G'day All,
Well.. went for a ride in my mates new R33 GTST fully optioned. Blimey!!!
Emerged with a grin the size of luna park & a little shaky. Was talking to
him afterwards & mentioned an intercooler upgrade to allow more boost.
He said there wasn't any point because if the inlet air got too cold it
would case piston meltdown.
I just left it at that as its his car & he professed to having read "all
about turbos". Still sounds bit suss to me.
I guess I'm just looking for a clarification of this issue & maybe an
explanation?
oh while I'm at it:
have heard lots of different things about BOV's heres what i think at the
moment. I would appreciate anyone beaing able to point me in the right
direction if i'm wrong:
- vent to atmosphere BOV's are purely for the "ohh that sounds cool"
aspect. The sudden pressure drop in the inlet manifold makes the computer
think that air is still flowing into the engine so it injects the
appropriate amount of fuel. This fuel is then in the chamber without the
correct amount of air & for the time it takes the driver to change gears &
put his foot back down the engine is running really really rich?
- recirculating BOV's (is there such a thing?) simpy reroute the
pressurised air that cannot be used while the throttle is shut so it
doesn't smash against the inlet manifold & do bad things. But then as soon
as the throttle opens again you've still got that pressure available so
there is 0 delay in hitting full boost again.
Well.. there ya go. Probably way wrong but I guess theres only one way to
find out & maybe look like a goon. Now wheres that "Send" button.
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