[DeTomaso] Oil Restrictors Question

Charles Engles cengles at cox.net
Wed Apr 11 20:41:24 EDT 2012


Dear Asa,


              IIRC, from Dan Jones' commentary.....

The good news is that this mod seems helpful and beneficial and it is easy
to accomplish.

The bad news, according to Dan Jones from his army of real world Cleveland
engine flogging friends at real world race tracks, is that it doesn't work
and it doesn't improve the rear main and rod bearing wear problems when used
in actual racing.


                       That is the best I remember,  Chuck Engles



-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Asa Jay Laughton
Sent: Wednesday, April 11, 2012 6:17 PM
To: detomaso at realbig.com
Subject: Re: [DeTomaso] Oil Restrictors Question

Why is the modern consensus to skip the external oil line?
Just wondering.

Asa Jay

Quoting Justin Greisberg <justingreisberg at hotmail.com>:

>
> if he means the external line running from the oil passage above the  
> oil filter to the back of the block, then the modern consensus is to  
> skip that yes, I am pretty sure I did the restrictors on the 2-5 
> mains.
> tappig the passage between crank and cam bearing was quite a project
>  - hard to find the right length tap.  And then my made-in-china tap  
>  snapped in half and got stuck in the block!!!  Made for an   
> interesting night.  I got a special tool that is like a reverse   
> drill that spun into the center of the tap and backed it out
>
> From: seanmundy at hotmail.com
> To: will.kooiman at gmail.com; kenn_green at yahoo.com;   
> detomaso at realbig.com; justingreisberg at hotmail.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 15:06:26 -0700
>
>
>
>
>
>
>
> This is starting to make some sense now.  Moroso kit on the 2-5   
> mains only and fit a restrictor in the crank/cam bearing oil passage.
> I also gleaned some of that from the network54 forum.  To confuse   
> the matter some more though,
> another option the engine builder mentioned was a crossover modification.
>
> I pretended I knew what he was talking about
>
> From: will.kooiman at gmail.com
> To: seanmundy at hotmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 16:39:46 -0500
>
>
>
>
>
>
>
>
>
>
> In that case, I'd just do the pan.
>
> If you want to step it up, do the Moroso restrictors on 2-5 mains,   
> but don't do the big restrictor to the lifters.  It is supposed to   
> be for solid lifter engines only.
>
> You'll be fine.
>
> My car was 100% stock, aside from the   
> intake/carb/distributor/headers.  Okay, it was mostly stock.    
> Oiling-wise, it was 100% stock.
>
> It didn't explode, but I could watch the oil pressure drop on long   
> sweeping turns.  After I installed a large baffled pan, the pressure  
>  was rock solid.  I like mods where you see the improvement right   
> away.  With the new pan, it was a night/day improvement.
>
> I beat on my car too.
>
> More important than oiling mods is replacing the crappy timing   
> chain. The plastic falls off the cam gear and plugs things that   
> aren't supposed to be plugged.  A metal non-roller   
> non-plastic-coated timing chain set is $29.  A full roller is about   
> $150, I think.  It has been a while since I've looked.  Regardless,   
> they are too cheap to skip.
>
>
>
>
>
> From: sean mundy [mailto:seanmundy at hotmail.com]
> Sent: Wednesday, April 11, 2012 4:09 PM
> To: will.kooiman at gmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
>
>
> I don't plan on seeing a whole lot of any track time.
> I bought my Armando pan mainly because of
>
>
> reading this forum and the oiling issues with the Cleveland.
> This next engine will be a VERY large investment for me and I don't 
> want to screw it up!
>
>
>
>
> From: will.kooiman at gmail.com
> To: seanmundy at hotmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 15:54:16 -0500
>
>
>
>
> Just remember that most of the network54 guys are drag racers.  They  
> beat their cars pretty hard.
>
