[DeTomaso] Exhaust

[John Taphorn]

Gary

It sounds as if you had your answer before you asked the question.  I am 
glad it works out.  Seeing the effort you had already invested in creating 
the header upswing, it would have been terrible had there been interference. 
For clarification, as the suspension compresses and the tire eventually 
contacts the inner frame, is the exhaust pipe close to the inner wheel?  I 
must admit to being surprised the tire doesn't touch it then on the front or 
back side.

Sorry for the false scare

JT
----- Original Message ----- 
From: "GW" <gow2 at rc-tech.net>
To: "John Taphorn" <jtaphorn at kingwoodcable.com>
Cc: "detomaso" <detomaso at realbig.com>
Sent: Monday, October 08, 2007 9:03 PM
Subject: Re: [DeTomaso] Exhaust


>I did put the wheels through the entire range. That is why I put the 
>suspension back on without the springs. The only time the tires come close 
>is under compression. In fact they are no closer then they were when the 
>exhaust went through the suspension.
>
> John Taphorn wrote:
>> Gary
>>
>> I'd wager that you will have interference.  I recommend that you remove 
>> the shock and put the suspension and tire through its range of motion.  I 
>> did a lot of testing in this manner to gauge backspacing when I first 
>> went to 18" rims.  With enough compression the tire's sidewall will scrub 
>> the frame rails right above your picture labeled .../exmock1.jpg.  I was 
>> surprise how much negative camber increases in compression.
>>
>> Should you mount the exhaust this way, you may elect to use nitrogen in 
>> the tires.  Looks like they will be near quite a heat source.  Although, 
>> that may warm the tires quicker on cold track days.  I hypothesize the 
>> set up will also aggravate understeer initially; that is until the rears 
>> overheat and you can play with oversteer.  :^)
>>
>> JT
>> ----- Original Message ----- 
>> From: "GW" <gow2 at rc-tech.net>
>> To: "detomaso" <detomaso at realbig.com>
>> Sent: Monday, October 08, 2007 8:41 PM
>> Subject: [DeTomaso] Exhaust
>>
>>
>>
>>> With the tire fully compressed there is enough room to put through
>>> --two--- 2.25" pipes. A rough mockup here:
>>>
>>> http://www.rc-tech.net/cars/panttransam/1905/ex/exmock2.jpg
>>>
>>> http://www.rc-tech.net/cars/panttransam/1905/ex/exmock1.jpg
>>>
>>> http://www.rc-tech.net/cars/panttransam/1905/fit/wheel.jpg
>>>
>>> Gary
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>>
>>
>>
>>
>