Guys, will an 89-92 TB work on an 88 or older TPI setup? Is there a difference in them? I thought the only differences was in the MAF vs speed density stuff. Help please. Looking to buy a TB but want to make sure it will work on my car first.

 

Anyone?

 

Don't quote me on this, but I think there are only subtle differences between the years. If you are asking if it will bolt up, yes it will. Will it run? yes. Will it run properly? I don't know. Try running a search because I believe this topic has been brought up before. Hope that helps.

 

Thanks, I'll try a search too...

 

No problem... I just looked at some of summit's throttle bodies they carry, and they are listing different part numbers for those years... maybe there is a bigger difference, but I'm not positive. Sorry I can't be of more help.

 

I'm wondering if the differences are in vacuum ports, etc. Aren't the pre-'88 cars MAF and the '89-'92 cars speed density?

 

I thought '90-92 were SD and '89 older were MAF, but I could be wrong. The tech at summit seems to think that's the reason why they are different. I know that there IS a difference in them, but for the life of me I can't remember what it is.

 

https://www.thirdgen.org/techbb2/sho...+Throttle+Body


Check that out....you'll find alot of the answers there....

 

You can connect the throttle cable for your 85-88 to the 89-92 throttle body where the cruise control should go. Or you could just go buy a throttle cable for a 89-92 car.

 

thats exactly what i did,like said above,i have a 90 on my 87 setup.