Turbo; JH or PL?

[verboten1 at gmail.com (Verboten1)]

agreed....even a good cam with low overlap will be helpful;

On 1/5/07, julie@menloparkrandd.com <julie@menloparkrandd.com> wrote:
>
> It seems to me that porting and polishing would be useful with either FI
> or NA engines. 8 or 16.
> By increasing the laminar flow and decreasing the turbulance of any air
> flow would be beneficial to power and efficency.
>
> >-----Original Message-----
> >From: LEF [mailto:rocco16@sbcglobal.net]
> >Sent: Friday, January 5, 2007 08:21 PM
> >To: 'Dan Bubb', scirocco-l@scirocco.org
> >Subject: Re: Turbo; JH or PL?
> >
> >Of course 8V's are worth turbo-ing. You can get insane amounts of power
> out of one with lots of boost. What may be naive is assuming that you need
> to go the normally aspirated route of cams, porting, free-flow intake,
> free-flow exhaust (as Dan said) to make a turbocharged engine produce power.
> You don't.
> >1) The purpose of all those normal (above) methods of increasing HP is to
> increase FLOW, right? With supercharging (this includes
> turbo-supercharging), the issue of flow is taken care of by, (drumroll,
> please)............boost. Want more flow? Turn up the boost. Of course, if
> you don't make allowance in fuel, compression, ignition, etc., all that
> boost-induced (I like the sound of that; "boost-induced"...) power might
> only be under your foot for a few seconds, but it will be there. That's why
> I said you can boost an A1 engine to make power beyond its ability to live.
> >2) By the way; free-flow exhaust on a turbo car??? :) The turbocharger
> itself is a significant flow restriction...if it weren't, there wouldn't be
> any work done by the unit. A turbocharger is about as close to free torque
> as you can get, but it ain't completely free. As some of you know, most
> turbo exhaust manifolds are designed for anything but free flow. They don't
> have to be; the power comes from........boost (not free flowing intake and
> exhaust systems).
> >3) Right, Dan, the engine (JH or PL) doesn't matter. Anything that the
> extra two valves will get you...and more...can be had with boost.
> >4) I don't understand what you are trying to say in your last sentence.
> If you care to re-phrase it, I'd be happy to try to respond.
> >
> >larry
> >sandiego16v
> > ----- Original Message -----
> > From: Dan Bubb
> > To: LEF ; scirocco-l@scirocco.org
> > Sent: Thursday, January 04, 2007 4:46 AM
> > Subject: Re: Turbo and 16V heads; 9A or PL?
> >
> >
> > OK Larry, I don't get it.
> > What's your point?
> > 8V's aren't worth turboing?
> > Or is this just another one word incomprehensible jab in typical Larry
> style?
> > Could this possibly be yet ANOTHER of those pathetic 16V's are so much
> better than 8V arguments?
> >
> > If I'm reading from your book Larry then the engine doesn't matter cause
> all I need to do is "turn up the boost".
> > I do have to admit I'm curious about how naive you were to participate
> in building your son's 8V turbo.
> > Dan
> >
> >
> > From: "LEF" <rocco16@sbcglobal.net>
> > Sent: Wednesday, January 03, 2007 10:11 PM
> > Subject: Re: Turbo and 16V heads; 9A or PL?
> >
> >
> > Naive? You ever build a turbo 8V, Dan? That's naive.
> >
> > larry
> > sandiego16v
> > OTOH, it's naive to say turn up the boost. There is a limit to the
> amount of boost you can run with a given octane fuel.
> > And "the usual power increasing tricks are suddenly moot"....??? Really?
> Cams, P & P, free flow intake, free flow exhaust are all irrelevant? Just
> turn up the boost??
> > I'm sorry, but that's just too naive.
> > Dan
> >
> >
> >
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