ESE's works engine tuner

[koba]

Quallman1234 and I wen't halves in your (TZ- I think) old copy of MOTA.

I'm having a play with it first as I'm currently needing more power from my engine. The TF Quallman has isn't going to be going for quite some time.

It took me quite a while to get everything working right. I feel I have a basic model (Could be slightly better) of my engine sussed.

I was very surprised to see the power curve look exactly how it feels on the bike.
It may be a different story against a dyno.
The dip I can feel is there, the revs are about what I think they feel like.

The power does seem over-stated at 16 rather than an arse-dyno 14-at-best.
I know arse-dyno is terribly inaccurate but this IS in an environment I'm quite familiar with and directly compared to bikes of a known quantity.

I do think it hasn't really changed my planned modification strategy at all.
This is possibly because I'm dealing with a well known platform with access to the experience of many others.
EDIT: I do feel it has validated my plans, I'm less worried about cocking it up.

I think it would be quite valuable if dealing with a less well known motor or if less access to information was available.


Right, Time to run another sim... (number 82)

[Bert]

Yes 125 2-stroke vis 200 4 with a 24mm carb restriction and air cooling only, same rules for both, sounds fair to me.

and only 2 valves... isn't that the BRA rules (well 185cc at least)....

[husaberg]

Itailian Friday

Few could deny it is still a beautiful bike.

It was on the cusp of finally living up to its potential.
Finally being developed in a more methodical manner.
A great shame the plug was pulled.
as a side note Foggerty said the FI was a piece of poo.

[wobbly]

Just goes to show even supposedly "good " reporters know jack - calling EGT probes Lambdas and then not spelling them correctly.

[NordieBoy]

Colin Lyster didn't have many good words to say about Sir Al either

[F5 Dave]

. .. Have been playing with numbers for my TF engine - hoping for 20+Hp from 9000 to 12500 with peak power of 26.5 at 11500. . .

I'd be looking at some fairly serious re-engineering before you ask a Suzuki TS/TF crank to spin that fast.

[2T Institute]

I'd be looking at some fairly serious re-engineering before you ask a Suzuki TS/TF crank to spin that fast.

Crank is no problem, same crank in the RM 100/125 air cooled , early water cooled and the RG 125 with the 54mm stroke , power reed and the 19mm crankpin.
What IS diabolical is the TS/TF gearbox ratios which are wide enough to drive a semi through. If you were being sneaky fitting a air cooled RM 125/100 gearbox would be ideal.

[speedpro]

I'd be looking at some fairly serious re-engineering before you ask a Suzuki TS/TF crank to spin that fast.

I have to agree with Dave. Based on a few years experience the cranks don't like much more than 11,000rpm regularly. I used phenolic resin caged mains which were OK but the thrust washers were a problem. It's not really an issue as the pistons won't handle those revs anyway. Even the RG400 pistons don't last and crack. I was replacing them every two meetings and that was after I polished the regions where the cracks originated. All rods were superceded to the RM rods which was nice - silver plated big end bearing.

[wobbly]

Unless the part number from Suzuki is the same for the later superseded rod/bearing ie both models then use the same parts from the factory - then of course an RM rod is illegal.
No different than sneaking in a RM gear set - im watching you buggers.

[Farmaken]

I have to agree with Dave. Based on a few years experience the cranks don't like much more than 11,000rpm regularly. I used phenolic resin caged mains which were OK but the thrust washers were a problem. It's not really an issue as the pistons won't handle those revs anyway. Even the RG400 pistons don't last and crack. I was replacing them every two meetings and that was after I polished the regions where the cracks originated. All rods were superceded to the RM rods which was nice - silver plated big end bearing.

I have not opened the inlet ports at all, in fact they are sealed and now have crankcase reed fitted to barrel with boost port at rear machined to exit thru std rear transfer ports ( actually now one port with roof angle of 55*. Hoping this will extend piston life somewhat.

RM/TF rod will have to do for now but that gear set sounds tasty !!

[F5 Dave]

You're following Mikes lead with the CC induction, although he by then wasn't using TS top end.

[speedpro]

I'm pretty sure if you order a TS/TF rod you will be told they have been superceded. The only genuine rod you can get that fits is what used to be the RM rod. You have to wonder why they even bothered making two rods with different material specs.

Don't listen to me though. I have a reputation for using illegal rods.

[husaberg]

Don't listen to me though. I have a reputation for using illegal rods.

Shh ......its a secret
You may find something "legal" here http://www.pro-x.com/downloads/Technical.pdf

More Italians to follow. ......

Not as cool as the Frits files though. 88

[husaberg]

Italian Friday Aprilia RSV400
The thing I found most interesting about this article is what Jan (Jan Witteveen) says and how it comes err..across........

Maybe Fits could be kind enough to add some insights into the RSV400 project.

[Frits Overmars]

Italian Friday Aprilia RSV400. The thing I found most interesting about this article is what Jan (Jan Witteveen) says and how it comes err..across........
Maybe Fits could be kind enough to add some insights into the RSV400 project.

You have no idea what you're asking of me. I refrained from reading the above articles because I want to keep my good mood. But OK....
The 400 cc twin was entirely Witteveen's idea. He built it in cooperation with Franco Moro (the same glorious cooperation that produced the Maxtra / Haojue 125...). When they realized that 400cc wasn't enough to beat the 500 cc fours after all, they made the pistons bigger and bigger, resulting in a more and more oversquare engine with more and more thermal problems.