I agree. The 32/21 (or my old 32.5/21.5 if you believe the .5) are just not enough. Going from stock to those just didn't get me where I wanted to be.


The 35mm adds just the right amount of roll stiffness the car needs. I lean more toward a neutral car so the 21 gets me closer than a 19. But, I haven't tried a 24 or 25 yet so can't say what that would feel like.

Speaking of the 32.5/21.5. These were purchased from LG Motorsports. I haven't measured the diameters of these bars but I'd doubt they are anything but 32/21's. So if anyone is considering new LG Motorsports bars and you'd like to save money, find some old 1LE bars. But better yet, but some Suspension Techniques 35/25's. You might not need the big rear bar but if you do a lot of autocrossing, tuning the car for different courses can be easier if you have a small selection of rear bars. The 25 would probably work great for tight courses.

 

"The 25 would probably work great for tight courses."

Why? Sliding the rear around corners may look cool, but it's slow. You need to be able to get a lot of power down early coming out of the slow corners in first gear, and the 25 will hurt you there.

Do you know of any really successful autocrossers that use the 25?

 

Only for tight courses. Depending on your setup, the 19mm might give too much understeer. Each course is different. Just because you're more neutral doesn't mean your going to be sliding. You're right, it does mean you might not be able to get as much power to the ground but on a really tight course, getting the rear to rotate might be be an advantage. Most courses we run on here or even at the divisional or national level would NOT require a bar that large. For me, the 21mm is fine for the rear and maybe the 19mm for wide open courses. I've run on some courses where I wish I had a 25mm! For now, I'l stick to my 21.5mm.

 

No I don't. Just making a point about bar sizes. Like I said in my previous post. There have been times where I wished I had a 25!! But it's rare. Not only that, a 25mm WOULD be too much for the street.

 

Sanger for street I think the 32/21 will give you improvment.But like these guys are talkin I think you can see that you dont really need to do the rear I take it.But couldnt hurt.
I'm not sure where Morgan Hill is? If near Sacramento I know of a guy selling the LG motorsports G2 bars 32.5/21.5 for $150 you pick up.Let me know and I'll forward his info for you if interested...heck anyone else too thats interested.I've bought parts from him before...good guy I'm sure they are in good shape complete w/ Energy suspension end links bushins,and shaft bushins.

I myself am getting Suspension Technoligies 35mm solid front and retaining the 19mm,but I also have a 21mm if I need,and a 14mm.Been trying to figure when a 14mm would be a good choice for rear bar... hint hint bruecksteve,Bob 1FS

 

A 14mm is too small. You'd end up with too much understeer.

 

So if to much oversteer on a peticular coarse was happening with 19mm it'd be worth a try? The 14mm is the stock rear bar off my v6.
On the Z28 I really intend on keeping the 19mm rear in,and trying the 21mm rear I have also for some differences at the tracks I go to soon.

 

Don't confuse REAL oversteer with a heavy foot! Seriously, I doubt you have too much oversteer with a 14mm. Did you run that track in the V6 or the V8?

 

Well I guess I go ahead with the solid ST 35mm front bar and leave the rear alone.

Morgan Hill is near south San Jose.

 

that was a hypothetical question w/ 19mm on the Z. I gather I'll never need this 14mm bar should just throw away I guess.
I plan on primarily using the 35mm w/ 19mm & 21mm rears for the best feel I find.
But on the v6 the 32/21 and Konis w/ Eibach pros works good,very happy.But also may rip the 19mm off the Z and try it on the v6 if ever gets back to the track,wife kinda thinks its hers now cant get her outa it.And my focus is kinda directed towards the Z28 now.And its coming along slow too slow especially since Uncle Sam and the State just raped me this year and took almost all my mods savings

 

The 32/21 1LE's work just fine on roadcourses. But it's probably too much rear/too little front for autocrossing.