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racehard24
06-06-2010, 07:54 PM
We are currently using the afco 3 stage pull bar and have tried it about 4 times and have taken it out. It seems to give good hook but it seems like it unloads so hard. We ran the 1200 pound spring. I have seen that Larry Shaw has a 700-2000 linear progressive spring. Has anyone tried this and would this be better than the biscuit bar? Also it is made by him or is it a hypercoil? Just looking for more forward bite.

Darkstar15
06-07-2010, 07:32 AM
Have tried both biscuit and the AFCO 3 way and others. On the 3 way we had a 1050 or Shaw progressive. Liked both springs, use the progressive now.
Need to set the yellow biscuits to give you 1.5 to 2 inches of travel depending on track conditions.

John

Renegade Cust Susp
06-07-2010, 07:51 AM
Have been running the Shaw progressive spring and it works great, the way I understand it, it is made by hypercoil but the only place you can buy one is threw Shaw, I think it has way more feel and initial forward than the bisquit bars. JMO

sneaky56
06-07-2010, 08:16 AM
how do you set the bushings to give you that much travel i had mine backed all the way off and still only got 1-1/4 travel...........just took both yellow bis out and to right at 2 inches of travel with the 6-1200 spring????? just curious if im missing something here

racehard24
06-07-2010, 08:47 AM
does it come in the correct length for the 3 stage? I think it need to be 6 5/8 inches according to afco.

racehard24
06-07-2010, 09:52 AM
how much gap do you run in between the bushings on the 3 stage?

kraftkar7x
06-07-2010, 05:35 PM
I was told 1/2 inch of play til the bushings engage... And adjust wider if tires break loose and if track slicks off ur supposed to open it up too

goodolboy01
06-07-2010, 07:44 PM
Good adjustment and maintenance guidelines here under tech... 4590 torque link
http://www.rightfootperformance.net

racehard24
06-07-2010, 08:00 PM
how do I know if I have the 4590 or the 4700. They have different starting points. I think I have the 4700 and was thinking of starting with 11/16" gap.

goodolboy01
06-07-2010, 11:44 PM
They all look basically the same to me, maybe different in lenghts... i like mine with right at 3/8 to 1" gap. I'm running less hp and shorter tracks than you though... where you losing traction? off corners or on straights?

racehard24
06-08-2010, 07:08 AM
3/8 to 1". That seems like a fairly big difference considering they say 1/8 can make a difference. Also the 4590 and 4700 the 4700 seems to have the brake biscuit on the opposite side.

Darkstar15
06-08-2010, 02:21 PM
Sneaky56 something does not seem right that you had to take out the biscuits to get that much travel. Look on the Right Foot Performance site or AFCO for their setup instructions. Maybe too long a spring or too much preload on the spring. We have been able to get up to 2.5in of travel, but usually stay around 2in or less without taking out the buiscuits.

John

imcamodfan84
06-08-2010, 08:13 PM
thanks for this thread! We are running a 1250 spring, and cant get anywhere near 2 inches of travel. Around 1 1/4 at most. But we also set the bar up according to afco's directions, and I think the gap between the biscuits and the adjuster is too small, around 3/8 like afco says. Might try moving it up to about 3/4 and see how that effects the car.

legend15x3
02-01-2011, 09:26 AM
Just wondering, we had been running one of the 3 way pullbars for the last year and had good bite. But wonder how much pinion angle do we need? we constantly look at pics and the rear of quick change to see that we are rubbing the bolt off. We routinely run almost 1 1/2 to 2 inches of rotation or pull. Just what can we do to reduce wearing off the nut on the back of rearend, and still get our forward bite?

charcoal01
02-07-2011, 10:34 AM
ran the 3 stage for the first time this weekend with the 1050. not in a mod, 3000 lb 3 link that runs a lot like a mod, on hossier dirt bozz. had a two way with a 675-1500 progressive in it before, looking for more forward off the corners so decided to try the "new greatest". track was a tad slimy but had decent traction but the rear tires just werent getting into the track, you could feel them buzzing the surface. had 1 1/4 travel in hot laps, backed the adjuster all the way off the bushings, only got 1 3/8 travel. yanked it out and put the 2 way with the prog back in for the mains, track had started to slick off a bit but the diff was huge. had 1 7/8, but still felt like i was lacking forward and i'd like to get the 3 way to work as i've heard if you can get initial bite, the bushings really drive hard. anyone had any luck with the eibach progressive in the 3 way or should i soften spring down to 700 or 800?

stock car driver
06-08-2015, 08:24 PM
Any new info or other ideas to add to this old thread?

