[DeTomaso] Carb Inlet

[John Taphorn]

Space City members have run dyno comparisons with the dogbone twice.

Once on my 408 where the dogbone without a spacer was 10HP down as 
compared to running no aircleaner on an engine dynometer.

The 2nd test was on a chassis dyno using Gray Gregory's car with a 377 
Cleveland. The dogbone showed one horsepower more than without it.  We 
attributed the increase to within the margin of error.  He used no 
spacer and a single element on both sides.

I believe some deeper testing was done a couple years back where an 
individual varied the height of the spacer under the dogbone.  If I 
recall correctly, a 1.5" worked best with no additional gains beyond.  
Anyone recall the specifics?

As seen in the pic, I now run the dogbone with four K&N airfilter 
elements and a 2" spacer on top of a strip dominator.  It does not block 
my view out the rear as I look out over the top of it.

JT


On 4/13/2014 1:14 PM, Charles Engles wrote:
> Dear Stephen,
>
>
>                This supports Mike's response.  I seem to recall dyno results
> over the years that support the "dogbone" air cleaner mount 1) reduces HP;
> 2) doesn't change HP much and 3) increases HP.
>
>               IIRC the Space City Panteras had a dyno day where their tests
> showed a substantial benefit with the dogbone.  Unfortunately, I don't see
> that on their website tech section.
>
>               If you were able to borrow one and if you're going to dyno the
> engine, then you could do the experiment yourself.
>
>
>                                  Warmest regards, Chuck Engles
>
>
>
>
>
> -----Original Message-----
> From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Stephen
> Nelson
> Sent: Sunday, April 13, 2014 12:06 PM
> To: detomaso at poca.com
> Subject: [DeTomaso] Carb Inlet
>
> I am still waiting time on the dyno, so engine is pretty much on hold for
> 5332.  But, am thinking ahead to when I will need to put on an air cleaner.
> I have seen several engines with an inlet to the carb that splits in two and
> mounts the air cleaners to either side of the carb.  Any comments on the
> performance of such a set-up, or recommendations for a better setup?
>
>   
>
>
>
>   
>
> Stephen Nelson
>
>   
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