speeder

You have made great progress in the past year or so - I'm glad the car's not totalled. That's the right attitude - Bring it back better than it was.

Looks like my old wheels have made quite a journey! Enjoy!

The GM IAC is a stepper (4-wire) not PWM (2-wire) like Ford IACs.

My car has the Lexus GE with GTE rods and pistons. Cruising at 80 mph is almost 3000 rpm. Very comfortable except for the exhaust drone that will be fixed very soon.

The 3.15 with R154 looks good IMO- My IS300 has a 6-speed with 3.13 rear gears and, to me, has the most perfectly spaced gears possible. There's a lot of shifting going on, however. Given the much lighter weight of the Z, You could want some longer ratios in the lower gears of the R154, but I think you will like it. Your turbo motor will love that 3.15.

Got it. My primary goal was to be able to datalog WBO2. This was accomplished by setting up an analog->digital input with the "UEGO" option, then an option for O2 sensor will appear in the "Sensor Calibration" box. I selected "Haltech fuel pressure sensor" (yeah, I know) for a calibration and it put in a linear 0-5V for 10-20 AFR calibration. I then programmmed the LC1 for the identical curve on one of its outputs. Now a big WBO2 display (in AFR) is available as a data page and also as a datalog item. This display tracks the Innovate's gauge values perfectly. The secondary goal was to set up closed loop O2 feedback using the wideband. It apears that this can only be accomplished by using the shielded cable O2 input. For this I used the other output from the LC1 programmmed with the standard simulated narrowband 0-1V curve. I'll be setting up the O2 feedback in the next couple days. Being an Electromotive guy I find the Haltech software to be somewhat flukey and counter - intuitive, but maybe familiarity will soften that opinion. Serious street tuning on the Lexus GS300 (2JZ, T74, 1000cc injectors, converted from auto to R154 5-speed by Rick) is now underway. This big beoch should haul some @ss.

As a native Floridian I can say that's an excellent list! One of the finest experiences ever is tubing down the Itchitucknee. Bumper stickers on the pickup in front of you (and on my truck) include: Go Gators!

I'm working with an E8 on a Toyota 2jZ (Not mine). I know I'm missing something, but can't seem to find where in Halwin to select which wideband input used, between the shielded O2 wire or an A/D channel. I have an Innovate LC-1 and am primarily interested in datalogging AFRs. This is the first modern Haltech I've done ( I have an F9A fuel -only on my beater 280) and am not impressed with its software's user - friendliness - But maybe that's just because it's new to me. Anyway, any help with the whole Wideband setup process, from what input used through Halwin selections, would be appreciated!

1 year, 5 months ahead of me. Congrats!

I don't know what the cost may be, but you could use the transducer from a Greddy electronic puel pressure guage. I have one of these gauges on my Lexus, and have been planning to datalog fuel pressure from it with my Electromotive TEC3. The transducer is connected with a 1/8" npt male thread, and obviously is made to operate with gasoline. Interesting idea.

That is very pretty work, StreetFighter - I was proud of my custom intake until I saw that beauty of yours. Thanks for making me feel inadequate! According to my sources, the turbo variant of the 2JZ has hyperutectic (still cast, but stronger) pistons with a bigger dish for a lower CR. The IS300 -GE has a CR in the high 9s and distribututor-less ignition.

MSD 8224. You can also use the stock GM DIS coils (that's what e-motive uses) from almost any mid-80s/early 90s GM car with a coil pack. Used coil packs are on ebay cheap all the time.

Looks good Gabe... That enlarged passage from the front 4 runners looks like you almost doubled its size. That's GOT to improve flow.

Hey Rick- I am also a master of lack of progress. Glad to hear that your project is still alive.

I dug up this thread to vent about the difficulty I'm having tuning low speed running on my 2jz-powered Lexus. I have a TEC3 and 720cc injectors - not TOO big...and a 90mm throttle body. No, I didn't choose/install it. At low rpm/loads, my bigass TB has such a small opening that the TPS was near the idle setting, intermittantly triggering the decel fuel cutoff with small thottle position changes. I have almost tuned around this problem, working with the decell enrichment settings, TPS/Map blend, along with a smaller idle opening and using timing to set/smooth the idle RPM - but even so that big TB makes tuning so critical that it's a MAJOR PITA. I will probably go to a 75 mm TB sometime in the near future (My intercooler tubes are 3", so any bigger TB is gaining me ZERO). From one who has been there -Resist the manly urge to go big.

I'm starting to suspect that it's a spoof. Funny sh!t, John.

. You go, Gabe! Must be nice to have a Z to drive to DNI... Looks like my junk won't make it.

I've used the FIDLE Relay for fan control - I beefed up the relay contact circuit traces on the relay board with 12-guage wire, and of course cut and jumpered the circuit board to apply the correct signal fron the ecu to the relay coil. It's a good idea to use an inline fuse for the fan. Makes for a nice clean install.

Yes Gabe, I AM the man! Now get the tuning done to be ready for DNI!

I'm just back from out-of-town - Here's what we've got: All sensors reading correctly in Megatune, 10 degrees advance, 180-220 rpm indicated while cranking. Seems to be rich, plugs wet, injectors pulsing (clicking). Spark present but looks weak, not the big fat purple MSD ones we're used to. The MS has a VB921 installed - I suggested to Gabe today that he remove the MSD, set a suitable dwell, and use the VB921 to fire the coil minus directly. Gabe, I think you can do this with no changes to the circuitry. Probably should look at injector pulsewidth while cranking, should be in the 2-4 Msec range. I think Gabe said it was around 3, but can't remember. I'm about out of ideas...

I know. Just yankin Mike's chain.

Awesome. OK Mike, are you looking for a V160 now?

I'm still down with that:biggrin:.

That looks so sweet, Derek - Can't wait to see those finished and installed!

I have recently had a polite PM exchange with Paulo whereby he has promised to issue a refund for the deposit I made way back when for parts never made/ shipped. As I told him, I think he means well but maybe gets too busy to take care of business details, and occasionally, quality.