this past weekend I installed one of these (GTech Pro RR performance meter) and I pulled OVER 1G laterally +\- 0.01G!!! (in a turn, I stopped paying attention to the meter at 1.03Gs for obvious safety reasons.) That rivals the ultimate in performance, with the Porche Carrera GT.

I am pretty dang proud of my suby! I am sure I can get those numbers a little higher too, considering I am still on stock struts, lateral links and trailing arms.

Current suspension setup is as follows:

Stock struts w/Tein S-Tech springs
Whiteline F/R sways
Whiteline RSB Mounts w/Perrin endlinks
STi Aluminum Lower control arms
STi Carbon Fiber Front Strut tower brace
Whiteline ALK
Polyurethane rear crossmember bushings
ADR DV-8 18 x 7.5 rims
Hanook Venta K104 225/40ZR18 rubber

:banana:

-Ted

 

Remember, the G-Tech measures peak lateral Gs. Skidpad tests in magazines and such are steady-state averages. The GT3 can probably pull 1.3-1.4 peak lateral Gs. The WRC rally cars in tarmac trim can pull over 1.5 Gs!

 

Actually, that's not entirely true.....it has a data logging function that will graph out your entire run from start to finish, and will give you a graph cursor that will tell you your G-forces at any given point during your run. Granted it will not automatically average the entire run for you, but if you know your math, its not that hard to figure out. Oh yea, and those numbers for the GT are peak numbers, not a steady average, taken at a race track, thats why they said they will have to get it on a skidpad to take measurements to compare with other cars, because its steady ave. should be slightly lower. I suppose I should have linked to the mag. article, so you could read the whole story, however, the VBOX GPS Speed sensor that The Mag. used is not much more than a glorified GTech....the same technology is used to measure G forces, it just has alot more functions and costs 5 grand, as far as accuracy goes they are very nearly the same.

once I get a few more suspension bits though, I am sure I will be able to pull 1.1 peak G's. Oh yea, and the GTech RR comes with PC software that you can use to compare multiple runs, and this (I believe, but I havent messed with it yet) will give you an average of all recorded runs being compared.

In anycase, I am very proud of my suby, it grips the road amazingly and I know if I had some race compound tires it could hold even better. Also, 1+ Gs is better than most cars on the road can handle safely, which is exactly the goal I was shooting for with my suspension mods....so, now that I have achieved my primary goal of reaching 1+ Gs laterally, my next goal (as you had mentioned) is to achieve 1+ Gs as a Steady Average.

-Ted

 

I have an 03 WRX Sedan....as far as how much my suspension setup cost....well....errr....I am not really sure since I didnt buy everything all at once....I just bought stuff as I could afford to. Maybe >/= $4k all together...including rims/tires, but that may even be a bit high.

-Ted

 

Dude, it's called banking. In a banked turn most any car can pull at least a G. That's why I don't really care how many G's a magizine says a car pulls. Those numbers are meaningless.

Bill

 

Skidpads aren't banked, and that's where almost all lateral G numbers come from.

 

But they are all on different tires. A good set of tires can add quite a bit to that skid pad number. And I brought up the banking to show that lateral g's on the street have little to do with what a car pulls on the skid pad.

If I remember correctly a stock Caddy CTSV has a built in G meter. I think it was road and track that tested it one time and it pulled 1.15 g's on the street without being pushed to hard.

If you really wanted an equal test, then put the same tires on all the cars before they are tested.

Bill

 

That goes back to my peak vs. steady-state discussion. Peak readings can spike quite high in any decent car, but keeping it there is another matter. And you are right about tires. Like all testing, they are the single most important variable on the car.

 

why do you guys gotta go rain on my parade? Hey, So I dont have easy access to a skid pad or a large open flat parkinglot that I can use.....in anycase, when I CAN I will get some flat land numbers and post them. And Yea, the turn was banked, but so was the turn on the track that the GT numbers were that I quoted from, so I think that is a somewhat close comparison. Also, I posted this thread just because I was proud of my car, and wanted to share that with everyone, ya know, people that could appreciate it......I wasnt asking for anyone to critique, criticize, or flame on me saying basically, "well, your car isn't THAT special, what about this, or what about that, blah, blah, blah"........well, guess what, TO ME IT IS, and I am g*ddamn proud of it.....I dont care if anyone elses car, or JoeBobs 1970 VW Microbus w/4 spare tires can do that, or better.....doesnt matter.....that was just one of the goals I set for my car.

-Ted

 

Ted, you know I know what your car can do. I've seen it in my rearview mirror.

 

ROTF.....PUNK!!!!! Your Going DOWN!!!!!!!! LOLOL

-Ted

 

If you look through car mag. articles that use sensors to measure lateral G's, cars that can pull 1.12g at peak (e.g. audi TT, R&T 6/02), pull a .86g on a skidpad...

soo, you're prob. at .85-.84g as seen on a skidpad.