Mike Janis - IHRA Pro Mod

Two Time IHRA Pro Modifieds World Champion, Mike Janis uses a GZ Motorsports Super Pro Vacuum pump kit on his blown alky burning Pro Mod.

Janis' team discovered the new pump can handle the crankcase blowby generated by his Pro Mod during dyno testing and will be using the New GZ Motorsports VP104 Super Pro Pump during the 2010 season.

Sean Thomas 78 Malibu

"Greg, Here's a couple pictures of my 1978 Malibu.

The car has a 454 with low tension oil rings for maximum results using your pro pump. I got the car together and made it to Woodburn Dragstrip. With the help of your pro pump we ran a best of 10.11 @ 132 and I have no doubt there is more in the combination.

As always the pump runs flawlessly, keeps the motor from leaking oil, and pulls vacuum at idle all the way through the traps."

Sean Thomas
Grants Pass, OR

Chris Darmanjian

Your pump believe it or not pulls about 12 inches of vacuum. I've always been lucky with that pump... I talked to you in the past about an upgrade but we both agreed that I really didn't need to.

My ride is just an old school back half ladder bar, nothing fancy but works well. If you think my car is good enough for your web site i would be honored to have it on there.

Driver / Owner: Chris Darmanjian

James Day

"The vacuum pump definitely made a difference. The car ran a 10.295@128.75 mph without the GZ vacuum pump active and it went a 10.149@131.2 with the belt on and pulling 10" at 6500rpm.

We run a stock style piston tight piston/ring set up, but it sure liked the new vacuum pump.

The motor has over 568 passes after this past weekend. I'm glad we got her all lined out. My new engine is going to love the pump as it's being built quite loose. Thanks again for all your help.

Take care,
James Day

George Carey NMCA X/S #4747

"After fighting my combination, along with its aggressive oil leaks, we decided to go with a vacuum pump from GZ Motorsports. Thus far we have seemed to eliminate the problem along with picking up .500 on motor alone. Thanks for all of your help, seems to be the best unit for the money out there!"

Brian Sutton

"I like the new GZ pump a lot better than my old Aerospace pump. It pulls so much more vacuum that I have to turn the relief valve most of the way up"

Brian competes in the MAKO Outlaw Series in the Real Street Class. He's using the VP101 pump and the new UVPM mounting system on his Big Block Chevy..

Marc Schankweiler

On the chassis dyno, running motor only we picked up 23 horsepower at the rear wheels with only 7 inches of vacuum. The car went from 599 hp to 622 hp. A considerable jump for just bolting on one of your Pro 30cfm pumps!

Shannon McGovern

Very sweet pump! We have 400ci small block chevy with pro race fogger and plate systems. We spray 350hp shot alltogether. 800hp at rear wheels with sportsman pump. Awesome customer service... GZ Motorsports knows there stuff. I just told them what I wanted to do and was set up right the first time!

Andy Frost AKA "RedVictor" and The Worlds Fastest Vauxhall

Andy Frost - Originator of the "Worlds Street Race" purchased a VP104 and did some testing on the dyno. Andy found his VP104 installation was worth 24hp N/A and helped level out the torque curve.

Andy says - "The intake manifold is dry as a bone! It used to be wet with oil after a few runs due to big ring gaps,big cylinders,clearance of pistons and tons of nitrous..."

Andy's car is a 1972 Vauxhall VX4/90FD, 600ci BB Chevy, 2 Speed Powerglide, 93 octane pump gas, MT sportsman pros and mufflers. 2004 best 8.39@170

Naturally Aspirated Dyno Test Results
Without Vacuum Pump	With Vacuum Pump
762ft lb@5100	772ft lb@5100
865hp@6700	890hp@ 6800

Joe Sherman, Joe Sherman Racing Engines

“I am really impressed with the GZMS VP101 Sportsman Vacuum pump and kit. We installed it on a 347 cubic inch Small Block Ford build up we did for Ford Muscle Car Magazine.

When we dyno’d the motor it made 702 hp without the vacuum pump and 735 hp with the pump. That’s a 33 hp gain with just the pump. We also noticed an increase in the rpm at which peak horse power was made.”

The engine is shown on Joe's website at www.joeshermanracing.com
Joe Sherman Racing Engines
1000 Oaks California

Patrick A. McFadden
Owner of SHIFNOID

“Here it is!!! This is a 60 over 350 SBC motor with SRP flat top pistons, 64cc Motown 220 heads,.640-.660 lift crane solid flat tappet cam and Hilborn injection on gas.

