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I'm also on the east coast and all of the fuel out here is 10% ethanol. I can't imagine that there would be a dangerous difference in afr's because of 10% ethanol especially at the compression ratios that those engines run. If it's on a go-kart or something that will see a lot of throttle then...

It is a third gen, it's easier to get the better mileage at 60 because at 80 just about any hill or acceleration makes me go in to boost. If you're going to build/tune a megasquirt you should be able to get pretty great mileage at steady state cruise. Our engines aren't known for fuel...

In my Rx-7 I get the best highway mileage at 60 & 80mph. This is at approximately 3000rpm and 10inHg of vacuum in 4th and 5th gears respectively. My instant injector duty stands right around 20% at both speeds. Because of it's low torque at low engine speeds i have 4.10 gears OEM. For us...

Better picture: http://i17.photobucket.com/albums/b88/ArmenMAxx/DSC_0008.jpg The reason i can't do a simple barrel mani is space/ accessories, and the turbine housings are more or less integrated in to the manifold. I appologize for the poor rendering of my ideas but you get the...

I've been considering having a custom barrel style mani fabbed out of inconnel. Picture two l shaped tubes that fit together against each other, with a flange on the end for some smaller GT20ish turbines with two downpipes into a collector. I'll try to put together a simple gif to show what i...

Let me start out by saying that this is my first post, so please, be gentle. I have searched the forum on my main points, I found the threads to be informative but I want more depth of knowledge. The car is a mildly modified 1993 Mazda Rx-7 (engine code: 13b-rew), I have an Apex'i Power FC...