91 vs 90 fuel rail (difference)

[kilo4]

I upgraded my fuel feed line to #8AN. I had an extra 90 fuel rail and my car is 91. I know there many parts difference between 90 and 91. Somehow (complacent) I didn't bother checking the difference. Just want to share this for those attempting the same upgrade with the same rails. The only difference are where the stock fuel feed hose mount lugs on the rail. The 91 mount lugs faces from 2 to 8 o clock position. While the 90's mount lugs faces 10 to 5 o clock. If your porting the inlet of the 90 fuel rail you also need to grind thet 10 o clock mount lug. If not it will hit the TPS sensor and the fuel rail will not install. I was a little late on the pictures because I already modified my 90 fuel rail to a #8AN, but here it is anyways. You could also see how the 90 fuel comes close to the TPS when installed on a 91. Other than that everything else fits perfect.

I hope this helps someone else when modifying their own fuel rails.