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Old 02-06-13, 06:59   #1
TUF:03T
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Traction issues

Hello all,

I currently run a vl that sits quite low,

1) is it worth going down the path of coil overs, will they give me a reasonable setup for the drags

2) am I better off fitting 90/10 shocks and running stock springs in the rear at the drags

As with the current setup I can't get any weight transfer=no grip
Some one help still don't wanna give up the good looks when it's riding on 20's

---------- Post added 02-06-13 at 18:56 ----------

Please must be someone here running good numbers that has some advise.. Car run a flat 12 but with a very soft launch... Help
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Old 02-06-13, 19:33   #2
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Im not a pro on this but my old setup I had 90/10 shocks in the front and 60/40 in the rear. Was running standard rate lowered springs but not stupid low, about 2 inches off memory. All pedders stuff. Was good enough to run 10.60s. Did handle like a POS though lol. Hope this helps.
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Old 02-06-13, 20:11   #3
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I run pedders 90/10 front shocks with king super lows, rear pedders 50/50s with standard springs with 1 coil cut off. Braced lower trailer arms and adjustable uppers. Have done a 1.42 60ft on 255 radials, have the thickest non adj. sway bars I could
Buy. Car still handles relatively well!
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Old 03-06-13, 06:45   #4
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When you say you have adjustable top arms is that for 9" or does changing diff angle help traction issues too
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Old 03-06-13, 08:19   #5
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Still Borg Warner, they are off shelf from nolothane. They adjust pinion angle which helps with grip!
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Old 03-06-13, 09:12   #6
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Just get coil overs and be done with it.
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Old 03-06-13, 10:32   #7
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If that is the go ill go down that path, what is a good brand/supplier
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Old 03-06-13, 13:48   #8
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Quote:
I run pedders 90/10 front shocks with king super lows, rear pedders 50/50s with standard springs with 1 coil cut off. Braced lower trailer arms and adjustable uppers. Have done a 1.42 60ft on 255 radials, have the thickest non adj. sway bars I could
Buy. Car still handles relatively well!
My suspension setup is identical to this except for an adjustable rear sway bar and I'm doing 1.48 60ft... So like Sherm... Not bad for a pretty basic suspension setup that is still street friendly and doesn't look bad.
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Old 03-06-13, 19:38   #9
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righto what are you doin with your control arms?, have you just boxed them in? any pics..is there a way of working out most effective diff angle? also im looking to change diff gears, wanting 3.7s are machined falcon gears good?
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Old 03-06-13, 20:15   #10
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Search for photos of the arms there's heaps. Around 3 degrees is the best bet.

What gearbox do you have??
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Old 03-06-13, 21:08   #11
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Quote:
Originally Posted by sherman89 View Post
Search for photos of the arms there's heaps. Around 3 degrees is the best bet.

What gearbox do you have??
3spd jatco currently have 3.9s but tops out at 180km/hr on the strip
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Old 04-06-13, 07:42   #12
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Ive got boxed lowers amd i have the choice of whitline adj. uppers or off the shelf non adj macdonald bros upper arms. which would you guys think would be better?
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Old 04-06-13, 07:50   #13
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Definitely the adjustable. The macdonald bros ones would be to suit a certain shock/spring combo. Adjustable will give the adjustability to achieve 3 degrees at basically any sensible height.
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Old 04-06-13, 08:29   #14
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thanks mate, yeah i was planning on using the adj. i just got the macdonald bros ones with a diff i got, they are twice the thickness of the whitline ones though.
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Old 07-06-13, 13:10   #15
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Search for photos of the arms there's heaps. Around 3 degrees is the best bet.

What gearbox do you have??
Approx how much shorter are you adjusting the upper arms to get 3 deg on the diff. Do you know the centre bolt hole to centre bolt hole distance.
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Old 07-06-13, 13:24   #16
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So are you racing on 20's? The first thing I would do is stick some ET street 15's under it's bum. There's stock suspensioned VL's going 10's with a sticky tyre so it's doable.
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Old 08-06-13, 10:46   #17
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Hey TUF.. 3.7's are good, they're what I'm using in mine.. And I've actually back to back tested these gears against standard VL gears and I just couldn't get a decent 60ft..
My car starts hitting the limiter at about 225kph, which doesn't seem enough, but is just over the line at the drags, so does the trick.
Lower arms are boxed, pretty sure duz360 was selling pre cut plates which can be welded in
On here not that long ago. Otherwise wouldn't be hard to find a pic and replicate it.
If ur planning decent transbrake launches with decent boost... Strengthen up the upper control arm floor mounts.
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Old 15-09-14, 20:43   #18
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Have changed the suspension car seems to hook up on soft transbrake launch but unloads at around 10m, any ideas
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Old 16-09-14, 14:54   #19
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Talk with Kyle at 6boost, he knows vl suspension setups better than anyone. In particular if you are running radials which you should be.
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Old 18-09-14, 18:13   #20
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Have changed the suspension car seems to hook up on soft transbrake launch but unloads at around 10m, any ideas
Ideally, slowing the rear shock rebound rate and increasing the front should keep the rear loaded until you break traction.
Dialing in the boost gradually can help a lot also.

short/low diff gears won't help unless you have big rubber to match. 3.7's would need slicks or a 2-speed to get a good hook up.

for example, We ran 12.1@122MPH on 235/60 on nankang streeters w/stock Calais suspension but to do it I had to dial in the boost slowly up to half track then let it all loose. a VN 3.08:1 diff with traumatic/2800)
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Old 21-09-14, 14:53   #21
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Hey mate where you racing at the pittsworth sprints earlier this month?
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Old 30-09-14, 20:07   #22
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Yep we went for play there had a top weekend

---------- Post added 30-09-14 at 20:12 ----------

Do you think levelling the car up would help with the weight transfer I will post a pic if the car off the line it dits quite nose down with the slicks and stock suspension in the rear

---------- Post added 30-09-14 at 20:47 ----------

https://fbcdn-sphotos-h-a.akamaihd.n...338823_o.j pg
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Old 24-10-14, 19:22   #23
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im getting coilovers done now at pro 9, koni double shocks . this rear end with 9inch and koni shocks has gone 8.4 no tubs radials

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Old 24-10-14, 19:29   #24
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im getting coilovers done now at pro 9, koni double shocks . this rear end with 9inch and koni shocks has gone 8.4 no tubs radials
Same as ohh30t vl turbo red one? Boeing motorsport? Rear end in that car is perfect,leave so straight!
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Old 24-10-14, 20:00   #25
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maroon vl from melb , 275 radials twincam

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