Re: [DML] Stainless Steel air filter box
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Re: [DML] Stainless Steel air filter box



Walt and others, Why do a lot of work on the intake end, when your 
just going to run into a problem on the exhaust end. An old race car 
driver told me that 15% HP,(That could bring us upto about 150HP.) 
could be realized with proper less restrictive exhaust. If were going 
to do anything to make an appreciable amount of difference, then work 
on exhaust. Then what you do on the intake side will be better used. 
BUT, I to have replaced my breather filter with cotton, from what I 
understand is what KN uses.I have also experminted with a fiber 
material like in the air conditioner filters used in homes, no 
restriction. Also, redo your hoses to suck in cool air not hot air. 
This will help a bunch.Do you ever notice how your car seems more 
powerfull when starting up on a cold morning.
John Hervey
www.specialTauto.com



--- In dmcnews@xxxx, "Walter" <Whalt@xxxx> wrote:
> If this thread is getting out of hand, then let the moderator tell 
everyone
> to e-mail me about this privately. Otherwise, I think this is the 
ideal
> forum to brain storm a better design. Whether I or someone else 
builds this
> or profits from it is not the point. The point is to enjoy and 
improve our
> cars. If I end up building it, then I will mark it up a 
conservative amount
> and sell it through the D vendors if they are willing. Otherwise, 
I'll just
> sell it through the internet. That is unless someone else wants 
the job of
> building these.
> 
> Since Marty got a 3HP gain by adapting a K&N filter, then I'm 
curious to
> know how much horsepower can be gained by running the engine 
without any
> filter or air box at all. (Just for testing purposes.) Has anyone 
done a
> dyno test to find out? I'm sure one of the performance guys at DMC 
Houston
> may have tried this. Please let me know. This would help 
establish a goal
> of minimum restriction.
> 
> My opinion so far is that the best filter box design would use cool 
outside
> air from the OEM location and bring it to the engine through a 
flexible hose
> (like the OEM design). There isn't enough room above the engine 
for a
> cup-shaped filter. If a cup-shaped filter were used in-line on the 
side of
> the engine, then this would take away from the length of the flex-
pipe.
> Since the engine torques and moves in relation to the engine 
compartment, a
> reasonable length flexible hose is needed to absorb the vibration 
without
> breaking. This brings me to the conclusion that a design more like 
the OEM
> is the most practical.
> 
> The only other variation that I can come up with for now is to re-
design a
> shutter valve that would also be an air box which could house a cup 
filter.
> Then the OEM filter box could be left in place without the filter. 
Is this
> a bad idea?
> 
> If anyone knows of or has archived photos of custom made air intake 
systems
> (excluding turbo and superchargered systems) please e-mail them to 
me
> privately or send me a link.
> 
> Thanks,
> Walt Tampa, FL






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