Recent content by BillH2

Thanks, I guess I won't worry about it.

I remember looking at a service manual and seeing that this engine does not have roller cam followers. If that's correct, does this engine need a ZZDP oil additive? Thanks

I recently purchased an 01 GS430. One of the conditions of the sale was the replacement of the two front tires. I took the car into a local Brigstone dealer and had the tires replaced. I had it four-wheel aligned at the same time. It drove fine before and it drives fine on a perfectly smooth...

I always wondered about the difference in displacement with no increase in horsepower rating. The exhaust system pretty much explains it. Headers will be a great improvement, when and if they are ever available. An LS400 that goes 14.2's? I have to wonder about all of your victims, guys who are...

It wouldn't be raspy, like a V6? Seems like if you used a couple of good quality turbo mufflers and a properly designed crossover, you could keep it managable. I wouldn't mind a little noise. If I want a LOT of noise, I will just crank up the Shelby. (the sound insulation consists of a little...

Anyone, or did I post this to the wrong forum?

I have an 01 GS430. (3uzfe engine) In reading these posts, I assume that this car is one of the very few that can actually benifit from a K&N air filter. So often these things are purchased with the idea of gaining HP, when in fact there isn't a restriction in the intake tract. What would be...

Never mind, I figured it out. Thanks Bill

Rod Respectfully, what are dizzy caps? I assume leads are the plug wires. I most certainly would do the whole thing including the waterpump. Thanks Bill Horsepower: Some is good, more is better, too much is just enough!

Looking at a number of GS400's and 430's with 45 to 85K. I have been told that Lexus service calls for a timing belt replacement at 90K. Do these engines bend valves if the belt breaks? Anyone know if belt replacement HAS to be done by a Lexus dealer. (140 miles away from here) Looking for a...

So that means the rod length to stroke ratio is 1.96:1. Wow. Definately a candidate for high RPM. The ideal Rod Length to Stroke Ratio is 2:1. Piston speed and side loading is extremely low. The piston spends most of its time at TDC making camshaft timing all the more critical. I would be very...

One of the biggest limiting factors on RPM is piston weight. Lighter weight=more RPM. Does anyone know what the stroke and the connecting rod center to center length is?