Heritage Classic Street ,on a local note.

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David Barrish
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Joined: Thu May 15, 2008 11:26 am
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Car#: 58
Location: Lake Arrowhead

Heritage Classic Street ,on a local note.

Post by David Barrish » Thu May 02, 2019 4:58 pm

Having proved that a locally prepared NA Miata is lots of fun, but the ship has sailed and I will leave the E Street class to those in the newer cars. So, for the time being I have the 1982 BMW 320 up and running. The car is smog legal, with current tags. The question will come up, why not FSP? The answer, is tires. Then you need wide rims. That mean having to work the fenders. And have the coil over struts with the hard as hades springs.

Not going to happen. That and I have a stash of RE-71R's that will work under the stock fenders. On 15x7 rims. With a 1.8 ltr. four cylinder. In a car that new put out 99 hp and weighed 2450 lbs.

Again, the car is ready to once again try not to scrape the door handles around the tight corners. Will see.

David Barrish
Posts: 488
Joined: Thu May 15, 2008 11:26 am
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Car#: 58
Location: Lake Arrowhead

Re: Heritage Classic Street ,on a local note.

Post by David Barrish » Tue May 07, 2019 10:13 pm

That was a fun weekend and a relearning curve. The first half of Saturday went well, the afternoon started off with hard starting and the car lost it's edge. Sunday morning it would not hold an idle.

I have to thank Robert Baltazar for finding the issue and providing the fix to get me into the event. And it held for the drive home. Almost running out of gas on Sunday, that was humbling. Thank you to Tom Berry for the gas. I am reminded that what the gage is telling me, is an approximation of the contents of the saddle tanks. Yes there are two, little ones, with a connection at the low point and a pump only on the passenger side. A transfer pump between tanks, showed up on later models.

Having some time to check on the things I repaired to get the car to the event uncovered a nick, that looks like bite, in a fan blade. The stress cracks make it obvious it is getting replaced along with a hose on the intake system. But it was fun and the car does like the wider tires. The door handles, survived until the next event.

David Barrish
Posts: 488
Joined: Thu May 15, 2008 11:26 am
Club: PSCC
Car#: 58
Location: Lake Arrowhead

Re: Heritage Classic Street ,on a local note.

Post by David Barrish » Tue Aug 06, 2019 6:04 am

Suspension and Steering Allowances
• Alternate springs are allowed, but must be of the same type as OE and attach at original locations.

It's not that I might spend "lots" of time thinking that this means that coil overs with adjustable spring perches are not legal in "Heritage Classic Street", HCS but I just wanted to confirm they are in fact not "legal". They would be legal for FSP

But it is the SCCA.

I am having a good time refreshing the 320, it has potential. Getting back up to speed is confirming that when you are staring over, you are beginning at square one.

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Robert Puertas
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Re: Heritage Classic Street ,on a local note.

Post by Robert Puertas » Tue Aug 06, 2019 7:37 am

The fronts are “coilovers” from the factory. The rears are not, if memory serves. So you get to use half the good kit! Maybe even 3/4. You just need to do math, and buy the right spring rate rear springs to go with the setup you buy. :-). Somebody out there in Bimmerland knows the answer to that question though...

David Barrish
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Re: Heritage Classic Street ,on a local note.

Post by David Barrish » Tue Aug 06, 2019 7:45 am

Robert,

The rears on the E21 are the "coil over", the fronts are a MacPherason strut. They returned to a separate rear spring after this car.

David

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Mike Simanyi
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Re: Heritage Classic Street ,on a local note.

Post by Mike Simanyi » Tue Aug 06, 2019 10:05 am

David,

Even in Street Prepared, you're not allowed to move the spring location. If the car wasn't a coilover configuration from the factory, you have to go up to Street Modified before that's a legal conversion.

I am not familiar with the pre-E30 configuration. Are the rear springs around the damper or are they divorced, like the E30 and Z3 / M roadster / M coupe?

Edit: I just looked it up on RealOEM and yes, the rear is a coilover configuration from the factory, so compliance with that in light of SCCA standards at the national level means you could use an alternate damper, retain the spring location so ride height is maintained, and change the spring rate.

Or do our HC rules permit lowering? I can't find the HC rules linked anywhere on our main site, so I can't look that up.

Mike

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