Fcd And Wastegate
03-04-2003, 02:11 PM
#1
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Join Date: Jan 2002
Location: New Jersey
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pressure sensor acquires pressure build from manifold..
this signals operation of the wastegate correct...
with an fcd installed...how is this affected...
if the actual psi is no longer accurate past a certain mark that is...
as its bein tricked by the fcd...
this signals operation of the wastegate correct...
with an fcd installed...how is this affected...
if the actual psi is no longer accurate past a certain mark that is...
as its bein tricked by the fcd...
03-04-2003, 02:17 PM
#3
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Basically the fcd tells the computer that you're still at the highest stock boost level. This way you still get the proper amount of fuel and as much boost as you want. If you are running full exh. and intake then your wastegate will open when you reach the max psi the wastegate spring can handle. Hope this helps. Hope this is right because this is basically how I understand it. Please feel free to correct me if I'm wrong.
03-04-2003, 02:56 PM
#6
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The line that goes to the wastegate is just hooked up to a nipple on the outlet of the turbo. The spring in the wastegate is set to open at a given boost pressure. The pressure sensor has notheing to do with the wastegate.
03-04-2003, 04:09 PM
#7
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Originally Posted by ILUVMY88CABRIO' date='Mar 4 2003, 12:56 PM
The line that goes to the wastegate is just hooked up to a nipple on the outlet of the turbo. The spring in the wastegate is set to open at a given boost pressure. The pressure sensor has notheing to do with the wastegate.
mike
03-04-2003, 06:24 PM
#8
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Originally Posted by 7mech' date='Mar 4 2003, 08:17 PM
This way you still get the proper amount of fuel and as much boost as you want.
I would think that more fuel is needed as boost increases...something the FCD is not capable of doing
03-04-2003, 07:25 PM
#9
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http://www.rx7club.com/forum/showthread.ph...fcd+fuel+timing
Good thread from another forum on the subject.
Good thread from another forum on the subject.
03-04-2003, 08:21 PM
#10
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unfortunately i cannot goto that forum due to religous beliefs...is this only an issue when a DP/full exhaust is installed..i might get a t2 in the near future so i;m worried about this often talked about topic of fuel cut bypassing