Vintage Race prep, Prep to circa 70 specs Options

[914werke]

Folks I could use you help.
I have been lobbying to our local Vintage sanctioning bodies in the Pacific NW (SOVREN and VRCBC) to allow 914's to run in thier events, and have evan recently completed SOVRENS race school only to discover that this club is more about collecting historically documented and/or acurate reproduction race cars, than acutally racing them. (IMG:style_emoticons/default/mad.gif)
Apparently this is a debate that has been fought long befor I came on the scene, one of arguments being that if you let 914s run then you have to let 240Z cars run and there goes the neighborhood! (pass the grey poupon please!!)
Anyway, N. of the border (BC CAN) they seem a lot less uptight and said yes they wouldnt ask to many questions (or look to closely) If my car was prepared to circa 1970 trim (that being the cut off for Vintage status) sort of "dont tell, we wont ask" approach.
So what was accurate for 70?
From an as raced standpoint, the only documented heritage I can find is the 914/6GT & LeMans?
The only four that was available was a 1.7 Tailshifter, correct?
My tub is a 74 so to make it appear as close to a 70 model as possible I know need to change bumbers, the interior is gutted so that not an concern. What about wheels?
The color is white, was that offered in 70?

You get the Idea

[airkewl]

On the tire question, we do indeed have a real problem of supply in the 60 series, and right now our rules say you have to run 60 series tires. The problem child size seems to be in the 185/195/205 60 15's which is a popular Porsche size for 911s and 356s, but it is also the tire size used by some Alfas, Triumphs, Volvos and others. But other groups with diffferent sizes are also running into supply problems.

Our group has always required DOT tires, with the original intent that they would be readily available and keep the costs down. But the answer may be to allow special race rubber in the right sizes, provided they are readily available. There are street tires available, and one of our members tried some H rated tires and they worked, although they were slow. If everyone runs them, then the speed difference is negated. But some of us have a real concern at running on H rated tires when we have a speed potential of 130 MPH.

Frankly we don't have any answer yet. SOVREN is also part of the broader VARA group, and all clubs share this problem.

The obvious answer is to allow 50 series tires which can be readily found, but that tends to go against the purists who want to maintain the period asthetics. There is actually nothing in the SCCA GCRS which mandated 60 series tires. It is just the practical reality is that is what you could get then, and most want to maintain that look. But the practicality of a reasonable supply may force us to 50 series.