Like Tree6Likes

Schumacher Mi4

Old 11-14-2010, 03:14 AM
  #2326  
Tech Master
iTrader: (17)
 
Join Date: Jul 2008
Location: Hobart TAS Australia
Posts: 1,071
Trader Rating: 17 (100%+)
Default

Originally Posted by Barger
So ...anyone heard when the new car is to be released?
last I heard Australian release has been put back to end of november, Schumacher forum says it could be even further away, waiting on quality control of new parts
lethallee69 is offline  
Old 11-21-2010, 06:00 AM
  #2327  
Tech Apprentice
 
Join Date: Oct 2009
Posts: 57
Default

Anyone advise on how to keep the rear end stable of power.

my car seems to become unstable on the rear off power racing on carpet in the uk.

running 45 wt all round, 2 deg camber all round. hara black springs on rear and hara red up front which are super hard.

anyone help with what changes mite cure this ?
Finch wxm is offline  
Old 11-21-2010, 03:20 PM
  #2328  
Tech Fanatic
iTrader: (11)
 
jrxs-r's Avatar
 
Join Date: May 2007
Location: Perth, Western Australia
Posts: 831
Trader Rating: 11 (100%+)
Default

how much rear droop do you have? Probably start by reducing it to around 1.5-2mm and seeing how that goes first.
jrxs-r is offline  
Old 11-21-2010, 05:56 PM
  #2329  
Tech Master
iTrader: (3)
 
Join Date: Feb 2009
Location: Saskatoon, SK, Canada
Posts: 1,357
Trader Rating: 3 (100%+)
Default

Originally Posted by Finch wxm
Anyone advise on how to keep the rear end stable of power.

my car seems to become unstable on the rear off power racing on carpet in the uk.

running 45 wt all round, 2 deg camber all round. hara black springs on rear and hara red up front which are super hard.

anyone help with what changes mite cure this ?
Going with a little lighter weight oil in the back and some heavier stuff in the front would make the car a little more balanced on and off power. Droop/downstop settings could also help, but I don't know how you're setting your droop, so I usually run 6 front, 5 rear or 5 front, 4 rear on the Hudy downstop gauges.

Also, is the rear end only unstable once you start cornering? Or does it start when under braking?
Danny-b23 is offline  
Old 11-22-2010, 12:06 PM
  #2330  
Tech Apprentice
 
Join Date: Oct 2009
Posts: 57
Default

it just seems to be off power cornering.

I was thinking of possibly going slightly harder on the front oil and see what happens.

think i'm still on 5 & 4 on the droop and i just use the schumacher blocks to measure it.
Finch wxm is offline  
Old 11-22-2010, 12:31 PM
  #2331  
Tech Initiate
 
Join Date: Dec 2009
Posts: 33
Default traction rolling

Good Day!

I have had my Mi4 for about 2 weeks now. Two weeks ago the car was pretty good (missed TQ by 1 second).

This past weekend, the car would flip right off the track under any hard or fast corners. I haven't changed anything between races.

The car flips off the track both directions.

I have tried:

New tires
Gluing the sidewall of the front tires
Less camber (front and rear)
more camber (front and rear)
more rear toe
less rear toe
toe out in the front
toe in in the front
Harder springs in the front
softer springs in the rear
harder springs in the rear
Angling the shocks in and out on the shock tower (front and rear alternately and together)

If I drive it at 80 to 90%, it goes around the track quite well. It is fasst and doesn't have any strange tendencies (maybe it is slightly loose)

Anybody have any ideas?

What is recomended for spring rate and shock oil?

