Ok guys,
I discovered today that my 4A-GZE has a rev-limiter set at 8,300 RPM. Seriously. I don't understand it any more than you do.
I first noticed that something was different when I got on the freeway this morning. I accidentally shifted late into 3rd at what I thought was a 8,000 RPM shift. Then, once up to speed on the freeway, I engaged the clutch and revved the engine straight to 8,000 RPM and I couldn't believe it!
If you tap the throttle in neutral, it will rev to 8,500 RPM.
If you hold the pedal down in neutral, it's hard to see where it bounces, but it's somewhere around 8,500 RPM.
So just now, on my lunch break, I got on the freeway and took 2nd gear all the way full throttle, and it hits the rev limiter at 8,300 RPM. It hits pretty hard, so it is not the valves floating. It is definitely an electronic limiter.
I don't understand this engine. It makes very little power below about 3,500 RPM and then it comes alive like a rocket right at 4k and pulls extremely hard all the way to 8,300 RPM. Even at the top end, it does NOT feel like it's running out of lungs; it pulls hard all the way to 8,300 RPM. I had Chee riding along with me and he couldn't believe it either.
So Bill, what do you think, have you heard of some GZE computer mod for this? The computer looks completely stock but I've not opened it up yet.
Also, it is possible that my tachometer is off. It does idle at a perfect 800 RPM. I didn't check my MPH speed at 8,300 RPM in 2nd gear, but I will the next time I try it. If I am doing like 60+ in 2nd gear, then I know for sure I am revving well over 7,500 RPM.
BigMike