ESE's works engine tuner

[crazy man]

Agreed.

Chasing top end power does tend to turn your nice liner 4 stroke into a bit of a 2 stroke. I am sure there is a happy place. It's cost and compromise. And riding for sure. I am 3 hp down on my old engine but still doing the same lap times. Kart track that is. In the GP I couldn't even hold in a slip stream with Dave or Andrew A. Needs them ponies there for sure.

l thought you could not hold a slip stream because of that cash they sliped you lol .what kind of power are you getting out of your engine? and who's dyno

[goose8]

Yes I think team shnanny could be one to watch next gp QUOTE=richban;1130320623]Yeah after seeing Dave M on Avalons 125 at HD he was my favorite for the GP. Also Avalon is super fast these days. I was thinking a fight between them for the win. Also if Gaz gets a few more HP he is a weapon for sure. Plenty of talent out there. Its great that F4 is attracting these great riders. North island short track series next year will be a cage fight.[/QUOTE]

[richban]

l thought you could not hold a slip stream because of that cash they sliped you lol .what kind of power are you getting out of your engine? and who's dyno

Old faithful 22 / 23

Dead one 25 / 26

Motormart Dyno dynamics dyno.

Depending on who you talk to a dynamics dyno will read lo. But some people say hi. Personally I don't care. The faster engine also had a lot more lo end grunt and more top end as well. Oh how I miss the power.

[TZ350]

Well now that the numbers are out I can post the dyno graph, 25hp and 6,000rpm range.

Also, now that Rich knows the formula for 25hp, I am betting he will get it reliable too.

There can be no doubt that other FXR's have crossed the 20hp barrier and are following closely in his foot steps.

Still I think the 2-Stroke boys would be pretty safe building low 20's engines. I mean, what could go wrong with that approch?, as they could always try to make up any hp short cummings with superior riding skill.

[TZ350]

I think I will keep working on getting my 30+ hp engine reliable .....

[bucketracer]

Nah it will be 28hp high reving 4 strokes that go around corners fast.

Old faithful 22 / 23 Dead one 25 / 26 Motormart Dyno dynamics dyno.
The faster engine also had a lot more lo end grunt and more top end as well. Oh how I miss the power.

i can't claim responsibility for this engine, but (so far) the highest power i have seen from this capacity with a 24mm carb is this series of runs.

What is possible is say 22-25 HP at 10,500, and that, from my experience is not only feasable, but race winning as well.

Probably been talking to much and not listening ........

[Rick 52]

21hp in a RS still gets blown away on big track and only just hangs onto Gavs FXR on the short tracks, 25hp is needed to live with any sorted 4T ! Nathaniel was on The faster of the 2 bikes at Taupo and that has 25hp and it's a shame he could not hold on to it for a few more laps ..

[F5 Dave]

well a shock that hadn't spewed its guts may have changed the outcome for the lad.

Didn't I qual 3rd at Easter Kaitoke? (well, as of Sat night, Rich turned up & bumped a spot sunday). That was a short track on a 2 stroke. I'm not sure I could do that again, but it was helped by me (unintentionally) blocking Kel getting past I'm pretty sure. But I have to rub that in. Beat by a 50, the both of you. I'm working on the principle that practice counts more than the racing.

[richban]

Well now that the numbers are out I can post the dyno graph, 25hp and 6,000rpm range.

And now that Rich knows the formula for 25hp, I wouldn't be betting he won't get it reliable.

Also there are no doubt other FXR's that have crossed the 20hp barrier and following in his foot steps.

Still I think the 2-Stroke boys would be pretty safe building low 20's engines, I mean, what could go wrong with that approch.

When that result was recored I was having a major problems with the carb falling apart and not enough time / money to sort it proper. After that me and Andrew went to the track and dialed in the bottom end jetting and the main proper. The promising thing is that there is no drop of in power at all at the top end. When the ingntech gets installed it will be interesting to see what's hiding up at 14. Don't forget the CBR's wish I had one of them sitting in the shed. water cooling would be nice.

[TZ350]

Decent power and a broad spread in a good handling chassis is the aim.

