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Author Topic:   Biscuit Bar Travel
UFnARacing
Dirt Maniac

Total posts: 179
posted February 10, 2005 02:05 PM  
Considering going to a biscuit type pull bar. This is not on a modified, but the travel should be about the same. What's the max travel you get on an AFCO, Shaw, etc...type bar? Just looking for bar length change due to travel, like 21" travels to 23". Don't really want to spend the cash for the X-Factor type. Trying to calculate pinion angle change and see if I can get it to work.

Thanks.

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http://www.ufnaracing.com

UFnARacing
Dirt Maniac

Total posts: 179
posted February 11, 2005 10:14 PM  
This makes me think that no one actually checks how much pinion angle change occurs from full brakes to full throttle. That doesn't sound like the people here.......

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http://www.ufnaracing.com

sdracer12
Dirt Maniac

Total posts: 180
posted February 12, 2005 11:40 PM  
I use a Afco springbar w/1050# spring, I get about 3 1/2 to 4" travel.

I also use a Shaw biscuit bar w/ 1050# purple biscuits. It travels about 3".

This was with a 20" long pullbar, with bar mounted 5" above top of rear end housing, 18 degrees down angle. At 3 1/2" travel, the pinion angle changed from 9 degrees at static, to 2 degrees after travel.

This the info you're looking for? lol


[This message has been edited by sdracer12 (edited February 13, 2005).]

chapa73
Dirt Maniac

Total posts: 169
posted February 16, 2005 10:33 AM  
Its a little late,But I got a monte bar last year and I was getting about 1/2 length of the biscuit. When I go out to my shop tonite I will check but guessing I will say about 3".

This was on a 3/8 slick track,3 link mod.

I havnt tried a spring bar,but I went from an old cheapy biscuit bar to this monte bar and it was nite and day difference on my car.
I love it,cant wait till this year.

UFnARacing
Dirt Maniac

Total posts: 179
posted February 16, 2005 11:58 AM  
Thank you gentleman, that's exactly what I was looking for.

Forgot to ask...........where can I find info on the monte bar?

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http://www.ufnaracing.com

[This message has been edited by UFnARacing (edited February 16, 2005).]

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted February 16, 2005 12:07 PM  
With a Quickcar pullbar and 2 red biscuits we were getting around 1.5". Pretty much the same with AFCO spring bar. Mounted about 18degrees down and Id say the top mount is prob 9-10" or so above the center housing. I used to think we needed 2-3" but anymore i think 1-1.5 is better.

Having a lot of pullar travel isnt necessarily good though. The more travel you have the more power is getting lost in the spring instead of going to the ground. You need a little cushion in the spring/biscuit to cushion the tires as the track surface changes, but if you go too soft you are delaying instant traction. A solid bar is a good example of this. On the throttle it gives you instant traction, loading the tires immedieately instead of having a spring to delay it some. But if you hit a dry spot or go from tacky to dry in the corner and the tires break loose it will take longer for the tires to catch back up and you have just ruined that corner.

just my opinion though.....

[This message has been edited by dirtbuster (edited February 16, 2005).]

nvracer
Dirt Maniac

Total posts: 127
posted February 16, 2005 08:42 PM  
I used the monte bar didn't like much also used the quickcar. Used 3 red biscuts early in the year and changed to 3 yellows had much better bite off.
If you need info on the monte bar, call dirtworks, don't have the phone #.

xhubby
Dirt Freak

Total posts: 376
posted February 24, 2005 09:43 AM  
Ok, I've been reading this post, & now I've got a question. What's the general opinion of the Quickcar biscuit bar? Here's the reason I ask. In our B-mod class, our rules read, "only solid pullbar or biscuit pullbar (red biscuits only) are allowed". We've always run the Speedway Motors biscuit bar,(part #910-45509, page 90 in catalog#230), because that was the only pullbar that was allowed for the last 2 years. This year, the rules do not mention any specific bar, only the "red biscuit". The Speedway Bar is a piece of **** as far as I'm concerned. We have a 02 DW-8 short bar 2 link that just will not hook up out of the corners with this pullbar, & was looking for something better that still fits the same catagorie.
BTW, Our car is extremely fast with a spring pullbar, just can't run one of those. Thanks for any input on this.

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted February 24, 2005 09:53 AM  
We ran the quickcar setup a little a couple years ago. It seemed to work pretty well. Driver thought it was better than our DW 'monty' bar, that was with a 2 link. We have gone back to a spring bar after going to 4 link because they (DW) told us the biscuit bars wont hold up to a 4 link, but I dont know we just went with the spring.