I broke this motor in without the GZMS VP102 Sportsman vacuum pump. The time ticket enclosed shows a 6.47 at 109mph 1/8 mile without the pump. With the vacuum pump the other time ticket shows a 6.19 at 114mph 1/8 mile. About 3 tenths and 5mph faster. I run this FED in all high gear. It has a powerglide with a trans brake that will lock in high or low. I am very happy with my GZ Motorsports Sportsman Vacuum pump and am purchasing a complete Sportsman Vacuum Pump Kit for my Blown SBC in a 55 Chevrolet that I both drag race and drive on the Street (occasionally)"

Todd Geisler's 79 Malibu

“The car ('79 Malibu) has a destroked pump gas 414 ci bbc.

The car weighs 3580 lbs w/driver and currently runs 10.81 @ 123 with a 1.49 60' running on BFG drag radial street tires.This is in true street trim with exhaust exiting over the rear and behind the rear tires.

In race trim the car has run 10.66 @ 125 with a shorter muffler/exhaust setup on 9 x 30 Hoosier radial slicks, 1.47 60'.

We found a solid 20-25 RWHP on the chassis dyno after the season was over...haven't had a chance to make test passes to see what ET improvement that added power provided (I'd venture to guess a tenth or 1.5 tenths and possibly 1 or 1.5 mph).

John Heard's 1971 Nova

"Greg thanks for all the help getting my Vacuum Pump setup. We finally started getting some hits on the car and have got her running in the 5.20's@136, can't wait to bolt it to a bigger, badder bullet. Your pump has worked great, very pleased with it!"

Hobart Taylor's Nova

“Greg, Not too many 60 + 400's out there with 900 laps on them. It has to be the pump!

See ya, Taylor”

This nice little Nova runs a 426SBC 60 over 400, 3.875 stroke, 6” rod on alcohol.

Joe Stiles's '71 Camaro

“Thanks GZMS! After two seasons, the VP101 Sportsman Vacuum Pump is still working great. Will maintain 12” during burn-out.

Update...

Hi, Just wanted to give you an update on Joe's car. It's best ET is now 7.94 @ 172mph (10/10/04). The pump is still working great into it's 4th year.

Joe's sister-in-law.
Kelley Stiles

• Joe Stiles: Owner/Driver
• Sponsors: - Ed's Auto Conversions, Automotive Engine Specialists
• “AES“ Applied Nitrous Technology, 3,450 lbs with driver 565 BBC by AEC, Turbo 400 w/ Coan Converter, Round Tube Back Half 33 x 14.5
• Best ET/mph 7.94 @ 172

Ed Dobias NSCA H/S #7

“I liked the idea of having a rebuildable pump without having to run an oil separator between the V/C and the pump. Have about 150 passes and still making 16 inches of vac.”

• Ed Dobias: Owner/Driver
• Sponsor: RcCrafters
• Crew/Fabrication: Craig Nolty
• 3,205 lbs with driver, 395 SBC by BES, Coan 3-speed, Mini-tub/ladder-bar/coil-over,29.5 x 10.5W
• First NMCA Event Attended was 2001 in Atlanta
• Best ET/mph 9.21 @ 145 no NOS

Edgar Negron's 347 SBF Mustang

“Hi there, Greg! I installed the GZMS VP103 (Pro) Vacuum pump on my 347 Small Block Ford in my Mustang. Well, I took my car to the dyno, and I told the guy that the only change was a vacuum pump, so we looked up the last dyno and compared it with the new pull.

The old dyno pull was 342 hp at the wheels. The new dyno pull off the trailer was 383 hp corrected. Then we gave it a bit more fuel and dyno pull netted 391 hp.

That is almost 50 hp gain with just the vacuum pump. I disconnected it and it was 345 hp, hooked it up again and it was 391 hp again. Then we did a dyno pull with nitrous, a 225 shot, resulting in 614 hp and 559 ft lbs in 1000 rpm increments from 5250 to 5800 sound with nitrous.

Pretty good for a 347 CI Small Block Ford!

Thanks again, Edgar Negron”

Courtney Paulos's '86 Omni

“Greg, Since I put your VP 103 Pro Pump I have gained, I believe, 3 mph more. I was running 8.60s 8.50s. Now the car runs 8.40s. I recommend this pump to any racer. The GZ Motorsports Vacuum Pump System is money well spent.

Aloha, Courtney”

1986 Dodge Omni powered by a SBC 434 on alky with AFR 227 heads, a Ron’s Flying Toilet Alcohol Fuel Injection System, Erson Roller Cam with 712 lift. Total car weight is 1,700 lbs w/SBC and has a Dana 60 Rear End with 4:88 gears.

Bruce Akaji's '65 VW Bug

"Greg, Your VP 101 Sportsman pump gained a mile per hour and a tenth elapsed time. I used to run 10 teens, now I run 10 0's in my tube chassis 65 VW bug. 2800 cc Autocraft motor, naturally aspirated. Bruce"