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Turbocharged, Supercharged, and Hotrod Motorcycles: Re: [turbobike] priority breather valve

Re: [turbobike] priority breather valve

Rick (gsxr1100@ptw.com)
Fri, 24 Apr 1998 15:50:37 -0700

Now that sounds impressive 300hp from 800cc Wow!.

2 stroke?

the valve it self is not to hard to make but the spring inside takes some
trial and error.
I'll post some pictures of it when I develop the film.

Do you have some pictures of this monster of yours post them to the list if
you do I'll make a section on my web page for it.

I would like to hear more on your FI unit

Turbo Rick
Web page
300HP Turbo GSXR1100
Street bike, Technical, Pictures
-----Original Message-----
From: Dave Morrill <david.p.morrill@fairchildsemi.com>
To: turbobike@natvideo.com <turbobike@natvideo.com>
Date: Friday, April 24, 1998 11:55 AM
Subject: [turbobike] priority breather valve

>Turbo Rick,
>VERY Impressive job on the GSXR.  I'm amazed you can keep back tires on
>that thing!  I've been working on turbocharging a ZRT800 snowmobile over
>the past year and I know what it's like putting these projects
>together.  I use a similar setup as you, mitsu TE04H turbo blowing
>through electronic fuel injection (with a computer I designed and built
>myself).  I also built the exhaust/intake/efi manifolds, etc. etc..
>Snowmobiles are similar to bikes, lot of intake pulsing, very short
>intake duration/high rpm, not much room to work, etc..  I'm estimating
>about 300hp at 15lbs of boost on a cold day w/116 octane, intercooling
>will be my next mod, no dyno info yet.
>I'm interested in your priority breather valve.  I suffer from some
>minor turbo lag that I've worked around by raising my clutch engagement
>to 6000 rpm.  This is rough on equipment.
>I've been thinking about designing something like this for a long time,
>but was reluctant to hack into my intake manifold.   When I saw that you
>are successfully using something like that, it really peaked my
>Is it something you made or bought, what can you tell me about it?
>I also just picked up a CBR600 F3.  Might be the next turbo project,
>although I believe if your going to do a project like this, it's best to
>start with a big motor like you did.
>anyway, thanks,
> Dave.