AP2 subframe conversion
03-25-2008, 09:32 AM
#21
Registered User
I did the conversion a few years ago. The only parts needed were the subframe and upper control arms. BTW there is a difference between bump steer and oversteer 
03-25-2008, 09:35 AM
#22
Former Moderator
Originally Posted by ej0513,Mar 25 2008, 10:50 AM
but after reading about the TC design failure a while back that sort of scared me away from using their products.
For anyone else considering the TCD BSK:
I know of 2 TCD BSK failures...one the guy was using the track-car only pillow ball version on the street even though he'd been warned not to do so. And the other was a design defect that effected the earliest version...that version hasn't been in production since 2005 and TCD sent out replacement parts to everyone who purchased an early version.
03-25-2008, 09:45 AM
#23
Registered User
Originally Posted by negcamber,Mar 25 2008, 12:35 PM
Absolutely your choice.
For anyone else considering the TCD BSK:
I know of 2 TCD BSK failures...one the guy was using the track-car only pillow ball version on the street even though he'd been warned not to do so. And the other was a design defect that effected the earliest version...that version hasn't been in production since 2005 and TCD sent out replacement parts to everyone who purchased an early version.
For anyone else considering the TCD BSK:
I know of 2 TCD BSK failures...one the guy was using the track-car only pillow ball version on the street even though he'd been warned not to do so. And the other was a design defect that effected the earliest version...that version hasn't been in production since 2005 and TCD sent out replacement parts to everyone who purchased an early version.
03-25-2008, 10:19 AM
#25
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very good info on here...
does TCD BSK rearsubs only for track use?
ive been told that the AP1 suffer the rear bump steer problem but also about a more oversteer issue too. the AP2 fixed this with a the new uprgaded full rear subframe and better tires in the rear...is this true?
im trying to understand if the subframe from the AP2 really made a difference or was it just rims and tires...
does TCD BSK rearsubs only for track use?
ive been told that the AP1 suffer the rear bump steer problem but also about a more oversteer issue too. the AP2 fixed this with a the new uprgaded full rear subframe and better tires in the rear...is this true?
im trying to understand if the subframe from the AP2 really made a difference or was it just rims and tires...
03-25-2008, 10:23 AM
#26
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the subframe change allowed suspension geometry changes to dull the bumpsteer attribute in ap2's.
the different tires changed the snap oversteer issue and gave the car more understeer...along with the spring/dampener rate changes
the different tires changed the snap oversteer issue and gave the car more understeer...along with the spring/dampener rate changes
03-25-2008, 10:40 AM
#27
Originally Posted by negcamber,Mar 25 2008, 06:28 PM
03-25-2008, 12:45 PM
#29
Registered User
Originally Posted by hecash,Mar 25 2008, 03:31 PM
FWIW, the part numbers for the rear knuckles for AP1 and AP2 are not the same. To the best of my knowledge, the connection to the upper arm is different. Maybe you can cure this through alignment.
03-25-2008, 12:51 PM
#30
Registered User
Originally Posted by hecash,Mar 25 2008, 03:48 PM
What was your approach to tuning the adjustable control arms?