EP 914-6 How low can I go? Options

[neilca]

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I am setting up an EP 914-6 for SCCA regionals. I have 22mm front torsion bars and 350# springs in the rear. How low can I set the ride height? I have found the bolts that hold in the front sub frame to be the lowest point of the car and I can adjust the bars till it hits the ground. The rear I use the jack points on the back corners of the tub. I can lower these down to 2" off the ground.

I have a set of the 23mm front bars also and can get heavier rear springs if needed. Any suggestions? I am runing cantilevered slicks from Goodyear.

I will be running tracks like Road Atlanta, Barber, Roebling and CMP. How low can I go?

Thanks,
neilca.

[neilca]

Chris,

You are correct, my car is way beyond EP prep. I used EP in the title because it could be recognized. I will be running a special regional class in the SE called Special Production Under 2.4 liters (SPU). Basically, the only rules are it has to be under 2.4 liter and not fit another class.

I have not heard of raising the pivot point of the trailing arms. I would guess that would have been a good thing to do when the car was on the rotesserie. Could you elaborate on what you have done? I have followed, with great interest, your work with horizontal fans. I originally set up my chassis for a 4 cylinder. I found a deal on a 6. That is why my engine mount plates have spacers in them. If I could run a horizontal fan I could loose the spacers and move the weight forward.

Terry,

Thanks for the kind words. I think I enjoy building cars more than driving them. When I retire that is my plan is to tinker on race cars.

The burn marks are from tires I used last year that where 3 inches too tall. At least they were free! They gave me something to ride on while I sorted out the car. This year we use free slicks from some friends in the National circuit.

I hadn't heard of lengthening the arms to get more negative camber, but that is a great idea. If you run radials that would really pay off.

Our local SCCA region is planning on having more Time Trials this year associated with Nationals and Regionals. I will take advantage of this to get some track time, tire temps and travel data.

Based on what I have read so far I should set my ride height in the front such that my lower control arm is parallel to the ground and the rear I am thinking should be about 3.5 inches off the ground.