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Turbo dr200 carb help


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Posted

As a mere observer of the world of boosted engines, am I right in assuming also that the carb breather and float chamber need to be vented to the boosted pressure rather than just to atmosphere?

Posted
4 hours ago, johnr said:

As a mere observer of the world of boosted engines, am I right in assuming also that the carb breather and float chamber need to be vented to the boosted pressure rather than just to atmosphere?

Correct, Float chamber needs boost pressure.

  • 4 weeks later...
Posted (edited)
11 hours ago, bartman said:

It's 2L might make it bigger not sure yet

2 times the displacement should be right. Some bikes run fine on a small plenum, some do need a bigger plenum

 

Edited by Reinhoud
Posted
10 minutes ago, Reinhoud said:

2 times the displacement should be right. Some bikes run fine on a small plenum, some do need a bigger plenum

 

It's a single cylinder. The plenum needs to be bigger if anything. I ran a direct short plenum before and it just bogged out. Needs a gulp of air to get the turbo spinning. And I know it adds lag

  • Like 1
Posted
8 hours ago, Reinhoud said:

2 times the displacement should be right. Some bikes run fine on a small plenum, some do need a bigger plenum

 

Er? - Its a 200cc engine - at 2.0L plenum capacity, that is 10x not 2x !

  • 4 weeks later...
Posted
On 12/25/2023 at 6:09 AM, Reinhoud said:

I know, I mean it's not too small

Ya Im stripping the engine down again going to a lower compression ratio. Water meth and more boost. Will find out if the crank can take it haha

Posted
14 hours ago, bartman said:

Ya Im stripping the engine down again going to a lower compression ratio. Water meth and more boost. Will find out if the crank can take it haha

You got a spare engine? If the crank can't handle it, the crankcase is gone too most likely, ask me how I know.. ;)

Posted
16 hours ago, Reinhoud said:

You got a spare engine? If the crank can't handle it, the crankcase is gone too most likely, ask me how I know.. ;)

Lol the cases are cheap. I'd love to throw a forged rod in it if I could even buy one

  • Like 1

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