Minimum Air Cleaner to Hood Clearance?

[RodKnock]

Originally Posted by patrickt

But then again, I have two rollbars.

I'm sorry Patrick, but I was in such a rush I forgot a few words. The correct phrase to end each post is: "But then again, what do I know, I have two roll bars."

[RodKnock]

Originally Posted by patrickt

"turn the other cheek."

And what's your fascination with Chas' hind quarters?

[tkb289]

If I can jump in here for a few quick questions ...


========

Originally Posted by Bobcat

... do ERA`s motor mount mod to the driver side mount to reduce motor torqueing ...

Bob

Bob ... what is the ERA motor mount mod ?

========

To All ...

- Assuming new rubber motor mounts that are properly installed, is there any rule of thumb estimate as to how far a motor will typically move side to side (torque over) under load at WOT ?

- If looking at the air cleaner from the font of the car, with 12 o'clock nearest the firewall and 6 o'clock nearest the radiator, which position on the edge of the air cleaner would tend to hit?

- Any consensus as to a best practice dimension for air cleaner to hood clearance ? I am thinking 1/2" clearance should be enough room to avoid rubbing for most cases, short of having a broken or loose motor mount. Too much ... too little ... Any thoughts?

========


... Thanks !

[patrickt]

Originally Posted by tkb289

...what is the ERA motor mount mod ?

It's the old "bolt throught the mount" trick. You only need to do it on the driver's side. Left engine mount modifications

[Bobcat]

tkb289 .... I decided to stay out of this thing as the thread degenerated .... however , getting back to your original question , the ERA mount modification is what Patrick has already answered . What it does is limit the amount of engine movement under load ( torque ) .... and is somewhat adjustable as you can change the preload by tightening the bolt . As I pointed out , the engine will want to rotate towards the passenger side under full throttle and this limits it somewhat . Where you might run into some contact is when you get off the throttle quickly and the engine settles back to the other side ... which is where mine just touches the underside of the hood ( off throttle quickly under WOT track conditions ) .... at about 8:30 am/pm per your reference . I have the motor mount mod as I also put the car on the track some and do a lot of WOT and hard shifting . I have not hard any contact on the driver`s side at all .
I measured my filter element last night and it is 3 1/4" top to bottom and 14" diameter . I could have picked up more clearance by using a 2 3/4" element , but wanted the larger element for less restriction .

Bob

[tkb289]

Patrick,

Good link ... I'll bet that Bob P. at ERA to came up with that motor mount mod, very clever.


Bob,

Sounds like quick throttle transitions is worse case for torque motion of the motor, and you have your car setup to avoid any air cleaner to hood contact.


Jeff,

Thanks for letting me side track your tread ... you have an ERA 427 car ... I have an ERA 289 car ... and I now know that motor mount set ups are not the same. I suspect as well that there are less issues with torque rotation of the motor in the 289 cars, as the motors have substantially less torque.

Back to the 427 discussion ...

[computerworks]

Originally Posted by Bobcat

tkb289 .... I decided to stay out of this thing as the thread degenerated ....

To all who have degenerated this thread:

If you can't have a cordial, civil technical discussion, then step out of this thread and don't let the door hit you on the way out.

We want to see info threads stay above the line; take any personal knocks off line via PM

thanks
ron
ClubCobra Moderator