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-   -   Minimum Air Cleaner to Hood Clearance? (http://www.clubcobra.com/forums/all-cobra-talk/112452-minimum-air-cleaner-hood-clearance.html)

Jeff Frigo 09-08-2011 06:35 AM
Minimum Air Cleaner to Hood Clearance?
 
I have a 14" air cleaner on my ERA. What do you guys think minimal clearance should be between the lid of the air cleaner and the bottom of the hood. I'm thinking of purchasing a 1/2" carb. spacer.

JBCOBRA 09-08-2011 07:11 AM
If the hood closes.....you are good to go :)
Mine rubs the side of the scoop slightly

Jeff Frigo 09-08-2011 07:20 AM
Quote:
Originally Posted by JBCOBRA (Post 1150178)
If the hood closes.....you are good to go :)
Mine rubs the side of the scoop slightly
Serious, no paint rub marks?

JBCOBRA 09-08-2011 07:27 AM
Sure there is a little mark, but I am the only one who would ever notice and at least to me is no big deal, because the benefits of a phenolic far outway a tiny rub.

mreid 09-08-2011 07:37 AM
I have about 1/8" with poly mounts. No issues.

Bobcat 09-08-2011 07:58 AM
I can`t run any spacer as I run the tallest filter element ( almost 3" ) I can get and also a drop base filter housing ( 14 " filter ) . I have about 1/8" clearance on the passenger side ... remember , your engine is offset to the right on a 427 . The engine wants to torque to the right anyway ..... I do get some contact on the passenger side , but only if I go WOT quickly ( on the front and back straight at VIR ) , but it`s minimal . You can reduce your filter element height , and lose some power ( probab;y won`t notice it ) and do ERA`s motor mount mod to the driver side mount to reduce motor torqueing .
Try putting some clay around the air cleaner lid , close the hood , open it and measure what it was squished down to .

Bob

ERA Chas 09-08-2011 09:15 AM
Be sure to get the Xtreme top from K&N or you will have a new RPM limiter against the scoop.

Jeff Frigo 09-08-2011 10:17 AM
Quote:
Originally Posted by Bobcat (Post 1150191)
I can`t run any spacer as I run the tallest filter element ( almost 3" ) I can get and also a drop base filter housing ( 14 " filter ) . I have about 1/8" clearance on the passenger side ... remember , your engine is offset to the right on a 427 . The engine wants to torque to the right anyway ..... I do get some contact on the passenger side , but only if I go WOT quickly ( on the front and back straight at VIR ) , but it`s minimal . You can reduce your filter element height , and lose some power ( probab;y won`t notice it ) and do ERA`s motor mount mod to the driver side mount to reduce motor torqueing .
Try putting some clay around the air cleaner lid , close the hood , open it and measure what it was squished down to .

Bob
Did the clay already, but I didn't know about the offset, thank you.

Jeff Frigo 09-08-2011 10:19 AM
Quote:
Originally Posted by JBCOBRA (Post 1150180)
Sure there is a little mark, but I am the only one who would ever notice and at least to me is no big deal, because the benefits of a phenolic far outway a tiny rub.
Who says phenolic, maybe wood? :D:D:D

Jeff Frigo 09-12-2011 03:20 PM
Ok, I installed it this weekend, about 1/16" clearance :D:D:D. Seat of the pants difference on top end I think. :rolleyes::rolleyes::rolleyes:

ERA Chas 09-12-2011 04:08 PM
Quote:
Originally Posted by ERA Chas (Post 1150211)
Be sure to get the Xtreme top from K&N or you will have a new RPM limiter against the scoop.
Maybe I type in invisible ink...:rolleyes:

Jeff Frigo 09-12-2011 04:49 PM
Quote:
Originally Posted by ERA Chas (Post 1150944)
Maybe I type in invisible ink...:rolleyes:
Sorry, I would never put something that ugly on my car.

patrickt 09-12-2011 05:03 PM
Quote:
Originally Posted by Jeff Frigo (Post 1150949)
Sorry, I would never put something that ugly on my car.
It is kind of funky looking.

