[Biturbos4] several niggling issues

Richard van der Hoff richard at rvanderhoff.org.uk
Thu Nov 9 06:23:37 EST 2006

Hi guys,

Firstly, Brandon - stick with it, once the issues are ironed out you'll 
love the car. Every time I walk past mine I want to either stroke it or 
take it for a drive :).


Brandon Rogers wrote:
> 1.  Throttle response - the engine is super-hyper-sensitive to throttle
> input.  Can be jerky.  I am putting together a pressure tester and hope
> to pressure test the intake in the next day or two.  
> What are symptoms of bad (either 1 or 2) bypass valves?

Hrm - this rang slight bells, though given you're thinking in terms of 
bypass valves, I guess it's not quite the same thing. The problem I have 
is that if you're driving slowly with your foot off the gas, you then 
can't put your foot on the gas without it suddenly lurching forward; 
it's as if the first 1% of throttle travel is very sensitive. I'd always 
just thought this was the way it was.



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