Extremely Simple Intake Pressure Test - 3000GT/Stealth International Message Center

cbatters · 03-02-2004, 06:20 PM

Was starting down the path to build Jeff's intake pressure tester tonight when I stumbled on a very simple way to do the same test.

REQUIREMENTS
1. Aftermarket boost gage (I have a 0-2.5 BAR MAP sensor hooked up to my MMCd data logger)

2. Air compressor with pressure regulator

3. Heavy duty lawn / leaf plastic bag (leave it folded up)

DIRECTIONS
1. Remove MAS from intake

2. Cover MAS with plastic bag (8 layers of plastic thick)

3. Reinstert MAS into intake

4. Tighten intake clamp

5. Pressurize intake to 20 PSI using fitting on plenum

Clint

turbojj · 03-02-2004, 06:26 PM

Quote:

Originally Posted by cbatters

Was starting down the path to build Jeff's intake pressure tester tonight when I stumbled on a very simple way to do the same test.

REQUIREMENTS
1. Aftermarket boost gage (I have a 0-2.5 BAR MAP sensor hooked up to my MMCd data logger)

2. Air compressor with presure regulator

3. heavy duty lawn / leaf plastic bag (leave it folded up)

DIRECTIONS
1. Remove MAS from intake

2. Cover MAS with plastic bag (8 layers of plastic thick)

3. Reinstert MAS into intake

4. Tighten intake clamp

5. Pressurize intake to 20 PSI using fitting on plenum

QED

Only leak I found was from the stock BOV.

Clint

crude...but effective. I LIKE THAT...I guess its really no more crude than PVC glued and screwed though. It really all boils down to necessity being the mother of invention once again. Good idea.
turbojj

jeff97vr4 · 03-02-2004, 09:31 PM

Kudos. Very clever and elegant.

Jeff

DaveRous · 03-02-2004, 09:36 PM

Cool.

widow maker · 03-02-2004, 11:58 PM

perhaps an embarrassing question, but what "fitting on plenum"are you referring to?
Thanks, and very cool
-Widow

cbatters · 03-03-2004, 03:25 AM

Quote:

Originally Posted by widow maker

perhaps an embarrassing question, but what "fitting on plenum"are you referring to?
Thanks, and very cool
-Widow

On the plenum near the throttle body there is a nipple with a 4-5" piece of tubing that connects to some hard lines. Common tap point for boost gage - good place to pressurize intake.

Clint

jeremyk · 03-11-2004, 05:42 AM

Good idea...pressurizing through the intake plenum instead of fabbing up a giant cork to go in place of the MAS.

cbatters · 03-11-2004, 06:15 AM

Quote:

Originally Posted by jeremyk

Good idea...pressurizing through the intake plenum instead of fabbing up a giant cork to go in place of the MAS.

Wasn't trying to develop a new pressure tester - I was just having a tough time getting the round PVC fitting into the the oval gasket when I got the idea of inserting a plastic membrane and using the existing MAS/clamp to secure it.

Planning to use the same technique to block off the two turbo connections to the Y pipe to test the BOV. Current pressure tester installed @ MAS does not test proper closed loop BOV operation.

Adversity the mother of invention...

Clint

tonygold · 03-11-2004, 06:41 AM

that sounds a hell of alot easier

Mad Hatter · 03-11-2004, 09:09 AM

Hey, if it works it works

03-02-2004, 06:20 PM	#1 (permalink)
cbatters Member: Burned valve club Join Date: Jun 2002 Location: Stoughton, MA Drives: 91 Stealth RT/TT Trader Rating: (12)	Extremely Simple Intake Pressure Test Was starting down the path to build Jeff's intake pressure tester tonight when I stumbled on a very simple way to do the same test. REQUIREMENTS 1. Aftermarket boost gage (I have a 0-2.5 BAR MAP sensor hooked up to my MMCd data logger) 2. Air compressor with pressure regulator 3. Heavy duty lawn / leaf plastic bag (leave it folded up) DIRECTIONS 1. Remove MAS from intake 2. Cover MAS with plastic bag (8 layers of plastic thick) 3. Reinstert MAS into intake 4. Tighten intake clamp 5. Pressurize intake to 20 PSI using fitting on plenum Clint __________________ 1991 Stealth RT/TT - Firestorm Red - 193K Miles / Original Owner Maint: Castrol 10W40 / Mitsu Filter / Rislone Replaced: 2X clutch / 3X brakes / 2X front rotors / 2X ABS HU / 1X NGK Plugs / 1X Ball joints / 2X Antenna mast / 1X Active exhaust cable / 1X Windshield / 1X Fuel FIlter / 1X Struts / 1X rear rotors / 1X Front Head / VSS / 1X rear wheel bearings / 1X Transfer case (warranty) / 1x Tie rod end (drivers side) Overhauled: Starter, IAC, BISS, CV Boots Upgrade: SilverStar Headlights / ebay "Xenon" Fog Bulbs (no more yellow!) A/F Gauge / MAP - Electronic Boost Logging / MMCd Data Logger Pending Projects: Steering Rack Last edited by cbatters : 05-30-2006 at 08:04 PM.

