[DeTomaso] Speaking of exhaust systems...

[gow2 at rc-tech.net]

Not that close to the tires. Heat shield going i inner fender well. Much
further away from shock then stock suspension.

> How is the heat from the Headers going to affect the tires?
>
> --- On Sun, 2/26/12, gow2 at rc-tech.net <gow2 at rc-tech.net> wrote:
>
>
> From: gow2 at rc-tech.net <gow2 at rc-tech.net>
> Subject: Re: [DeTomaso] Speaking of exhaust systems...
> To: "Tomas Gunnarsson" <guson at home.se>
> Cc: detomaso at realbig.com
> Date: Sunday, February 26, 2012, 9:12 AM
>
>
> No tuned length. I am working off some ideas here. When I made the last
> set cylinders were improperly matched:
>
> http://www.rc-tech.net/cars2/ts/eh/ex1.jpg
> http://www.rc-tech.net/cars2/ts/eh/hp.jpg
>
> They were 2 into one but you cannot properly match 2 into one with out a
> cross over. The effects were devastatingly bad; which is good for learning
> some times.
>
> I am not 100% on board with the benefits of equal length headers unless it
> is a 180 degree system. You will always have one cyl off unless you cross
> over. My goal was to delay the joining all 4 as long as possible.
>
> I also believe changes in back pressure, an equalization of the system
> some times give scavenge more credit then is due. I doubt few will agree
> with me but that's fine; that's why I like to play.
>
> So my goal here was the longest time before all cyl join given the most
> even pressure. Second, I built in a butterfly so I can play with the
> effect of back pressure:
>
> http://www.rc-tech.net/cars2/ts/eh/ex3.jpg
>
> G
>
>
>
>> An interesting design. The way the primaries enter the muffler I assume
>> no
>> scavenge effect can be expected. Are the primaries in some way tuned to
>> length/dia for a specific rpm or rpm range?
>>
>> Tomas
>>
>> -----Original Message-----
>> From: detomaso-bounces at realbig.com
>> [mailto:detomaso-bounces at realbig.com]On Behalf Of gow2 at rc-tech.net
>> Sent: den 26 februari 2012 14:46
>> To: MikeLDrew at aol.com
>> Cc: detomaso at realbig.com
>> Subject: Re: [DeTomaso] Speaking of exhaust systems...
>>
>>
>> I have a radically different exhaust system I hope to try this spring.
>> Instead of going through the suspension it is routed over the
>> suspension.
>> It is collected late in a home built muffler (not pretty) with a
>> butterfly
>> to change back pressure. I am not going to coat it till I run it on the
>> engine. This was mockup before the car was painted:
>>
>> http://www.rc-tech.net/cars2/panttransam/1905/ex/exh3.jpg
>>
>> http://www.rc-tech.net/cars2/panttransam/1905/ex/extry2p.jpg
>>
>> http://www.rc-tech.net/cars2/panttransam/1905/ex/extry2q.jpg
>>
>> http://www.rc-tech.net/cars2/panttransam/1905/ex/exh2.jpg
>>
>> http://www.rc-tech.net/cars2/panttransam/1905/ex/exh1.jpg
>>
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