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It's the internet at it's finest! All the stories about the guys/gals going to meet their hot internet dates who find that the face just doesn't match the picture. Then the technical stuff that's just mostly a waste of time. Most of the do-ers that I know don't spend much time on the net...

There are some mild port modifications that will help on the bottom end(better response), and everywhere really. These require you to remove the intake manifold, and will likely also to either increase the fuel pressure slightly, or tune the ECU. Let me know if you're interested.

The SC handles quite well with minimal suspension upgrades; I have the actual parts from someones Supra TT (springs,shocks, rear bar), along with a performance alignment, and some fat tires/wheels. This makes for a fun daily driver that won't scrape over speed bumps, curbs. It was the easiest...

Yeah, what he just said, there's also nitriding, a surface hardening technique.

I used to have a relative who lived a few miles from a track, the low pitched "BRRRRRRRR" for five seconds at a time was entertaining.

I usually shape the guides to provide a fairing for the valve guide, this reduces the area that will oppose the airflow, reducing turbulence. Or just take away the guide right down to the port floor on a dohc engine.

Too bad about all the mis-communication. A boundary layer is like the oil layer between your bearings inside the motor;the main rush of air rides on this layer instead of sticking to the walls, but this is only when fuel is present. On our engines the injectors are pretty close to the valves...

That's the first time I've received a positive response from my divider sharpening, seems most would rather do nothing, yet still wonder how power is produced. My personal thoughts on the boundary layer manipulation would be to get the swirls as close to the port walls as possible such as to...

That's nice. If you use the "batwing" style LED emitters, you get a more even dispersion; they are used for back-lighting signage panels. Try doing a search for Luxeon, they have a pdf link on their website that explains the way the LEDs work, and how to make simple, stable circuits using...

Nice parts there. I was shocked when the Toyota dealer quoted me nearly $50 for an exhaust gasket for my Corolla, found a discount online, was $35 if I remember, but it is re-useable, well made.

I have been looking at doing that, figured that the stock runners are 38mm at the port, and start out at 41.5mm. From my experience with individual intake tracts, the runners are right at the correct length, but could be opened up to maybe 50mm on the plenum side, tapering down, for the first...

My car was from Texas, had the A/C replaced @ 60K, figured I had better replace the belts as well, since they were hard and shiny @ 80K.

Well what engine code? You may want to try disconnecting the battery for a while to re-set the ECU, and try again.

With the current F1 engines there is an up/down vibration produced, where some of the dampening can be accomplished by the car's suspension, pretty cool. The next generation V8 cars will have to deal with a side to side vibration that is harder to fix.

The fuzz isn't even compressed on the cogs, can't be very old...

The piggyback I've been using for some three years or so isn't in any way over-ridden by the self adjusting capability of the stock ecu, in fact it's more like a carbed/mechanical advance timing setup now with the mixture/timing signals clamped by the piggy back the way that they are. The stock...

Rarson, sounds like a great compromise in getting a 10% increase w/out breaking the bank. Also, the compression be increased by the increase in stroke/swept area, not sure by how much, but hopefully an amount that wouldn't stress the stock pistons. So how much is a good gasket set for a1uzfe...

It has to do with the vectors provided by the angles/phasing of the cylinders firing; what is created is a naturally balanced motor. The other intriguing part of the V12 is that you can have less internal stresses with a large displacement by spreading out the load, and minimizing the weight of...

You can look around on the BMW M5 boards for info on dyno numbers/mods for a tuned engine of that displacement, just have to suffer through the odd culture though, BMWs are not my cup of tea. If our stock cranks are forged, and you limit the revs to 7,500, get a good harmonic balancer, I...

I have some pictures of a Porsche GT3 head/ports, but I'm afraid they wouldn't scan well. I got them from a co-worker. The pictures show the machine tool marks and are very revealing as to the shapes, appears the improvements were subtle, just opening things up a bit, and blending it all down...