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I've been looking at throttle bodies for the VR. Jenvey don't do a kit for the VR when I emailed them they put me on to Grant Motorsport but I've not heard the best things about him. If you want big bhp then go with a turbo or charger, with throttle bodies your looking around 20 bhp which isn't a massive gain but they will sound the nuts.

 

BRC Automotive do a manifold for bike throttle bodies

http://www.brcautomotive.co.uk/our-projects.html

 

Bogg brothers haven't done a VR before (it was awhile ago I spoke to them so may have now) but said they could make a kit for bike tb

http://www.boggbros.co.uk/

 

There are some companies that do a full kit, there's one in Germany but I can't remember the name and there's VRS Northampton that do a full kit but it's not cheep

https://www.facebook.com/116115708405730/photos/pcb.1032419630108662/1032416676775624/?type=1&theater

 

Or the other option is to use M3 tb and have a manifold made up, you do see the odd set come for sale 

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Depending on what else you've done you're probably looking at a max of 220/230 bhp. To get 250 bhp takes massive amounts of work there was a thread I read VWVortex

http://forums.vwvortex.com/showthread.php?2616140

Read this if you want N/A tuning

that does make for a good read interesting read. There is mention in there about the distance the fuel has to travel for half of the cylinders (4inches) that's a lot of time to let it recollect, defeating the purpose of atomization.

Is a short runner intake worth trying on a N/A engine?

At this rate I might just folliw the crowd and get a turbo.

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that does make for a good read interesting read. There is mention in there about the distance the fuel has to travel for half of the cylinders (4inches) that's a lot of time to let it recollect, defeating the purpose of atomization.

Is a short runner intake worth trying on a N/A engine?

At this rate I might just folliw the crowd and get a turbo.

 

From my understanding a short runner intake doesn't give much bhp either on a N/A. If you want big bhp go turbo from what I've read over the years 

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