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Silvertop velocity stacks - trumpets?
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08-13-2009, 11:08 AM
Post: #1
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Silvertop velocity stacks - trumpets?
I have 20v silvertop, the standard trumpets/airbox doesn't fit under the bonnet. Does anyone know where to get some short aftermarket ones, pref in Europe/ uk. I run a standalone, so dont use the AFM.
Cheers Ivan 1972 MG Midget - AE86 Engine, Ford Anglia Axle - Escort LSD - Live the Dream!!1 |
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08-13-2009, 12:55 PM
Post: #2
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Silvertop velocity stacks - trumpets?
Ebay (T3):
http://cgi.ebay.com/ebaymotors/Red-Veloc...ccessories http://cgi.ebay.com/ebaymotors/Silver-Ve...ccessories Tweakit: http://www.tweakit.net/shop/product_info...ts_id=1008 None of them in Europe though.. |
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08-14-2009, 02:02 PM
Post: #3
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Silvertop velocity stacks - trumpets?
Cheers for that, just need to check sizes and make sure they will fit under the air filter.
Thanks Ivan 1972 MG Midget - AE86 Engine, Ford Anglia Axle - Escort LSD - Live the Dream!!1 |
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08-14-2009, 09:15 PM
Post: #4
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Silvertop velocity stacks - trumpets?
you can get several sizes for the ST at tokyoseven.com from SPTEC
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08-15-2009, 06:21 AM
Post: #5
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Silvertop velocity stacks - trumpets?
Note that the length of the velocity stacks has an important influence on the engine characteristics.
http://www.sg-rallyesport.de |
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08-18-2009, 04:36 AM
Post: #6
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Silvertop velocity stacks - trumpets?
Also be aware of the proximity of the brake booster. This will limit your available length, and LHD's don't have this restriction.
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08-20-2009, 11:35 AM
Post: #7
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Silvertop velocity stacks - trumpets?
Thanks Nomuken,
I haven't seen that site before. Does anyone have any experience with using different stack lengths? I was running without any  Just a pipercross filter. The shorter the better for me to fit under the filter. Also bottom end power would be good.Thanks Ivan 1972 MG Midget - AE86 Engine, Ford Anglia Axle - Escort LSD - Live the Dream!!1 |
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08-20-2009, 02:58 PM
Post: #8
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Silvertop velocity stacks - trumpets?
If you are using the pipercross airbox, they say you can use trumpets with a maximum length of 45mm. But you def. should use some trumpets, they will improve the airflow drastically
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08-24-2009, 08:18 AM
Post: #9
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Silvertop velocity stacks - trumpets?
If your engine characteristics are such that there is more available bottom end than you're currently getting, then generally, a longer trumpet will move the biase this way. Ideally make an adjustable length intake (ie. 2 snug but sliding bits of piping with lengths marked on them) and put it on a dyno.
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08-24-2009, 02:36 PM
Post: #10
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Silvertop velocity stacks - trumpets?
Chrisso Wrote:Also be aware of the proximity of the brake booster. This will limit your available length, and LHD's don't have this restriction. i had them on my last Ae86 20V blacktop, and the last trumpet was slighty shaven/cut so that it did not clash with the braker Booster. Coupes, hoops and loops |
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