03-02-2004, 09:31 PM	#3 (permalink)
jeff97vr4 Verified Seller Join Date: Jul 2002 Location: Albuquerque, NM Drives: Pontiac GTP Trader Rating: (15)	Re: Extremely Simple Intake Pressure Test Kudos. Very clever and elegant. Jeff

03-02-2004, 09:36 PM	#4 (permalink)
DaveRous S.V.P. Club Founder Join Date: Jun 2003 Location: Lexington Kentucky Drives: Big Ass Truck Trader Rating: (0)	Re: Extremely Simple Intake Pressure Test Cool. __________________ -Snake Eyes, K&N FIPK, Autometer Instrumentation (Boost & A/F), Magnecor KV85, Custom Dual Stage Boostvalve.com -MBC @~14psi and 9psi, Full ATR Exhaust, Gutted Cats, Constant 12V to the fuel pump, Relocated front mount oil cooler, Intrax Lowering Springs, Porterfield R4S Brake Pads, UR UDP, Greddy Type S BOV, EK2MFG Spark Plug Plate, EK2MFG Cover Plate, 3SX Polished Intake Plenum, Corbeau GTSII Seats, Apex'i S-AFC, 3SX Poly Motor Mounts, RPS Max Series Clutch, RPS Billet Flywheel, Kormex Transmission, X-Drilled & Slotted Rotors, 3SX Stainless Steel Braided Brake Lines, Optima Redtop, DNP Y-pipe, 275/40/17's in the back, 245/40/17's in the front, Custom Blister Vents, EGR block offs and vac lines destroyed! Tunes: JVC aresonal Cd/MP3 player, JBL's all around. SOLD! Working on my new VR4, updates soon, UPDATE! Sellling it too Back in the game with a 92 R/T TT, updates soon.

03-02-2004, 11:58 PM	#5 (permalink)
widow maker I'm a Troll Join Date: Jul 2003 Location: Long Island NY Drives: 95' VR-4 Trader Rating: (7)	Re: Extremely Simple Intake Pressure Test perhaps an embarrassing question, but what "fitting on plenum"are you referring to? Thanks, and very cool -Widow

03-11-2004, 05:42 AM	#7 (permalink)
jeremyk just a guy Join Date: Oct 2001 Location: Livonia MI Trader Rating: (0)	Re: Extremely Simple Intake Pressure Test Good idea...pressurizing through the intake plenum instead of fabbing up a giant cork to go in place of the MAS.

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03-11-2004, 06:41 AM	#9 (permalink)
tonygold Verified Seller Join Date: May 2001 Location: -TEXAS- Trader Rating: (34)	Re: Extremely Simple Intake Pressure Test that sounds a hell of alot easier __________________ The Vette guys want a Viper and the Viper guys want a Supra and the Supra guys want a Z06 and the Z06 guys want a 911 Turbo and all of them really just wish they had bought a 3000GT VR4 and called it done -IPSjeff 2003-5 ??COLOR?? Benz E55 AMG --- (Future Daliy Driver--still searching) 2003 Maroon Mazda 6 --- Daliy Driver #1 (soon to be sold) 1994 Forrest Green 3.5L Stealth RT --- Auto --- Daliy Driver #2 (soon to be sold) 1992 Forrest Green 3.5L Stealth TT DR 900's (AKA TBD) 1994 Jade Green Supra TT SP77 (AKA The Russian Rocket) ~~1994 Yellow Stealth TT SOLD~~ ~~1991 Uhhh Brown? Eagle Summit --- SOLD~~ ~~1986 Old n Dirty Buick Cutlass Supreme --- SOLD~~ ~~1991 White Stealth TT--- SOLD~~ ~~1995 Red Mitsu 3000GT --- SOLD My 1st car~~

03-11-2004, 09:09 AM	#10 (permalink)
Mad Hatter below me Join Date: May 2002 Location: Holland, MI Drives: HilbilyHomeboy Crazy Trader Rating: (3)	Re: Extremely Simple Intake Pressure Test Hey, if it works it works __________________ "Mad Hatter VR4: no ITB huh? I've done it a couple times mugen3000: ive done it once with my ex mugen3000: for like 20 seconds mugen3000: then she ran away yelling that she had to poop mugen3000: and never again..." 1991 3000GT VR4 04' blue and white Gixxer 600 < 2003 Chevy 2500 My VR4 1 My VR4 2 My VR4 3 The best message I've ever gotten on myspace: "i know i uninvited you the other night but i had a dream that told me i should reinvite you again....so you can come here again on friday....as long as you refrain from using certain phrases such as "line me up some sweet ass"....k?? "