Yep, we simply modified the pan to get the engine as low and level as possible. I've documented the process elsewhere on the forum. In our view, this approach met more of the success criteria for our project than spacers. Since it's a race car, we had no desire to alter the suspension geometry in any manner (beyond what we have already done to achieve acceptable handling response over the last 8+ years).
Keep in mind, that the lower control arm mounts to *both* the body and the subframe. Spacing the subframe alters the angle of the LCA, which can have an impact on any anti-dive built in to the chassis (it will increase anti-dive, in this case). It will have a 2nd-order effect on caster as well. With a lowered car, it will also further place the LCA in unfavorable, non-linear areas of the camber curve.
How much of this is relevant AT ALL to a street car is a matter of opinion, but none of it is directionally correct. However, if modifying the oil-pan is outside the scope of a particular project, it's probably not the end of the world.
-Bruce
Keep in mind, that the lower control arm mounts to *both* the body and the subframe. Spacing the subframe alters the angle of the LCA, which can have an impact on any anti-dive built in to the chassis (it will increase anti-dive, in this case). It will have a 2nd-order effect on caster as well. With a lowered car, it will also further place the LCA in unfavorable, non-linear areas of the camber curve.
How much of this is relevant AT ALL to a street car is a matter of opinion, but none of it is directionally correct. However, if modifying the oil-pan is outside the scope of a particular project, it's probably not the end of the world.
-Bruce
Comment