My '87 Conquest makes a loud grinding noise when making sharp turns.   When driving straight, or just making wide turns it's silent and smooth.   Has anyone else run into this issue before? Diagnosis?

Is there a 12 valve sohc head for our cars made out there? I was reading on wikipedia and it said there was a 12 valve version of the g54b.

o.k i am a virgin here at conquest cars i need a professional answer from all you pros..........   my 1989 runs alittle on the hot side do i install a 160 degree thermastat?   i am about to add clr to my radiator and try and remove as much calcium lime and rust as possible i was going to add it then fill the rest with water and run it on 3000 rpm's for about 3 minutes then the other 2 minutes normal,then shut it off and drain it all,then do a regular radiator flush then add hyper coolent which i

So in my old car I have a 4 speaker setup with a sub but in my starion all the speakers are pretty much trash so Id like to get a new setup but Im confused. On the threads I could find here everyone seems to just delete the speakers in the dash. Is this the best idea? I can imagine the dash is a pain to get off just for speakers but wouldnt it be worth it for 6 vs 4 speakers?   Also, Id like to save as much $ as possible to buy other parts so Im trying to steal as much as possible from my old ca