce so much heat into the rear tyre so easily.
We saw track temps of over 45deg C over Nationals on a consistant basis, so it's a point worth considering.

[CHOPPA]

So where does the setup time occur? This makes too big an assumption that the setup is dialed before you even get to the track...........a rather forlorn hope at best. And little hope of development laps as well.

Ill do every single lap of every practice and qualifying for practice yeah and just cause i love to ride! The reason andrew said that was just to enforce the qualifying rubber rule

[CHOPPA]

Cool ! You swing the budget, I'll find a willing rider and bike . . . . . . . .

or - you could go on strong anecdotal evidence and save a heap of cash

We have tested a heap of tyres and shocks on Jay's ZX6's, and some of the info I have stored has relevance to this topic. We have used Conti Race Street on several occasions, and can document the difference in lap times at certain circuits on the same day - typically about 2 seconds a lap. Also, we have twice used stock suspension followed by fitting something better on the same day. The difference at manfeild on the '07 R6 we stole with just a shock change (stolen again !) was similar, at around 2 seconds a lap, and a total absence of the pumping that had appeared after 5 laps on the stock low milage item. The difference at Taupo on the ZX6 was (perhaps) even larger, with Jay being faster in worse conditions on the TTX36.

One point not made so far regarding the use of One set of tyres per race day is that (obviously, and stated earlier) this would force riders to use less grippy tyres. What isn't clear to most is that these tyres don't cope well with very high temperature, and will "smear", which is when the compound gets above it's operating coridor and can't hold onto itself - think hot chewing gum. This is bad juju for grip, and is what causes the slimy slippery feeling of an overheated tyre. I'm not sure I would be in favour of that, particularly on high output machines that induce so much heat into the rear tyre so easily.
We saw track temps of over 45deg C over Nationals on a consistant basis, so it's a point worth considering.

These classes are not designed to cater for someone with jays experience, ill get a top mx rider for your test rider. They wont know whats good and whats bad they will just ride it

[Shaun]

Ill do every single lap of every practice and qualifying for practice yeah and just cause i love to ride! The reason andrew said that was just to enforce the qualifying rubber rule

He said it cause he;s old like me

[Shaun]

And how would you police the suspension in a true production racing class?

EASY


Moto-Dynamix Owns them

What you saying Willis?

[Shaun]

Ill do every single lap of every practice and qualifying for practice yeah and just cause i love to ride! The reason andrew said that was just to enforce the qualifying rubber rule

You watch how many of the pussies stay in the garage if it rains in PRACTICE sessions mate, way to funny I always thought Practice was for Practice Perhaps that was just for That did not matter

[wharfy]

Ill do every single lap of every practice and qualifying for practice yeah and just cause i love to ride! The reason andrew said that was just to enforce the qualifying rubber rule

I'm an ancient "re-born" clubmans racer but I did almost every session of each of the 4 practice days at Manfield for the VMCC winter series - mainly because I NEED THE PRACTICE. It also gave me a chance to dick with the tyre pressure. Of all the money I have spent on doing this series that $400 gave the best ROI. I am not sure I would say that if I had chewed out a set of tyers each practice though.
On one occasion I did skip the last session to preserve my tyres for the race day.
Ihave been using Conti sport attacks on my Hornet ( bout 100 HP at the wheel ) The current set were new for the aborted wet round 4 and have done 5 & 6 plus Greymouth and now I am riding them to work each day.

[Robert Taylor]

EASY


Moto-Dynamix Owns them

What you saying Willis?

Hmmm, every single make and model that everyone wants to race? Dont think thats practical somehow..........

[Robert Taylor]

You watch how many of the pussies stay in the garage if it rains in PRACTICE sessions mate, way to funny I always thought Practice was for Practice Perhaps that was just for That did not matter

Got to give that to you, practicing in the pouring rain at Invergiggles a few years back ( refining a wet set up if required ) and I think you may have been the only rider on the track.

[cowpoos]

I like BIG BUTTS and I cannot lie..............

feel is paramount!!


Do not...ever forget this point!!

[Shaun]

Hmmm, every single make and model that everyone wants to race? Dont think thats practical somehow..........

Single Producton class mate ie, 1 make! 1 shock, 1 Fork set up, one rear and front wheel and tyre etc etc--Same Same Same

Way to simple? Shut up Scrivy

I understand You, as We have known each other a long time, and I am guessing/Assuming that this post of yours is meant with direct interest But

SPC means just that! Simple and a quality way to help with the feed in victims ( For all of us buisness kinda people haha) to better Quality More exspensive set up bikes for the Current SP Class.

[FROSTY:Me]

You watch how many of the pussies stay in the garage if it rains in PRACTICE sessions mate, way to funny I always thought Practice was for Practice Perhaps that was just for That did not matter

Ohh ferk does this mean U n me think alike-
Not that it did me much good but It was me on my own at levels last seasons wendsday practice.

[JayRacer37]

Someone needs to do a test!

Get a good rider, a standard 600 and a setup supersport 600 go to Taupo or wherever put exactly the same tyres on and do 2 15 lap sessions on each bike and document tyre wear and lap times weather conditions etc possibly repeat at a couple of tracks and there will lie your answer surely?

Done it man.

2006 R6 at manfeild.

STOCK stock, with RaceAttacks, 10 laps, first flier 1.12, best 1.11.9, down to high 12's or 13's after ten laps.

Ohlins rear shock, slightly lower gearing, and ten laps more bike knowledge, first flier 1.10.5, best 1.10.00, at the end, doing constant 1.10.2. With this setup by the end of the weekend I was doing 1.09.FA. This was before the resealing of Manfeild.

Jay

[wharfy]

Done it man.

2006 R6 at manfeild.

STOCK stock, with RaceAttacks, 10 laps, first flier 1.12, best 1.11.9, down to high 12's or 13's after ten laps.

Ohlins rear shock, slightly lower gearing, and ten laps more bike knowledge, first flier 1.10.5, best 1.10.00, at the end, doing constant 1.10.2. With this setup by the end of the weekend I was doing 1.09.FA. This was before the resealing of Manfeild.

Jay

That makes me feel a lot better about spending money on an Ohilns shock, I THOUGHT it made me quicker but had no hard data to back it up. Only a couple of track day's at Taupo with times from my GPS (one before and one after).
Of course - I A'INT no J Lawrence though ...