:::RHMT::: Real Home Made Turbo
General Category => Fabrication => Topic started by: boyko on March 29, 2009, 12:53:18 PM
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This is a Artic Cat M-1000 it has a 1000cc 2 cyl. 2-stroke and with a few simpal mods it will put out 180 HP. I am going to set it up to run AV fuel (it is cheep here) and see if can get +300 hp out of it, to bad winter is over
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To start with I needed more fuel going in to the motor and wanted to run a piggy back setup and use the stock fuel map so I glued some extra injectors on the T-Bodies.
First I milled a hunk off
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Because you get such a long intake pulse with a 2-stroke you do have to run a big plenium this is what I fabbed up, My welding is getting better.
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I upgraded to a Walbro 255 HP pump and I machined a dome to mod the stock regulator into a adjustable risining rate regulator.
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I missed taking pics on the other stuff I fabbed up but here is the turbo settup, I still have to build a cold air intake and tune it better. It putting out aroun 250hp at 6 pounds of boost
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Sweet fucking ass.
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Good to see you found your way over here. What ever happened to the yamaha? Though this is a way cooler project yet then that.
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fucking sweet, when do you think it will run
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Was out on it today, the thing is hard to tune,
Man does it haul at 6 psi !!!
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you have a dyno or do you guess guess hp based on your riding experiences?
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that's tight, i wonder how well it will work with the expansion chamber/two stroke thing... would love to try this on a jet ski :evil: keep us posted!
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Was out on it today, the thing is hard to tune,
Man does it haul at 6 psi !!!
Pretty much need a dyno, or a big lake, where you are making fresh tracks. I have ridden a couple NA 1000's and they are bordering on nut bar, that thing must scream.
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I never seen eny thing rip like this a 5 pounds of boost,
check out the before after pic of the turbo
The dumb ass cheap filter is no were to be found
fuckin filter and over sized zip tie....................... MIA.. lol
The thing did rip and I dont think I have to spend a lot of time fixin it so all is good.
Before
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After
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Pretty much all the stuff built on this thing was copied from other turbo kits, I think the the kicker here is the external waste gate and how it flows so smoothly into the muffer
low boost it moves.
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Fucking wicked dude. Go hang with the thunderstruck boys now :noel:
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fuckin filter and over sized zip tie....................... MIA.. lol
Dang, I guess you never got that memo. Better to go with nothing than mesh, especially when using a cheezy zip tie. Good thing you didn't use metal though. That plastic & nylon probably just squished in the cylinders rather than crunched.
That's fucking cool, way cooler than most other things here - and not simply because its the only boosted sled so far.
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Pretty much all the stuff built on this thing was copied from other turbo kits, I think the the kicker here is the external waste gate and how it flows so smoothly into the muffer
low boost it moves.
Looks like it fucked up the compressor wheel pretty badly. :(
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Think thats the point of him taking the picture. :P
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that is bad fucking ass
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Well that is a pricey way to learn, I love the standalone oil reservoir for the turbo. Now you just need a tarmac setup and runner at Castrol.
You could probably buy a non turbo sled, turbo it, and make some good coin off of it, especially now that you have done a couple.
How is that M1000T to clutch?
Oh, and I got Hit with 25cm of Snow on Saturday night - Sunday morning. :P Places just south and west of me are reporting as much as 45cm.
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Pretty much all the stuff built on this thing was copied from other turbo kits, I think the the kicker here is the external waste gate and how it flows so smoothly into the muffer
low boost it moves.
Looks like it fucked up the compressor wheel pretty badly. :(
I don't think the turbo is wrote off, two fins are a little bent on the ends and one is chipped on the edge, it looks bad in the pic. I'm pretty sure I can straighten it out and half ass balance it. Time will tell if it holds together.
Clutching has been easy to tune 290 grams of weights and it pulls 8000rpm at 5-6 pounds of boost the fuel has been a little tricky.
I herd Calgary got dumped on this weekend we did not get any.