Curious about this bar, I have one, three nights on it so far.

jamminjayman5
06-09-2015, 08:14 AM
I'm running one with a 800lb eibach spring and yellow biscuits. Really nice to have the option to tune from tacky to dry.

stock car driver
06-09-2015, 09:46 AM
yeah that's what got me to put it on, one more adjustment to think about and decide on.

jamminjayman5
06-09-2015, 12:01 PM
I've had extremely good luck with it, I always start with 1/2" before bushings come in and back off 2 to 3 rounds if it slicks off.

stock car driver
06-09-2015, 05:00 PM
I've had extremely good luck with it, I always start with 1/2" before bushings come in and back off 2 to 3 rounds if it slicks off.

what spring are you running

Im on a 500-1500 progressive with purple bushings

jamminjayman5
06-09-2015, 07:37 PM
Straight 800 lb eibach with yellow bushings, and letting the bushing be the progrestive side of the bar. It feels lazy when it's super tacky been going to try less distance to make the bushings come in faster. But it makes its money in the dry in my opinon

stock car driver
06-09-2015, 08:04 PM
Gotcha, thanks.

Are you running a top shock?

Ive only ran mods for a year and half and always ran bushing bars. The least I can get mine to is half inch for tacky, I was thinking of pre load my spring some more to bring that down but the most travel Ive ever gotten is 1.25 which is just into the bushings when they are backed all the way away from the spring.

jamminjayman5
06-09-2015, 08:36 PM
No sir, I run a tight 1/4 mile track and the top shock makes my car too tight on entry. I've been getting around 1.5 of travel I'm also a usra open motor car. I've been running anywhere from .5 to .75 preload. .75 is too much for the super slick dust blows the tires off at half track.

DirtRacer9x
06-09-2015, 11:49 PM
So what are all your front shocks and RR? Pull bar doesn't fix those areas.

jamminjayman5
06-10-2015, 05:06 AM
What areas would you be referring to we were just talking about the tunability of a pullbar and how different things affected it

stock car driver
06-10-2015, 10:34 AM
What areas would you be referring to we were just talking about the tunability of a pullbar and how different things affected it

9x is a fan of mine im sure hes talking some (not a nice word)(not a nice word)(not a nice word)(not a nice word) about me, the track I been running on sundays has the races on you tube so any idiot can watch them and become a expert.

stock car driver
06-10-2015, 11:51 AM
No sir, I run a tight 1/4 mile track and the top shock makes my car too tight on entry. I've been getting around 1.5 of travel I'm also a usra open motor car. I've been running anywhere from .5 to .75 preload. .75 is too much for the super slick dust blows the tires off at half track.

I'm running a 1030 top shock. Tried a true 1090 but way to tight like u said.

MM90
06-10-2015, 11:54 AM
I went from the BSB bushing bar to a two way type spring bar with non adjustable bushings. I'm very dissapointed in myself for wasting two years on that bushing bar. Started out with a 1200# and two small red bushings that came with the bar. Bought the Afco 600-2000 spring and removed the bushings. Kinda hard to measure travel on this bar but by looking at it I'm close to 2" or so. Best forward bite in the slick I have felt in two years. I do feel that laziness though when the track is tacky and fast. Or when the track slicks off in spots and your in and out of the throttle.

DirtRacer9x
06-11-2015, 10:29 AM
Stock car you're so closed minded. Obviously you want as much travel as you can get because the bar is simply an energy absorber. Unless you're down on HP and it's absorbing to much so you simply add preload. Stop over thinking such a simple part. It absorbed energy that simple. More travel "with a smooth progrssion" means grip is easier to maintain.

Renegade Cust Susp
06-11-2015, 07:06 PM
^ that is incorrect

DirtRacer9x
06-11-2015, 09:40 PM
^ that is incorrectDon't see you explaining it...

Renegade Cust Susp
06-11-2015, 10:37 PM
Did I start by calling anyone closed minded though?

It's a torque absorber yes, so essentially it absorbs to to prevent from shocking the tires loose under acceleration. However travel does not = traction/power to the ground. There are limits in both ways.

your spring/bushing can be so stiff the under acceleration you do not get enough travel (not absorbing enough torque) that it causes the back tires to jolt loose. On the reverse side you can be soft enough that you absorb too much not maximizin available traction so you waste the torque on wrapping the rear end instead of transferring it through the tires to move the car forward.

In most cases you will find 1.5" - 2" is pretty ideal. Depending on surface and driving style your choice of spring/bushing will vary.

DirtRacer9x
06-11-2015, 10:39 PM
Obviously you don't want a progressive rate say 200-5000 because it will still shock the tires. But it is an energy absorbing unit that helps from shocking the tires. The rate will spend on driver, motor, tire and suspension set up you're running. Either way I want as much as I can get dry and if it's hammer down the least amount so it isn't as lazy.

DirtRacer9x
06-11-2015, 10:43 PM
We've also rated out almost every style urethane and durometer out. Whether its for the bumps or torque links. We know every characteristic in urethane and what progressive springs we like to run. We've got a lot of testing under our belts asphalt to dirt. Sorry I didn't care to go as in depth as I should've to clarify.