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Fentuz

Joined: 24 Nov 2007 Posts: 69
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greendrifter

Joined: 24 Nov 2007 Posts: 93 Location: sheffield 12
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Posted: Thu Dec 06, 2007 9:29 pm Post subject: |
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are you expecting much power gain Bill, 10 - 20bhp
i'm looking to mount my pipercross inside an air box then run some ducting from the box directly to one of the air intakes on the front of the car, to try and get more cold air through the filter. _________________ eunos 1.6 v-spec racing green,wolfrace alloys
il motosports twin pipes,pipercross induction
advanced timing,magnecor leads,long reach plugs. |
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Fentuz

Joined: 24 Nov 2007 Posts: 69
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Posted: Thu Dec 06, 2007 9:53 pm Post subject: |
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I think if you get 5bhp, that will be good... I think the best advantage is the throttle answer... it makes the engine freer to suck the needed air without restriction...
I'm expecting more from the combinaision Dynamic induction/bigger throttle body/Sport exhaust line.
To get 15/20 BHP extra, you would need to modify the valves, valves seats, cams, vernier etc... But there, I m not an expert. The "Cobra manufacture lad" would be a better adviser. |
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Fentuz

Joined: 24 Nov 2007 Posts: 69
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stupotvfr

Joined: 06 Dec 2007 Posts: 43
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Posted: Sat Dec 15, 2007 1:22 pm Post subject: Induction stuff |
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Bill/Chris..i went thru the induction kit stage with mine but was not impressed and finished up putting the original kit back on with a K and N filter and the engine was back to its smooth responsive self...great noise from the induction kit but that was about it.
But good luck with yours..you have probably bought a more expensive one than i did..it was a Typhoon kit only £120 but i got my money back on Ebay....Cheers Stu  |
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Fentuz

Joined: 24 Nov 2007 Posts: 69
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Posted: Tue Dec 18, 2007 9:45 am Post subject: |
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Your kit (as I mentionned at a sunday run) wasn't a dynamic induction kit. This type of air inlet works only if the engine breathes a O2 denser air.
If you enclose the cone in the proper box and put some ducting to take fresh air, you get more O2 so the combustion is better yield.
If you do a system as the typhoon, you put the cone next to the exhaust manifolt (one of the hottest place in the engine bay) so the air is less dense therefore, the engine gets less O2 and combustion yield is poor.
People who put a straight cone on Caterham, elise, MGF have found it make it worse. Add a box to insulate the intake and take the air from outside is the only thing you can do (or supercharged it )
Last edited by Fentuz on Wed Dec 19, 2007 7:19 am; edited 1 time in total |
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Fentuz

Joined: 24 Nov 2007 Posts: 69
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stupotvfr

Joined: 06 Dec 2007 Posts: 43
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Posted: Tue Dec 18, 2007 3:56 pm Post subject: |
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| thanks bill i do remember your advice, and it was much appreciated at the time, my point was that when i resorted back to the factory setup the car went much smoother and the typhoon was soon in the skip. mazda as other car companies spend lots of money developing such things as induction so my motto now is leave alone if its working and enjoy the 138 bhp i have on tap, with a car so light thats ample.happy motoring... stu... |
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Roadster Nut Bryn Site Admin

Joined: 24 Nov 2007 Posts: 99 Location: Unstone Green Dronfield
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Posted: Tue Dec 18, 2007 7:14 pm Post subject: |
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Bill,
I have new exhaust like Jills that arrived today £130
I will also go the same route a Stuart re the K & N standard filter swap until I can go for the induction above. |
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Roadster Nut Bryn Site Admin

Joined: 24 Nov 2007 Posts: 99 Location: Unstone Green Dronfield
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Posted: Tue Dec 18, 2007 7:16 pm Post subject: |
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Bill its so shiney I might fasten to the back bumper so I can see it
Reminds of the cross backs I had on the rally Imp! |
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