EP, anyone? Options

[groot]

So, there are some big changes coming in E-production (SCCA) to "equalize" the competition. In 2005, the 914-4 2.0L runs at 1870 pounds with driver.

Is anyone thinking of switching from FP to EP and using a 2.0L now that the 914 has lost 50 pounds?

As you may have guessed, I'm considering it. Since I have 2-2.0L engines and no 1.8s, I'll be starting in EP anyway. But, I'm on the 4-year plan to get competitive (IMG:style_emoticons/default/smilie_flagge24.gif) , so it really doesn't matter immediately.

I know they used to be competitive in EP.

Anyway, there have been some posts about the horsepower a FP 1.8 can make. Any thoughts on a 2.0L?

[Brett W]

Jake, I agree some engine will like a longer or shorter rod ratio. Depending on port size, volumn, runner length, valve size, carb size, etc. Look at what Honda has done on some of their street cars, 1.55-1.60 rod ratios. I am giong with 1.75 based on some info that friend of my got from Kevin Duckworth, of Cosworth fame. When ask what rod ratio he though was best he said 1.75. If you look at some of the worlds best engines they have designed them to work at 1.75 rod ratios. It is the best comprimise in piston speed, acceleration, cylinder wall loading, ring life, etc. One of my heros Smokey used to advocate going as long as possible, which in the case of the stock 1.8-2.0 engines serves well. at 1.954-1.845. That works well with the stock peanut port size. I think you can make a 2270 with a stock 2.0 rod perform better if you have bigger valves and ports to help speed up velocity and to take advantage of the high piston speeds. You are going to make some serious in roads into bad ass street T4s as soon as modern tech is brought into the T4 world. How about some water cooled 4 valve heads, just for shits and giggles.

Brad you are right on. THe 2.0 litre has not had a competetive advantage for a couple of years so the research has not been done and it will be a very expensive learning curve. Finch told me one time if you want to race and not build engines every weekend runa 6 if you want to race and out handle everyone else run a 4. I am going to build a regional GT3 2.0 four just beause I have the stuff laying around and need to get practice before I build a GT2 Boxster, but I will probably build it using a 1.8 crank and 96mm cylinders, so it really doesn't count as a two litre.