ESE's works engine tuner

[wobbly]

The pic is showing how I lay out the sections to fit a pipe onto a bike in CAD - the part I hate,welding and hammering comes later.
Then the sheetmetal function in SolidWorks generates the patterns.
The design is to try to get the fat part of the belly forward, away from the chain and swingarm, so the diameter can be way bigger - more power egor.
Its being cut out soon, but it looks like I will be in Waikato Neurosurgery having an op on my spine to try and " fix " me,so wont get welded for a few weeks.
I will post a pic when they and I ,are done.

[RomeuPT]

The pic is showing how I lay out the sections to fit a pipe onto a bike in CAD - the part I hate,welding and hammering comes later.
Then the sheetmetal function in SolidWorks generates the patterns.
The design is to try to get the fat part of the belly forward, away from the chain and swingarm, so the diameter can be way bigger - more power egor.
Its being cut out soon, but it looks like I will be in Waikato Neurosurgery having an op on my spine to try and " fix " me,so wont get welded for a few weeks.
I will post a pic when they and I ,are done.

I love working with solidworks too, but wound't I need to have the coordinates of the frame, chain, swingarm, engine, etc to simulate and to fit the exhaust...!?

[F5 Dave]

Looks better than building them with No.8 wire & wire donuts like I've done.

Good luck with the op.

[wobbly]

If you look at the pic you will see a construction geometry sketch within the assembly.
This was measured directly off the exhaust port face, and sets where the clearance is needed under the engine, and the exit angle of the port.
Then I did an alloy welding wire centreline with cardboard circles, measured this, and that is on the sketch as well.
The pipe doesnt need to follow the centreline exactly, the important deal is the smooth shape, and ultimately has to clear the swingarm etc.
In this design, due to the forward push on the header, the smaller diameter part of the rear cone is well away from the chain etc, so will bend up close to
the footrests, getting tucked in as much as possible.
This allowed the design to go up to 125 belly diameter, a stock TZ, even with crossovers, is struggling to fit at 110 max without dents all over the place.

[F5 Dave]

Remote PJ solenoid:

So I've got my whappin great KX carb sitting on the shelf & as I'm finally getting around to fitting my Ignitech (MB100) I'm thinking about the next steps. I've decided I need some more work before I fit the 36mm so want to retain my RGV carb for the moment. (& ideally on the 50 that has zero over-rev)

It (RGV downdraft Mikuni) has a jet fitted PJ tube external exit out the floatbowl. It feeds into a hole at the top of the carb, but I can poke a tube into the venturi at a better position than std.

But what would be cute would be a small external mountable solenoid to block the flow, as long as I could robustly bolt it to the side of the carb. The Keihin one doesn't really suit that adaptation.

Any thoughts?

[TZ350]

Remote PJ solenoid:

But what would be cute would be a small external mountable solenoid to block the flow, as long as I could robustly bolt it to the side of the carb. The Keihin one doesn't really suit that adaptation.

Any thoughts?

I put the plug lead on and the spark plug is for size comparison and its maybe better suited to bleeding air into the PJ valve to kill the suction than directly cutting the fuel but this little 12V 360mA item from JayCar ($32 from memory) was what I was planning on using with my IgniTec for a PJ cut off.

[TZ350]

Three holes for the injectors and one screw to hold it all on, how hard can it be??? but it has taken me ages to get it all figured out.

I am looking forward to getting the rest of the bits and trying the EFI system out. There is a bit of finishing to do, but hopefully I will be able to get a more or less back to back comparison on the dyno with the old carb.



Found this on the net, looks like there are still a few good looking original Suzuki GP's about.

[husaberg]

Remote PJ solenoid:

So I've got my whappin great KX carb sitting on the shelf & as I'm finally getting around to fitting my Ignitech (MB100) I'm thinking about the next steps. I've decided I need some more work before I fit the 36mm so want to retain my RGV carb for the moment. (& ideally on the 50 that has zero over-rev)

It (RGV downdraft Mikuni) has a jet fitted PJ tube external exit out the floatbowl. It feeds into a hole at the top of the carb, but I can poke a tube into the venturi at a better position than std.

But what would be cute would be a small external mountable solenoid to block the flow, as long as I could robustly bolt it to the side of the carb. The Keihin one doesn't really suit that adaptation.

Any thoughts?

Ten carrots

Right i had a wee search on the net.
The genuine kit is a little expensive, I couldn't find the Keihin but here is the Mikuni, as you know i had already posted this.$303nz.
Maybe the Keihin kit is less expensive.

I haven't had the chance to look through Sudco yet.
Had a wee look at Sudco it seems the soilniod is not listed as a separate part bugger.

Here is one from the UK Mikuni person no prices.
http://www.allensperformance.co.uk/p... jet kits.html

I also found this with the dimensions of a lot of inlet manifolds etc
http://www.allensperformance.co.uk/p...manifolds.html

TZ's keihin copy carbs i believe have a Powerjet the obvious way to me for a budget conscious bucket racer would be to modify this for electric use with a car solenoid.

