hirot Ian Hart Ashbourne UK (88 posts) Registered: 06/01/2011 05:15AM Main British Car: 1971 MGB GT (conversion) Rover 3947 R380 gearbox |
Which Air Filter for Edelbrock to under bonnet/hood
Hi, I am in the process of putting a rover 3.9 into my BGT and am trying to work out which route to take to fit an air filter that will provide enough air but is low enough to fit under the hood without a bulge....or at least a small bulge.
I have the standard 3" filter and am not sure if a 2" one will fit and if it does will the carbs get enough air. K&N have a 2" an X-stream filter top. Will this fit and provide too much air. Another option is use the Edelbrock 1002 foam filter. I have sprayed all the car except for the hood and am desperate to start putting baby together and play. So any suggestions will be greatly recieved. Many Thanks Ian |
rficalora Rob Ficalora Willis, TX (2764 posts) Registered: 10/24/2007 02:46PM Main British Car: '76 MGB w/CB front, Sebring rear, early metal dash Ford 302 |
Re: Which Air Filter for Edelbrock to under bonnet/hood
2" filter should be fine.
Edited 1 time(s). Last edit at 09/30/2012 07:05PM by rficalora. |
mgbazza Barrie Egerton Sydney Australia (24 posts) Registered: 01/20/2009 07:40AM Main British Car: 1978 MGB GT Rover 3.5 |
Re: Which Air Filter for Edelbrock to under bonnet/hood
It's a case of trial & error. There are so many factors involved,The type of inlet manifold, the height of the engine, the type of aircleaner used. I have a Buick 215 inlet manifold, an Edelbrock 1404 carb., a low rider type cleaner & a 3" filter. BUT, I do have a low (1") hood scoop. Without the scoop I could only fit a 2" filter. Some of the aircleaners I tried ,the bottom plate fouled on the choke controls & some fouled on the choke plate with the top of the cleaner using a 2" filter. I fitted the scoop to get hood clearance when I fitted EFI a few years ago. For testing the clearance, I always use 3 lumps of plasticine stuck on the cleaner lid , one at the front & the others at the sides & close the hood very GENTLY.
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Simon Austin Simon Austin Surrey, British Columbia (107 posts) Registered: 10/23/2007 01:44AM Main British Car: 1977 MGB V8 / 1970 MGB GT V8 project Rover 3.5 / Rover 3.5 |
Re: Which Air Filter for Edelbrock to under bonnet/hood
Ian,
I've got the 1404 carb with Edelbrock Performer intake on my car seen here: [www.britishv8.org] Using a 1.5" drop-base filter assembly, 1 7/8" round K&N filter plus the Xtreme top. Don't worry about too much air. The 1404 needs rejetting to work with the 3.9 efficiently. Out of the box, it will run too rich. I used the Clive Wheatley engine mounts so the engine sits higher than other mounts available. With this in mind, the Xtreme filter does protrude above the hood line. Options around this: use a scoop like I have, an MGC hood, an RV8 hood or create your own hood bulge. |
Re: Which Air Filter for Edelbrock to under bonnet/hood
I am using a holly dual filter top but I cut of and welded one side closed. Future plans is to duct it out ofr the hole in the front valance with a round filter:
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britcars Phil Ossinger New Brunswick, Canada (346 posts) Registered: 02/02/2009 07:58PM Main British Car: 1977 MGB Roadster, Rover 3.5 ADVENTURE BEFORE DEMENTIA! |
Re: Which Air Filter for Edelbrock to under bonnet/hood
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rficalora Rob Ficalora Willis, TX (2764 posts) Registered: 10/24/2007 02:46PM Main British Car: '76 MGB w/CB front, Sebring rear, early metal dash Ford 302 |
Re: Which Air Filter for Edelbrock to under bonnet/hood
There are a bunch of BOPR conversions using 2" filters. I assume they all use drop bases to some degree, but plenty of them out there. Just scan the "How it was done" articles... [www.britishv8.org].
Edited 1 time(s). Last edit at 10/07/2012 10:54AM by rficalora. |
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mowog1 Rick Ingram Central Illinois (1523 posts) Registered: 10/17/2007 09:36PM Main British Car: 1974.5 MGB/GT 3.9l Rover |
Re: Which Air Filter for Edelbrock to under bonnet/hood
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