Looks like they moved the tie rod mounting points forwards on the knuckles too
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S54 Custom Oil Pan BMP Conversions
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Y'know, with a little Paint geometry, ASSuming the pic is at 90 to the plane of the steering,
that would work. It WOULD have very little Ackerman angle, as the near-
parallelograms formed by the rack, arm, hub and body are pretty much parallelograms,
but, barring the tie rod ends being other than where they SEEM to be, it'll be OK.
A bitch to park, tho, I'd expect! Lighten up nicely at speed? Prolly.
I dunno. I'd drive it before I bought it, certainly!
t
thinking it'll be easier to wet- sump it... but certainly not cheaper!
now, sometimes I just mess with people. It's more entertaining that way. george graves
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So Arc Asylum isn't making sub-frames any more?
Originally posted by R3Z3N View PostSo it seems Tyler @ ArcAsylum disappeared.
And BMP Conversions just may have your answer. I saw this on their Facebook page, and it looks like they have made a few versions. Not sure which is current, or how the pan is modified, or how the ackerman is affected due to placement of the rack, not sure how far forward it is of the knuckle point.
Here's their Facebook
And Website
No affiliation. Best of luck with your builds. BTW if you need DME coding, check my sig. No one should pay for swap coding anymore. I'll also offer to walk you through via a remote session.91' 318is 90' 325is
Originally posted by SonnyBuy the E30s, they ain't gonna last long
E30 can make you, E30 can break you
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Ackerman is NOT effort.
Ackerman geometry turns the outside tire further than the inside tire so that they're both turning around a common center point and aren't fighting each other.
A car with bad Ackerman will shudder as the tires chatter when turning at full lock, but that doesn't equate to particularly high wheel effort.
It really comes down to this: Will you accept the parking lot behavior in order to have an S54?
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Originally posted by The Dark Side of Will View Post
It really comes down to this: Will you accept the parking lot behavior in order to have an S54?e30sport.net
'15 Porsche GT3 - 7-speed PDK - Daily Driver
'86 325es - s54b32tu - 6-speed - Mtech 1
'89 325is - m20b25 - 5-speed - Individual
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The geometry of the steering rack is copied from an e36 as he states in this video...
This is just an update video of the progress of the build showing all the new parts being fitted. I'm loving building this car
He talks about how he recreated all the e36 geometry, not just slap 5 lug struts on an e30 "and hope for the best".
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Ackerman is NOT effort.
at low speed, as the front wheel(s) scrub.
I made the ASSumption it was unboosted, and having removed the geometry that creates Ackerman
from a race car with a rack conversion, it WAS hard to steer at low speed. But that
car had tires like our victim. And was unboosted. Went great at speed, tho.
Ackerman geometry turns the inside tire further than the outside tire
into the corner more.
tnow, sometimes I just mess with people. It's more entertaining that way. george graves
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Originally posted by ForcedFirebird View PostThe geometry of the steering rack is copied from an e36 as he states in this video...
This is just an update video of the progress of the build showing all the new parts being fitted. I'm loving building this car
He talks about how he recreated all the e36 geometry, not just slap 5 lug struts on an e30 "and hope for the best".1989 332IS -S-Fiddy Four-Some weight removed.
5 lug E36 M3 Brakes Coilovers and LTW's and No ABS.
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Originally posted by The Dark Side of Will View Post
This is a RHD car.
This is a LHD car. Packaging the spool valve on the rack appears to be what requires cutting the oil pan.
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Originally posted by ForcedFirebird View PostThe geometry of the steering rack is copied from an e36 as he states in this video...
This is just an update video of the progress of the build showing all the new parts being fitted. I'm loving building this car
He talks about how he recreated all the e36 geometry, not just slap 5 lug struts on an e30 "and hope for the best".
Maybe all this was taken into account, but if someone wants to replicate the setup its something to be aware of.
For all these reasons I still feel that keeping with the factory E30 suspension geometry and parts is the best path. The OE geometry is not perfect, but the negatives are well known and the solutions are known as well. Once you start mixing and matching you open pandoras box, especially if you don’t understand the implications of the changes. Getting things to bolt in and having the wheel centered is the bare minimum to consider 😃-Nick
M42 on VEMS
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Originally posted by wazzu70 View PostIts hard to see but copying the E36 geometry for rack placement only works if the upper strut mount is in the same location. The E36 damper tube is obviously much more vertical than the E30 which “reclines.” This impacts the caster/mechanical trail of the suspension and has a big impact on steering feel & wheel centering.
Originally posted by TobyB View Post
Fixed that for ya. The inner radius is smaller, so the inner tire needs to be steered
into the corner more.
t
Originally posted by nando View PostLook closer. They are completely different designs. One kept the original tie rod location, the other moved it to the other side of the struts.
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