[hill461]

I have been considering an external oil pump and have a few questions.can I modify my custom moroso oil pan to use with an external oil pump or do you need a complete different pam. where does the pump pull oil from the pan . can I run a vacuum pump with it or does the pump pull vacuum itself. is there a particle brand that is recommended .
thanks hill 461

[WARPed]

I modded my existing pan

[hill461]

Warped
How did you modify your pan and what brand pump you running. Are you happy with it
Hill461

[Jim Zeek]

I have a pan for a external wet sump for a bop belt drive setup for sale

[screamingchief]

As I understated this,yes you can modify the current pan to run the external pump.

Where/how you pull oil from the sump is only limited by your imagination and fabricating skills,from my study on the subject,there really is no blueprint for this sorta deal.

And yes,you can run a seperate vacuum pump if you so choose,but FYI there are pumps out there that incorporate a vacuum section to a single stage wet-sump external pump,IIRC Peterson Fluid Systems makes these.

Others may make them as well.

HTH

Bret P.

[cfmcnc]

WE have had better results with seperate pumps ie Allpontiac Grand Am ,Possibly the wet-vac external pump was not as efficient at pulling vacuum maybe a different brand would be better,had similar results with other engines as well.Just finished a BBC with Moroso Ext pump and Enhanced 4 vane ,590 cu-in.Bill C.

[hill461]

do the pumps that do pull vacuum pull a measurable amount . I don't suspect they pull like a separate vacuum pump . I run an alternator and don't know if I have enough room to run pulleys for both pumps
hill 461

[WARPed]

We used a Canton pan but it really has nothing to do with what external pump you use. The Wet/Vac pump was not worth the $$$ and time put unto it as it did virtually nothing in the way of a vacuum pump - and then you can not just cap it off either. So don't bother with the combo pump as posted earlier.

[hill461]

thanks to all for the information. thanks to warped for the pic of your oil pan that looks easy to replicate. I will make my mind up as motor goes together , waiting on car to come back from shop for headers . cant do much without motor plate , once I have plate on and cam degreed I can do a mok up to see if I have room for the three pulleys I will need to run.
thanks to all
hill461

[WARPed]

The baffle plate you can partly see in the pic got welded up to fill in the opening - making the entire plate covering the sump. we then put a few louvers in it to facilitate oil return. In this case our pump was mounted on the driver side of the motor so we had to make sure the starter would not be in the way of our oil lines.

[warriors revenge]

I have a Peterson wet vac external pump.... any competent fabricator/welder can modify your pan... it pulls oil from the sump like a in pan pick up would... you will want to use one of the fittings they install in the pans for the external pump though.... not just put a -12 bulk head in and expect to be all good..
I love the Peterson pump... are you looing for one of those?

[Dave Polichena]

I bought an aluminum pick up from Moroso that comes with a male bung and welded it on the side in the sump area in my Stefs pan. I don't have any pics but it is pretty self explanatory once you get it, take a look at other pans for a dry sump to get an idea. I went with a Dailey pump. You will need a remote oil filter too. Don't forget about a mandrel either.

Don't let the price of the pump be your guide of how much your going to spend, brackets, mandrels, pulleys, belts, hose, fittings and such will add up quick!

[hill461]

Warriors revenge
Yes i am looking at a Peterson wet vac pump mostly because i don't think i have enough room in front of motor for three pulleys. Do you run a vacuum gage if so what kind of vacuum does it pull
Hill461

[WARPed]

Re-read messages #6 & #8 , the Peterson wet vac is a waist of time and money as far as a vacuum pump goes. been there - done that.

[hill461]

warped
I do appreciate all the coments I have received. post 11 loves his Peterson oil pump . I am just shopping for information right now . I am aslo looking at a titan pump . I have been running a butler blueprint pump until now , I know there are better pumps out there . I already have a new moroso custom oil pan only a year old , it also looses pressure under heavy breaking .I also run an accumulator to help with this problem . I still havnt seen anybody post what vacumm these pumps pull also a factor in my decision . I have an almost new moroso three vane vacumm pump that pulls oil out of motor everytime I have tried to run it . I have never figured out why it always pulls oil out of the motor. what I am shooting for is the best of both worlds . if these pumps don't pull vacumm I don't know that I want one
like I said I am looking for information on this type of pump and all comments are helpful and appreciated
hill461

[warriors revenge]

WARPed.... what was your experience with the pump, and what were some of the specifics of your combo? what % of the engine speed were you spinning the pump? weight oil? how sealed up was the engine? yes cork gaskets can seep air.. how good of ring seal, etc... many diff things go into how good just about anything will work on any given combo.... were you told/expecting unrealistic results? how much vac do you think you need??

Hill461 you may want to look into an elect vac pump... WARPed you may also want to look at one of those?

[mike leech]

Originally Posted by hill461

Warriors revenge
Do you run a vacuum gage if so what kind of vacuum does it pull
Hill461

From what I've seen not enough.....7" and not on my engine. The few i've seen try it were disappointed and had to do something else


My vac only moroso....17"

[GTOGEORGE]

Hill,
How many carbs you going to run this year?


GTO George

[WARPed]

We were not able to get anything above about 5" and we were going for 10-12".
On the dyno we ran it with the pump and also an open system and there was no difference in power. We then hung a known vac pump on and with 10-12" we netted a 14-16hp gain. These tests were done on my new built 505. I believe we are driving the pump at ~50% which is typical for this wet/vac pump IIRC. Valvoline VR1 20-50 - we measure oil pressure at the end of line via the oil passage on the passenger front on all IA blocks giving us 50-53 psi at speed when hot.
The worst part is after we find out you can't use the vac side of the pump you can not just cap off the fittings and you have to allow that pump to get some oil per Peterson.

[hill461]

Gto George
Im looking to run two 1150s . That is if they both fit without modifying the windshield firewall if that's what you want to call it . Won't know till motor is in the car with intake on to check clearance
Hill 461