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Author Topic:   Wheelbase on a Pierce Car ????
155fan
Dirt Maniac

Total posts: 163
posted December 19, 2004 07:41 AM  
Anyone know what a pierce car wheelbase is and I also heard that the clip was cocked on the frt. with the left side wheelbase being shorter than the rt. . I need a measurement from the motor plate to the main center hole on the top in the crossmember if possible . What kinda percentages are they runnin also with or without driver scaling ? Thanks

donslink1
Dirt Freak

Total posts: 318
posted December 19, 2004 10:58 AM  
Yes he puts lead in his front end. The wheel base is 108" on the left and 108 3/4" on the right with the rear end square. If you are going to restub one I would really consider calling him and talk to him. I know he does that real fast and pretty reasonable. If you were going to do that i would get on the list I know he is like 35 cars behind. but it doesnt take long once you get in.
with 20 gal. of fuel race ready with out driver, you should have 56.5 rear ( with steel heads) if driver is 200 and under run about 40# lf rear bite if driver is heavier than 200# anywhere from 35 - 10# of lf rear bite. with 1" of stagger front and back.
Ride heights just make back bottom links level and rt front shock length from center of bolt to center of bolt 17" and lf front 16 1/2". that is why it would be a good Idea for him to do it because everything is measured off the chassis it does not have frame to the ground measurements, Because of tire sizes. hope this helps

155fan
Dirt Maniac

Total posts: 163
posted December 19, 2004 01:39 PM  
To be honest I was wonderin how close my motor position is to a Pierce is why I was mainly wanting the motor plate to that main center hole on the top of crossmember measurement . If you could help that would be great ....I'd like to know where my car is to his by that motor location . How much rear % should you get with alum. heads too ? Thanks

bp22m1
Dirt Full Roller

Total posts: 69
posted December 20, 2004 10:15 AM  
we have a 2004 pierce overslung chasis and scaling it in is a time consuming process. depends on what kinda track ur running on. momentum track u want less lr weight.

155fan
Dirt Maniac

Total posts: 163
posted December 20, 2004 04:46 PM  
Anyone care to give that measurement or top secret ?? HeHE

donslink1
Dirt Freak

Total posts: 318
posted December 20, 2004 05:10 PM  
Sorry, Every time I go out in the shop i forget about it, But if you look at it 72" from the midplate to the center of the axle tube, and it has a 108" wheel base. I know it is more complicated this way, Next time I will try measuring.

GRTWallbanger
Dirt Maniac

Total posts: 196
posted December 20, 2004 06:47 PM  
56% rear?
Is this for ump or imca tires?Seems light for imca tires.

LATE MODEL 9W
Dirt Full Roller

Total posts: 66
posted December 21, 2004 10:41 AM  
Just measured mine and it was 37 5/8ths from the front of the motor plate to the center of the big hole on the middle of the crossmember. Just got my Pierce car back from being stubbed and updated to new mounts and they did a heck of a job on it!!

donslink1
Dirt Freak

Total posts: 318
posted December 21, 2004 03:11 PM  
We just got our 05 and that is one thing they are nice cars, well built, I dont like there new rear bumper mounts.

155fan
Dirt Maniac

Total posts: 163
posted December 21, 2004 04:51 PM  
So does that mean that they don't have 72" from motor plate to center of rearend because we have a 110 car with that same measurement to the crossmember from the motorplate . Anyone got a car together to see if it's 72" from motorplate to center of rearend ? Thanks

donslink1
Dirt Freak

Total posts: 318
posted December 21, 2004 07:59 PM  
right on the head, is yours 72", We run nova lowers which move the ball joint 2" forward

bp22m1
Dirt Full Roller

Total posts: 69
posted December 21, 2004 10:57 PM  
have any of u run pierce chasis before or u just getting new one?

