#151 (permalink)  
Old 06-12-2007, 10:32 PM
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Re the LSD in an alfetta, as it is only a 25% lock up (or 50% if tweaked with extra clutch plates) the inside wheel can still spin quite noticibly. A bit less roll stiffness at the back (or more at the front) will help put less emphasis on the diff for traction.

My GTV6 has way too little roll stiffness and despite having an LSD will lay big long black lines on the way out of second and third gear corners without a lot of provocation due to too much body roll (on the race track obviously ).

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  #152 (permalink)  
Old 06-12-2007, 11:04 PM
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Listen, some wheelspin in the really tight corners are acceptable as a trade off, it's better then getting it sideways as that generally brakes the car.
You have to realize that you can't always have 100% grip both accelerating and steering in every situation, if you did the car would understeer like a pig. Use the accelerator with moderation and waaaaait for the car to come out of the turn before you slam the right foot down. H3ll, even F1 has traction control...
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  #153 (permalink)  
Old 06-12-2007, 11:57 PM
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Quote:
Originally Posted by BigSwede View Post
Listen, some wheelspin in the really tight corners are acceptable as a trade off, it's better then getting it sideways as that generally brakes the car.
You have to realize that you can't always have 100% grip both accelerating and steering in every situation, if you did the car would understeer like a pig. Use the accelerator with moderation and waaaaait for the car to come out of the turn before you slam the right foot down. H3ll, even F1 has traction control...
yep, agree on all that, good advice .
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  #154 (permalink)  
Old 06-29-2007, 08:08 PM
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Drop Spindle pics

Was doing these today, & took a couple of comparison pics of stock spindle behind a properly fabricated drop spindle with steering arms adjusted for bump steer & slight Ackerman increase.
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Last edited by Alfar7; 06-30-2007 at 08:41 PM.
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  #155 (permalink)  
Old 07-03-2007, 08:05 AM
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omg, from what I have seen that is way to much of a relocation of the joint.

Please don't ask me for numbers as I don't have any but think millileters instead of centimeters.
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  #156 (permalink)  
Old 07-03-2007, 10:43 AM
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Quote:
Originally Posted by BigSwede View Post
omg, from what I have seen that is way to much of a relocation of the joint.

Please don't ask me for numbers as I don't have any but think millileters instead of centimeters.
Mats its looks right for lowered front + droped spindle me thinks
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  #157 (permalink)  
Old 07-03-2007, 05:02 PM
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Thumbs up Dropped Spindles

Quote:
omg, from what I have seen that is way to much of a relocation of the joint.
That Set of Spindles is the max that I will do. They are only 1.5 inches (38mm) done for 18 inch (457mm) wheel.....

Typical drops for various wheel sizes are:
15 "- .65 inch
16" - 1.0 inch
17" up- 1.5 inch
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  #158 (permalink)  
Old 07-03-2007, 11:34 PM
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What is the location of the joint based on? Calculations or testing? Both?
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  #159 (permalink)  
Old 07-04-2007, 03:13 PM
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spindle location

where we want it.......
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Old 07-05-2007, 05:52 AM
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Why do you want it there?
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  #161 (permalink)  
Old 07-05-2007, 08:17 AM
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You guys are talking about the LCA ball joint right?
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  #162 (permalink)  
Old 07-05-2007, 08:44 AM
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Quote:
Originally Posted by Grant View Post
You guys are talking about the LCA ball joint right?
LCA ball joint and bump steer?
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  #163 (permalink)  
Old 07-05-2007, 09:23 PM
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Pardon my ignorance, but bump steer is namely effected by the tie rod location, and not the LCA correct? So you are implying they are talking about both the LCA ball joint and the tie rod ball joint?
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  #164 (permalink)  
Old 07-05-2007, 11:03 PM
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We're (at least I am) talking about the modified steering arm as seen on the above modified spindles/uprights.
I'm trying to get an answer to how he came to that position of the joint, at the moment Alfar7 is either playing dumb because he doesn't want to answer or he did it by gut feeling and haven't got a clue what really happens.
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  #165 (permalink)  
Old 07-06-2007, 08:09 AM
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Mats,

Maybe he arrived at that position from experience? He's been a racer for quite a while and won a few races in the SCCA GT2 class. I'm assuming he must have had the opportunity to try a few steering arm position.
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