I think a spread of 5,000rpm at near peak power (28-30hp) could be done and I have already posted my ideas on how to make an all conquring 2-Stroke engine with this sort of power spread a few pages back.

[kel]

Didn't I qual 3rd at Easter Kaitoke? (well, as of Sat night, Rich turned up & bumped a spot sunday). That was a short track on a 2 stroke. I'm not sure I could do that again, but it was helped by me (unintentionally) blocking Kel getting past I'm pretty sure. But I have to rub that in. Beat by a 50, the both of you. I'm working on the principle that practice counts more than the racing.

No mate you didnt block me, in fact you showed me the fast way around the track.
I dropped back with a couple of laps to go and tried to put in a couple of quicker laps, caught and passed you (in a straight line ) only to get completely shut out by whoever the next rider was. Crashed during the race while trying to lap the same bike. Crappy end result but a great weekends racing all the same. Can't wait to come back.

[richban]

Decent power and a broad spread in a good handling chassis is the aim.

I think a spread of 5,000rpm at near peak power (28-30hp) could be done and I have already posted my ideas on how to make an all conquring 2-Stroke engine with this sort of power spread a few pages back.

Well we can all hide away in the shed this winter and work on our little projects. Lets all show our hands at BOB. Plenty of hp helps at Ruapuna for sure. Truck down 20 bikes? Lets float that idea closer to the time.

[TZ350]

I have already talked about sleeves with side exhaust ports as a way of improving ring and piston reliability but fitting a sleeve brings its own problems, so we probably won't be going there.



Spurred on by Frits we striped the Beast and lowered it at the front as much as we can and jacked the back up a bit just to see what can be done.

It looks like a CRM450 tank could go in there, shifting the petrol weight forward like Yow Ling suggested.

And a long light weight MX seat and sub frame to get rid of some of the rear ward weight like Richban suggested.

And moving the engine forward a bit like Frits suggested, might be possible too.

The long MX seat could make it easy for shifting ones weight around, the Beast might end up looking like a cross between a Flat Tracker and Road Racer, it should be good.

[TZ350]

Truck down 20 bikes? Lets float that idea closer to the time.

Sounds Good.

[husaberg]

---

Never had a stock 600, but James Smiths (ex brenden Gere) was (from memory) 110 (this was a few years ago mind, so a bit foggy) one thing I always remember is a standard 1995 Rs 125 made 41, and a b kit made 43up,1989 NX4 37hp

Gee you must have been a gun to get hold of a NX4 in 1989 ?
It was hard enough to get hold of one in 1995 when Honda First started Manufacturing them.



Right for those who don't follow the thread i will outline my bucket build.
It consists of A JC20 NSR125 Engine chosen mainly for it more modern qualities.

It is Water cooled Case Reed has a Exhaust valve and all around Hondalishness.

Others looked at were the RGV100 been done TZR100 been done also the Aprilia 125 and the Cagiva 125 (Mito)these were rejected for various reasons.

The bore and stroke chosen are squarish ie 50mm x50.6mm. So it will be debored and destroked. $ no way around it bugger...
The piston is a oversize CR80.(Bought)
It will have a CR125 Alternator. (Bought)
Ignitech ignition. programmable. (Bought)
Keihin carb with TPS and an electric Powerjet. (Found must get around to paying for it)
Wobbly Parana (or is that Barracuda) exhaust.
Wobbly speced engine.

Chassis consists of a Prehacked about Rs125 NF4 Frame shocks and shocks. (Bought)
Wheels 2.5x17 CBR250 front with Cast iron floating RS125 diSK Brembo 4 pot caliper and RS MC.(Bought)
Rear 3.5x17 CBR400 front wheel with RS like cush drive for the Sprocket scooter disk and KTM 50SX caliper and MC. (Bought)

As it is designed for open tracks the Target HP is somewhere north of 24hp.

Muzza B is kindly bringing over the chassis this week from CHCH so a special thanks to Muzza B and for Crazyman and Bert for organizing its escape from the north Island.
Wayne (Wobbly) and Lozza (2tinsitute) for organising the Engine from Japan via Australia.

It isn't a how to build 10HP bucket for $100 but it is a still Budget build.

let the construction begin.