155fan
Dirt Maniac

Total posts: 163
posted December 22, 2004 05:50 AM  
Yep , that's why it doesn't make sense with the nova lowers , 72" on the head , and that measurement of 37 5/8 is exactly what my car is but it is 110" . Somethin ain't jivin somewhere on mine or the Pierce with it being 108" and all the same ingredients . Huh

WPP
Dirt Freak

Total posts: 451
posted December 22, 2004 06:50 AM  
I kinda see what 155fan saying because the rear is square in the car see if the crossmember has been cut and moved because i have heard there was some changes there is the pitarm and the idler the same across from each other. The only thing i know these car are built right their fast i can not take that away from Bob his car has been the best in the 2004 season but he does have some very good drivers the ones i know Denny Chad Billy and more comeing in 2005 so watch those pierce cars 155FAN PM ME YOUR PHONE NUMBER THANKS

donslink1
Dirt Freak

Total posts: 318
posted December 22, 2004 04:27 PM  
No he doesnt cut the frame up, He turns it to put lead in it. and we run all metric steering, drag link, idler arm and pitman arm. but we do run a different tierod end it has a bend in then so the hang lower on the spindle, Because we bolt the tierod right to the bottom of the spindle arm, No spacer. Did you measure your car 155fan, Is yours 72"

155fan
Dirt Maniac

Total posts: 163
posted December 22, 2004 07:45 PM  
Hey Don , yeah I had already measured my car and that's what I was sayin about having all the same ingredients but a 110" car . Someone told me the Pierce car motor was set back to far for the 72" measurement but I really wanted to know where the motor was located to the clip was what I was after to compare with mine . He does have to notch the frt. crossmember though ....doesn't he ... because my motor is tight without notchin the member ? Denny told me that they use that camaro tie rod that drops down only so they don't have to put time in notchin the rails for clearance . Thanks

donslink1
Dirt Freak

Total posts: 318
posted December 22, 2004 08:16 PM  
Ya I saw you measured after I posted last, It is goofy. When we went to Osky last year to the usmts show in April. that was one of the first things they checked, and one of our buddies didnt have his link lengths set right and the wheel base was 1/16 too short, We readjusted and the wheel base was good. So I dont know what is going on. But no the only thing on the crossmember that is cut out is for the radiator. nothing for motor clearence. and that is a good thing they changed tie rod because we still hit the frame every now and again. what type of chassis do you run.

155fan
Dirt Maniac

Total posts: 163
posted December 22, 2004 09:53 PM  
It's gonna be a new chassis brand that's never made a lap . www.dominatorracecars.com and scroll down the main page to see the 2 pictures of my car that Brandon built . This wheelbase/motor placement deal has me puzzled between the 2 of em . Thanks

hiredgun
Dirt Forum Racer

Total posts: 78
posted December 23, 2004 06:57 AM  
hmmm I wonder why he dont run the Camaro drag link everyone claims works.
I do know from my exper. that leaving the outer as close to the bottom of the arm as possible helps bump rather than spacing it further down , hench him staying with the stock type end out there and getting one with a bend to help with that clearence deal. I guess leaving all the stk. steering stuff just makes it easy to get parts.

ko99
Dirt Roller

Total posts: 19
posted December 23, 2004 12:06 PM  
THE LOWER A FRAMES IS WHAT CHANGES UR WHEELBASE AND MAKES IT LONGER. THE 72 INCHES STAYS THE SAME.

OppendikeRacing29
Dirt Maniac

Total posts: 135
posted December 23, 2004 12:35 PM  
so shoould you center the rearend from the motor plate or from the front wheels

spde
Dirt Freak

Total posts: 243
posted December 23, 2004 12:53 PM  
Anyone thats got a question on the Pierce car and wants to call me, I can try an help out. Anytime 573-480-5980 ltr

