Go Back   The Supercar Registry > General Discussion > Technical & Restoration


Reply
 
Thread Tools Display Modes
  #1  
Old 04-30-2003, 03:04 AM
musclcar musclcar is offline
Senior Member
 
Join Date: Feb 2003
Location: signal hill calif.
Posts: 381
Thanks: 0
Thanked 1 Time in 1 Post
Default crank case pan evac for the street

any thoughts or comments on running a pan evac on a very healthy sbc street motor.i'm running no pcv system and oil is soaking my 2 breathers on the valve covers.i was told that a pan-evac will help control /stop oil leaks and create lost h.p .i've gone completely over my motor and it's mechanically good.i'm just tired of the oil smell driping from the breathers onto the headers,due to not running a pcv system.will running a pan-evac be asking for more problems or am i ok with it [img]/ubbthreads/images/graemlins/[/img]
__________________
72 camaro ss 350 sbc 425hp old school day 2 build-up
Reply With Quote
Attachments - The Supercar Registry 39594-wheels up Malibu.jpg 39537-Ralph's burnout.jpg 39536-Ralph's smoker.jpg
O Garage vBulletin Plugins by Drive Thru Online, Inc.
Click here to view all the pictures posted in this thread...
  #2  
Old 04-30-2003, 04:16 AM
Seattle Sam Seattle Sam is offline
Senior Member
 
Join Date: Apr 2002
Location: Lynnwood, WA USA
Posts: 1,669
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: crank case pan evac for the street

It's an expensive way to solve the problem. I would make sure your valve covers have decent baffling around the breather holes, that might cure it.
-Sam
__________________
Reply With Quote
  #3  
Old 04-30-2003, 04:25 AM
fpcopo fpcopo is offline
Senior Member
 
Join Date: May 2001
Location: Omaha, Ne USA
Posts: 121
Thanks: 1
Thanked 0 Times in 0 Posts
Default Re: crank case pan evac for the street

I agree with Sam. I'll bet those valve covers are open right down to the rockers. One easy way to get around this is to put riser tubes on the breathers like the oil fill tubes on pre '69 small blocks. also make sure the PCV is hooked up. It helps oil leaks from the main seals also.
Reply With Quote
  #4  
Old 04-30-2003, 06:46 AM
Zman Zman is offline
Member
 
Join Date: Apr 2003
Location: SLC ,Utah
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: crank case pan evac for the street

I think evac-u-pan would be ok, and shouldn't cause any problems, unless you have to pass a smog test every year. [img]/ubbthreads/images/graemlins/dunno.gif[/img]
with a standard PCV, the excess gases are sucked back into the intake, and re-burnt, with evac-u-pan, the gases are sucked right into the exhaust, where they might not be completely burt before being exhausted.
I had the same setup on a 340 Duster I had some yrs back.
I didn't have any problems, but afetr I sold the car, the guy I sold it to had to pass a smog test, and it failed.
I never did hear if he ever got it to pass, or what he had to do to get it to pass.
I simple PCV would be alot easier, and cheaper.
__________________
Dennis
69 Nova 355, M-21, 3.90 12 bolt
68 Chevelle SS 396 4 sp

Reply With Quote
  #5  
Old 04-30-2003, 12:35 PM
ZL1mike ZL1mike is offline
Senior Member
 
Join Date: Nov 2001
Location: Toronto Canada
Posts: 184
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: crank case pan evac for the street

I run vac u pan on my ZL1 motor and it seems fine but you can also run a puke can with a breather on top fastened to your rad support plumbed to the valve cover, I've used 2 of these cans on a buds BBC pro street/strip chevelle that made a mess of oil on the valve covers and that cured the problem, but he drives like this ( see pics )
Attached Images
 
Reply With Quote
  #6  
Old 04-30-2003, 12:36 PM
ZL1mike ZL1mike is offline
Senior Member
 
Join Date: Nov 2001
Location: Toronto Canada
Posts: 184
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: crank case pan evac for the street

another
Attached Images
 
Reply With Quote
  #7  
Old 04-30-2003, 01:38 PM
Belair62 Belair62 is offline
Senior Member
 
Join Date: Nov 2000
Location: Suburban Chicago
Posts: 13,448
Thanks: 0
Thanked 14 Times in 11 Posts
Default Re: crank case pan evac for the street

Stefano....here is a lesson on keeping a car straight...pop quiz this weekend.
__________________
<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>
Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
Reply With Quote
  #8  
Old 04-30-2003, 05:14 PM
ZL1mike ZL1mike is offline
Senior Member
 
Join Date: Nov 2001
Location: Toronto Canada
Posts: 184
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: crank case pan evac for the street

straight is good but how about hoping this car goes straight. 1.28 short time in the 60 ft and 9.50 @ 140 mph on the motor in gramas car. [img]/ubbthreads/images/graemlins/[/img]
Attached Images
 
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 11:54 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.