|
| Search | Car Forums | Gallery | Articles | Helper | Air Dried Fresh Beef Dog Food | IgorSushko.com | Corporate |
|
|||||||
| 240Z | 260Z| 280Z | 300ZX (Past Z Cars) The original Z cars - ones that started it all. |
 |
 Show Printable Version | 
Subscribe to this Thread
|
|
|
Thread Tools |
|
#1
02-13-2006, 10:53 PM
|
|||
|
|||
|
poor fuel economy.... problems?
So i just bought this Z31. It has 62,500 miles on it and it's a 1987 turbo model with every damn factory option available. In the city, i'm only averaging 11-12 mpg and i try to stay off the turbo, too. It has been sitting for quite a while with old gas, about 4 years since it has really been driven, but was driven to a local dealer in late '05 for all the service checkups and fluid changes. my question is if i should replace the plugs, and maybe the injectors too? i'll shoot for the K&N FIPK next week, that should help, and then the exhaust too. What is the model # on the plugs?
Thanks Cody
__________________
 '87 Z31 Turbo- JDM FMIC, Flexalite ultrathins, 2.5" pipe w/ no muffler, mbc @ 9psi, HKS SSQV BOV
|
|
#2
02-13-2006, 11:06 PM
|
|||
|
|||
|
Re: poor fuel economy.... problems?
also, will doing the intake and exhaust lessen the boost lag? the turbo doesn't seem to spool up intil 2700 rpms or so.....
__________________
'87 Z31 Turbo- JDM FMIC, Flexalite ultrathins, 2.5" pipe w/ no muffler, mbc @ 9psi, HKS SSQV BOV
|
|
#3
02-13-2006, 11:40 PM
|
||||
|
||||
|
Re: poor fuel economy.... problems?
yes, definitely DEFINITELY change the plugs... might want to test the wires and take a look at the cap/rotor as well... change your fuel filter and air filter...
oh and DO NOT go with the K&N FIPK or whatever the hell it is, that is a solid RIP OFF.... get yourself a generic k&n cone filter that's got a 3" diameter inlet(outlet??) to it and you can either attatch it to your intake resonator, or get a 3" piece of ss, aluminum or whatever else that won't melt above 100ish degrees and replace the resonator as well..
__________________
 ZedEx Crew Member #61988 300zx turbo 5spd. 3" mandrel exhaust, filter, afco rad, e-fan, poly engine mounts, mbc at 8.5 psi, turboxs rfl-h bov, gutted plenum, etc. blown turbo, under construction.. gt35 coming.
|
|
#4
02-13-2006, 11:55 PM
|
|||
|
|||
|
Re: poor fuel economy.... problems?
ok then screw the FIPK. i'll just buy the filter. are there any pics online of a custom resonator setup? i'd like to make mine thin walled so it's louder....
__________________
'87 Z31 Turbo- JDM FMIC, Flexalite ultrathins, 2.5" pipe w/ no muffler, mbc @ 9psi, HKS SSQV BOV
|
|
#5
02-14-2006, 12:09 AM
|
||||
|
||||
|
Re: poor fuel economy.... problems?
 is how i have it in my 86 and what some people have done to get rid of the resonator... 
__________________
ZedEx Crew Member #61988 300zx turbo 5spd. 3" mandrel exhaust, filter, afco rad, e-fan, poly engine mounts, mbc at 8.5 psi, turboxs rfl-h bov, gutted plenum, etc. blown turbo, under construction.. gt35 coming.
|
|
|
POST REPLY TO THIS THREAD |
 |
|
|
