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04-27-2010, 03:55 PM
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#21
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Name: PSDPlayer
Title: Captain Negativity!
Status: Not Here
Join Date: Apr 2006
Location: Ft. Lauderdale, FL
Member`s Gallery
Posts: 3,284
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Quote:
Originally Posted by SMOKIN93
Just set the record over the weekend for the fastest converter driven pro mod, 6.04 242, never been on a set of scales.
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I thought Coby Rabon was in the 5s on an automatic?
__________________
05 CC LB DRW Lariat 4x2 Dropped 3/6.
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04-27-2010, 10:04 PM
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#22
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Name: diesel junkie02
Title: I NEED MORE COWBELL!!
Status: Not Here
Join Date: Feb 2007
Location: brenham, tx
Member`s Gallery
Posts: 134
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Subscribing...
__________________
02,dodge
monster 2 vp
6 X.13 FBD injs
.093 stainless lines(for sale)
afe stage 2 cold air
3600 DD
black stacks
150/150 FASS and draw straw
516/1148
"Speed is money, but knowledge is power"
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05-05-2010, 10:32 AM
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#23
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Name: they all break
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2009
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Posts: 38
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They make a computer program to figure out roll center. We use it to help us set up are super late model and pro late model. Another thing that is help full is a shock dyno are someone that has one. Having the proper shock set up is just as important. Most of the time people just buy shocks of the shelf but if you want that edge shocks are it.
P.S If you say shocks aren't important then go hide in a hole.
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05-05-2010, 07:25 PM
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#24
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Name: bmarlatt
Title: Mirrors Down
Status: Not Here
Join Date: Sep 2008
Location: Rushville, IN/West Lafeyette, IN
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Posts: 390
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How about some pictures? or maybe even some drawings, for those of us who will probably never build one but wanna learn anyway.
__________________
Brian Marlatt
98 12valve QCFB Slow and reliable...
95 CJ-8 Cummins power and 37's...
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05-06-2010, 08:39 AM
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#25
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Name: Hurley
Title: BLAKLUNG
Status: Not Here
Join Date: Apr 2008
Location: Statesville, NC
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Posts: 3,698
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Here is mine, uppers are triangulated 40deg for lateral support.
(mine may be an example of what not to do haha. At some point the lower control arms and the coilovers may be mounted inboard for a narrowed axle)
__________________
THIS
IS
COMPD.
95 2500 RCSB 2wd back-halfed and 4-linked
5x14/7mm +100cc/4k/11-blade billet 63/68/.91 T4
539/989
03 RCLB 4x4, SSR
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05-06-2010, 07:23 PM
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#26
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Name: 12vriviera
Title: That Guy with that car
Status: Not Here
Join Date: Mar 2009
Location: north texas
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Posts: 6,846
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you wont need to. but if they arent triangulated, you could add a panhard bar or watts linkage to keep axle located
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05-06-2010, 09:32 PM
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#27
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Name: they all break
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2009
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Posts: 38
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I would make your uppers adjustables and move the shocks to the inside. Looks clean though
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05-19-2010, 12:41 PM
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#28
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Name: sstockton
Title: Too Much Time
Status: Not Here
Join Date: May 2007
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Posts: 369
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This is very interesting and I would love to learn about this. How much do you think you saved in weight by back halfing your truck and going to the 4 link? My buddy and I were just throwing this idea around for his race truck, seems like it could shave a lot of weight since he is a long bed.
Sean
__________________
Its a blue VP truck with twins and a built auto.
09 6.7L QC LB, 4x4 south bend 3250.
New 12v project. 95 single cab 4x4 with a built auto and some light mods to start.
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05-19-2010, 01:32 PM
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#29
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Name: 1lowdiesel
Title: Too Much Time
Status: Not Here
Join Date: Sep 2007
Location: Shelbyville, In
Member`s Gallery
Posts: 2,019
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Quote:
Originally Posted by they all break
I would make your uppers adjustables and move the shocks to the inside. Looks clean though
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x2 just get some adjustable ends from Suicide Doors.
