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My 1JZ IACV will not open before a cold start. I've tried two IACV's with the same result. I can open the IACV on the bench by jumping the pins. When I put it back in the car, the ECU lets it idle down as it should while it warms up. Until the next cold start when the valve is still closed. The...

Suddenly my 1JZ cuts fuel when given over half throttle. Dies and wideband reads full lean. Once it drops under 1700 rpms, it returns to normal. Drives normally as long as you don't give it more than half throttle. My ECU went bad and I had it repaired by Driftmotion. The IACV still doesn't work...

Hoping I can get some help with this. I bought a brand new R154 from a friend that had been sitting for 4-5 years. Ordered new from Toyota. I swapped it in my car that had a broken R154. I drove it for a few hundred miles taking it easy. Used Redline MT90 in it. Shifted great. I decided to go...

I was at a drift event and shifted from 1-2 on the rev limiter without letting off the gas and heard tremendous pops and grinds. At first it stayed in 1st when trying to shift from 1-2, but after I tried to use the other gears it engaged 3rd and now only 3rd works. 1st and 2nd act like neutral...

Having a hard time getting a decent fan setup for my 1jz. I had 2 12" electric fans, until one died yesterday while at a drift event. I noticed some power loss, the stock temp gauge hadn't moved, so I went back to the pits and my laser thermometer read 217* on the waterneck... I had a...

Putting a single on my 1JZ and was wondering if most would recommend reusing the stock MLS exhaust manifold gaskets with the single manifold or using the metal/fiber gaskets that come with the manifold?

My stock LSD was barely working like most of them out there. Tested the breakaway torque at about 20 ft lbs. A friend and I both ordered the Weir stage 2 kits for our cars. Installation is very straightforward. Everything fit perfectly. First you separate the carrier and exchange the stock...

Started up my 1JZ today and it wouldn't idle. Runs perfectly otherwise but dies when I let off the gas. Took off the ISCV and it's fully closed. The connector has power to the center pins with the ignition on. Safe to say the valve is stuck closed? Anyway to fix it or do I have to find another?

Tried to start my jzx90 1JZ swap in my mx83 Cressida today with no luck. I've hard wired everything as it's going to be a track only car with a switch panel. I hooked up 12V to +B, +B1, BATT, and IGSW, and the two large black/yellow and black/red wires and small black/yellow wire on the body...

This is a build log for my 90 Cressida. The story starts with my Supra. It had a rebuilt 7M, lex/550's, 57 trim, the usual mods. The car ran great but it wasn't long until I had a broken ringland on the NPR pistons. NPR pistons are junk. Never use them. I was burned out on working on the...

This is for my 1990 Cressida, but I was hoping you guys on SM could help me out. I have a 1jz from a jzx90 that I'm trying to wire into my Cressida. The only pinouts I can find online are for the ecu only which doesn't really help me out with the body plugs on the jz harness and the car. I'm...

Went to my first drift event, took my Supra and my Gopro. Most fun I've had behind the wheel. https://www.youtube.com/watch?v=fFkAX1-v4Dk

I was driving today and my 7m developed an intermittent missfire under boost. Within a couple minutes it suddenly developed a dead cylinder. I stopped to investigate and #1 has zero spark from the coilpack. Number 6 still has spark, so does that mean that the coil pack has to be bad and it's not...

I wasn't sure if my stock gauge was right, so I installed a mechanical gauge and compared the results. Engine is thoroughly hot in all the pics. The oil pump has a 5mm shim in the relief, oil filter is directly on the block while I save for a full flow remote filter mount and cooler. Stock idle...

I got sick of my car stumbling and going rich whenever I let off the gas, so I refitted the stock BPV. I now have a small amount of compressor surge whenever I let off. If anyone has pics of a recirculating setup that can flow enough air to eliminate surge at higher boost levels than stock I'd...

I'm working on replacing the heater core and I discovered an aftermarket alarm under the dash. The wiring is a horrible mess of electrical tape and splicing that is preventing me from taking the dash out. I would really like to just cut all this out, but I'm wondering if it's going to cause me...

I know it's different in every engine, but I'm wondering how close I'm getting to the limits of 92 octane pump fuel in my 7M. I'm using a 57 trim ct26 at 16-17 psi with supporting mods. A/F ratio stays in the mid 10's at full throttle. I don't plan on pushing it any higher but I want to know if...

I know everyone hates these threads but I'm never going to make it to a dyno. Just want some guesses on rwhp and torque. Mods: Fresh 7M Lex/560cc running rich 10.5:1 at full throttle CT26 57 trim @ 14 psi Full 3" mandrel bent turbo back, no cats Cartech FMIC, 2.5" hardpipes AEM dryflow...

I bought some 560cc Evo injectors, Does anyone know what kind of clips they use and where I can get them? Thanks.

My 7M makes about 10 psi at hot idle and about 35 on the highway. This is using 5w-30 synthetic. Oil pump has been shimmed 5mm. Basically between the low pressure and all the rod knocked 7M's I see, I worry about it. Is this pressure normal?