[s-cars] Q. for Hap and Javid

[Joe Pizzimenti]

Ben,
The length of the primary runners has not so much an effect on
spoolup, but high rpm behavior.  Let's say you have a 65# wheel on a
manifold with 19" runners.  You will see a benefit from 5000rpm on up
compared to a short tube header.  With equal exhaust pulses comes
better flow through the turbine housing, which brings better power up
top.

I say take a look at what kind of turbo you'll be running and make
your manifold decisions from there.

Regards,
Joe

On 7/15/05, Ben Gibby <jordad at hotmail.com> wrote:
> My question is about headers, I have the facilities at work to make one so I
> will give it a try. I need to know about tuning a header, do equal length
> pipes matter in a turbo application or, like 034s setup, can they be
> different lenghts with out much penalty? It seems to me the 034s header
> would let the turbo spool a little faster but that is speculation on my
> part. I am very much a DIYer and  have some ideas of my own to try but they
> are sort of radical and maybe a little weird so I kinda keep them to myself.
> I am Happersizing an oil cooler soon and am looking for a Happersized
> intercooler to plumb into my 20 valve. Thanks for any help.
> Shaka, Ben
> 
> 
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