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#1
08-06-2019, 11:45 AM
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Valley Pan PCV Valve with MR1 Block
Had to use an aftermarket sheet aluminum valley pan to clear the ribs with the new block. An older one I got from Butler a few years back. Having trouble with the PCV valve sucking oil. It has a baffle in the aluminum tube but not enough as oil is getting by What is the fix for this? Can you install another baffle on the underside of the valley pan? Move the PCV valve to the valve cover. Is there a better valley pan that will fit the MR1 block and not suck oil.
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#2
08-06-2019, 12:07 PM
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Mighty mouse PCV can with Morose breathers fixed mine. Each breather plumbed to the can and the PCV in the can to the back of the intake. Problem solved and I'm autoXing.
Sent from my SM-G930V using Tapatalk
__________________
 -1967 GTO HO Restomod. PKMM 433ci, SilverSport T56 Magnum 6spd, Moser 9", SC&C and a bunch of other pro touring goodies - Build Thread http://forums.maxperformanceinc.com/...615847&page=23 |
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#3
08-06-2019, 12:16 PM
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I tried running a Tomahawk valley pan on a MR-1 with the PCV in the stock location and it sucked oil too. Am going to try it in the valve cover with a baffle and a catch can like Nicks67GTO.
The Tomahawk pan needed a bit of massaging to fit over the ribs.
__________________
68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#4
08-06-2019, 12:21 PM
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I put a plug in mine but I'm running an evac pump and catch can.
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#5
08-06-2019, 12:27 PM
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#6
08-06-2019, 12:28 PM
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#7
08-06-2019, 01:03 PM
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I'll try to snap a few tonight and get back here
Sent from my SM-G930V using Tapatalk
__________________
-1967 GTO HO Restomod. PKMM 433ci, SilverSport T56 Magnum 6spd, Moser 9", SC&C and a bunch of other pro touring goodies - Build Thread http://forums.maxperformanceinc.com/...615847&page=23 |
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#8
08-06-2019, 01:08 PM
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Good to know it's not just me with this problem. Lol. Mine is a Tomahawk pan on a stock 400 block 433 but I'm in and out of the throttle 3500-6500 a lot while autoXing and the problem was found on a high rpm chicane followed by a big brake zone into a big sweeping right hand carousel turn where it immediately looked like I sprayed a field for bugs mid way through lol
Sent from my SM-G930V using Tapatalk
__________________
-1967 GTO HO Restomod. PKMM 433ci, SilverSport T56 Magnum 6spd, Moser 9", SC&C and a bunch of other pro touring goodies - Build Thread http://forums.maxperformanceinc.com/...615847&page=23 |
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#9
08-06-2019, 01:20 PM
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Whose valley pan and how many holes in the bottom? I had a KRE that only had 3 holes that worked fine no oil sucking on my roller 455 block even when driven on the street. Now the Butler one is thicker but has a bunch of holes in the bottom and I cna not get it to not suck oil and look like I am fogging for mosquitoes. Tried a taller tube, baffled grommet-still sucked oil. One trail I ran in the valve cover and it seemed to do OK with a baffled grommet.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#10
08-06-2019, 01:28 PM
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Older Butler valley pan, likely 10 years old or so. Has one baffle plate pressed into the tube. The baffle plate has two slits in the plate and is bent a bit to allow for air movement up through the tube.
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#11
08-06-2019, 03:37 PM
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#12
08-06-2019, 03:42 PM
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66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3.90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9.77@136.99 Multiple NSCA/NMCA World Champion 66 GTO 389 3x2, 4 speed, 4.33 gear, Montero Red 33K original Miles 67 GTO 2dr Post, 428, Tri Power, 3.55 Gears 80 Trans Am Black SE Y84 W72 WS6 |
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#13
08-06-2019, 03:48 PM
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#14
08-06-2019, 04:00 PM
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Ive used the one from bop engineering and worked good on a stock block. Ive since pluged the hole with a freeze plug and use header evacs now. Its a good 1/8" thick
https://www.bopengineering.com/beltd...c_topend.shtml
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Illinois Outlaw Gassers 6.27@107 9.97@131 Last edited by Bill Eveland; 08-06-2019 at 04:07 PM. |
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#15
08-06-2019, 07:47 PM
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I think the problem with trying to run a pcv in the valley pan with a MR-1 block is the extra ribbing/reinforcement they have. A lot of oil lays in that area compared to an open stock block that lets oil drain back without pooling. Even the stock type baffled valley pan pulled oil.
So far a cheap baffled twist-on oil fill cap with a pcv valve mounted in it running through a catch can is keeping the oil out.
__________________
68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
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#16
08-07-2019, 07:18 AM
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Sorry about the pics, the glare in my garage this morning was bad. I tried to shield it off the radiator shroud with my hand.
-Mighty Mouse PCV canister -Moroso sealed breathers with the stainless steel filtering -8an lines -PCV from can to the back of the intake Oil sucking problem solved      Sent from my SM-G930V using Tapatalk
__________________
-1967 GTO HO Restomod. PKMM 433ci, SilverSport T56 Magnum 6spd, Moser 9", SC&C and a bunch of other pro touring goodies - Build Thread http://forums.maxperformanceinc.com/...615847&page=23 |
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#17
08-07-2019, 09:56 AM
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I had that problem with a customers engine years ago. I put a restrictor in the hose going to the pcv valve and put breathers in both valve covers.
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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#18
08-07-2019, 10:18 PM
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Clean as heck! Job Well done!
__________________
"You have to evaluate the past,Focus on the future,and that tells you what you have to do in the present"--Lou Holtz “It’s the process it takes to get to goals that sets us apart, the execution on every single play, one play,one life” Notre Dame Head Coach Marcus Freeman 69 GTO NHRA Super Street Car 2860lbs 10.890@157.08 MPH in Iowa in June’23 ,157.56 MPH in Gainesville in March ‘23 |
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