http://www.racebasics.com.au/images/...lter%20Top.jpg

ERA Chas 09-12-2011 05:07 PM
So you put a wood block under your carb and tell me the open top is ugly.:mad:
Spacers either add 6HP or cost 6HP (which you can't feel or measure unless you're running strip laps) and need to be dyno coordinated to an intake system. They are not a toy-du-jour for performance improvements. This little tinker project was stupid to start with and what I told you was to prevent what you found out.
Test it without the AC in place to see if your choice is able to help. If it picks up, then get the Xtreme top if you want power-if you're a lawn-chair guy, then forget I tried to help...
And I won't make that mistake again.

patrickt 09-12-2011 05:10 PM
Quote:
Originally Posted by ERA Chas (Post 1150951)
... then forget I tried to help... And I won't make that mistake again.
Dang Chas., please let me buy you a month's supply of Zoloft.:cool:

ERA Chas 09-12-2011 05:30 PM
Quote:
Originally Posted by patrickt (Post 1150952)
Dang Chas., please let me buy you a month's supply of Zoloft.:cool:
Ya don't have to pal-just start another air bleeds thread...
Instant catatonia.
Buy Brent a nitrided valley tray instead.:)

patrickt 09-12-2011 05:34 PM
Quote:
Originally Posted by ERA Chas (Post 1150956)
Ya don't have to pal-just start another air bleeds thread...
Instant catatonia.
Buy Brent a nitrided valley tray instead.:)
Wouldn't you feel better about yourself if you had just a little more patience with well-intentioned contributors who just happen to slight you ever so lightly?:confused:

ERA Chas 09-12-2011 05:39 PM
I though I was a well-intentioned contributor...

lovehamr 09-12-2011 10:59 PM
Quote:
Originally Posted by ERA Chas (Post 1150951)
So you put a wood block under your carb and tell me the open top is ugly.:mad:
Ohhhh, that makes you angry? Wuss.

Quote:
Originally Posted by ERA Chas (Post 1150951)
Spacers either add 6HP or cost 6HP (which you can't feel or measure unless you're running strip laps) and need to be dyno coordinated to an intake system. They are not a toy-du-jour for performance improvements.
Really, I take it that 6hp # is from your extensive testing? The guys doing actual testing in say "Engine Masters" competition, or NASCAR, or Trans Am, or any number of actual professionals, might have evidence to counter that sophomoric supposition.

Quote:
Originally Posted by ERA Chas (Post 1150951)
This little tinker project was stupid to start with and what I told you was to prevent what you found out.
Denigrating comments like this are what make you such a freaking wanker. What did he find out Chas? Maybe you read some tea leaves or something and came up with something that the OP DIDN'T say.

Quote:
Originally Posted by ERA Chas (Post 1150951)
then get the Xtreme top if you want power-if you're a lawn-chair guy
You've been through the stupid "Xtreme" filter lid discussion here before and have been told by people much more experienced and knowledgeable than you just how little (if at all) this POS works. And yet you have the unmitigated gall to spout "if you want power" at the OP who has only 1/16" clearance over the top of his AC? These piles of dung show negligible results when run on cars with wide open scoops and dynos with perfect air and yet you have somehow miraculously surmised that this guy's tiny over filter clearance would somehow produce major power with a pile of dog doo on top?

Quote:
Originally Posted by ERA Chas (Post 1150951)
then forget I tried to help...
And I won't make that mistake again.
Well THAT would be nice!

Jeff Frigo 09-13-2011 12:43 AM
Quote:
Originally Posted by Bobcat (Post 1150191)
I can`t run any spacer as I run the tallest filter element ( almost 3" ) I can get and also a drop base filter housing ( 14 " filter ) . I have about 1/8" clearance on the passenger side ... remember , your engine is offset to the right on a 427 . The engine wants to torque to the right anyway ..... I do get some contact on the passenger side , but only if I go WOT quickly ( on the front and back straight at VIR ) , but it`s minimal . You can reduce your filter element height , and lose some power ( probab;y won`t notice it ) and do ERA`s motor mount mod to the driver side mount to reduce motor torqueing .
Try putting some clay around the air cleaner lid , close the hood , open it and measure what it was squished down to .

Bob
I also have an ERA with a Ford cast iron 427 block, Edelbrock Performer RPM intake, and a drop base air cleaner with a 3" tall, 14" dia. filter, and a 1/2" phenolic spacer. I have 1/16" clearance, not all drop bases cleaners are the same. Go to Summit and you will see.


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