piddy
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posted on 24/5/07 at 05:52 PM |
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Cool air
I've recently fitted different ram pipes and a Pipercross filter to my car. I know that cool air is an advantage but would boring some holes in
the bonnet at the side of the filter make much differents?
I'm thinking like this.
![](/galpreviews/a563806-1161541419-velocity2.jpg) ![Rescued attachment 1161541419-velocity2.jpg](/gallery/a563806-1161541419-velocity2.jpg) Rescued attachment 1161541419-velocity2.jpg
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blakep82
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posted on 24/5/07 at 06:00 PM |
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i wouldn't have thought so. it would take some cool air, but if you can a way to actually channel some air in and create some high air pressure
around the intake, that would make a nice difference
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flak monkey
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posted on 24/5/07 at 06:04 PM |
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Short of having the filters outside the bonnet, then you wont get a lot of gain, but you will get some if the filters are tight on the bonnet. I think
they say you need a good 50-60mm beyond the end of the trumpets with no obstructions for the best flow.
David
Sera
http://www.motosera.com
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snapper
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posted on 24/5/07 at 06:26 PM |
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Cold air is a Huge advantage and you have a few ways of gaining free BHP, or at least realise more potential BHP.
I have noticable gains from just running a big tube from the front to the air filter, scoops forcing cool air to the filter is also a plus, the best
system, and i know its expensive unless you fabricate it yourself, is to use the piper airbox and a large diameter tube to the front of the grill.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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flak monkey
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posted on 24/5/07 at 06:32 PM |
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Having just looked in your archive, you definately want something to let those trumpets get some air.
You will get a big gain if you do away with those gauzes on the trumpets as well - i know a few engine tuners who'd have a fit . They are
without a doubt THE quickest way to loose power as they disrupt the air flow enormously. Fit some proper filters.
This is what i did, and is ok if you can live with foam filters sticking out of the side of the bonnet:
Sera
http://www.motosera.com
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Dusty
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posted on 24/5/07 at 06:44 PM |
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I made up an air box in ally sheet, trumpets inside, 100mm tube and filter in the nose cone which may give some ram effect.
![](/galpreviews/a563842-filterairbox.jpg) ![Rescued attachment filterairbox.jpg](/gallery/a563842-filterairbox.jpg) Rescued attachment filterairbox.jpg
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rjs
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posted on 24/5/07 at 07:01 PM |
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I’ve done mine like this; yes I know they need straightening and I want to pull them out more away from the trumpets
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rjs
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posted on 24/5/07 at 07:05 PM |
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well that didnt work ![](/images//smilies/bigsmile.gif)
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piddy
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posted on 25/5/07 at 11:26 AM |
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Hello All.
Thanks for the advice.
I've done away with those hugh ram pipes and fitted these.
![](/galpreviews/a564272-New ram 1.jpg) ![Rescued attachment New ram 1.jpg](/gallery/a564272-New ram 1.jpg) Rescued attachment New ram 1.jpg
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piddy
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posted on 25/5/07 at 11:28 AM |
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And this.
As you can see it all fits under the bonnet and has the correct space between the trumpet mouths and inside of the filter(25mm). I must say it's
made a big improvement. I just thought it might be good to get more cool air to it before doing a final tuning session.
[Edited on 25/5/07 by piddy]
![](/galpreviews/a564274-New ram 6.jpg) ![Rescued attachment New ram 6.jpg](/gallery/a564274-New ram 6.jpg) Rescued attachment New ram 6.jpg
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