I wonder if putting the coilovers inboard of the frame and angle them towards the center would make it handle a little better.
I know with my parallel link, panhard and shocks on rear lift bars i will get a little roll around turns.
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05-19-2010, 03:12 PM
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#30
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Name: morkable
Title: Just Over Broke
Status: Not Here
Join Date: Jan 2008
Location: Stony Plain, Alberta
Member`s Gallery
Posts: 5,956
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I would imagine the science would be the same for a 4wd truck also? I plan on doing a 4 link on my truck this coming winter.
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05-19-2010, 08:04 PM
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#31
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Name: Hurley
Title: BLAKLUNG
Status: Not Here
Join Date: Apr 2008
Location: Statesville, NC
Member`s Gallery
Posts: 3,698
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^it is, for the rear suspension haha.
1lowdiesel, i remember us talking way back when- Positioning the coilovers farther from the centerline of the axle gear housing will decrease the amount of body roll with a given spring rate. For anyone that is curious why my coils are where they are, this is the reason. I am running 150#/inch springs and have pretty minimal body roll compared to a truck that is a twin to mine originally
here's mine at launch:
A$$ down, and yes, the launch was soft - i was barely making 7psi when i left the line...the next time i blew through the tires after about 50ft
__________________
THIS
IS
COMPD.
95 2500 RCSB 2wd back-halfed and 4-linked
5x14/7mm +100cc/4k/11-blade billet 63/68/.91 T4
539/989
03 RCLB 4x4, SSR
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06-09-2010, 09:36 PM
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#32
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Name: Diesel_Weasel
Title: THE Lurker
Status: Not Here
Join Date: Apr 2008
Location: Oakhurst, CA
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Posts: 48
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From my limited understanding... all from Pirate4x4 reading... Triaged, ErikB, and Booger_Weldz are the guys to talk to...
I think you are going to want to bring your AS down in the 50-60% range and then play with it from there.
A good rule of thumb for finding quick CQ without measuring too much is to use the top bellhousing bolt as a reference.
Also, get your RA down in the -1*to -2* range to make it handle better at speed. Roll Oversteer can get SCARY quickly...
Personally, I would triangulate both uppers and lowers for more lateral stability, or run a 3 link with a panhard. 4 links with panhard have inherent binding qualities if you run joints with little deflection.
... but really, if you want to get spot on, you are going to need corner weights and also more numbers with your coilover inclination and mounting in respect to your links and axle.
...or you can just stab at it in the dark until it "feels right", the more information you get yourself the less you have to "stab"
__________________
2000 F-250 CC SB 4x4 ZF6
~2005 HPCR 5.9, Smarty, 392 Walbro
~5" Exhaust
~8" Icon Lift with 38" Toyo's
~Homemade Hydraulic Steering Asst
~Dual Taurus Fans
~Banks 6.0 Intercooler
~3850 DD SB Clutch
463 rwhp @ Left Coast Diesel 5/3/09
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06-10-2010, 12:00 AM
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#33
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Name: 24VChevy
Title: Ram-Bow
Status: Not Here
Join Date: Jul 2006
Location: Nanaimo
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Posts: 724
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I just took my truck over to a fabrication shop to help set up my suspension and adjust the 4 links. I thought that I had it all figured out, man not a hope. I had it all wrong, problably the main reason I got out of shape and hit the wall. They are going to square the truck up and then scale it. Hopefully it will launch better and drive a little better down the 1/4.
Weather permitting I will be testing this weekend.
Malcolm
__________________
Pro Stock build: 96 Impala SS "The Diesel DoorSlammer!"
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06-11-2010, 11:57 PM
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#34
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Name: joefarmer
Title: MR. Supreme Overlord
Status: Not Here
Join Date: Jul 2006
Location: ohio
Member`s Gallery
Posts: 6,137
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Quote:
Originally Posted by 24VChevy
I just took my truck over to a fabrication shop to help set up my suspension and adjust the 4 links. I thought that I had it all figured out, man not a hope. I had it all wrong, problably the main reason I got out of shape and hit the wall. They are going to square the truck up and then scale it. Hopefully it will launch better and drive a little better down the 1/4.