There is another option but i am not posting that until i have got one myself.

Nice explantion on powerjets here no that theres anything wrong with wobs.
http://superkartaus.com/Forums/index...opic=77.0;wap2

Adjustable powerjet it looks like it would be easy to make as well addthis with an electric controll or just adjust the pulse to your needs as Wob said would be very6 Sexy but prob a bit OTT.

http://www.twostrokeracelab.com/sear...ble%20Powerjet

The rest of the site is well worth a look as well.

Here is a 12volt solenoid that looks capable assuming there isn't a car wrecker part to suit around.
I have priced the Genuine Mikuni kit a $200 US so it is a tad expensive.
Remember though what ever the set up it has to be so if it fails it will not lean out the mixture.For obvious reasons

Tubular 12V Solenoid Compact size, Push type.- Coil resistance 25.6- 20 watt @ 25% duty cycle.- Pushing force 220 - 940g (25% duty cycle).- Stroke 1.0 - 6.0mm (25% duty cycle).- Total weight 23g.- Full data supplied with unit.

QTY 1+ $41.90 5+ $37.90 10+ $33.40

http://www.jaycar.co.nz/productResul...3&keyform=CAT2

Of course if stepper motors are more your deal there is this.

[IMG]file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/msohtml1/01/clip_image002.jpg[/IMG]
12VDC 48 Step / 7.5° Stepper Motor

• Standard 48 step / 7.5° design.
• Flange mount 3.0mm hardened steel shaft.

Specifications:
• Rated voltage: 12VDC
• Rated current: 1.1A/phase
• Phases: 4
• Steps per revolution: 48
• Stepping angle: 7.5°
• Drive method: Unipolar chopper drive
• Resistance per winding: 20 ohms
• Starting frequency: 600pps (max)
• Holding torque: 700g/cm

	QTY
	1+	$23.90
	5+	$21.30
	10+	$18.90

http://www.jaycar.co.nz/productView....r&form=KEYWORD

With todays technology the bar can now be raised to around 40 crank Hp without too much drama involved, and thus achieving around 35 RWHp.
Its just a matter of careful parts selection and very careful assembly.

The alloy inserts for the TZ350 was the customers choice - once its all proven, and we get a handle on what the engine likes, then I will do some bronze ones.

AvGas in NZ is all LL100, this is low lead 100 octain.But the rating is defined differently in avaition.Its approx equiv to 100 "pump" gas, but has a lean rating of 100 and a rich rating of 130.
MNZ Appendix E defines avgas as max 112 MON amd max 108 RON.

Avgas, or any leaded "race" fuel reacts completely differently to unleaded pump gas.
In general terms the unleaded hates compression, but loves timing.Avgas is the opposite in that it makes more power up to the knock limit with more com.
Unleaded makes better power when run rich,avgas makes more the leaner you go.
Tuning in the old days with RS and TZ engines meant using lean mains and small powerjets ( 35 ) as turning off a big jet over the top would mean being too lean in the overev.
Nowdays the unleaded fuel runs rich at peak power, then uses a big powerjet ( 55) to create some heat in the pipe over the top.

[bucketracer]

Found this on the net, looks like there are still a few good looking original Suzuki GP's about.

Nice bike but hard to imagine as a fire breathing monster, these little old Suzukies are a real wolf in sheeps clothing.

Three holes for the injectors and one screw to hold it all on, how hard can it be??? but it has taken me ages to get it all figured out.

30+hp then EFI, this would have to be a World first for a commuter bike from the 80's.

I hear there is another radical mod or two coming, but what could be even more radical than this ....

[chrisc]

Found this on the net, looks like there are still a few good looking original Suzuki GP's about.

Haha that really cracked me up. That's my old man Simon having a crack around the driveway before it all came apart as the donor for my RS-GP125. It definitely looked in better condition in the photos than in real life

[TZ350]

Haha that really cracked me up. That's my old man ...

Yep I thought it was pretty good too, seeing him on the net....

[F5 Dave]

Thanks for ideas gen kit looks good but too spendy for me. Pretty tall too. Air bleed not right for gas . OThers require a seal on end and machined seat.

[Buckets4Me]

dads been talking about 2 stroke fuel injection (thinking he was the first)

[wobbly]

ETec is insanely superb patented technology, the dickheads in the other video gave up as they couldn't get it to " work " even though they were touted as the next best thing to sliced bread on track.
Mixed wotnots and sarcasm fully intended.

[husaberg]

That PV blade directly opening the auxiliaries is quite cute.


Lozza often says the Gas Gas (i think it was the gas gas or maybe tm?) system is the ducks guts (Just like the mad max interceptor)
how does that one differ?... two stage blades? Never seen one Must google it........
is it a cross between the Kawa kips on the KR1 and the Blade PV?