ESE's works engine tuner

[wobbly]

If you wana talk pipes, take a gander here.
Prototype set for my 100Hp+ F3 - 400 RZ in Aprilia 250.
Though personally I like the radial Brembos with adapters better.

Having sharp corners, even up at the center section kills power big time - better to have 3 small cuts than one sharp one.

[jasonu]

If you wana talk pipes, take a gander here.
Prototype set for my 100Hp+ F3 - 400 RZ in Aprilia 250.
Though personally I like the radial Brembos with adapters better.

Having sharp corners, even up at the center section kills power big time - better to have 3 small cuts than one sharp one.

Nice looking workmanship

[F5 Dave]

Should be -its in his buss name. Looks good. Presumably large looking stingers are venturied at interface. Pretty serious ign flywheel balancing going on there. But is that a 13mm nylock I see. Oh the shame!

[speedpro]

Not too bad. Funny you should mention "having sharp corners" and then not smooth out the joins between sections. NoMates could've helped there, for a fee.

[wobbly]

Been there tested that on Ti pipes, if you have ever tried to hammer Ti or Stainless you will know its all but impossible.
As long as the angle changes are small like the sections in the pipes shown, with fusion only welds,then hammering the joins makes no difference to power.
Nigel is anal about the hammering and does a real good job just to be better at it than me,but as the testing showed its not needed with quality fusion welds,it makes my customer pipes just a bit more affordable.
If I hammered every weld of a single pipe, it would take 3 days instead of 2.
But even he wanted to have sex with the first set I made for the RS500.
The venturi is 27mm the stinger ID is 28.6

[F5 Dave]

my 496 runs 28.6 (actually might have gone down a size for availability, can't remember) still looks thinner, but that's pictures for you.

[Gigglebutton]

If you wana talk pipes, take a gander here.
Prototype set for my 100Hp+ F3 - 400 RZ in Aprilia 250.
Though personally I like the radial Brembos with adapters better.

Having sharp corners, even up at the center section kills power big time - better to have 3 small cuts than one sharp one.

"Pipe Porn" very nice. Are they stainless?

[wobbly]

Yep, 304 Stainless, a real bitch to roll and work with, but easy to weld.
I hate doing them in SS, and now get Tyga to do the production pipes off my patterns, as 90% of the work is in getting the shape and cuts correct.
Another small point about weld hammering is that if its done "too well" then you get the same issue as found with blown pipes.
The angle changes become smeared and you loose power.
Especially at the interface of the header end, and the rear cone to the mid, these have to be a "sharp" angle change, different issue to a too sharp angle cut, that isnt a change in pipe section.

[diesel pig]

Another small point about weld hammering is that if its done "too well" then you get the same issue as found with blown pipes.
The angle changes become smeared and you loose power.
Especially at the interface of the header end, and the rear cone to the mid, these have to be a "sharp" angle change, different issue to a too sharp angle cut, that isnt a change in pipe section.

Interesting, This probably accounts for the works pipe I Have see on the interweird with blown headers and the rest welded.

[TZ350]

On page 200 there is a simpler 23 rwhp setup using a RG250 chamber modified to RM125 specs. And on this page, the basic details for 27rwhp from a 1978 Suzuki GP125 Engine and RS125 Expansion Chamber.

Trademe http://www.trademe.co.nz/motors/moto...-391580898.htm



Good hp can easily be pulled from one of these. A bit of work and someone could have a fast ride for the next BOB.

[F5 Dave]

So are you making it down to chch Rob? Very much enjoying the idea if I can make it. Maybe I can race a bike that has more than a 50's worth, Diesel's 100 got me addicted to some power despite being pretty no faster than an FXR, still got me up to 4th in a sprint race.

[TZ350]

So are you making it down to chch Rob? Very much enjoying the idea if I can make it. Maybe I can race a bike that has more than a 50's worth, Diesel's 100 got me addicted to some power despite being pretty no faster than an FXR, still got me up to 4th in a sprint race.

Its a thought but by the time I got there and back I would have to justify the 3,000k on road costs of the company van and two weeks away from work, three if I did Greymouth too, its a long chance but I will talk with the powers that be at work.

[wobbly]

Here is the bowl of the Solenoid PJ carb, with brass tube added to keep the PJ siphon point underwater at the front.

[F5 Dave]

Hopefully the same can be said for the main. Had that issue before after a long straight & a corner. Some of it was size of filling delivery tube (internal), but it sucked air never the less. Made band-aid straw extender on one carb.

[ac3_snow]

I am running a 24mm mikuni round slide carb on my TF125, is some one able to give me a ball park figure for which lean/pilot jet I could start with? I think I have a 40 in there now, need to spend more time on it try a few things but am I close?

160 main seems not too bad for now.