History / Originality Got a question about 1982-1992 Camaro or Firebird history? Have a question about original parts, options, RPO codes, when something was available, or how to document your car? Those questions, answers, and much more!

noobee-check digit-what does it mean?

Old Feb 13, 2007 | 06:56 PM
  #1  
hot92RS's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 334
Likes: 1
From: Jupiter, Florida
Car: 92 Z-28
Engine: 305 TPI
Transmission: THM700R4
Axle/Gears: 2.73
noobee-check digit-what does it mean?

My chilton manual for my RS explained very clearly, but I still do not understand the check digit thing. what's more, I am looking at another 92 only this is a z-28. the vin # is 1G1FP23 F3 NL 105695. From what I have read on the forum, I believe the only way I can be sure it is a z is from the RPO codes? Is that right? Yes, I do understand it is a 5.0 TPI. Any help is deeply appreciated.
Reply
Old Feb 13, 2007 | 07:16 PM
  #2  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
The check digit is a code that's calculated from the rest of the digits in the VIN to help detect any errors in typing or scanning.

The only way to know the car is a Z28 is to check the RPO codes. Sometimes you the VIN sometimes can tell you that a car is not a Z28 if it says that the car originally had a V6 or an L4, but that's about it.
Reply
Old Feb 13, 2007 | 09:40 PM
  #3  
92RS(real slow)'s Avatar
Supreme Member
15 Year Member
 
Joined: Sep 2005
Posts: 2,151
Likes: 0
From: Osceola Indiana
Car: 92 RS(sold) 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: ones that turn
If it is a 5.0 tpi then it's a z28 you could not get tpi in a RS unless its a b4c but those got 350's so if it's tpi then its a z28
Reply
Old Feb 14, 2007 | 05:32 AM
  #4  
hot92RS's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 334
Likes: 1
From: Jupiter, Florida
Car: 92 Z-28
Engine: 305 TPI
Transmission: THM700R4
Axle/Gears: 2.73
Thank you once again for all your help.
Reply
Old Feb 14, 2007 | 08:18 AM
  #5  
okfoz's Avatar
Moderator
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 14,298
Likes: 197
From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
To figure the Check digit, you take each letter and assign them a number, then you take each number and multiply them by another number and then add all of those numbers together, you divide by 11 and then the remainder is the check digit.

Confused?

Yes that car is indeed a TPI Z28 car...

John
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 09:16 PM.