Suspension / ChassisQuestions about your suspension? Need chassis advice?
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I was believe the f41 suspension was optional on earlier years, but became standard. I would like to know what it is, and how does it compare to z28 suspension.
The following according the the Camaro White Book for 1985 factory options (a cursory look didn't show F41 after 85): "RPO F41 (sport suspension) included larger front stabilizer, rear stabilizer, and special front and rear shocks; not available with Z28."
JamesC
__________________ "There are more things in heaven and earth, Horatio, / Than are dreamt of in your philosophy." Hamlet
"Convictions are more dangerous enemies of truth than lies." Nietzsche
It's between the base models and the Z28s. My car came with it. Little stiffer front springs, 34/21mm sway bars. At least that's what it was on my 91. And I have no fancy badges. That was a pretty ignorant statement.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
Well, that only makes sense. I haven't had a chance to compare my suspension to a camaro that doesn't have the f41. I definitly tell the difference between my iroc,and my rs. The iroc hands down has stiffer suspension, and can corner better. I'm gonna take some calipers and measure the sway bars on both machines.
Yea, the IROCs have stiffer front springs. Not sure which sway bars the IROC would have, maybe 34/24. I can't really remember lol. I don't recall if they came with 36s like the WS6s or not.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
Some of the early cars had a little "F41" on the bumper. I *believe* that the Z28/IROC springs were the stiffest you could get stock on a third gen, with the WS6 springs being a little softer. I think perhaps the best thing to do is try to get some info on stock spring rates, either from GM or from from your local MOOG or similar suspension dealer. My guess is if you have a big 36mm hollow front sway bar and 24mm rear bar, but no "wonderbar" (steering brace), it probably ends up being equivalent to the "performance suspension" option on the Firebirds.
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IROCS did come with the 36/24 combo, and also had a little tiny rod between the cowl and pass. hood hinge as well as a small bar on the pass wheel well tying the wheel well to the boxed portion of the subframe. Check it out, on the later models, there is a little extension with a hole in it on the pass side hinge base. Its for that little bar.
Last edited by 89junkyardgta; 07-17-2009 at 08:17 PM.
Yeah, I replaced my entire front end. WS6 sway bar, KONI adjustable struts, Eibach ProKit springs. Totally different beast. The best place to spend money is in the struts though. They control the rest of the suspension's characteristics.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
No, WS6 is a option package for 3rd an 4th gens. Maybe 1st and second gens as well. It's a 36mm hollow/24mm solid.
The fronts are around $500-$550
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
WS6 is a Trans Am/ Firebird only option, as far as I know.
Quote:
Originally Posted by JamesC
The hollow bar has a hole on the underside near the end links.
JamesC
No need for hole drilling lol.
If the IROCs bar is hollow, your IROC and F41 car will probably have the same front bar, but the IROC should have a larger rear bar and stiffer front springs. Also, the valving in the struts and shocks will be different most likely. The KONIs are about 500ish for the front and 300ish rear.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
Last edited by 91_5.7_TPI; 07-18-2009 at 10:59 AM.
I wouldn't really drill a hole lol! I think I could improve my suspension w/new struts. I have air shocks in the back. I bought it that way. I keep a minimum amount of pressure in them. Don't wanna have a jacked up look, not on a thirdgen.
Yeah, the struts would really help, but you would see a greater improvement by matching the front and rears. You'd have alot better dampening on the fronts and then the air shocks on the rear. Probably cause unbalanced handling characteristics.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
I seem to get more nose corner tipping with the rs that I do w/the iroc. I always attributed this to the front. I'm not sure why the previous owner put on airshocks.
Like I've said, the front springs with the RS will be softer, as would the stock valving on the struts. That's why the front seems to tip more than the IROC. If you replaced the struts, it would help either car. The KONIs I mentioned have stiffer valving than either the RS or the IROC would have had factory. If you replace only the fronts, you'll have a car with stiffer valving on the front than the rear. This would unbalance the car's characteristics, except now the rear would have more tip/roll than the front. This would be true on either car, IROC or RS.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
So shocks, and struts should be replaced as a set. I still cannot figure out why the previous owner installed air shocks on the back. Any significant air pressure jacks the car.
Yeah. When you do one thing to the suspension, you need to consider the impact it will have on the whole suspension. I'm not saying there won't be an improvement, but you would have a better performing car if you replaced them all.
Some people like that look, with the rear jacked up. And some people think that the car will perform better as a drag car with the rear stuck up like that.
__________________ KONIs I Eibach Pro-Kit I 36mm/24mm sway bars I Spohn: Adjustable PHB I Wonder Bar I SFCs Custom LCAs I LCARBs I J&M Products Camber/Caster plates I Hawk's Ceramic Pads I 4th Gen 3.23 Posi I LS1/LT1 Brakes
I don't think the owner wanted to use it for drag. The gears are 2.73, and it is in such darn good condition. It could be to compensate for weak springs, or he thought it would stiffen the rear. Who knows?