720cc injectors
mazdaspeed 3 coming soon
Joined: Jul 2001
Posts: 1,761
Likes: 0
From: Mississauga, Ontario
Originally posted by RETed
In fact, that's what the Japan guys do when they can't get an FCD...
When disconnected, the ECU defaults to a 4.x psi setting.
-Ted
In fact, that's what the Japan guys do when they can't get an FCD...
When disconnected, the ECU defaults to a 4.x psi setting.
-Ted
holley guy
Joined: Feb 2003
Posts: 898
Likes: 1
From: K.C. MO
If you disconnect the boost sensor your ignition timing will be locked at the timing for 4.x psi. So if you remove the boost sensor and then time your ignition for max advance at max boost, you won't have to worry about fuel cut or detonation (will be a little down on power on the off peak range). Just like people do with distributers.
-Marques
-Marques
Microtech Tuning!
Joined: Feb 2002
Posts: 1,828
Likes: 0
From: 626 Socal
So if I'm understanding this correctly, disconnecting your boost sensor is safer than plugging in an FCD because your timing will be locked, assuming you're not making more power than how much fuel you can provide?
I'm a little confused... lol
I'm a little confused... lol
Originally posted by mwatson184
If you disconnect the boost sensor your ignition timing will be locked at the timing for 4.x psi. So if you remove the boost sensor and then time your ignition for max advance at max boost, you won't have to worry about fuel cut or detonation (will be a little down on power on the off peak range). Just like people do with distributers.
-Marques
If you disconnect the boost sensor your ignition timing will be locked at the timing for 4.x psi. So if you remove the boost sensor and then time your ignition for max advance at max boost, you won't have to worry about fuel cut or detonation (will be a little down on power on the off peak range). Just like people do with distributers.
-Marques
Rotary Enthusiast
Joined: Nov 2003
Posts: 814
Likes: 0
From: Canada
nlc1179,
Just because you don't understand what Evil Aviator is saying doesn't mean he is wrong or being a dick.
I don't see anything he has said that in incorrect, but I'm no guru. (some say he is though...)
I agree with what most people above mentioned - don't bother with all the add on boxes, gizmoes, aka time bombs. Do it correct the first time and get a stand alone EMS. You will thank yourself later.
You can get a very good one for under $1000 which is totally flexable for basically any possible mods to your engine, make more power, and best of all SAFE!
Just because you don't understand what Evil Aviator is saying doesn't mean he is wrong or being a dick.
I don't see anything he has said that in incorrect, but I'm no guru. (some say he is though...)
I agree with what most people above mentioned - don't bother with all the add on boxes, gizmoes, aka time bombs. Do it correct the first time and get a stand alone EMS. You will thank yourself later.
You can get a very good one for under $1000 which is totally flexable for basically any possible mods to your engine, make more power, and best of all SAFE!
what 7
Joined: Feb 2002
Posts: 670
Likes: 1
From: Portage, MI
Huh? Why would you want your timing set for 4.3 PSI when even stock boost levels are running above that?
Too much timing may make extra power but it is unsafe and will blow your engine.
Who cares how much power you make if you make it for 3 whole seconds and blow your motor?
There is more to it than just fuel.
Too much timing may make extra power but it is unsafe and will blow your engine.
Who cares how much power you make if you make it for 3 whole seconds and blow your motor?
There is more to it than just fuel.
Microtech Tuning!
Joined: Feb 2002
Posts: 1,828
Likes: 0
From: 626 Socal
I was asking because I thought I read somewhere that with an FCD, your timing will go up/be advanced...?
Originally posted by Piranha
Huh? Why would you want your timing set for 4.3 PSI when even stock boost levels are running above that?
Too much timing may make extra power but it is unsafe and will blow your engine.
Who cares how much power you make if you make it for 3 whole seconds and blow your motor?
There is more to it than just fuel.
Huh? Why would you want your timing set for 4.3 PSI when even stock boost levels are running above that?
Too much timing may make extra power but it is unsafe and will blow your engine.
Who cares how much power you make if you make it for 3 whole seconds and blow your motor?
There is more to it than just fuel.
EIT
Joined: Jan 2002
Posts: 1,790
Likes: 0
From: Austin, TX
a FCD will not advance your timing, however you will soon be running to much boost for such advanced timing. The ignition timing at 12 pounds should be retarded more than at 8.6 pounds, but with the fcd the ecu can only read to fuel cut. The stock ignition timing isn't very agressive which is why it's safe to run up to 10 pounds on the stock timing provided you have fuel taken care of.
If your timing is locked at 4.3psi, then you can retard the overall timing at the distributor until it was retarded enough that it would work well in conjunction with whatever boost pressures you were running. Of course when you're not in boost, the car won't be nearly as responsive and you'll have less power when you're not WOT.
If your timing is locked at 4.3psi, then you can retard the overall timing at the distributor until it was retarded enough that it would work well in conjunction with whatever boost pressures you were running. Of course when you're not in boost, the car won't be nearly as responsive and you'll have less power when you're not WOT.
Microtech Tuning!
Joined: Feb 2002
Posts: 1,828
Likes: 0
From: 626 Socal
Ohhhh now I understand! lol Thanks!
So for most of the people running stock or hybrid turbo's with 720 secondaries, walbro, and SAFC boosting ~14 lbs, it would be a good idea to give up a little responsiveness with slightly retarded timing?
So for most of the people running stock or hybrid turbo's with 720 secondaries, walbro, and SAFC boosting ~14 lbs, it would be a good idea to give up a little responsiveness with slightly retarded timing?
Originally posted by gsracer
a FCD will not advance your timing, however you will soon be running to much boost for such advanced timing. The ignition timing at 12 pounds should be retarded more than at 8.6 pounds, but with the fcd the ecu can only read to fuel cut. The stock ignition timing isn't very agressive which is why it's safe to run up to 10 pounds on the stock timing provided you have fuel taken care of.
If your timing is locked at 4.3psi, then you can retard the overall timing at the distributor until it was retarded enough that it would work well in conjunction with whatever boost pressures you were running. Of course when you're not in boost, the car won't be nearly as responsive and you'll have less power when you're not WOT.
a FCD will not advance your timing, however you will soon be running to much boost for such advanced timing. The ignition timing at 12 pounds should be retarded more than at 8.6 pounds, but with the fcd the ecu can only read to fuel cut. The stock ignition timing isn't very agressive which is why it's safe to run up to 10 pounds on the stock timing provided you have fuel taken care of.
If your timing is locked at 4.3psi, then you can retard the overall timing at the distributor until it was retarded enough that it would work well in conjunction with whatever boost pressures you were running. Of course when you're not in boost, the car won't be nearly as responsive and you'll have less power when you're not WOT.
Thread
Thread Starter
Forum
Replies
Last Post
HalifaxFD
Canadian Forum
126
May 9, 2016 07:06 PM
