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days of rocking the street clutch are numbered. Like you, I am going to start running e85 in the Spring on my stock turbo car. I was hoping to get my car back on the strip in the Spring on e85 to see what kind of gains I can pick up... hoping for several tenths drop over my last good 93 octane run. I have made a few trips to the strip with the street clutch and it drives like there's plenty of material left, but who knows how much damage has already been done from my prior runs. I have probably 15 to 20k miles on that clutch. With the hp/torque gain I'm expecting from the new tune on e85 in the Spring, I wonder if my clutch would fail like yours did. I won't have as much power as you're making (yet) since I don't have full breather mods on my car, but I'll be looking at around 420 - 450 rwhp on a stock turbo/stock engine Z. That's the sense I get after talking with different people running e85, talking with Seb at SZ, and reading. I'm making 371 whp from a dyno tune by SZ on 93 octane gasoline. I'm considering installing those Gates Barricade fuel lines from CZP when I install the ethanol content sensor. Mainly because I've read that fumes can actually permeate regular rubber fuel lines and I would like to keep the stink down as much as I can. It doesn't seem like the rubber itself will actually break down as a result of the ethanol (as many have speculated). From the reading I've done, all the components can already withstand the 85% ethanol content. The black goo than people talk about is not formed by the breakdown of rubber components, rather it's a gasoline additive (Poly Iso Butylene) that will increase the formation of regular carbon deposits. Basically, from what I've read, the additive works well in gasoline blends because there is enough additive contained in the fuel so it can do it's job; which is to soften and remove deposits. However, in low concentration, the additive does the opposite - it actually accelerates deposit formation. The simple fix is to run a tank of gasoline every now and then so the additive can do its job.
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