ESE's works engine tuner

[Fooman]

The material depends upon the application.
Bronze is quite "strong" and can be used to create a complete insert, or just bands pressed in.
Copper is softer than poo so wont hold its shape, but has better thermal conduction.
I believe the best setup would be a combination, but always keep in mind about boundary joints forming a big barrier to heat transmission.

Generally, the more pure the alloy, the better the thermal conductivity. As noted, the more pure the alloy, the weaker it is.

Bog std copper (unalloyed) has a thermal conductivity of ~380 W/m/K
8% Aluminium bronze - 70 W/m/K
5% Tin Phospher bronze - 80 W/m/K
Al/Ni/Fe bronze - 38 W/m/K
357 Al casting alloy (bit of a guess at a typical cast alloy) - 152 W/m/K
1100 (99% pure Al) billet (strong as mashed spud) - 221 W/m/K

If you want to improve the heat transfer over the boundary, use an insert with a greater thermal expansion than the body of the head - the additional pressure at the interface improves thermal conductivity. There may be an issue with thermal cracking in the head however...


FM

[husaberg]

.

The 1987 Honda RS250R had the ATAC system ........... its got to be worth a try in a Bucket

Nothing to do with your post, but I was thumbing through an old Mag and came across this.
Well whats so special other than it's pretty you may ask.
Just note the updraft on the carbs.
Wobbly alluded to it earlier on and it makes a lot of sense for a disk valve engine.
Sorry it's black and white.
I always wanted to do my Wolf up to look like it (even though I don't like Suzukis that much)

[ac3_snow]

wow, twelve speeds. and a powerband about 800rpm wide!!

[F5 Dave]

800 rpm?! Luxury.

[husaberg]

wow, twelve speeds. and a powerband about 800rpm wide!!

The interview with Hugh Anderson featured earlier in the same magazine.
I am pretty sure he would be New Zealand’s most successful ever motorbike Rider.Well Maybe Ivan Maugher fans would disagree.
But With 4x world championships 2x50 and 2x125 gp, plus 19 national championships and 2x IOM wins as well.

He said as Dave remarked rather toungue in cheek, 800rpm was indeed a luxury, It was most often 500rpm and 14 speeds on the 50cc.
The 125 was a 10 speeder 135mph (217kph) and 170 pounds (77kg).

Hugh also achieved this inspite of being 5"9 and weighing 11 stone so he wasn't a wee fellow like Dave is.
He was also quite successful as a mx rideras well as a grass track and was even picked to represent England in the motor cross de nations.

A genuine nice guy too. from my limited experiences with him.

Anyway back to buckets got $1 r1 fairing and seat, will chop to suit.
Should be getting materials for frame tomorrow.
I wonder if the mrs will notice her electric bread knife is missing?

[TZ350]

The interview with Hugh Anderson featured earlier in the same magazine.

Any chance of posting the interview with Hugh.

[jasonu]

800 rpm?! Luxury.

Yeah Dave, wider than most of your bikes...

[husaberg]

Any chance of posting the interview with Hugh.

A bit out of order sorry.They go 1,4,2,5,cover,3
I do note It leaves out the BOT rides in NZ on the Mcintosh Egli vincent against the japas and dukes and the rides on the first brook henry v2 with the belt drive bevel twin as well as what he did post 89 of course.
Note the megaphone stinger on the first page of the artical before Degner defected with all the MZ know how.
Suzuiki even stole the traditional MZ colour scheme So MZ changed theres to green for Envy.
http://2strokebiker.blogspot.com/2010/01/1968-suzuki-50cc-grand-prix-roadracer.html

http://www.suzukicycles.org/history/...960-1967.shtml

http://www.yamahaclassictwostrokes.nl/index.php?option=com_content&task=view&id=22&Itemid=32
http://www.yamahaclassictwostrokes.n...amaha-125-ra31

[TZ350]

Thanks for the Hugh interview.

