FD having some serious power issues, asking for some help
05-09-2007, 01:46 PM
#1
Senior Member
Thread Starter
Join Date: Jul 2003
Posts: 1,850
hey guys,
my friend who lives in portugal is having some serious issues with his FD. His mods are full exhaust, intake pfc ,avc-r 1bar of boost, blitz fmic, supra fuel pump, 1600 injectors and new rad. He recently got dynoed and his hp was 250
. Hes seriously bogging from 2-4k rpms to the extent of it being very noticeable. anyone have any suggestions to try? AF is 12 at idle and his boost for the dyno was 12lbs btw..
my friend who lives in portugal is having some serious issues with his FD. His mods are full exhaust, intake pfc ,avc-r 1bar of boost, blitz fmic, supra fuel pump, 1600 injectors and new rad. He recently got dynoed and his hp was 250
05-09-2007, 02:00 PM
#2
Junior Member
Join Date: Jun 2004
Location: Portugal
Posts: 10
hi guys
i'm the guy that nopistons94 is talking about
so it's like this when i 1st dyno my car i only had a few mods :
Full Exhaust (downpipe, midpipe, Blitz catback)
Pfc with base tune 11/12psi of boost
Intake
Stock Sequential Turbos
and i got 306hp (not rwhp)
And today i went to the dyno again with a few more mods
Full Exhaust
Pfc
Intake
Blitz FMIC
Fluydine Rad
1600 Injectors
Act Clutch
9.5 Flywheel
Supra Fuel pump
avc-r
Plx wideband
Avc-r is set to 1bar of boost (14.7psi)
and i only got a bit over 250hp (again not rwhp)
in the wideband i was seeing 15 or 16
and in the exhaust it was coming a huge gas smell
the dyno was done in 4th gear ... and the car from 1500rpm to 4k rpm was very slow like in the street the car is very slow till 4k rpm
both turbos are spooling ok so what could it be ?
a bad tune ?
please advice
i'm the guy that nopistons94 is talking about
so it's like this when i 1st dyno my car i only had a few mods :
Full Exhaust (downpipe, midpipe, Blitz catback)
Pfc with base tune 11/12psi of boost
Intake
Stock Sequential Turbos
and i got 306hp (not rwhp)
And today i went to the dyno again with a few more mods
Full Exhaust
Pfc
Intake
Blitz FMIC
Fluydine Rad
1600 Injectors
Act Clutch
9.5 Flywheel
Supra Fuel pump
avc-r
Plx wideband
Avc-r is set to 1bar of boost (14.7psi)
and i only got a bit over 250hp (again not rwhp)
in the wideband i was seeing 15 or 16
and in the exhaust it was coming a huge gas smell
the dyno was done in 4th gear ... and the car from 1500rpm to 4k rpm was very slow like in the street the car is very slow till 4k rpm
both turbos are spooling ok so what could it be ?
a bad tune ?
please advice
05-09-2007, 02:16 PM
#4
Senior Member
Join Date: Dec 2002
Location: fredneck MD
Posts: 4,107
did you buy the PFC new or used?
Only reason I ask is because it may be setup for a different rx7...
you need to tune regardless, so thats a good place to start. Do you have a fuel pressure regulator? More info on your fuel setup is also needed! Did you buy a fuel kit like the one keith sells at kgparts.com?
Only reason I ask is because it may be setup for a different rx7...
you need to tune regardless, so thats a good place to start. Do you have a fuel pressure regulator? More info on your fuel setup is also needed! Did you buy a fuel kit like the one keith sells at kgparts.com?
05-09-2007, 02:20 PM
#5
Junior Member
Join Date: Jun 2004
Location: Portugal
Posts: 10
i've bought all my parts brand new so the pfc was brand new also
i do have fpr
i've bought the fuel system from rx7store (Extreme Fuel System) but i think that it's the same that kgparts have ... exactly the same
oh yeah i forgot to mention that jason did a new map file for my current mods so i dont know how good is that map file... but i dyno the car with that map that jason made for me (i also have datalogit)
i do have fpr
i've bought the fuel system from rx7store (Extreme Fuel System) but i think that it's the same that kgparts have ... exactly the same
oh yeah i forgot to mention that jason did a new map file for my current mods so i dont know how good is that map file... but i dyno the car with that map that jason made for me (i also have datalogit)
05-09-2007, 03:10 PM
#6
Super Moderator
Join Date: Jan 2002
Location: New Jersey
Posts: 3,928
Originally Posted by Claudio' post='871172' date='May 9 2007, 03:00 PM
...and i only got a bit over 250hp (again not rwhp)
in the wideband i was seeing 15 or 16
and in the exhaust it was coming a huge gas smell ....
in the wideband i was seeing 15 or 16
and in the exhaust it was coming a huge gas smell ....
make sure your boostin on both primary and secondary turbos..
and id do third gear pulls instead of fourth..
05-09-2007, 06:02 PM
#9
Senior Member
Join Date: Mar 2003
Location: Disclaimer: posts made after 11AM are most likely alcohol induced. Please disregard unless very funn
Posts: 2,436
Originally Posted by Claudio' post='871178' date='May 9 2007, 03:20 PM
oh yeah i forgot to mention that jason did a new map file for my current mods so i dont know how good is that map file... but i dyno the car with that map that jason made for me
*THAT* is your problem.....