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Fucking perfection.
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wow, cool, but how do you oil the turbo? stand alone oiling system?
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wow, cool, but how do you oil the turbo? stand alone oiling system?
The pics are pretty self explanatory.
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oh i see now, i thought that tank beneath the turbo was something to do with the oiling system for the engine, pretty dope idea. i wonder how good that setup would be for trail riding, or is it strictley for ice drags?
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why do you have two boost guages ?
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i like your oiling setup. good job.
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oh i see now, i thought that tank beneath the turbo was something to do with the oiling system for the engine, pretty dope idea. i wonder how good that setup would be for trail riding, or is it strictley for ice drags?
We have mountains here, it's for climbing them.
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id like to do that to a jetski (its minnesota, we have lakes here) snomobiles aint my thing, i always feel like im out of control and going to hit shit cause they drive like doo balls
why is there 2 boost gauges if theres one manifold?
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what kind of oil pump is that and where did you get it?
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why do you have two boost guages ?
One measures exhaust pressure, to much ex pressure over boost on a two stroke will kill off the pistons.
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what kind of oil pump is that and where did you get it?
It is a Facet magnetic piston fuel pump it cranks out a wimpy 4 psi but works on a full ball bearing turbo, I have used ithem before for a return pump on a rear mount turbo. I got it from NAPA I think it was around 65.00
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Thats wicked! Any vids? What about overall pics of the engine?
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why do you have two boost guages ?
One measures exhaust pressure, to much ex pressure over boost on a two stroke will kill off the pistons.
ah! How do you know how much is too much? Just looking to see that boost and exhaust are about equal?
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I am pretty happy with this setup, the exhaust runs 3.5 psi over boost, you build pipe pressure first to spool the turbo than it will stay at 3.5 pounds over boost to about 12 pounds of boost, I have not had it up that high yet. If your exhaust pressure is over 6 psi over boost it gets hard to tune, a 2-stroke has no exhaust valve and you are not getting the heat out of the cylinder and you start detonating or melting pistons becuase you can get it to run clean with a 1300 degree exhaust temp. :o
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Since I can never find any info about measuring exhaust pressure, despite "all" the supra guys suposedly running them, I'll ask you. What type of tube do you use, how long, and how hot does it get near the end at the gauge? I want to do it with a pressure transducer to log backpressure electronicly, and the sensor can only take 250* F.
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At least a 1 foot hunk of 1/8 steal brakeline or ss running to a vacume line will work. The exhaust gas does not move in it so heat realy is not a problem just make sure it is dead-headed
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FUCKING BAD ASS..
I want one
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Since I can never find any info about measuring exhaust pressure, despite "all" the supra guys suposedly running them, I'll ask you. What type of tube do you use, how long, and how hot does it get near the end at the gauge? I want to do it with a pressure transducer to log backpressure electronicly, and the sensor can only take 250* F.
I run one on my dodge, and have run them on several cars / trucks. I normally just go to HD grab about 2' of copper tubing, drill and tap the mani for the 1/8th npt fitting, thread it in, then I make the 2' of copper line into loose coils ( coils not touching) about the circumference of a pop can. When I get to the end of the copper tubing I use the other fitting, and run it into a female to female fitting, and then use normal nylon tubing from there to the gauge. On diesels in the female to female fitting I run some cotton or very fine steel wool, to keep the soot out of the lines.
There really isn't any flow in the line, just pressure so your only heat is that traveling up the copper from the manifold. I have run as little as 6" of copper with out issue, but I typically run closer to the 2' as it provides more peace of mind.
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Cool
So how much pressure over boost do you see and do you know what A/R the turbine housing is.
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On the current HX-35 with a 12cm housing I see ~1:1 until about 35psi I see 1:2 at ~38psi-40psi, and it sky rockets after that.
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Not mine, I have two separate holes, but I wish I would have though of this. Good pic to show exactly what I was talking about, looks like he uses SS tubing though.
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