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Author Topic:   harris copy no lift
redrcr88
Dirt Roller

Total posts: 15
posted November 19, 2005 09:37 PM  
have 96 harris car owned by mike corning who won western regenal championship in 95 96 the car is 2bar left z link on right with pull bar it has 650 left fr 750rf 200lr 175rr 1000 pullbar spr rr top arm up all the way bottom bar in bottom hole rr back link dow about 3 deg rrbot trailing arm in sec hole up pull bar about 18 deg dwn the car has no lift and when i let off it wipps even when i dont use brakes i woul like to see more lift also pb is 3and1/2 ft long mt to the right plz help

CUSTOMPERFORMANCE
Dirt Forum Champ
Total posts: 1176
posted November 19, 2005 11:24 PM  
Move pull bar to the left and soften the spring some. A 500-100lb progressive spring works well also. need more info about shocks scale #s etc

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 12:42 AM  
it has 52 left 51 cross and 53 rear and a 80lb heaver on the lr the puul bar is mounted on rear end left side 4 incn towards left on front mount the shocks are 94 on rear and 75 on front
quote:
Originally posted by CUSTOMPERFORMANCE:
Move pull bar to the left and soften the spring some. A 500-100lb progressive spring works well also. need more info about shocks scale #s etc


gould
Dirt Forum Champ
Total posts: 740
posted November 20, 2005 07:01 AM  
I would say you also need to get your rear percentage up. On my 96 Harris, I have mine at 59.5 percent. My cross is also higher at 52.5. Like custom said soften up your pullbar spring. The progressive spring is a driver preference thing. I've heard good and bad about them. I think mine is a 800 and I get 2" of travel out of it.

------------------
www.geocities.com/gouldracing11

gould
Dirt Forum Champ
Total posts: 740
posted November 20, 2005 07:04 AM  
forgot to mention, the pullbar needs to be straight in the chassis. Also get this book:
http://www.ssapubl.com/index.cfm?do=detail&productid=91

It's a great book.

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 07:47 AM  
gould how much wieght you got hanging on rear of car?r u at harris ride hieghts ? iam already getting around two inches of trave on pull bar i understand iam low on rear weight what can i do to get this car up i dont care about doing a wheelie just want some lift some side bite and foward bite and the car to quit snappin when i lift off the gas

HarrisMod#30
Dirt Freak

Total posts: 368
posted November 20, 2005 07:54 AM  
why not make it a 4 bar on the left instead of 2 link? And your goona find with those older chassis you have to strap a lot of weight on the back, and im guessing your proll at 2500 pounds already for total weight? Also can you run a shorter panhard bar? what is the length of your lr bottom link? On the lr are u using the holes on the chassis or do you have the bolt on bracket Harris sells?

HarrisMod#30
Dirt Freak

Total posts: 368
posted November 20, 2005 07:56 AM  
quote:
Originally posted by CUSTOMPERFORMANCE:
Move pull bar to the left and soften the spring some. A 500-100lb progressive spring works well also. need more info about shocks scale #s etc

im assuming u ment 500-1000?

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 08:49 AM  
no bolt on brackets 18 inch lower arms pan hard bar is long 21 inches top bar is equal lenth thanks harris mod 30

HarrisMod#30
Dirt Freak

Total posts: 368
posted November 20, 2005 08:56 AM  
225 lr spring, 200 rr spring 700 lf spring and with a 2 link on the lr id go with a 550 on the rf shocks 74s on front, 93s on rear and try a progressive spring on pull bar., but like gould said get that rear to 58-59, left side 52.5 and diagonal to 50.5 your numbers are close, just need to get that rear up. any way of making a plug for the lr and shortening that bottom bar up a few inches? do you have a panhard bar lenght rule?

[This message has been edited by HarrisMod#30 (edited November 20, 2005).]

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 09:54 AM  
yes is panhard bar rule imca iam going to make a plug what do you think arond a 14-14 inch bar was thinkinking of three linking left side also and bringing rear wieght up imca has 21 inch limmit on panhard bar what about the whip when i lift thanks again redrcr88

gould
Dirt Forum Champ
Total posts: 740
posted November 20, 2005 10:24 AM  
On mine, I made a plug on the lr that gets the bar to 15", my rr is mounted to the factory harris setting. I also run a j-bar. My car is a 2 link.

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 12:01 PM  
what kind of ride heights do you think i should run thanks again

HarrisMod#30
Dirt Freak

Total posts: 368
posted November 20, 2005 12:21 PM  
quote:
Originally posted by redrcr88:
yes is panhard bar rule imca iam going to make a plug what do you think arond a 14-14 inch bar was thinkinking of three linking left side also and bringing rear wieght up imca has 21 inch limmit on panhard bar what about the whip when i lift thanks again redrcr88

ok im confused now, what exactly do you have on the lr? i thought u had a 2 link? or are you saying u have 2 bars on the left side?(that would make it a four bar) Id try to get your bottom bar on the lr to 15.5 inches and keep your right rear bar the same( if i remember right the rr bottom bar should be 20 3/4 inches help me out Gould, my notes are in the shop) also the IMCA limit is 19 inches on the panhard bar. get your weight added to the rear and reset your ride heights ride hieghts should be.....
lf 3 1/8
rf 3 5/8
lr 2 3/4 at axle tube
rr 2 3/4 at axle tube

doghouse racing4
Dirt Forum Racer

Total posts: 95
posted November 20, 2005 12:32 PM  
The second bar on the left side may be a brake floater bar. That is what he may be refering to.....

