Drag suspension suggestions?

[US-1]

Hi Don. I'll say this once: I'm not a crook and did not rip you off. Period. Now that we have that out of the way...I don't plan on selling anything anywhere ever again. Joe knows I can add valuable input to the board. He and I talked a few minutes ago as well. Yes, he mentioned you in particular.

Here is the bottom line.....I have probably forgotten more about going fast than you will ever know. From dead stock street cars to five second injected nitromethane dragsters and everything in between. I DO know what I'm talking about.

As far as "acting an ass" goes....that is simply a point of view. You don't like me so your point of view is somewhat biased. Other people do know me and think quite the opposite. You and I can discuss that in person later this year.

For now....you don't need the anti-roll bar. Use the brackets, good subframe stiffening, and get the 8 pt roll bar. You can thank me later.

PS: Changed the sig just for you.

 

[don_w]

Hi Don. I'll say this once: I'm not a crook

Seems like the Houston police feel differently... right?

 

[US-1]

Hi Don. I'll say this once: I'm not a crook

Seems like the Houston police feel differently... right?

Funny thing about that, Don......haven't seen them or heard from them. More unsubstantiated horseshit from California.....and the internet.

Fuck off, Don. We'll settle up at Fontana. You can have your precious little message board.

 

[VSOP]

WOW.. Just WOW!!!!

Oh and I don't think he know anything about S197s.. Cause subframes are not all that important on the S197 like on the SN95's..

And I wonder how renting a v6 or hertz to race makes someone all knowledgable on these cars..?


Oh I crack myself up :roll:

 

[SoundGuyDave]

I'm going to throw a suspension question out here for discussion. But first, let me provide some background.

Right now, in the rear I'm running BMR LCAs, UCA, adj panhard bar, and Stange adjustable shocks. The right (passenger) shock is set full firm, and the left is 3 clicks softer. Front suspension is stock, although I do have the BMR K-member and sway bar delete. My car dead hooks the vast majority of the time, and has never had any wheel hop. But, it seems to squat quite a bit, plus it torques to the passenger side on the launch. Even though it hooks well, I feel like I'm wasting power which is not getting to the wheels because of the squat and body torque.

A 6-point roll bar is in my near future, so I'm thinking that it will stiffen things up some, but if you could add one more component to reduce/eliminate squat and body roll, what would it be and why?

Hey, Don!

I have to side with the majority, and suggest putting on a set of relocation brackets for the LCA's. That will cure your squatting issues, stock spring or not. As far as the body roll goes, to fix that, you'll need to increase the spring rate in the right rear, and the old-school airbag trick is really the best. Once you have the bag in the spring, add a handfull of pressure and do a test run. Keep buming up the pressure until the car stops trying to roll over, and you're done. Once you dial in the bag, take a pressure measurement for repeatability. You'll have to adjust the bag pressure for temp changes, but knowing that "X" psi will get you in the ballpark is a help. No comment on the rear roll-bar issue, but if you haven't, eliminate the front. For your needs, it's dead weight, and keeps your front end a little too tight on the launch.

 

[ChevyKiller]

but what is wrong with the new BMR anti roll bar as opposed to the original?

There's nothing 'wrong' with it - it just doesn't work as good IMO. The orignal has mounting brackets and 'can' bolt on, but as soon as you started putting any serious torque on the rear, it would come loose easily and wasn't very efficient. Even BMR themselves recommended you weld it in. That's what I did and that's when I noticed the difference on the street. To be really effective, it needed to be welded on and it was kind of a PIA.

To make it more user friendly, the new one is completely bolt-on and designed to be bolted on at the track and taken off for street use. I think the original one is better because you just don't get the advantages of it at all without welding it in IMO. The new one bolted on is still nowhere near as solid as the orginal welded on IMO.

I agree it's not a mod that most require, but I know where's Don is and where don is going and I think it would be a good mod to have.

The truth is you don't need the mod until you know you need it...lol

I didn't get it to help me with sqaut at all. I got it to keep straight leaving on the brake. When my 60's got sub 1.5 - I tended to jerk right and the BMR peice fixed it instantly.

 

[don_w]

My car leaves straight the vast majority of the time. Like I said in the first post, my primary concern is wasted energy due to excessive squat and/or body roll. I don't plan on adding anything until after the roll bar goes in. That alone will stiffen things up... we'll just have to see how much. But, I appreciate the debate on everyone's thoughts on what options are there and what worked (or didn't work) for them.

 

[169stang]

I wouldn't suggest the anti-roll bar either..... if you are running 13's. lol. It makes a hugh difference in how the car leaves. it has to be setup properly too. You don't just install it and that's it.
Don, I'd suggest you do just what you're doing. Once you get the cage in, see how it leaves. If it's twisting enough when you leave, you'll know what you can do to correct it. From the vid's I've seen of yours, you need one. That can change when you tie in the chassis with the cage. It's not only leaving straight, but the car wasting energy twisting up.

 

[thump_rrr]

I agree on waiting till the cage is in before deciding but I doubt that the LCA relocation brackets is the way to go.
The torque you are seeing is the oppoing force of the driveshaft which is why the right rear is squatting.
My car with the thick Steeda anti rollbar leaves straight as an arrow. The Steeda won't work for you since you are using 15" wheels.
Either the airbag solution or the extreme antirollbar should do.
The other solution may be the Spohn anti rollbar that George is using.
Unfortunately George has been MIA for a while.

 

[don_w]

Thanks David & Peter!

 

[94tbird]

yea i havent seen george around anywhere. i wonder what hes up to