Very Excited, I have just found out that the Auckland Motorcycle Club will accept entry's from F4 Buckets to run with 250 Prolights and 150 Street Stocks in a combined class at Hampton Downs and Pukekohe.

Dates: Hampton Downs 16/10, Pukekohe 13/11, Hampton Downs 4/12, Pukekohe 3/4.

After that dreadfully wet meeting a while back I have unfinished business at Hampton and will be there on the 16 to chase a few of those 250 4's and 150 street strokers.

Hopefully one or two other Bucketers will come along and join in the fun.

[richban]

Thanks for the Hugh interview.

Very Excited, I have just found out that the Auckland Motorcycle Club will accept entry's from F4 Buckets to run with 250 Prolights and 150 Street Stocks in a combined class at Hampton Downs and Pukekohe.

Dates: Hampton Downs 16/10, Pukekohe 13/11, Hampton Downs 4/12, Pukekohe 3/4.

After that dreadfully wet meeting a while back I have unfinished business at Hampton and will be there on the 16 to chase a few of those 250 4's and 150 street strokers.

Hopefully one or two other Bucketers will come along and join in the fun.

Hey thats great news. I will try make one of those dates. Never ridden at HD. Might need to develop one of them 10 speed gear boxes.

Imagine one of your more peaky engines in an RS with a 10 speed box it would always me on the power. Might have to mover up to F3 then. Hummm 10 speed with a quick shifer. 1st neh neh neh neh 6th nah neh neh 10th. Maybe 8. Getting cramp just thinking about it.

[Yow Ling]

Thanks for the Hugh interview.

Very Excited, I have just found out that the Auckland Motorcycle Club will accept entry's from F4 Buckets to run with 250 Prolights and 150 Street Stocks in a combined class at Hampton Downs and Pukekohe.

Dates: Hampton Downs 16/10, Pukekohe 13/11, Hampton Downs 4/12, Pukekohe 3/4.

After that dreadfully wet meeting a while back I have unfinished business at Hampton and will be there on the 16 to chase a few of those 250 4's and 150 street strokers.

Hopefully one or two other Bucketers will come along and join in the fun.

Wow, didnt think Id see that in my lifetime, was thinking they would have fixed Chch before they let buckets run on a full track. Now you guys will need to spend up big on sprockets

[Henk]

They ran buckets at HD and Puke last year. HD is a long lap on a bike set up for kart tracks, you certainly can't make up even the smallest power deficit with corner speed they way you can on the short tracks.

[bucketracer]

HD is a long lap on a bike set up for kart tracks, you certainly can't make up even the smallest power deficit with corner speed they way you can on the short tracks.

Bigger front sprocket?

A while back, before 250 Prolights TeeZee, Chambers and Buckets4me took an early ESE 18hp Suzuki GP125 to a couple of Puke race meetings. They buzzed around at 11,000rpm all day, I think they were doing 1:32 to start with and got down to about 1:23 but there really was no race class suitable for them then.

The Auck club and Chris C had made an effort to include them, at the time it didn't work but now with 250 Prolights and Street Stocks there is a class that F4's can run in if they want to.

[TZ350]

.
Does anyone know the midpack and front runners times for Prolights, StreetStocks around Pukekohe, Hampton Downs and Taupos new track is?

[Ned Kelly]

Thanks for the Hugh interview.

Very Excited, I have just found out that the Auckland Motorcycle Club will accept entry's from F4 Buckets to run with 250 Prolights and 150 Street Stocks in a combined class at Hampton Downs and Pukekohe.

Dates: Hampton Downs 16/10, Pukekohe 13/11, Hampton Downs 4/12, Pukekohe 3/4.

After that dreadfully wet meeting a while back I have unfinished business at Hampton and will be there on the 16 to chase a few of those 250 4's and 150 street strokers.

Hopefully one or two other Bucketers will come along and join in the fun.

This could be a good chance to run the new engine in the new RS chassis. Really stretch it legs. Really keen to run HD this year. Bugger the first round is the same weekend of the Motogp at Philip Island. Oh well.