New 600 production class

[slowpoke]

Awwww, ya gotta love a good cheating effort! There's a long and glorious history of it throughout motorsport and reading about Smokey Yunick's brilliant efforts at reading between the lines in NASCAR to Rob McElnea's EXUP 1000 powered OW01 when they got sick of being beaten by the Kawasaki ZXR750 in BSB puts a smile on your face.....at least a few years after the fact anyway.

[roogazza]

Awwww, ya gotta love a good cheating effort! There's a long and glorious history of it throughout motorsport and reading about Smokey Yunick's brilliant efforts at reading between the lines in NASCAR to Rob McElnea's EXUP 1000 powered OW01 when they got sick of being beaten by the Kawasaki ZXR750 in BSB puts a smile on your face.....at least a few years after the fact anyway.

The gains from cheating are usually fairly small (although I know of a few very clever blokes), and you still have to be able to take advantage of the mod as a rider. Two strokes were fun years. G.

[slowpoke]

and you still have to be able to take advantage of the mod as a rider. G.

Hence I never bother, despite some beer fuelled moments of brilliance....

[Shaun]

well how about a rider that used to put a GSXR600 gear box into his GSXR750 a few years ago, giving it like a race box ratio set up???

That would have been a huge gain to him

[Shaun]

Yeah and the much talked about cheating that went on in 250 production stopped when that class was canned,Aye "Yea Right".I know of 2 bikes currently running in 600sp that definitely wouldnt pass a thorough tech check and the funny thing is,With all the 250s racing back in the 80s in 250 prod I only ever remember 1 actually being caught cheating,Fucken lot of talk in those days,But no money where the mouth was action,Funny that.




Oh and it was chrome that was peeling not Nickasel,The japanese factories werent using nickasel back then and if you read the rulebook of the day,You were permitted to remove "loose dags" from the port area was how the rule went LOL

I probally know the same 2 you are talking about Billy, as I know a person who works in a certain machine shop who tells me what is bought in and what is done

But it would actually be very hard to messure a Block that has been machined, not as hard as the head machine work though

[roogazza]

well how about a rider that used to put a GSXR600 gear box into his GSXR750 a few years ago, giving it like a race box ratio set up???

That would have been a huge gain to him

Yep sure, I was more thinking about guys takings a couple of mm off here and there as compared to the famous Dicky Lawton. (araldite!) G.

[wharfy]

Yep sure, I was more thinking about guys takings a couple of mm off here and there as compared to the famous Dicky Lawton. (araldite!) G.

I'm no engine tuner, but I managed to follow most of this thread, right up until now.. How does one use Araldite to gain a "competitive advantage" from a motorcycle ?

[Rcktfsh]

I'm no engine tuner, but I managed to follow most of this thread, right up until now.. How does one use Araldite to gain a "competitive advantage" from a motorcycle ?

Dicky Lawton (NZ greatest ever tuner) used araldite to experiment with port shapes in 2 stroke barrels, easy to add or take out before settling on a final design. I remember seeing a TS400 barrel where the transfer ports extendedout further than the original barrel would heve been. After Keith Turner finished runner up in the 71 500 championship to Ago on a Lawton engined Steve Roberts framed TR500 which was considerably faster than the factory TR 500 Suzuki dispatched a team of engineers to deepest darkest Newtown to find out why!

[roogazza]

You're showing your age there Rcktfsh ! Clever stuff wasn't it ? I had a go on a production T500 of his, at the time very fast. (couple of mates rode for him). G.

[Billy]

Dicky Lawton (NZ greatest ever tuner) used araldite to experiment with port shapes in 2 stroke barrels, easy to add or take out before settling on a final design. I remember seeing a TS400 barrel where the transfer ports extendedout further than the original barrel would heve been. After Keith Turner finished runner up in the 71 500 championship to Ago on a Lawton engined Steve Roberts framed TR500 which was considerably faster than the factory TR 500 Suzuki dispatched a team of engineers to deepest darkest Newtown to find out why!

Yip,Very clever man Dick Lawton.I probably inadvertently helped build that bike and many of the other Lawton specials,As at the time those bikes were being developed,I was doing my apprenticeship as a panelbeater in the Hutt and our tech tutor was none other than Steve Roberts and the Tech was just up the hill behind Lawton and Boyle,Consequently much of our welding testing at block course and night school was on expansion chambers and frames for Lawton and Boyle.That Bloody Roberts was probably charging Lawtons for doing the job and getting paid for teaching us at the same time,Still he would have had fix all the cockups we made anyway LOL.There was some very interesting machinery came out of that workshop,From Keith Tinneys TM400 and Peter Lawtons T20 based beach racers too Geoff Perrys factory conquering specials

[roogazza]

Do you remember 'The Hinge' and the little 350/3 that was originally a GT380 ? The Hinge was a beast, a T500 with chambers and one of his motors. Gaz.

[wharfy]

Dicky Lawton (NZ greatest ever tuner) used araldite to experiment with port shapes in 2 stroke barrels, easy to add or take out before settling on a final design. !

Ahhh...... The pre-cursor to computer modelling

[Billy]

Do you remember 'The Hinge' and the little 350/3 that was originally a GT380 ? The Hinge was a beast, a T500 with chambers and one of his motors. Gaz.

Yip,Definitely remember the little desleeved and watercooled 380 3.Vividly remeber Dale Wylie battling it out with Ginger Molloy on the Aermacchi 350 and Trevor Discombe on a TZ350 at Onekawa.The little triple seized and they quickly ripped it too bits and blasted the swarf out of the cases with a firehose,Reassembled it and it was back out for the next race.Last saw that bike a Co-op Honda in Palmy in about 88,It belonged to Geoff Sell.As far as the hinge goes,That description matches just about every T500 Suzuki I ever rode.Still remember the late Grant Russell turning up to Gracefeild with a waterbus and racing it in open proddy,What a fucken legend,Even the old red/white Mach 111s never wobbled anywhere near as bad as that thing

Im thinking we might have gotten a little off the beaten path here LOL

[gixerracer]

only because you whoops { i ment the said rider } was good enough to get the most from it

well how about a rider that used to put a GSXR600 gear box into his GSXR750 a few years ago, giving it like a race box ratio set up???

That would have been a huge gain to him

[Shaun]

only because you whoops { i ment the said rider } was good enough to get the most from it

Said rider indeed mate, I never raced a raced a 750 in the SB Seriers years back