Lets talk tuning

[BLACK WIDOW]

Air intake

went under the knife today. Or should say the heat gun. With heat I removed the velocity stacks an the lid to vent inlet. The inlet is intresting to say the least.very restrive, in the amount of air it allows to pass. It has 2 separrate chambers, 2 small square orfices, for air to pass between.

I will be using the stacks, along with a evolutions race intake, an stock air box, In some testing. Won't be rite away, still have to adapt the dyno to accept the :spyder2:. Hopefully by spring there should be some data, to add to " my therories".lol:yes: Gene

Are you talking about the inlet of the stock air box with the two rubber tubes? Or are you talking about the internal inlet to the velocity stacks. if the internal inlet is restrictive why couldn't it be opened up some? Or am I completely off the track here?

Keep us posted.

Michael:doorag:

 

[madjack]

What I'm refering to, is the part that recieves the excess pressure from the crankcase. with enough heat from a heat gun, It's eays to lift the flat top off of the stock air box.

I think there's a lot that could be done in this area, to help stop the oil from leaveing that chamber. Also the 2 resricted vent holes could definitly be enlarged. This enlargeing could possibly cause more oil to pass, if other measures weren't done at the same time.

With having a seperater installed, I'm am amazed at the amount of condensation is mix in with the oil, that collects in the bowl. Granted it's winter an the volume might be much less during warmer months. But saying that, I still perfer that 0% of this crude to reenter my engines.

thanks Black Widow for helping keep this thread going. topics like these are what make some of us motorheads hang around talk forums, in the first place. In time hopefully there will be more that chime in.

In tuning for performence, MPG or what ever, it;s the small things that help to finish the product. Gene

 

[BLACK WIDOW]

Motor Head

What I'm refering to, is the part that recieves the excess pressure from the crankcase. with enough heat from a heat gun, It's eays to lift the flat top off of the stock air box.

I think there's a lot that could be done in this area, to help stop the oil from leaveing that chamber. Also the 2 resricted vent holes could definitly be enlarged. This enlargeing could possibly cause more oil to pass, if other measures weren't done at the same time.

With having a seperater installed, I'm am amazed at the amount of condensation is mix in with the oil, that collects in the bowl. Granted it's winter an the volume might be much less during warmer months. But saying that, I still perfer that 0% of this crude to reenter my engines.

thanks Black Widow for helping keep this thread going. topics like these are what make some of us motorheads hang around talk forums, in the first place. In time hopefully there will be more that chime in.

In tuning for performence, MPG or what ever, it;s the small things that help to finish the product. Gene

Your working in some of the areas that interest me also; So keep up the good work and keep us posted.nojoke

Michael:doorag:

 

[bjt]

Your working in some of the areas that interest me also; So keep up the good work and keep us posted.nojoke

Michael:doorag:

+1 I've thought about how the stock airbox could be made better in regards to the crankcase vent issue. I'm interested to see what you come up with madjack.

 

[SpyderWolf]

Does it make a difference whether you have an 08 or an 09 model for this experiment, or are those parts still the same?

 

[BLACK WIDOW]

Spyder

Does it make a difference whether you have an 08 or an 09 model for this experiment, or are those parts still the same?

The 08 and 09's would be the same.

Michael:doorag:

 

[SpyderWolf]

The 08 and 09's would be the same.

Michael:doorag:

Thank you.

 

[madjack]

Hey there :spyder2: junkies, old thread, but I said I would update someday. What the Rotax ended up with was a kewlmetals intake with the stock air box velocity stack inserted, drainable catch can, fully wrapped pipes, MBRP murdered out muffler, an juice box. I had the juice box installed before the intake, acually when the muffler was put on. First intake was a evolution, then went to the KM, lots of diferent combos settings. Believe it or not in the end the factory setting was the sweet spot.
Now the tuning had to be seat of the pants. I could not convince the owner of the dyno at my acces, to invest the $$$ to make it work for the :spyder2:. I all but offered to pay it myself, Been hitched to the love of my life foor43years, so I knew better then try to slip that by her, LOL. So as far as numbers an afr graphs witch I was really hoping to provide, not happening at this time anyway.
This mod has well worth the time and effort, this :spyder2:has been averageing 35mpg, instant throttle responce, no popping, I can't prove through, the science of dyno time, but the difference between the two velocity stacks was the changes it took me achieve a good tune without off popping or hesitatiun on variouse throttle roll-ons.
Still am working on the wife, but she says guns are loaded if I tear the heads off or anything else to help her keep up a little better, says she'll meet me at the end of the trail. cheers

 

[Roger]

How about some pictures?

 

[wyliec]

With having a seperater installed, I'm am amazed at the amount of condensation is mix in with the oil, that collects in the bowl. Granted it's winter an the volume might be much less during warmer months. But saying that, I still perfer that 0% of this crude to reenter my engines.

Gene,

Do you mind a p.m. I have something I'd like to run by you regarding the condensation. It's not something I can discuss here and I don't want to hijack this thread.

 

[madjack]

Wyliec, p.m. a phone #, I'll yak to ya

 

[Campverdefela]

How about some pictures?

opcorn: I too would like some pics or some info on how you inserted the stock stacks into the kewlmetal intatke. How much felt difference in performance between the stock kewlmetal setup and with the stack inserted...

 

[wyliec]

Wyliec, p.m. a phone #, I'll yak to ya

I sent a p.m.

Thanks