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 01:44 PM  
it does have brake floater on left side i did try 2 four bar but i was going to two bar onleft did mean to confuse anyone thanks for all the help i still wonder why when i let off the *** end starts to come aroun instantly i mean if i let completly off it will spin if i dont get on the gas right away mind you iam not touching my brakes foot isnt even on pedal

donslink1
Dirt Freak

Total posts: 327
posted November 20, 2005 03:28 PM  
I would have to say because of your front springs, Im with harrismod30 run a lighter spring on your rf... just swaping the front springs will make a big difference..

gould
Dirt Forum Champ
Total posts: 740
posted November 20, 2005 06:04 PM  
could the tail out letting off the gas be too much stagger also? i think the bars should be 20.5 on the lr and 20 on the rr.

andykmod
Dirt Freak

Total posts: 369
posted November 20, 2005 06:08 PM  
Have you checked the whole car for Binds or bent parts??? Also where is you rr & lr spring mounted? How does the car come off the corner? As for your panhard bar in your first post you say it's 3 1/2 ft long and mounts to the right. Is the chassis mount on the lr or rr? Sounds to me like you have a bind somewhere! What are you getting for shock travel around the car?

redrcr88
Dirt Roller

Total posts: 15
posted November 20, 2005 07:24 PM  
the springs where both in front right now ls is on rear sided and ls in front comes off ok but seems too flat top mount on third link is 9 in above r end 1 inch to left from center and in the front it leads 4inc to the rt of car checked for binds cant fin any has new front end ball joints shocks springs spindles heims i did change this car from the harris front steering back to stock chevelle with the bump steer adaptors to be legal if i put a softer spring in rf wont it snap worse?

HarrisMod#30
Dirt Freak

Total posts: 368
posted November 20, 2005 07:49 PM  
yeah i thought he said it was 3 and a half feet long also??? Id also throw the brake floater in the garbage, you dont need it, yep gould is right, i just looked at my old harris 2 link\3 link sheets and the rr is 20, as far as the lr id shorten it up to try and get it on the bars by using a plug or getting the bolt on mount from harris(brakets give u 5 holes to choose from but i think its right around $125 or so) and as donslink said, swap the spring if you dont have the necessary springs or if you dont wanna buy new ones. Are you racing somwhere yet? If so let us know what you did and how it worked out for you.

[This message has been edited by HarrisMod#30 (edited November 20, 2005).]

[This message has been edited by HarrisMod#30 (edited November 20, 2005).]

donslink1
Dirt Freak

Total posts: 327
posted November 20, 2005 08:34 PM  
Not saying your wrong but if you have a bind or a bad spring or something, it wouldnt work anywhere I would think, you go in the corner and the suspension binds, when you hit the gas it is still bound.
He says when he hits the gas it tightens up, it would spin if he didnt get back to the gas, which if you have a stiff rf spring it will be loose coming in and tight under power.
and I dont know Harris set-ups but talking to people that sounds like it is a stiff rf spring for a harris...

redrcr88
Dirt Roller

Total posts: 15
posted November 21, 2005 06:06 AM  
thanks every one iam going to fix this thing you guys are very wise its different to what iam used to ill let you know what happens racing our famouse turkey classic this week end in el centro ca 3000 to win if any wants to come go to ivexpo.com to check our sched.thanks again names keith smith thanks again

CUSTOMPERFORMANCE
Dirt Forum Champ
Total posts: 1176
posted November 21, 2005 06:56 AM  
Yes I meant 500-1000lb spring on pull bar. Short 19" bar mounted in front under the pinion works well also for panhard bar. One thing to remember with a pull bar you have to keep them loaded, if you let off the gas too long too quick the car will spin entering the corner you have to kinda of let off but not all the way set car and roll back on the throttle to keep it loaded and car will not want to come around assumin there isnt something else wrong .

andykmod
Dirt Freak

Total posts: 369
posted November 21, 2005 08:37 AM  
If you are running the Harris sliders make sure the shafts are not bent. It don't take to much for one of these to bind up. Harris set-up manual recommends lf700 rf750 225lr 175rr, if you need the chassis tighter on entry it says to stiffen lf by 50lbs. The newer chassis do run softer front springs but not much, compared to the older cars. Also lower rear links are to be 20 1/4 center to center, Rear end is to be centered @ 17" But Remember it's a Copy of a Harris and some locations of the pick up points could be alittle different. Why did you change the front end???? You might have to run different wheel offsets now that you changed the front end. Also do what Harrismod30 says and do away with the brake floater, you say you don't need the brakes anyway..lol.

donslink1
Dirt Freak

Total posts: 327
posted November 21, 2005 02:53 PM  
Like I said I dont know harris set-up but just going off what he said and what Ive heard from other people, increasing spring rate on lf will tighten up entry but if the car tightens up under power after adding weight to rear just thought lowering rf would help entry and through. Sorry didnt mean to step on any toes..

redrcr88
Dirt Roller

Total posts: 15
posted November 23, 2005 08:49 PM  
didnt change spindle lust idler and pitman arm imca wont let you run the steerinbox moved foward so harris told to go back with chevell idler and pitman 30 mod what should i set the wheel base at 1/2 inch longer on right? thanks everyone for every thing

HarrisMod#30
Dirt Freak

Total posts: 368
posted November 24, 2005 07:15 AM  
what are you trying to achieve by lengtheneing it? I would try the spring swap first and see what happens.

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