[DeTomaso] 400 Exhaust

[gow2 at rc-tech.net]

Yea I think that may have worked better but I had already moved the other
direction. I am afraid there was only hind site in the first set. BTW I
have the firing order 15426378





> In the previous headers, you paired the center pipes.  That's not correct.
>
> You are supposed to pair 1&2, 3&4, 5&7, 6&8.  I'm not surprised that you
> got lean/rich cylinders.  That's like using a camshaft with more lift on
> some cylinders than others.
>
> I don't think it matters W vs. C firing order.
>
> Your current headers shouldn't have lean cylinders, but you don't have any
> scavenging.  I suspect that it's going to sound weird, but that's fun of
> tinkering around.
>
> BTW, you know that 3" pipes fit very easily using the normal routing
> through the suspension, right?  With your fab skills, it should be a piece
> of cake.
>
>
>
> On 9/4/12 11:39 AM, "gow2 at rc-tech.net" <gow2 at rc-tech.net> wrote:
>
>>Well I am playing with some things. First I wanted to get the exhaust
>> over
>>the suspension so I can increase the volume. I did not want 180's because
>>I may want to come up with a make shit trunk at some point.
>>
>>180's are awesome as you can pair the correct cylinder which is something
>>you can never do with a right L/R system due to the firing order.
>>
>>I originally built these to go over the suspension but the firing
>>order/back pressure left every other cyl lean:
>>
>>http://www.rc-tech.net/cars2/panttransam/hpold.jpg
>>
>>You can never get an optimum system with the firing order so what I
>>decided to do, since this was an engine based on lots of torq I decided
>> to
>>run each primary to the rear and collect them as far down as I could.
>>
>>The butterfly is just so I can play with back pressure.
>>
>>I can't wait to hear it on the car. On the stand the sound is fantastic
>>and I think it has to do with being in earshot of each cyl exit in the
>>can.
>>
>>Gary
>>
>>>
>>> In a message dated 9/4/12 9 22 40, b.hower3400 at yahoo.com writes:
>>>
>>>
>>>> I agree with David, I would vote for the chrome tips.
>>>>
>>>
>>> FWIW, me too!
>>>
>>> Gary--can you explain how your mufflers are designed to work?   They
>>>look
>>> very complicated and I'm sure there's lots more going on there than
>>>meets
>>> the
>>> eye?
>>>
>>> Mike
>>
>>_______________________________________________
>>
>>Detomaso Forum Managed by POCA
>>
>>Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>>
>>DeTomaso mailing list
>>DeTomaso at list.realbig.com
>>http://list.realbig.com/mailman/listinfo/detomaso
>
>
>