Well, since my girlfriend did me a huge favor by destroying the engine in the 914(dropped a valve and it shot out the top of the case) I have decided to put the Powerstroke Turbo project on the back burner and slap something in the 914 for driving school in February...
The tranny was already hurting as well, so I'm gonna ship it out to Rancho for a few mods and some new bearings, the perfect time for it.
I have decided on a "D" version 2270 but I'm gonna try it with stock cooling first. I have only attempted this once before, and the temps were borderline, this time I'm gonna try a set of Shads birals to see if they will allow an almost 10:1 CR with the stock shroud. If they do don't (looks like they will) I have a brand new FAT shroud to install on it just incase.
I plan on keeping the same basic configuration as a normal "D" engine, but I'm using the Keith Black pistons basically to test their strength in a track/street car with almost 10:1 in a set of birals. I also plan to use another new cam that I dreamed up that has a bit less lift and a couple of degrees more duration than would be the norm, it is still split duration by 12 total degrees..
For heads I'm doing up another set of 2.0 914 heads, and keeping the same valve margins as a normal "D" version...
I'm rippin the old engine and gearbox out tonite and stripping it down, I hope to be done with it in a month so I can get some drive time on it, but with my workoad thats probably wishful thinking, I can only work on my own junk after 2am.
I'll keep you updated, looking for a solid 170 Ponies making power from 3-7500...that should not be a problem, we'll see how it cools.
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Jake Raby
Raby's Aircooled Technology
www.aircooledtechnology.com