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Thread: how to leak test blow thru setup

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    how to leak test blow thru setup

    How would I go about leak testing on my blow thru setup

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    Forum User Not Verified Feedback Score 3 (100%) Sin'sVr4's Avatar
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    i would like to know this also

    1/4 mile 11.80 @117mph. 551whp 641trq @ 26psi E85 tune, MTC 19T-HLs, forge 15psi spring wastegates, 780 PTE inj, 3SX Fuel loop, ss fuel lines, Engine built by Laniers Speed shop, block bored .060 w/ chromolly rings, weisco pistons, 3sx custom forged rods, forged crank, HKS DLI, AEM EMS, AEM UEGO wideband, prosport oil and boost guages, aeromotive 1000 FPR, Dejon blow thru twintakes, Walbro E85 400 w/ 3sx hotwire kit and custom an fitting fuel pump w/ STM filter to pump line, CXRacing FMIC, Megan Racing Aluminum radiator, IPS custom downpipe, Borla 3" exhaust,Greddy profec b spec II EBC, Blitz SS BOV,R1 Drilled slotted rotors, Drag DR-31 rims, RPS stage 4 unsprung clutch,

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    I guess we could always put the stock bubble and pipes on and do that but what a PITA

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    Forum User Not Verified Feedback Score 3 (100%) Sin'sVr4's Avatar
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    i dont have my bubble anymore, but sure I could get one. I think im gonna fabricate a pressure tester for blow thru set ups.

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    block off one turbo with a rubber pipe cap. Then build a circular pressure tester for the other side like this:

    Intake Leak Pressure Tester

    Parting 6 speed
    Pampena 3.5 Stroker, GTX 2867 Gen IIs, AEM Series2, oohnoo SMIC, DN Hardpipes, FIC 1650s, Walbro 525, aermotive fpr, Dejon intake pipes, Tial Q, Koyo Rad, Samco Hoses, Stoptech 332mm fronts, HKS GT4 Coilovers, Spec 4+ LW, JDM 6 Speed, Billet shift forks, Pampena brace

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    Forum User Not Verified Feedback Score 0 Ultimate's Avatar
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    Tried to find it on this site, but only found it on the other site.

    3000GT/Stealth International Message Center

    92 Red VR4 - BPU: Sold
    93 SS VR4 - BPU: Sold
    94 VR$ - Not Stock

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    Forum User verified Feedback Score 1 (100%) thor'svr4's Avatar
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    go to the hardware store and buy a valve stem and a pvc cap




    drill a hole in the cap and push the valve stem through it. then just remove the ic pipe going to the maf and put in the pvc cap. pressurize and bam your done.
    the basic go fast bits...
    forged short block, Billet DR1000's, 680cc injectors, meth inj, FMIC, MAFT, Apexi Neo, hotwired 255lph fuel pump.

    Tuned by Ray Pampena

    Just a fun Daily Driver.

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    SKADOOSH!!! verified Feedback Score 1 (100%) J_Parker's Avatar
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    Block off the least accessible turbo, then fit a cap with a valve stem onto the other.
    Photobucket

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    Be VERY careful that those caps don't blow off the turbo and fly around - I did a similar tester for my evo and somewhere around 25psi the cap popped off. Scared the peanuts out of me. The black couplers should be right near the PVC caps.
    1995 VR4 Coupe

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    One fix at a time verified Feedback Score 4 (100%) TurboSinceBirth's Avatar
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    I have a Rob Beck pressure tester that fits in the stock air bubble. I ended up getting a 3.5" to 3" reducer and a 3" cap so I can pressure test my blow-through setup. I couldn't even build any pressure because it was leaking out my MAF sensor so I'm going to see how well I can get it to seal up. You can build a pressure tester pretty easily just block one of the turbos off.
    95 RT/TT Billet TD04s E70, DW1000cc injectors, ARC-2 with 92mm maf, 3SX fuel rail loop, hotwired Walbro 416/485, 3" FMIC, single small Krank vent, DR 3.5" downpipe and cat-back, DNP 02 housings, Hallman Pro MBC, BlackStealth LCDBC, AEM wideband, AEM oil pressure, Apexi S1 coilovers with SCE EVO 8/9 adapters, 3SX adjustable control arms, Spec 3+ clutch, Maximal solids/3SX poly motor mounts, Setrab custom SMOC, stock motor 127k miles, stock drivetrain.

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