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-   -   honda unicorn and turbo chargers (https://www.team-bhp.com/forum/motorbikes/12386-honda-unicorn-turbo-chargers.html)

hi!, is it possible to install turbo-charger in honda unicorn engine to increase it's BHP. i know that turbo-chargers are used to increase BHP of engine, but ......how , if it's possible then list some manufacturer as well tuning specialist who can perform this type of work. location is of no concern as well as money.

one more question : racing engine oil can be used in normal commuters bikes like unicorn , if so then also list some best ( note :-> BEST...) 4-stroke engine oil ( RACING....)for honda unicorn

the prob is that u just cant find a turbo that small for an application on the uni which is just 150cc...teh smallest turbos by garett are for 500cc machines. of course u can get one for the lawn movers which still would be bigger. i have a pal who works on turbo designs and according to him, we just dont have such an option now..dont worry, u can expect a supercharger soon. there is a thread already on xbhp and we are working on it.

Finding a turbo that small is going to be really tough.

Joel, what about go-cart engines? I think abroad they run turbo'd motors.

can i use castrol R4 superbike engine oil for my honda unicorn?

1. Would it be worth? I mean $$$ wise?

My two cents.

I doubt if you can get one. Will a 150cc provide enough boost from the exhaust gases to rotate the turbocharger?! Seems as if the turbochager would in fact be a unnecessary resistance to the engine.

The engine should be large enough IMO.

Dev,

Best method to try a free flow exhaust from Proton, KRP etc. It will increase the back pressure to give you better power.

Yes it can, IF one is designed to work for a 150cc engine. At the moment, we are not able to find a turbocharger for a 150cc engine. Hence, the plan to supercharge bikes.

Any turbo charger is a resistance to the flow of exhaust gases. But the cons of having a turbocharger negate the the loss due to the "resistance".

The exhaust gases are just not powerful enough to turn a turbocharger, even if a turbocharger was designed for a 150cc bike, I doubt if it could get a significant increase in power.

Which is why, as you said, such small engines are supercharged.

Gordon, I think if one did design a turbo for a 150cc, the turbo probably wouldn't start spooling till a very high rpm, like about 8000 rpm on a Unicorn or Pulsar.

I searched a lot and we just could not find a turbo small enuff for our puny engines. The least bet would be a 500cc coz atleast then the exhaust gases can give enuff thrust to run the turbo…so anyday the supercharger WILL work. Also a turbo even if we found one, if installed will have a huge turbo lag coz if will start kicking in only after much higher rpms and that’s damn irritating. The best part about SC here is that power will kick-in righto after idle….signal to signal rides will be fun too and highway overtaking will be awesome. However the worst enemy of SC is de-acceleration……engine braking will be almost nil coz the rotors will still keep feeding the engine as its crank driven…Anyways, its just a matter of time to see that on our first prototype fiero200.

Hi guys,I am new to this site.But have been posting regularly on XBHP.I have modded a fiero to a V-twin.Presently working on a super charger for the fiero.And modify it to fit all other bikes once successfull.Other of my projects are having modded fieros to 195 cc.which are incidently faster than karizmas.
cheers
engine hacker.


If you think you have reached the top.Then there is only one way to go.Down?

welcome venu, guys like u are amazing........plz... teach me some modding basics....

What kind of info you want.I sure would love to help out in any kinda engine modifications.
cheers
engine hacker