Infiniti Q45 Throttle Body Questions

chriso

Supranian
Apr 5, 2005
917
0
0
Bay Area, CA
I've seen that some of you guys are using the Infiniti Q45 throttle body on your FFIM's. I picked one up today from a late month 92 (possibly a 93) and was wondering what the specs are supposed to be. The one I got measures about 83mm wide at the inlet. I thought these were supposed to be 90mm (at least that's what the EBAY ones say). Also, how are you guys wiring these up since there are two connectors attached to the TPS, one with four wires and one with three.
 

gixxer750

2jzget comingsoon!
Mar 30, 2005
2,333
0
0
Mississippi
mine measures 90 mm, it's a 94 model one. I haven't hooked it up yet, so can't answer your questions. I need some answers too ;)
 

chriso

Supranian
Apr 5, 2005
917
0
0
Bay Area, CA
gixxer750 said:
mine measures 90 mm, it's a 94 model one. I haven't hooked it up yet, so can't answer your questions. I need some answers too ;)
Is that the interior diameter? Don't tell me I got the wrong one...
 

figgie

Supramania Contributor
Mar 30, 2005
5,225
16
38
50
Twin Cities, Minnesot-ah
90mm is over kill unless you are putting down over 800 rwhp ;)

and if you are going through all the work of getting a Q45 installed... the better option would have been a 86-92 Mustang 5.0 TB. Lots of sizes to chose from.
 

dbsupra90

toonar
Apr 1, 2005
2,374
0
0
indiucky
lucky for you...

nissan-

q45diag1.jpg


q45diag2.jpg



ford-

tps_wiring.JPG