Weather permitting I will be testing this weekend.
Malcolm
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Did they say what they changed up on your links? Instant Center?
__________________
brandon'); DROP TABLE Users;--1948 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup' | 08 F250 CR RE swap | 05 2500 CR 68 standalone
firepunk.com
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06-14-2010, 08:23 PM
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#35
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Name: 24VChevy
Title: Ram-Bow
Status: Not Here
Join Date: Jul 2006
Location: Nanaimo
Member`s Gallery
Posts: 724
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They changed alot, move the four links down 3 holes on the upper, changed the rear track bar from a lateral bar to one that bolts to the lower four link brackets and is now a diagonal track bar. Changed the shock mounts preloaded the four link set up the springs on all four corners. They made a list that they would change further but that will happen later on. I was really supprized to see my weight distrubution. I am heaver on the rear of the truck than the front. total weight for the truck is just a hair under 4500 lbs. with a 51% of the weight on the rear tires. I have bolt on weight in the back of the truck they want me to move them to just in front of the rear tires.
Now the truck does a straight burn out and launches straight and drives great. Another thing that I noticed is how easy it rolls now when we push it.
Guess it was pretty bad....
Malcolm
Thanks to A & A performance.
__________________
Pro Stock build: 96 Impala SS "The Diesel DoorSlammer!"
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06-14-2010, 11:01 PM
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#36
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Name: joefarmer
Title: MR. Supreme Overlord
Status: Not Here
Join Date: Jul 2006
Location: ohio
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Posts: 6,137
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I wonder what caused the rolling resistance change? I know mine pushes way harder than I think it should. Maybe my preload is messed up again.
__________________
brandon'); DROP TABLE Users;--1948 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup' | 08 F250 CR RE swap | 05 2500 CR 68 standalone
firepunk.com
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06-14-2010, 11:14 PM
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#37
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Name: 24VChevy
Title: Ram-Bow
Status: Not Here
Join Date: Jul 2006
Location: Nanaimo
Member`s Gallery
Posts: 724
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I forgot to mention that they also fixed the front suspension camber, caster and toe, I would imagine that the toe had alot to do with it. My truck was not set up at all. I did take it to someone else a year ago but I guess they did not set it up.
Malcolm
__________________
Pro Stock build: 96 Impala SS "The Diesel DoorSlammer!"
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06-14-2010, 11:20 PM
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#38
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Name: joefarmer
Title: MR. Supreme Overlord
Status: Not Here
Join Date: Jul 2006
Location: ohio
Member`s Gallery
Posts: 6,137
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Quote:
Originally Posted by stock600
Front to rear 4 bar adjustment will cause that faster than anything. With a spool or locked rear diff., if one side is even as much as 1/8" forward of the other is will be very noticable hard to push, the fronts are steering it to go str8 and the rear is tring to crab.
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Ah, that's the case. I'm 107 13/16 driver wheelbase and 107 15/16 passenger wheelbase. My leaf springs are showing quite a bit of movement. I should probably just backhalf it and be done. Wouldn't be the first time you're right, Ryan.
__________________
brandon'); DROP TABLE Users;--1948 Dodge 1.5t 12v RH swap | 99 F250 12v RE test rkt | 11 X5 'no soup' | 08 F250 CR RE swap | 05 2500 CR 68 standalone
firepunk.com
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06-15-2010, 07:19 AM
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#39
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Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,975
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Quote:
Originally Posted by joefarmer
Ah, that's the case. I'm 107 13/16 driver wheelbase and 107 15/16 passenger wheelbase. My leaf springs are showing quite a bit of movement. I should probably just backhalf it and be done. Wouldn't be the first time you're right, Ryan.
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WHOA....nice torque Brandon
Chris
__________________
THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply
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