Topic: Z51 package
in Forum: C4 General Discussion
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cruise control, is mounted above the battery. however there are holes in the left front head light, where the headlight relays are. also there is a bracket plate still there. makes me wounder if it was for the cruse control now that you mentioned it. my production number is 3,000. built 3-29-83. the weather seals are different on this car. however i just replaced the ones that where bad with ome gm parts. they fit just fine. except the outer window seal sweep had to drill a hole to put a screw in. the original ones where about a 1/4 inch longer. there are three screws that hold the seals in place on the door. the thrid screw hole thats toward the very end of the rear of the door, was drilled out from the factory about 1/4 inch longer to hold the old seal. so i had to drill a hole 1/4 of a inch inward to hold the new seal. hope that made sense.as far as the rims go, you said it should have 8.5 all the way around. thats very possible indeed. however I'm going to check out the date codes. theres no need to change them out, if they had been replaced. at one time. in the beginning i was going to have this car judged. however the cost in doing that isn't worth it. even if this car was an top flight it still wouldn't be worth the money. it's just a driver to me now. don't take me wrong it's a out standing car for it's age.
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Any 84 built in 83 had the forward cruise servo. So yours has been moved.Most of them have been. I've only seen one 84 during Judging that still retained the forward position.
Non-Z51 have 4 8.5" wheels. So the 9.5 rear's have been added. Next time you have the wheels off, take a look at the dates. It's not a "code" at all. MM-DD-YY. Not tough at all.
If you want to learn more about your car than perhaps you want to know, take it to an NCRS Judging event. Your initial event is not "expensive". The expense begins if / when you decide to improve your score. But the initial outing isn't expensive at all. Don't change anything else, just clean it and take it out. I know C4 NCRS people all over the country. If you're interested, I'll put you in touch with someone local to you. Let me know, if interested.
Non-Z51 have 4 8.5" wheels. So the 9.5 rear's have been added. Next time you have the wheels off, take a look at the dates. It's not a "code" at all. MM-DD-YY. Not tough at all.
If you want to learn more about your car than perhaps you want to know, take it to an NCRS Judging event. Your initial event is not "expensive". The expense begins if / when you decide to improve your score. But the initial outing isn't expensive at all. Don't change anything else, just clean it and take it out. I know C4 NCRS people all over the country. If you're interested, I'll put you in touch with someone local to you. Let me know, if interested.
Steering is one easy way to check if it is a Z51 or not, as this is not something that would normally be changed after shipment. the Z51 cars are about 2-1/4 turns of the wheel, lock to lock, and the non-Z51 models are neary 3 turns lock to lock.
There is no problem a little horsepower can't fix!
C4s: 1993 LT-1 coupe, 6-Speed, White w/black
1986 L-98 Coupe, 4+3 Trans, Satin Black w/red-black interior - SCCA Time Trial racecar.
C3: 1979 L-48 couple, auto, Red w/doeskin interior.
C4Shane said:
Steering is one easy way to check if it is a Z51 or not, as this is not something that would normally be changed after shipment. the Z51 cars are about 2-1/4 turns of the wheel, lock to lock, and the non-Z51 models are neary 3 turns lock to lock.
You can also take a look at the end of the steering rack. There's a "carriage bolt" looking thingy. If it has "AJ" on it, its the slow ratio. If it has "YP" on it, it's the faster, Z51 ratio. Requires use of a mirror.
Here's another Z51 tid-bit: Because the steering wheel doesn't have to be turned as far for the same radius turn (such as a sweeper, LH turn in an intersection) the turn signals on an 84-85 Z51 may not cancel reliably. On a standard suspension, they do because the steering wheel is turned further, and activates the cancel cam. The turn signal cancel cam was eventually changed for Z51 to cure this problem, but I'm not sure when. My April, 85 car has the slow-ratio cancel cam.
|UPDATED|1/13/2013 9:16:25 PM (AZT)|/UPDATED|
in Forum: C4 General Discussion
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