SleeperZ
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Everything posted by SleeperZ
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A bit of progress, all the engine wiring is done, all the plumbing including a new intake, cold side pipe, BOV, 440cc Supra injectors, pallnet O-ring fuel rail and turbo oil line. I still have the gauge panel, the LC-1 wiring, and the MS-III end of the harness to complete, then hopefully it will be a smooth transition to tuning.
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I have the twin air horns, the horn circuit has no problem driving the compressor. Two tones, very shrill, gets immediate attention!
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This is something a troll would say. If you want to educate us on "the science of ceramics", you need to be able to point out the fallacies in the discussion, and provide some facts to back up your position.
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In that regard, coating can only help with detonation resistance, as it slows thermal transfer to the piston crown. Since there is less overall heat transfer and more work extracted, your overall combustion chamber temperature should not increase as a result of piston coating. It is also much easier to transfer heat out of the head than the piston.
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I agree, it looks cool as hell, but it would only work on a drag strip. No one would want to drive it for more than a minute.
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Other effects may be different, but fundamentally piston crown coating and oil squirters are doing the same thing; keeping the temperature of the piston down. With the coating, more of the heat of combustion can be used for work, where oil squirters just help conduct the heat out of the piston as waste. Minor differences unlikely to be quantified.
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Very nice!
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Only the first. You might check the permissions of your host site.
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Your L28ET from an automatic will not have a flywheel. You have to remove the flex plate and the spacer, then bolt on the 225mm flywheel from the NA L28. If you get a flywheel from a manual turbo engine, it will be the 250mm type. Either unit can be fitted with a better clutch, so if you don't get a turbo flywheel, you can work with the NA unit.
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I've researched the Supra 7MGTE injectors and have the baseline numbers. With 12V applied, opening time is 1.15mS, at 14V it is 1.05mS. Closing time is 1.1ms. I'm not sure how to get the deadtime with those numbers, it doesn't look like TrumpetRhapsody added them. I am going to try 30% PWM after 50uS.
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Hey, that wheel is broken, it's missing a tooth....
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Please keep us up to date with how that works. I will be applying power to my new MS-III maybe as soon as this weekend. I have my 440cc injectors wired in two banks as Cygnusx1 mentioned, and it would be great to have some tested numbers to program in from the start.
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L28e turbo w/76 ecu &stock injectors need help
SleeperZ replied to BrandonR.'s topic in Nissan L6 Forum
No, locking the weights disables the centrifugal advance (mechanical advance with RPM). The vacuum advance is separate, and advances the timing with lighter load. -
Well that's news to me.
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Very nice job, that will be one heck of a track star!
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This hard.
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I think that turbo needs an external wastegate. For modest power levels it's less complicated and less expensive to keep the internal wastegate. My turbo was built specifically from the stock turbo, so I still have the T3 turbine with the 5 bolt internal wastegate. I would say 10 psi is as much as one can safely run without an intercooler, but that's not going to come close to 300hp. You really need an intercooler for that.
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I bought a T3/TO4B (V trim) from Motorsport YEARS ago, and it's been an excellent turbo, tons of torque, dynoed 313 to the wheels with a stock engine, and it doesn't require manifold spacers and only slightly modified intake plumbing. The 50 trim E compressor is a good unit too, but it requires spacing off the exhaust manifold to clear the intake.
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That intercooler will work just fine. You might want to think about plumbing a recirculating blow off valve, I see no provisions for that in that system. Stock manual transmissions work well at those torque levels.
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Box stock engine. No building needed.
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Received my MS-III kit on Saturday, it's completely assembled now, I will be testing it this week. I decided to install the ignition driver and drive the coil directly. I have the main relays wired and operating. Still have tons of wiring to do. Here are some pictures of the current state of affairs. MS-III kit built. Injectors, sensors in pigtail state. Relays installed in factory location. New intercooler plumbing.
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I took a photo of my shifter and how it sits in the tunnel. As you can see, the front shifter mounting bolts are under the sheet metal, and they have about 1" of clearance to the top of the tunnel. I was able to remove the crossmember and drop the transmission at the rear, pivoting on the engine mounts, to get enough access to install the shifter.
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MS useful thread links (look here before searching)
SleeperZ replied to mobythevan's topic in Megasquirt
They seem to be taken down. -
I googled the 440cc Supra injector and found this thread. Good info on that specific injector: Original post: http://www.toymods.org.au/forums/tech-conversions/64120-7m-gte-stock-440cc-injector-latency-dead-lag-time-2.html Linked post: http://www.supramania.com/forums/showthread.php?133910-Stock-440cc-injector-latency-%28dead-lag-time%29
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No kidding! 10W60? wow.