Thanks,

Rob
Pink and Blue is offline  
Old 11-22-2010, 12:32 PM
  #2332  
Tech Master
 
NiMo's Avatar
 
Join Date: May 2004
Location: Luton, England
Posts: 1,704
Default

Try going from the kit 3mm spacers to 4mm spacers on the akermann
Will turm better for less steering lock
which could be your problem? front wheels hooking in corners off power then that sudden turning of the car on power?
(is a tip I got from Ben Cane, worked for me and Cairns)
NiMo is offline  
Old 11-22-2010, 03:55 PM
  #2333  
Tech Master
iTrader: (3)
 
Join Date: Feb 2009
Location: Saskatoon, SK, Canada
Posts: 1,357
Trader Rating: 3 (100%+)
Default

Rob,

Sometimes at larger events with more traction I find that the car want to do that when turning into hairpins and sweeping corners. I don't think there's really a setup change that will help the car in the area that won't affect the car in the other parts of the track.

Usually, for me, I find just making sure i go into the problem corners a little smoother than usual (be more progressive with the steering, and roll on the throttle rather than blipping it), the car does really well around the whole track.

Are you running on carpet? If you are I could send you a setup base from my most recent event.
Danny-b23 is offline  
Old 11-22-2010, 06:18 PM
  #2334  
Tech Regular
iTrader: (18)
 
Tread1's Avatar
 
Join Date: Oct 2008
Location: NE OHIO
Posts: 355
Trader Rating: 18 (100%+)
Default

Originally Posted by Danny-b23
Rob,

Sometimes at larger events with more traction I find that the car want to do that when turning into hairpins and sweeping corners. I don't think there's really a setup change that will help the car in the area that won't affect the car in the other parts of the track.

Usually, for me, I find just making sure i go into the problem corners a little smoother than usual (be more progressive with the steering, and roll on the throttle rather than blipping it), the car does really well around the whole track.

Are you running on carpet? If you are I could send you a setup base from my most recent event.
He's running on a high traction carpet at the Gate and at the champs this week,I know because I was stationed at the sweeper with a catchers mit this weekend lol.
Tread1 is offline  
Old 11-22-2010, 07:29 PM
  #2335  
Tech Master
iTrader: (5)
 
Chaz955i's Avatar
 
Join Date: May 2009
Location: NE Ohio
Posts: 1,108
Trader Rating: 5 (100%+)
Default

Originally Posted by Tread1
He's running on a high traction carpet at the Gate and at the champs this week,I know because I was stationed at the sweeper with a catchers mit this weekend lol.
Should have been stationed on the driver's stand with the rest of us.
Chaz955i is offline  
Old 11-23-2010, 04:03 AM
  #2336  
CA
Tech Apprentice
 
Join Date: Oct 2001
Location: UK
Posts: 72
Default

Take a look at my high grip set up in Tech Info from our last race, was very good, worth trying.
CA is offline  
Old 11-23-2010, 10:05 AM
  #2337  
Tech Champion
iTrader: (14)
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,647
Trader Rating: 14 (100%+)
Default

front roll center change along with hinge pin spacing. inner toe in
skypilot is offline  
Old 11-23-2010, 10:39 AM
  #2338  
Tech Adept
 
Join Date: Aug 2010
Posts: 217
Default

Originally Posted by Finch wxm
it just seems to be off power cornering.

I was thinking of possibly going slightly harder on the front oil and see what happens.

think i'm still on 5 & 4 on the droop and i just use the schumacher blocks to measure it.
For high-very high grip i need to run 5 & 5 droop to keep turn in and out balanced. Make sure you don't have any form of drag brake on the speedo. I also remove the rear roll bar if its a very tight track and i need to use lots of steering lock..
YZFAndy is offline  
Old 11-24-2010, 11:43 PM
  #2339  
Tech Adept
 
kiwidave72's Avatar
 
Join Date: Apr 2010
Location: Gold Coast, Australia
Posts: 163
Default cx drivershafts

anyone out there have any experience with the new cx driveshafts?
kiwidave72 is offline  
Old 11-25-2010, 11:22 AM
  #2340  
Tech Master
 
Join Date: Aug 2001
Location: England
Posts: 1,498
Default

Yes, they seem good, as posted by myself and Chris a couple of pages back. I've run both steel (kit) and alloy versions.
MattW is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.