For the right price I'd be willing to sell the one we have if you are interested... I beleive it even has the red biscuits in it already. We only used it maybe 8 nights total, and only 3 or 4 on the red biscuits.

xhubby
Dirt Freak

Total posts: 376
posted February 24, 2005 10:29 AM  
What's the right price? Is it the short one,(3 biscuits), or the long one,(4 internal biscuits)? How often do you have change the biscuits on these? This biscuit bar we've been using just kills our DW. We probably only get about 1/4"-1/2" of movement under throttle with it.
How about the X-factor biscuit bar. Has anybody tried this piece? Like it, not like it?

ukandesperate
Dirt Full Roller

Total posts: 45
posted February 24, 2005 11:48 AM  
sorry to jump in but if the qickcar pullbar isnt what your looking for i would be interested in buying it from you dirtbuster,obviously give xhubby first refusal. where can i buy the quickcar bar from new,im in the UK so strugglin to find one over here.

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted February 24, 2005 11:54 AM  
It is the short one. I also added a travel indicator to it, so that we could record the travel with different setups.

I spent over 200$ when these were just out on the market. Between the pullbar and extra biscuits. Now you can buy them for 125$ and 15$ for extra biscuits. I'd sell the assembly with the red biscuits for $65+ shipping. IF you want the other biscuits, (blacks, yellow, etc) i'd take 5$ ea.

Let me know.

xhubby
Dirt Freak

Total posts: 376
posted February 24, 2005 01:33 PM  
dirtbuster, I'll talk it over with my son tonight, & get back to you. How much travel did you get with it? That's my main concern. We need something that will work as close to a spring bar as we can get.
Thanks.

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted February 24, 2005 01:43 PM  
The way i remember we were getting close to 1 1/2" with it. Thats why I put the travel indicator on it was to see how it compared to a spring bar. Like I said we only ran it like 8 nights at the end of one season so we didnt really try a lot of stuff with it but it seemed to work just as well as the spring bar, and I think it would be more consistent than the DW monty bar.

xhubby
Dirt Freak

Total posts: 376
posted February 26, 2005 04:45 AM  
Sorry dirtbuster,I guess I won't need your quick car bar. Thanks for the offer though.I was told by our track tech. that I could run ANY biscuit bar, as long as it only has one(1) red biscuit to dampen under throttle, & one for braking. It doesn't matter how long the biscuit is, just that he can remove it as one piece. Any ideas?

trasrat89
Dirt Full Roller

Total posts: 46
posted March 22, 2005 01:37 PM  
Has anybody tried puchasing an x-factor pullbar from GRP lately, & if so, have you had any trouble getting one from them? Just curious.

A&M Motorsports
Dirt Maniac

Total posts: 117
posted March 22, 2005 01:56 PM  
Trasrat, Alliance Motorsports has the x-factor pull bars or all the parts to make your own. I bought everything but the outer tubing last week from them for around 150 bucks. I hope it works. It's hard to get any feed back from racers on it.

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Artie Perilloux
A & M Motorsports

racingforjesus67
Dirt Roller

Total posts: 8
posted March 22, 2005 02:27 PM  
Ran X-factor form Gilbert all last year
and put one on new car this year. Works great for me, had my share of crashes and only had to replace the bar that runs down the center (i think less than $20)I run the red (soft) but going to try the progressive that they just came out with. 4 A features and 2nd in points.

trasrat89
Dirt Full Roller

Total posts: 46
posted March 22, 2005 02:51 PM  
A friend of mine ordered one 3 weeks ago from GRP, & still hasn't got it yet. Just curious if anyone else has had any trouble with them. They don't seem to want to return any phone calls either.

A2KY2K88
Dirt Maniac

Total posts: 141
posted March 22, 2005 07:40 PM  
Same thing happened to me year or so ago. Took a couple months to get the product, never returned calls. Poor business in my opinion. Wouldn't do business with him again. JMO

xhubby
Dirt Freak

Total posts: 376
posted March 22, 2005 08:43 PM  
That's nice to know. I've got one on order too. Should've been here by now.

A&M Motorsports
Dirt Maniac

Total posts: 117
posted March 23, 2005 04:47 AM  
Guys, order your x-factor bar from Alliance Motorsprts (972)245-2547 and you'll have it in a couple days.

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Artie Perilloux
A & M Motorsports

trasrat89
Dirt Full Roller

Total posts: 46
posted March 23, 2005 10:15 AM  
I see he has a couple on ebay for sale. It shouldn't take a month to get something delivered. Heck, he's got the money for it. My friend has already ran once since he ordered it. Hate to run again without it. This is no way to run a racing business.

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