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Author Topic: turbo thoughts....  (Read 2086 times)

albertinhouston

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turbo thoughts....
« on: March 14, 2017, 04:04:48 PM »

I didn't want to post in USD's turbo post so I started a new thread.
I wanted the a turbo kit from MR enforcer but he didn't reply to my FB message. Here is what pushed me over the top to try this. The way it is bolted directly to the exhaust.
I'm thinking twin tiny turbos mounted directly to each head.
http://www.visordown.com/news/general/167bhp-twin-turbo-bmw-r1200gs

I found some super small ebay turbo's (100hp max). $220 shipped.
http://www.ebay.com/itm/MOTORCYCLE-QUAD-RHINO-Turbo-BIKE-SEADOO-Small-IHI-RHB31-100-FEEDBACK-SELLER-/401220179252?hash=item5d6a961534:m:mk5dT5VGZ8ldB7heMjqzbCg&vxp=mtr

I'm leaning towards the GV for this...I think there might be more room in the back for a twin set up.
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Cloud

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Re: turbo thoughts....
« Reply #1 on: March 14, 2017, 06:15:44 PM »


Not my bike of course but personally would supercharge.
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Dojy_biker

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Re: turbo thoughts....
« Reply #2 on: March 14, 2017, 06:48:06 PM »

volumetric efficiency of turbos goes down if you go small turbos, plus the more of them ; the more there is to go wrong.

however, small turbos spool up faster so less turbo lag, but suffer from overheating more
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albertinhouston

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Re: turbo thoughts....
« Reply #3 on: March 14, 2017, 06:55:50 PM »

Yes that is a given.
I was just thinking if I could bolt off the head it would save me a little plumbing work.

Why supercharger?   what would you run the pulley off of?
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umop-ǝpisdn

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Re: turbo thoughts....
« Reply #4 on: March 14, 2017, 08:36:04 PM »

Start thinking now about how you're going to fuel it.

Even an aftermarket ECU will need configuration from scratch as no spark table exists for our bikes. There is nothing that you can just plug in and tune. In my humble opinion it will have to be a Megasquirt, but even the Megasquirt need configuration at a very low level. ..as in from scratch. There is presently no firmware for it that will recognise our bike and make it start.

Speak to Ertert as he has his bike at least idling using a Microsquirt (same, but less inputs than the Mega and unsuitable for a turbo bike). He is having significant issues presently with the stock sensors.
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I used to be a sensitive, new age guy, but times have changed and now I am more of a caring, understanding, ninties type.

albertinhouston

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Re: turbo thoughts....
« Reply #5 on: March 14, 2017, 09:34:58 PM »

I'm going to talk to my OLDSCHOOL mechanic and see what my options might be.
He has done a few oiler gsxr's(carb) to FI conversion. 

I want to get his thoughts on a carb'd turbo.
He built several 900rr. 954 turbo's from scratch back in the day.

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albertinhouston

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Re: turbo thoughts....
« Reply #6 on: March 14, 2017, 10:08:58 PM »



Speak to Ertert as he has his bike at least idling using a Microsquirt (same, but less inputs than the Mega and unsuitable for a turbo bike). He is having significant issues presently with the stock sensors.

 I wonder if the SV has more options... Which make me WONDER If changed all the wiring and charging system would it run a HYO.  We have a new Fischer SV guru around here now. I might see if he has spares to on the cheap.

And now that I'm thinking about it... people are turboing dirt bikes with bigger cc and using carb. If you really think about it, I'm just turboing a 325cc cylinder. TWICE. Each are independent. I'll just need to pressurize the carb.
I'm sure i'll have random thought in the next few days so bare with me.
« Last Edit: March 14, 2017, 10:27:03 PM by albertinhouston »
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Cloud

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Re: turbo thoughts....
« Reply #7 on: March 14, 2017, 10:48:25 PM »

Why supercharger?   what would you run the pulley off of?

Supercharger because I'm kinda classy and yet also a bit trashy. I'm like prawn cocktails.

Run the thing from the flywheel.
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umop-ǝpisdn

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Re: turbo thoughts....
« Reply #8 on: March 15, 2017, 02:06:19 AM »

How do you get an output shaft off the flywheel and out of the crank case ...and make it so it doesn't leak oil?
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I used to be a sensitive, new age guy, but times have changed and now I am more of a caring, understanding, ninties type.

albertinhouston

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Re: turbo thoughts....
« Reply #9 on: March 15, 2017, 04:07:07 AM »

Sounds like a topic for thw some like it... Section

Id prefer not to rib HP fron the crank to make HP.

But im surebit xan brme done. With out leaking. There is the nifty cat in the middle of the cover.

Side note Cloud.  I was joking about ur age the othe other day but i look at ur profile and it says u r 137
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