155fan
Dirt Maniac

Total posts: 163
posted December 23, 2004 01:40 PM  
Hey ko99 , yeah I understand all that . It's looking as if the lower a frame mounts have been cut and moved back in order to keep the 108" wheelbase , 37 5/8 from motor plate to center of crossmember hole , and 72" from motor plate to center of rearend for it to be a 108 car because my car is 110 with all the same ingredients .....nova lowers on a metric clip , 72" from plate to center , and 37 5/8 " from hole to plate . I can't see any other way to have a 108 car that's legal by those measurements other than being illegal by moving the lower a frame mounts ...unless i'm missin somethin ? Thanks

donslink1
Dirt Freak

Total posts: 318
posted December 23, 2004 02:04 PM  
No the lower mounts are not moved. If they are he is real good at doing it so you cant see. I mean the mounts are formed right in the frame. you measure your car and it is 110"

hiredgun
Dirt Forum Racer

Total posts: 78
posted December 23, 2004 02:29 PM  
HMMM so how do you get a 108 car with nova lowers, keep the 72 inch. and not slide the clip back on the chassis ? I dont see how without some creative fab work. Some one PM me Bc i want to put novas on my metric and would like to keep the wheelbase short

Istock66
unregistered Total posts: 78
posted December 23, 2004 05:04 PM           send a private message to hiredgun   Edit/Delete Message   Reply w/QuoteBBBBBB
Slot out the lower a arm mounting holes in order to put the nova lower ball joint back where you want it for your wheel base.

Then weld washers over the holes when your done.
If you want to lead the rf as mentioned above it would sure be better to do it this way then put the clip in crooked in my opinion. With a crooked clip your steering would have to be off center in order to go straight,the swing arc of your a arms would be affected along with everything else... What a huge can of worms.

Not saying it wont work, heck most cars are faster after a crash and minor bend then they were before!!

donslink1
Dirt Freak

Total posts: 318
posted December 23, 2004 08:25 PM  
If you did that it is very easy to see and is braking the rules. Rocket L/M build lead in there front end too. and it cant mess to much up cuz Pierce cars won just about 300 races this year and is the ump manufacturing champ.

ko99
Dirt Roller

Total posts: 19
posted December 23, 2004 08:40 PM  
Exactly Don how could you move the lower mounts when they are made in the stub???

Istock66
unregistered Total posts: 19
posted December 23, 2004 09:43 PM           send a private message to ko99   Edit/Delete Message   Reply w/QuoteBBBBBB
Relax donslink I could care less whos cars won what. We are talking dirt track mods here whooo hooo, nobodys getting rich or famous from anything they accomplish in one that I know of.

A person asked a simple ? about how to put nova lowers on and retain his short wheelbase. I gave him one answer, offset bushings would also do it same exact principle.

Almost all of the stock clip cars have "corrected front lower control arm mounts" which in short is the holes reamed and a rod slid thru them to assure bind free movement then washers are welded over the holes. Old news and advertised on almost every website for mod, hobby and stock car chassis.

155fan
Dirt Maniac

Total posts: 163
posted December 23, 2004 10:01 PM  
Hey ko99 , I just now thought about the frt. mount that is actually up in the crossmember ......therefore the crossmember and the rear a mount would both be moved and I don't see em doin that . I do have what looks to be the same angle on my tie rods runnin from the centerlink to the spindle arm as a pierce with the same components other than I have a short Corvette stock inner tie rod . I'm suppose to call Kevin at spde and get some more specs ....he's a pierce dealer in Missouri . Still puzzled here

WPP
Dirt Freak

Total posts: 451
posted December 24, 2004 05:48 AM  
Is the pierce cars 108 with the stock lowers and 108 with the fab lowers it would not take that much reaming on the holes to get 3/4 lead but he gets the lead with the frontend twisted hum

WPP
Dirt Freak

Total posts: 451
posted December 24, 2004 07:01 AM  
155FAN GO TO CHAT IF YOU ON HERE

donslink1
Dirt Freak

Total posts: 318
posted December 24, 2004 08:45 AM  
Im not getting all wound up. All I am saying there are no washers welded on the stub and if the holes are reamed you would see it. you say no one is getting rich, Bloomquist won $100,000 last year Kelly Shryock won $108,000 I would say that is some good money running a mod.

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