Progress sways?

wat? Lol

these ones:

Progress Technology: Anti-roll bars, sport springs, coil-overs, camber kits and more since 1995!

they're sold in the Nissan motorsports catalog as well.

Stiffer is supposedly better for these cars in the front, more bar the better. Based off of just a straight bar (doesn't include the 6 bends or mounting hole locations) the hotchkins is the strongest at 35x10mm while that progress is only 35x6mm. In terms of twist or motion of inertia the hotchkins is 140% stiffer (I believe. MoI is 5.45 vs 3.89. WL is 2.61 and OEM is 1.71). Now if the progress bar has a mounting hole closer to flat part of the original straight piece before it was bent then the progress could be stiffer. Only way to tell is measure each hole to find out which ones closer.

Now since the progress is sold individually I'd say that's a pretty good bar to buy! The hotchkins rear is useless! Since most keep OEM or hell, they remove it all together! I yelled at hotchkins last night and asked why the hell are you not splitting them? You're losing customers because no one wants the rear.

i might jack up the car today. what measurement are you referring to?

remove the rear bar? i drove with only the front before i did my rear sway and it felt weird, wasn't as sharp with the OEM.

If you laid the bar against a wall (the front longest flat part), then measured from the wall to the first mounting hole (the front side of the hole closest to the wall), that'd tell you who's is the strongest. Basically its like the WL has two holes. The first hole is stronger then the back hole. So Hotch vs progress, if the progress hole is like an inch closer, it might be strongest.

Some do. Lots leave the rear stock. What do you mean not as sharp? Stock sways felt better then stock rear with aftermarket front?

I'm perfectly happy running hotchkis front and rear bars. Rear is set at the middle hole. Very neutral until you get on the gas.

Wonder if you're different from running so much weight from the TT up front.

Who knows. If I had to guess, it's only ~40-50 lbs net weight increase, with maybe 1/3 of that ahead of the front axle. I couldn't tell you if that's enough to shift the balance of the car forward.

Well I know what several people run or want to run, Dorans rear would be a good idea of what to do. However since he's forced to run 245/275 that might be a moot point.

I'm also on softer springs (eibachs) than most, so there's a good chance it would be too much bar in back if i went to a coilover setup. For a daily driver, I'd rather run too much bar and not enough spring just to keep from beating myself to death.

Hi Rusty
Do the SPL endlinks work with other sway bar makes?
Whiteline only make front ones.

Cheers

Whiteline most certainly makes rear endlinks. They're garbage. I've got a broken set sitting on a shelf in my garage right now. SPL links will work with any sway bar that I can think of. They won't break, and they cost ~$30 more. It's a no-brainer.

It's very odd. I've ran pretty much the entire Whiteline catalog on other vehicles and been very happy. The endlinks are the first failure I've ever had of one of their parts.

Ahh see that's making sense. The track guys I'm talking about are very stiff. Stocks like 8.1kg and I'm going to 13kg coilover.

Whats the difference? Thickness? Subis run kart boy solid links. Why not 370's? I could make some steel ones :tup: