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07-13-2008, 01:51 PM
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#4 (permalink) |
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It's all stock.
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Re: 5 psi tops on dr1000! help
The wastegates were plumbed according to the diagram that came with them, which did not work very well. Then we found a digram from someone else's thread that was backwards from the first diagram, that configuration did not work much better.
The tune is fine, and there is no ginormous boost leak. The SBC-id was adjusted in many increments from 10-80 on the gain with minimal changes, and the boost setting has been adjusted in many increments from 45 to 75 with minimal changes. The engine currently is boosting 8.4 psi @6000 RPM. A good manual boost controller from another car was tried, and it had no effect. I'm a little hesitant to unplug the wastegates on his car, but I'm getting to that point very quickly......
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Handing out reality checks to "500HP Hondas" for 8 years and counting.
'92 Sandstone Grey 3000GT VR-4. K&N filter, Spec 5 clutch, NGK plugs/wires, Custom EBC, Greddy E-manage Ultimate, built 6G74 engine (in progress), Turbonetics ceramic ball-bearing T-70, custom intake/exhaust/intercooler piping (still plumbing those), 24"x12" FMIC, Brembo rotors, Stillen pads, E-bay Ground kit, 2nd gen shifter, HKS SSQV, Denso 660's, twin Walbro fuel pumps, GTO center garnish, eK2 EGR block-off plates, Prosport gauges: [oil press, fuel press, manifold press, oil temp, water temp, volts], Toni's interior LED conversion (still installing), forgot the rest. '91 Firestorm Red 3000GT VR-4. K&N filter, eK2 poly engine mounts, Seattle Short Shifter, custom MBC, Spec 3+ clutch, Forged crankshaft, Tein S-Tech springs (front only), DNP Y-pipe, TD04H-13T's (with 13T wastegates), amber taillights, gutted pre-kitties, eK2 EGR block-off plates, Prosport gauges: [oil press, manifold press, fuel press, water temp], Megan Racing downpipe, Borla exhaust, NGK plugs, MSD wires, Greddy type-S BOV, Greddy E-manage Ultimate, RC 550 injectors, Denso "Supra" fuel pump, MSD DIS-4, Brembo rotors, Stillen pads, forgot the rest. '90 Fiji Blue 300ZX TT. Stillen front bumper/nose-panel/wing/control arms/sway bars, Greddy intake/exhaust/clutch/fuel injectors, Super Autobachs strut bars, Brembo brakes, Energy Suspension bushings, Tokico shocks, JWT ECU chip, Bomex rear bumper, Nismo gound kit, NGK plugs, IPS short shifter, Custom interior, forgot the rest. '92 Black MR2. Wife's car. K&N filter on a custom cold-air intake, some interior stuff. |
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07-13-2008, 02:30 PM
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#5 (permalink) |
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Verified Seller
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Re: 5 psi tops on dr1000! help
Take the boost sense hose off and apply a regulated air source to it.. Find out what pressure the wastegates open at. That way you can see if they're over-active without leaving the shop..
You can also temporarily tee a pressure gauge into the wastegate hose, and see if they're getting pressure on the test drive..
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Because One broken Stealth just wasn't enough...  I made twins.. |
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07-13-2008, 03:01 PM
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#6 (permalink) |
 Supporting Vendor
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Re: 5 psi tops on dr1000! help
Seeing how you have 14psi WG springs, most likely only thing that could be causing your problem is a HUGE boost leak.
AS for how to hook up the WG's I explained to you over the phone how to do it, it's not hard. The Side ports go to striate manifold pressure, and the top ports go to the “out” port on your boost controller (with the “in” port going to your IC piping). Like I told you on the phone get these from DIFRENT sorces. If you only hook up the side ports to manifold pressure and nothing to the top ports you will make 14psi. Wait a second, did you remember to put the lower rings in the WG's? the ones the valve seets on? If you forgot to install those your not going to be able to make much boost. because the WG will basically be open all the time. But no matter what the problem is for gods sake stop driving the car till you figure it out!!! If you do have a boost leak those turbos are not going to last long overspeeding trying to pressurize the planet earth.
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 93 RT TT 8.74@168.5mph @3600ft Worlds Quickest and Fastest 3000gt/stealth 95 3000GT VR-4 10.56@136mph- 714 AWHP & 607 AWTQ (dr-900's) (sold) 92 Stealth RT TT 10.69@133.45mph @3600ft (dr-800's) (sold) 95 RT TT 10.88@129.1mph @3600ft (sold) 95 RT TT 11.9@118mph (stock injectors) 2004 F350 Harley 14.4@90mph at 3600ft 2007 Charger SRT-8 12.3@120mph@3600ft, Heads/cam, NOS 548 RWHP 2001 Dodge Viper GTS Heads/cam 612 rwhp & 619 rwtq There are 2 ways to make a car fast. #1 use the Right combo of parts #2 Throw so much money at it that the car has no choice but to be fast. I choose #1 Click for US 3S Fastest ET list Better to be a racer for a moment then a spectator for a lifetime "Nothing in the world can take the place of persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education alone will not; the world is full of educated derelict."— John Calvin Coolidge |
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07-13-2008, 03:04 PM
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#7 (permalink) | |
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Supporting Vendor
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Re: 5 psi tops on dr1000! help
Quote:
And a car can be tuned with a huge boost leak. You need to pressure test your system. Last edited by SnakeSkinner : 07-13-2008 at 03:32 PM. |
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07-14-2008, 05:42 PM
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#8 (permalink) |
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Supporting Vendor
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Re: 5 psi tops on dr1000! help
Talked to customer, his car was running on 4 cil. his Injector connectors were not connected. Guess it's hard to make boost with only 1 Cil, on the rear bank firing lol.
Problem fixed and car running fine and making boost the way it should now. |
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