Mods: what can I do until I need a PFC?
10-30-09, 09:05 AM
#1
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Mods: what can I do until I need a PFC?
I have 1994 RX7 base DD
HKS BOV older style
Custom 3 inch intake tubes and filters
Air Pump unplugged
Silicone vac lines
AST tank
Radiator
Down pipe 3 in
Highflow cat/mid pipe 3in
Muffler 2 1/2 inch
EGT, Temp,Boost Guage
Greddy timer-inop
Runs 10.5-11psi
I want to install a greddy ls fmic.
Can I install and run it with current mods safely?
What mods can I do before I need a PFC?
I tried researching but no luck ...maybe I didnt type right search critirea.
Thanks
HKS BOV older style
Custom 3 inch intake tubes and filters
Air Pump unplugged
Silicone vac lines
AST tank
Radiator
Down pipe 3 in
Highflow cat/mid pipe 3in
Muffler 2 1/2 inch
EGT, Temp,Boost Guage
Greddy timer-inop
Runs 10.5-11psi
I want to install a greddy ls fmic.
Can I install and run it with current mods safely?
What mods can I do before I need a PFC?
I tried researching but no luck ...maybe I didnt type right search critirea.
Thanks
10-30-09, 09:10 AM
#3
Alot of us will tell you an PFC should be your 1st mod. There is a ton of info on this subject, I know you said you did search, but I mean this thing has been discussed to death. Keep your boost at 10psi, and you should be ok, but as of right now I would strongly suggest getting an ECU and a tune.
10-30-09, 09:19 AM
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i no i should get one but just bought the car so not have much money to play with yet. I want to do intercooler then down the road pfc...just wasnt sure if it was safe. I been reading about what the pfc can do just wasnt sure what i could before getting one. thanks for replies.
would you recommend a boost controler? or just to keep eye on gauges?
would you recommend a boost controler? or just to keep eye on gauges?
10-30-09, 09:23 AM
#5
Get a boost controller if you want, but you cannot turn down boost with a boost controller. Boost level mininum is set by the wastegate spring. Ours will open the gate at about 7psi, allowed to go to 10 by boost control solenoids and actuators. If it starts going above that due to modifications, it means the wastegate can no longer flow the amount needed to bypass the exhaust, and you will need to port the wastegate.
10-30-09, 09:50 AM
#7
Read the FAQ stickied in this forum. Its there.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/
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11-02-09, 03:37 PM
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were would you recommend buying one from...
found:
http://www.rotorsportsracing.com/per...engine_mgt.htm
http://www.srmotorsports.com/sr93ecu.html
http://www.rx7store.net/product_p/power%20fc.htm
http://www.vividracing.com/catalog/a...5-p-63869.html
or EBAY
found:
http://www.rotorsportsracing.com/per...engine_mgt.htm
http://www.srmotorsports.com/sr93ecu.html
http://www.rx7store.net/product_p/power%20fc.htm
http://www.vividracing.com/catalog/a...5-p-63869.html
or EBAY
11-02-09, 10:06 PM
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they come up for sale weekly.
a warranty on a PFC is useless. it's like $50 IF something goes wrong to get it fixed. Just follow the directions and everything will be fine.
a warranty on a PFC is useless. it's like $50 IF something goes wrong to get it fixed. Just follow the directions and everything will be fine.
11-03-09, 02:29 PM
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Get a boost controller if you want, but you cannot turn down boost with a boost controller. Boost level mininum is set by the wastegate spring. Ours will open the gate at about 7psi, allowed to go to 10 by boost control solenoids and actuators. If it starts going above that due to modifications, it means the wastegate can no longer flow the amount needed to bypass the exhaust, and you will need to port the wastegate.
some say i will be fine with a boost controller other say pfc
if i get bc and install fmic what should i set psi at? if I go with manual one do I need one of two? BTW I am still seq. turbo.
will i need a boost control even if i get pfc?
pfc would fix fuel so would not need to lower boost...right...i no it does not mean that i can run high boost since i dont have supporting mods...
sorry for all the ?s i so
been reading all day still 
11-04-09, 09:42 AM
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I want to install fmic with current mods
in order to run safe-no fuel cut and keep stock boost pattern I would need:
PFC and two manual boost controller?
or
do I need just boost controllers?
Do I need two or one BC? write ups i see have two? i am still seq.
in order to run safe-no fuel cut and keep stock boost pattern I would need:
PFC and two manual boost controller?
or
do I need just boost controllers?
Do I need two or one BC? write ups i see have two? i am still seq.
11-04-09, 10:53 AM
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so tuned for my mods and MBC should be what i need right?
i need to fig out if i need 1 or 2 mbc...as stated aboe see two in write ups but dunno if that due to non seq or stock set up
11-04-09, 11:36 AM
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okay
'so get pfc w/o commander and use base map untill can get tuned
with all mods in sig plus fmic and mbc and run 7psi and be okay...
sound good?
still need to no 1 or 2 mbc?
'so get pfc w/o commander and use base map untill can get tuned
with all mods in sig plus fmic and mbc and run 7psi and be okay...
sound good?
still need to no 1 or 2 mbc?
11-04-09, 12:02 PM
#19
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get the PFC, don't **** with a boost controller until you can add more fuel i.e. pump, rewire, and injectors. Get BOTH the commander and the datalogit, the commander is a pain to tune with, I really only use mine for MINOR adjustments and as another gauge to monitor intake temp, coolant temp, boost, and knock. Spend the 1200 dollars on a new one (which includes all three components) and take it to a good tuner, which in your area you have a few options. And just because I recommend them to everyone talk to rotary performance to buy your PFC, http://www.rx7.com
11-04-09, 12:35 PM
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I dont plan on tuning myself or doing any major mods anytime soon so used is fine with me. I wouldnt be raising the boost i would be limiting it to 10 max
11-04-09, 02:01 PM
#22
These guys are reasonably close to you - http://www.pfsupercars.com/index.htm
You can probably buy the PFC from them and even have them tune or install it if desired. Some people find the install tricky. Especially those that can't read instructions.
Commanders are useful if you are buying used since you never really know if the map has been changed. The commander will allow you to re-initialize. Of course you could just buy the Datalogit software and learn to do it yourself which can be intimidating since the risk of mistakes can be costly. Or you could pay to have it professionally installed at PFS and have them verify that the map is appropriate for you mods or have them re-load the original Apexi map or something similar.
You can probably buy the PFC from them and even have them tune or install it if desired. Some people find the install tricky. Especially those that can't read instructions.
Commanders are useful if you are buying used since you never really know if the map has been changed. The commander will allow you to re-initialize. Of course you could just buy the Datalogit software and learn to do it yourself which can be intimidating since the risk of mistakes can be costly. Or you could pay to have it professionally installed at PFS and have them verify that the map is appropriate for you mods or have them re-load the original Apexi map or something similar.
