yoshimitsuspeed wrote:How considerably away from equilibrium were they? The equilibrium just isn't about to have just about anything to accomplish Together with the ITB equilibrium even though. Equilibrium would make some cyls run richer and some leaner even so the O2 would still average them out.

BigAl wrote:What the hell is actually a BTDC? Precisely what is the right timing placing for a std 20v in GP And the way the do I Verify this?

I didn't locate the part I was trying to find inside the BT handbook. Perhaps Because I did not look prolonged sufficient and it isn't really searchable.

If it may possibly't then you would be finest off fitting a stock narrowband sensor and reading the AFR together with your Denso through the wideband sensor currently fitted.

"also (the AFM isnt a restriction like individuals Feel and I do think toyota considered another thing) whenever they made the ITB's in lieu of obtaining Youngsters operate open ITB's."

Make certain the dashpot underneath the ITBs is hooked to the correct vacuum resource normally it will likely not suck the piston in and will hold the idle higher. Ensure It can be altered appropriate so when vacuum actuates it the pin sucks in significantly ample to the throttles to rest about the hard quit. As OST claimed ensure that the many throttle plates are adjusted correctly.

Due to this the Blacktop pulleys visually provides the looks of not being any dampening attribute whatsoever if they undoubtedly do.

To determine the appropriate details to show the VVT solenoid on and off two dyno runs are necessary; one With all the solenoid locked on and vice-versa. The with each electric power charts overlapped in addition to each other the highest peaks are decided on of each of The 2 curves.

The engine must make extra power on 16deg BTDC at high revs, exactly where the pistons are moving so fast you have to Pretty much foresee the TDC. Take into account that the flame front moves at continual speed in spite of engine revs.

I examined almost everything While using the BT manual Chapter eight - FI, but won't be able to find nearly anything Improper. The vibration is worse that has a/c turned on. At times the car just seems to runs wonderful and afterwards following a couple miles it's vibrating again and managing seriously definitely poorly, missing a lot of electric power.

We remained real to the website initial Toyota structure, but applied modern day Examination and production strategies to address problems like uneven h2o jacket cooling flows and port wall thicknesses.

My 4age 20V is working way also prosperous and gives black smoke from your exhaust. What i also seen is actually a vibration at three/four throttle to WOT with about each individual RPM. Would not seem flywheel relevant imo, although i had that problem on other autos and it sounded unique.

– Belt push pulley width: To permit for that 2mm broader belt the Blacktop cam belt travel pulley over the crank is one.7mm broader with a complete width of twenty five.2mm in comparison with the 23.5mm pulley as utilised on both of those the 16V and 20V Silvertop engines.

You might be correct. If many of the arms are resting around the stops and you simply press down, there'll be no movement, and there'll be no change in revs. But It is far from simple to see