3 port boost solenoid
23 December 2011, 02:35 PM
#1
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3 port boost solenoid
my car is a 99 turbo 2000 its currently got a 2 port boost solenoid fitted to it but was told when i get a remap will need a 3 port on will a standard 3 port boost solenoid do the job of a sti i think.also where does the top port go to as mine only has two on the bottom
23 December 2011, 03:05 PM
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that is a good guide cheers mate so a standard 3 port will do the job then where abouts is the turbo outlet nipple in that top pipe then as the bottom 2 go to the same place on 3 port dont
23 December 2011, 05:58 PM
#4
The 3-port's top port connects to the bleed nipple on the outlet spout of the turbo compressor housing.
The 3-port's middle port goes to the turbo's wastegate actuator housing's nipple.
The 3-port's bottom port goes to the bleed return port on the large turbo intake pipe (under the inlet manifold) - or simply left VTA. (If left VTA, then you need to plug that intake port with something suitable, like a screw.)
This (very) rough
diagram might help you visualise it better:-
The 3-port's middle port goes to the turbo's wastegate actuator housing's nipple.
The 3-port's bottom port goes to the bleed return port on the large turbo intake pipe (under the inlet manifold) - or simply left VTA. (If left VTA, then you need to plug that intake port with something suitable, like a screw.)
This (very) rough
diagram might help you visualise it better:-Last edited by joz8968; 23 December 2011 at 06:12 PM.
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01 November 2014, 08:16 PM
#8
Cripes, this thread is a blast from the past. 
3-port is supposed to control boost better. Don't really know what the reason is though.
Actually, it was the first MY93-96 "phase 1" cars which were fitted with the 3-port. Then from MY97, all are fitted with a 2-port, AFAIK.
But at OEM boost pressures at least, the 2-port works just fine, anyway.
3-port is supposed to control boost better. Don't really know what the reason is though.
Actually, it was the first MY93-96 "phase 1" cars which were fitted with the 3-port. Then from MY97, all are fitted with a 2-port, AFAIK.
But at OEM boost pressures at least, the 2-port works just fine, anyway.
Last edited by joz8968; 01 November 2014 at 08:23 PM.
01 October 2016, 08:53 PM
#14
Tried it today... no remap, stock MY99 ECU: spikes at 1.16bar then lowers, I can't see how much I can only see the peak on freessm, but I feel it looses power.
No "pill" on the lines just followed joz8968's layout. I think with a proper remap this will probably be able to maintain the 1.1ish bar rill redline.
No "pill" on the lines just followed joz8968's layout. I think with a proper remap this will probably be able to maintain the 1.1ish bar rill redline.
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