ESE's works engine tuner

[TZ350]

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TeeZees GP125 21 rwhp @ 9,000 rpm, not to sure how this one will go. Looking forward to getting back to the dyno after Taupo so I can properly try out Sonic_Vs ideas on rotary valves and header spacers.

Pictures 2 and 3 show the ducting for cooling the head, we want 26 - 28 rwhp from this engine next year.

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[jasonu]

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TeeZees GP125 21 rwhp @ 9,000 rpm, not to sure how this one will go. Looking forward to getting back to the dyno after Taupo so I can properly try out Sonic_Vs ideas on rotary valves and header spacers.

Pictures 2 and 3 show the ducting for cooling the head, we want 26 - 28 rwhp from this engine next year.

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Nice pix mate. I like the RS chasis bike in the 2nd set. The first one looks a bit porky. Do you know the weights of them all? Mine weighs 75kg wet.
Not sure if a 24mm carb will allow 26-28hp... If you get it, it will be a handful with that spindly frame and swingarm. Good luck though.

[TZ350]

Nice pix mate. I like the RS chasis bike in the 2nd set. The first one looks a bit porky. Do you know the weights of them all? Mine weighs 75kg wet.
Not sure if a 24mm carb will allow 26-28hp... If you get it, it will be a handful with that spindly frame and swingarm. Good luck though.

Do you think I could get it with a 28? my 24mm diffuser carb flows as well as a 28 racing Keihin as measured on our test rig.

The last of the air cooled Honda MT125R's were in the high 20's and they had a backbone frame like ours and they only had a cable operated disk brake on the front and...yes... 26+ hp I think the GP's will be a bit of a handfull.

MT125R parts list http://www.cmsnl.com/honda-mt125r-ro...086/partslist/

From memory the GP's are in the low 90's and the RS is in the 70's about 20kg difference.

Looking forward to seeing your bike at Taupo.

Pic's are of a Honda MT125R

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[jasonu]

Do you think I could get it with a 28? my 24mm diffuser carb flows as well as a 28 racing Keihin as measured on our test rig.

From memory the GP's are in the low 90's and the RS is in the 70's about 20kg difference.

Looking forward to seeing your bike at Taupo.

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Mine runs a 28mm RG400 flat slide that has been 'D' bored, actual is about 31mm. We tried a 34 round slide, it made the response flat with no more HP. We wanted to try a 'D' bored 32 flat slide but I left the country for overseas sex and beer.

[F5 Dave]

. . . but I left the country for overseas sex and beer.

And probably more of that horrible green Chartreuse

[TZ350]

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Team ESE are very much looking forward to that first corner crush after the start flag and the argy bargy that goes with it before the run up the hill where we clear off and (hopefully) leave the field behind....

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[jasonu]

And probably more of that horrible green Chartreuse

Na mate, that stuff is nasty. Last time I drank it I made a real c*%T of myself in public, puked on my mates bed and pissed in his wardrobe.
Never again!!!

[F5 Dave]

last time I drank that some prick was buying it for me the night before racing at Ohakune street cct, insisting I drink it or be labeled a homo, felt well de-tuned the next day. . . . however we couldn't race anything other than hungover in those days so no change to original plan.

[richban]

last time I drank that some prick was buying it for me the night before racing at Ohakune street cct, insisting I drink it or be labeled a homo, felt well de-tuned the next day. . . . however we couldn't race anything other than hungover in those days so no change to original plan.

Got half a bottle with your name on it.

[jasonu]

last time I drank that some prick was buying it for me the night before racing at Ohakune street cct, insisting I drink it or be labeled a homo, felt well de-tuned the next day. . . . however we couldn't race anything other than hungover in those days so no change to original plan.

WHAT A MEMORY! That had to be at least 11 years ago. I think that was the 1st outing for my 100. I had effed up the comp ratio and had trouble with the head sealing. It had the stock TZR rear end with a stuffed shock I paid top $s to Jebbie Bruin to fix. It started leaking while unloading from the trailer. Jimmy and Ken Steadman were there too I think. DD knocked me off around the sweeper in the back end of the track OUCH!
Who was the prick and were you labeled a homo anyway???

[F5 Dave]

Quite likely I was, - I think it was in retaliation for buying Shooters when up in Auckers for some misc night out when you got a bit messy.

yeah I think I have a pic of your bike then. I suffered a similar fate one year (so many trips there not sure if same) when my forks burst a leak when I tried to blank off the antidive (need to cut a channel).

A few years later when they ran the GP there Greenie past me down the straight in a prelim race & promptly dived under my front wheel. Never found out who paid him, but that is dedication to the cause.

Off thread topic a bit? Ah heck it didn't get to 111 pages by staying on topic.

[TZ350]

First pic is another of the Team ESE bikes, Buckets4Me's RS/GP125. This bike has been the most reliable and probably ride-able of the Teams bikes.

B4Me and John Conner ringing a bit more out of the Team bikes and the last pic is Chambers 50.

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[B.Crump]

You are decades away from needing water cooling, get it ported and going fast first, watercooling wont make it fast. the questions you are asking show you probably out of your depth

i only go 64km on the straght due to it being short and being geared down so not a lot of air going past the fins. i notice a bit of power fade so i was hopeing that water cooling would help with that but you are right i am just starting out. im porting it out at the mo using g bell tuning book cheers for the info

[bucketracer]

i only go 64km on the straght due to it being short and being geared down so not a lot of air going past the fins. i notice a bit of power fade so i was hopeing that water cooling would help with that but you are right i am just starting out. im porting it out at the mo using g bell tuning book cheers for the info

Interestingly at 30k you get quite good cooling and need to go 120k to double the cooling effect. All this air speed and cooling effect was covered earlier in this thread. It turns out that 15-45k is a very effective air speed, slow enough for the air to pickup its fill of heat and fast enough to clear the hot air from the fins, if your engine is suffering heat fade you might benefit from fitting some air ducting.

And if you really need water cooling you could just fit a thermal switch to the head and squirt water over the fins from a windscreen washer bottle when the motor gets hot.

Have you gone to any trouble to read much of this thread?
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[jasonu]

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And if you really need water cooling you could just fit a thermal switch to the head and squirt water over the fins from a windscreen washer bottle when the motor gets hot.


.[/QUOTE]

Don't you think this might pose a scrutineering issue, squirting h2o onto a race track? Maybe you could rig it to squirt sideways when someone trys to pass you...