> You could argue that we beat ours harder on the track, since we're   
> on the gas for longer periods, plus we combine high rpms with   
> cornering.
>
> But that's assuming you beat yours on the track.  If you are mostly   
> on the street, a proper pan should be plenty.
>
>
>
>
>
> From: sean mundy [mailto:seanmundy at hotmail.com]
> Sent: Wednesday, April 11, 2012 3:37 PM
> To: will.kooiman at gmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
>
>
> Will, I have the baffled oil pan already so thats one requirement down.
> I read your posts on network54.  Lots of information there!
> Most concerns I read there seems to revolve around restricting oil   
> to hydro lifters but my
> mind started to melt after trying to get past that item.
>
>
>> From: will.kooiman at gmail.com
>> To: kenn_green at yahoo.com; seanmundy at hotmail.com; detomaso at realbig.com
>> Subject: RE: [DeTomaso] Oil Restrictors Question
>> Date: Wed, 11 Apr 2012 14:57:50 -0500
>>
>> You have to decide who you want to trust. That's the problem. We 
>> can't tell you.
>>
>> 1. If you have a roller cam, you need to make sure the oil port 
>> doesn't come out of the lifter bore. Otherwise, you'll have a loss of 
>> oil pressure at full lift.
>>
>> 2. I like the Moroso restrictors, but I don't think they are mandatory.
>>
>> 3. A proper baffled pan is a requirement.
>>
>> 4. I like the front to back oiling line, but I don't consider it
mandatory.
>>
>> 5. I did a mod described on the network54 forum where you put a 
>> restrictor in the #1 cam journal by tapping from the cam down. You 
>> put a plug in the crank journal side. I can't describe it here. 
>> There's a picture that helps a lot. This mod is not required.
>>
>> 6. Install the cam bearing as far forward as possible. Installing it 
>> far forward keeps it from leaking a lot of pressure onto the cam 
>> gear. This mod is not required.
>>
>> 7. There is a mod where you drill a hole in a plug to provide a 
>> steady stream of oil onto the distributor gear. I did not do this 
>> mod, but I think it is a good one.
>>
>> 8. Some people use grooved bearings for top and bottom on the crank 
>> or something like that. It is supposed to help.
>>
>> 9. Some bush the lifter bores. This is probably worthwhile, 
>> especially if you have a roller cam. I don't consider it mandatory,
though.
>>
>> So, the only mod that is really required is a proper baffled pan - in 
>> my opinion.
>>
>> -----Original Message-----
>> From: detomaso-bounces at realbig.com 
>> [mailto:detomaso-bounces at realbig.com] On Behalf Of Ken Green
>> Sent: Wednesday, April 11, 2012 2:48 PM
>> To: sean mundy; detomaso at realbig.com
>> Subject: Re: [DeTomaso] Oil Restrictors Question
>>
>> As a more direct approach, if someone has a Cleveland with the pan 
>> off, just measure the distance from where the tube enters the block 
>> to the lowest point of the crank throws and compare that to the 
>> corresponding dimension of the dip stick and tube?
>>
>> Ken
>>
>> From: sean mundy <seanmundy at hotmail.com>
>> To: detomaso at realbig.com
>> Sent: Wednesday, April 11, 2012 12:30 PM
>> Subject: [DeTomaso] Oil Restrictors Question
>>
>>
>> This has got to be the most confusing topic I've run into in my quest 
>> to build a 408c.
>> After spending many hours on various forums I am totally befuddled by 
>> the massive amounts of conflicting and differing recommendations.
>> I could blow up the engine with them, or without them.  At this point 
>> I wish I had never heard about oil restrictors!!!!
>> The plan for my 408 was to use roller cam/lifters/rockers.
>> I'm sure many of you have run into the same dilemma.
>> Whom do you trust or believe?
>> Thanks, Sean
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--
Asa Jay Laughton - sent from somewhere other than home
******************************************************
http://www.racingagainstautism.com
http://www.teampanteraracing.com

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