[Tom McQueen]

Met with my engine guy yesterday. He suggested I might want to think about running a vacuum pump. I know nothing about them, though I do have a basic understanding of what they do. If I use one, it will need to be durable enough to withstand street use without needing a lot of maintenance. Feel free to recommend a brand/model. First hand experience only please.

[66PROGTO]

I installed a Moroso pump last summer. I got the entire kit from Butler Performance. Takes 2-3 hours to install and has all the brackets, hardware and -10 hoses and fittings. The best thing I ever did. No more oil leaks or blowing oil through the breathers at wot.

[Ron H]

Talk to http://gzmotorsports.com/ they will get you set up.

[JKrull66]

Also useing the kit from Butler (3 vane). You might be surprised how small of a leak can zero out your vacuum reading. Also make sure you draw from an area shielded from the oil.
Good luck.
John

[Keith Seymore]

Originally Posted by Ron H

Talk to http://gzmotorsports.com/ they will get you set up.

Agree -

Originally Posted by JKrull66

Also make sure you draw from an area shielded from the oil.
Good luck.
John

And - agree here too.

K

[Tom McQueen]

Ive looked at Star, Aerospace, GZ and Product Engineering. Havent made my mind up, but Im leaning towards this one;

http://www.product-engr.com/vacuum_pump.htm

I have read a lot of positive feedback from users of their fuel pumps, and its the only vacuum pump Ive seen that states as a feature 'Continuous duty'.

Have a setup question. Is it better to use a smallish pump with no regulator which would only produce max vacuum (~12-15#) in the upper rpm range? Or use a larger pump with a regulator that hits the same max vacuum number at a lower rpm and holds that vacuum as rpm's increase?

[mgarblik]

We have been using a Moroso 4 vane for over 10 years in a drag only application. Works great. However, I have had it apart numerous times to clean and inspect it. It uses high quality anodized aluminum components throughout, nice thick vanes, torrington and needle bearings on the shafts. I can't think of any reason why it would fail in continuous duty. Not much to go wrong in there.

[goatracer]

Originally Posted by Tom McQueen

Ive looked at Star, Aerospace, GZ and Product Engineering. Havent made my mind up, but Im leaning towards this one;

http://www.product-engr.com/vacuum_pump.htm

I have read a lot of positive feedback from users of their fuel pumps, and its the only vacuum pump Ive seen that states as a feature 'Continuous duty'.

Have a setup question. Is it better to use a smallish pump with no regulator which would only produce max vacuum (~12-15#) in the upper rpm range? Or use a larger pump with a regulator that hits the same max vacuum number at a lower rpm and holds that vacuum as rpm's increase?

Unless you really want to spend $750, I don't see why a standard Moroso 3 vane won't work for ya. Billet body, hard anodized, carbon vanes, "self Lubricating", etc...

JMO,
Bryan

[rumair]

i had the moroso 3-vane kit from butler on my car and was very happy with it. best thing i ever did was send david my valve covers to make sure the oil control was right the first time. placement of the baffle is muy importante!

[67Beast]

Originally Posted by goatracer

Unless you really want to spend $750, I don't see why a standard Moroso 3 vane won't work for ya. Billet body, hard anodized, carbon vanes, "self Lubricating", etc...

JMO,
Bryan

X2works well

[WDCreech]

In 2004 I got a modified Ford smog pump from Steffs. It seized in about half of the race season, so I got a Moroso and have been running it ever since.

[Probird]

What are you guys doing to seal the engine without a dual lip seal? I can't get mine to pull much vacuum. Put the seal in backwards?

[dammen8]

I run the BOP seal installed correctly and have no problem pulling 17-18" with a GZ 104 pro pump... would have pulled more but I could not shim the regulator higher.. Not bad for a inexpensive pump.

When I assembled my engine I put some regulated air pressure into the crankcase, then I sprayed all the surfaces down with soapy water... you would be surprised what you find... even found a couple pin holes in my canton pan where it was welded together...

I have it regulated to 10-12" ... when I regulated up to 17-18" it made 4hp more just for your info..

Chad

[Jim Robertson]

Star pumps are working very well on our personal engines and our customers. At least 10 in service at this point. Used others but Star is outstanding quality and workmanship throughout pumps, tanks, mandrels, alternator pulley, etc. He machines a very small chamfer in our Pontiac crank trigger wheels to allow fit and has a matching alternator pulley set up that all bolts up together. Also his mandrel incorporates a hex head drive to allow manually turning the engine over. Top shelf products...
Never had a problem pulling 12" vacuum when using a BOP seal installed as directed and using "Right Stuff" sealer.

[roadrage david]

this was my set up befor we disided to build a all out GT roadracer
http://youtu.be/LkLQXSygmQM we tunned the pump to pull no more then 9 inch of vacume at 6000 rom when road raceing, the star pump hase a internal bij pass ...

[bryansMtngto]

Originally Posted by roadrage david

this was my set up befor we disided to build a all out GT roadracer
http://youtu.be/LkLQXSygmQM we tunned the pump to pull no more then 9 inch of vacume at 6000 rom when road raceing, the star pump hase a internal bij pass ...

Just watch the vid or your engine compartment Very nice and clean set up. Looks sharp.

[mysticmissle]

Originally Posted by Tom McQueen

Ive looked at Star, Aerospace, GZ and Product Engineering. Havent made my mind up, but Im leaning towards this one;

http://www.product-engr.com/vacuum_pump.htm

I have read a lot of positive feedback from users of their fuel pumps, and its the only vacuum pump Ive seen that states as a feature 'Continuous duty'.

Have a setup question. Is it better to use a smallish pump with no regulator which would only produce max vacuum (~12-15#) in the upper rpm range? Or use a larger pump with a regulator that hits the same max vacuum number at a lower rpm and holds that vacuum as rpm's increase?

You should pulley it so it achieves the most vacuum u want at the operating rpm range. If you pull high vacuum at low rpm your wrist pins may gall from lack of splash oiling. If you get the pins coated it will buy you some insurance. If you regulate higher vacuum down it will work but it's an extra piece in the system you do not need if properly pulleyed. One less piece to fail

[cfmcnc]

We have used them all with good results except Aerospace did not look good after 1 year of service.The Allpontiac Grand Am has a Moroso 4 vane,Don Green has a Product Engineering,the best bang for the buck is the Moroso,Star and Product Eng are both priceir but well built.We manufacture a combo valve for vacuum pumps that is both an adjuster and a safety blow off valve in case the belt or pump fail ,its the only one that will do both.Bill C.

[bigchief468]

For street use I would not use one. For street use it does not justify the cost. If you "must" have one, to get full benefit, you should install low tension rings and I use Moroso part# 22642 with good results.

[Ron]

Moroso in a race only application. Pump has been there for lots of years and it still works perfectly. After every round I spray brake cleaner into it to keep carbon from building up. Tore it apart last year just to look..no issues.