first run on my new setup, awesome Options

[Woody]

Well after doing most of the mods I had planned for this winter I came in 4th in class and 9th overall out of 135 cars at our first autocross this year. In my class I finished behind Beth McClure-Strelneiks in her slightly insane Mazda in 3rd, then Frederico DelToro in his Boxster in second, and then Troy Acosta co-driving the Mazda. I am stoked considering the company I was in. I still have some understeer to dial out and it may be time for a rear bar.

https://www.youtube.com/watch?v=9t6MiW34I14...be_gdata_player

[Woody]

I did a baseline with me out of the car then balanced it with me completely in the car. Didn't get a pic of that though. It's not as perfect as I would like since the rear is not adjustable.

[Randal]

I did a baseline with me out of the car then balanced it with me completely in the car. Didn't get a pic of that though. It's not as perfect as I would like since the rear is not adjustable.

Once you get the adjustable collars on the back can alter the height to where you want it, then get in the car and play with the fine settings until the car is perfect.

And this is one modification that you'll feel right away. (IMG:style_emoticons/default/smile.gif)

[PeeGreen 914]

I did a baseline with me out of the car then balanced it with me completely in the car. Didn't get a pic of that though. It's not as perfect as I would like since the rear is not adjustable.

Once you get the adjustable collars on the back can alter the height to where you want it, then get in the car and play with the fine settings until the car is perfect.

And this is one modification that you'll feel right away. (IMG:style_emoticons/default/smile.gif)

(IMG:style_emoticons/default/agree.gif) Getting that ass down will also feel real nice

[Woody]

You can definitely feel it being higher than it should. It's my next step along with going back to non progressive springs.

[Randal]

You can definitely feel it being higher than it should. It's my next step along with going back to non progressive springs.

What weight springs are you going to put in? I was surprised how much I needed and my car isn't heavy.

Have to be careful here as Paul will remind us what a really light car is all about. (IMG:style_emoticons/default/biggrin.gif)

[J P Stein]

Heh.......
IIRC over the years I started out with my first purchase a 140s.......then I put on 21mm front T-bars....uh. 200, 225, 250, 300 (a bridge too far), 275s achieved the balance I was looking for and kept both rear wheels on the ground.(no rear sway).
A guy has got to be objective with your judgments of what is right and not settle for less.......BTW, I sold all them extra springs for .50 on the buck......oopsies all.

[Woody]

I'm running the 180 progressive from weltmeister. They also offer 200 pound and 250 pound springs but they are progressive. I would like to go back to constant rate but don't think I should go less than 200. I still have to shorten the front swaybar drop links so I can go full soft on the bar and have decent angles.

[Borderline]

I had some springs that looked to be progressive, but weren't. Some of the springs are wound with a couple coils at one end wound tighter than the others giving the appearance of "progressive" spring. But these coils would go solid when the car was placed on the ground and had no effect on the spring rate. It was just their way of making a spacer so you could use the stock style of spring mounts. See if you can slide a feeler gauge between the coils when the car is supporting it's own wt. If you can't slide a thin feeler gauge between the coils, there not working and have no effect. FWIW (IMG:style_emoticons/default/biggrin.gif)

[Randal]

I'm running the 180 progressive from weltmeister. They also offer 200 pound and 250 pound springs but they are progressive. I would like to go back to constant rate but don't think I should go less than 200. I still have to shorten the front swaybar drop links so I can go full soft on the bar and have decent angles.

I'm running 240# strings in back and my car is 1876 dry, with the driver.

[Chris Pincetich]

Once you get the adjustable collars on the back can alter the height to where you want it, then get in the car and play with the fine settings until the car is perfect.

(IMG:style_emoticons/default/agree.gif)
they are a great investment and look cool too! (IMG:style_emoticons/default/beerchug.gif)
Our PCA region adds "mod points" for the after-market adjustable rear spring collars so be careful if you are also building your 914 to fit within certain rules.

[J P Stein]

Our PCA region adds "mod points" for the after-market adjustable rear spring collars so be careful if you are also building your 914 to fit within certain rules.

Heh.
I had one experience with the "points system" of your local PCA. I don' tremember the exact number .......ain't like it's used anywhere else in the world.......but it was between 1200 & 1300 which = AX03.....that earned a "whatever, dude".
Woody has enough challenges in Super Street Mod of SCCA, but spring perches ain't one of em'.

[Woody]

Our local PCA has maybe 2 or 3 other cars that would be competitive. A Boxster S racecar, not a BSR, a 911 RS replica that is very well driven, and a Cayman R with an exeptional level of talent. Our local SCCA is where all the competition is.

[Woody]

Well I've been playing with some settings and the car did really well yesterday. 3rd in SSM, 12th overall out of 120. The car is finally predictable and I've found some tire pressures that work.




https://www.youtube.com/watch?v=yCENbhenA-I...be_gdata_player


(IMG:http://www.914world.com/bbs2/uploads_offsite/i288.photobucket.com-12530-1337611366.1.jpg)

[Randal]

Nice going Woody. Sounds like your getting the car dialed in pretty well.

[Woody]

I bought some take offs from one of our S2000 guys that I'm gonna try, 245/16 A6s. I need a little bit taller gearing and these should fit the bill as well as being wider. I just have to come up with some 16" rims.

[Woody]

One more question, do ya'll prefer to run staggered tires front to rear or the same sizes? My car balances at 45% front 55% rear.

[PeeGreen 914]

I liked running 225s all around with my orange car.

Ass still looks a tad too high. Whole car does really.

[Woody]

I liked running 225s all around with my orange car.

Ass still looks a tad too high. Whole car does really.

I'm as low as I can go in the front without raising the spindles. They are T struts. I was going to raise the spindles myself but it appears the strut tube tapers right at the spindle. Those are 15" rims so the tires are about 2 inches smaller in diameter than what's offered in 16" sizes which in my eye doesn't fill the wheel well. Maybe that's what you're seeing, maybe not. I'll measure ride height and post back.

[PeeGreen 914]

After looking at pics of my old car I see you are about where I was. Those are 225 50 r 15s

[Randal]

After looking at pics of my old car I see you are about where I was. Those are 225 50 r 15s

I've always run the canti's all around, but will be going to a staggered set up. And if you use the weight balance, i.e., X% front, Y% rear and extrapolate what size you should be running in the rear based upon any front size.

Like in my case if I want to find the perfect tire for 43.6% front/53.4% rear weight balance, then develop a ratio and apply that to tire sizes. (IMG:style_emoticons/default/dry.gif)