 Performance ECU?, ST205 |
 Apr 29, 2011 - 5:37 PM
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Enthusiast  Joined Dec 7, '10 Currently Offline Reputation: 1 (100%)  |
Darn factory ECU won't let me change anything without blocking everything...I want to install a boost controller in the future...I guess I'll have to mod the ECU too. Anyone know what would be my options for this kind of mod?
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May 1, 2011 - 1:14 AM
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 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
You don't need to touch the ECU to lower or raise the boost.
You disconnect the 2nd actuator hose and block it off at the engine and at the actuator, then you connect your boost controller between the boost source and the actuator. Never install SAFC on a 3S-GTE, adjustments over just a couple % will make things worse for the factory ECU. It's the worst way to adjust Air/Fuel in a turbocharged application as it does nothing more than fooling the ECU into thinking it's at a different different load point than it really is. This means fuelling changes don't come without ignition changes, usually for the worst. Eg correcting a rich condition may also advance ignition (leaning+advancement can bring on detonation), while correcting a lean condition may retard ignition (richening+retardation will reduce performance). The wastegate is factory sprung to 10psi, The TVSV bleeds off enough air so that up to 14psi will take for the actuator to see 10psi. -------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
Posts in this topic
TheChildOfTheSea Performance ECU? Apr 29, 2011 - 5:37 PM
soulshadow AFC,
or here try this, I got their wideband o2 s... Apr 29, 2011 - 6:15 PM delusionz And factory ECU is mapped to ~17psi, 18psi brings ... May 1, 2011 - 1:21 AM TheChildOfTheSea I see...so what would you suggest? May 1, 2011 - 1:42 AM delusionz Boost controllers? Depending on your budget at the... May 1, 2011 - 5:47 AM TheChildOfTheSea Ok! and let's say I buy one of those, I ha... May 1, 2011 - 11:07 AM delusionz Yeah, or drop down to 3rd gear on the highway and ... May 1, 2011 - 3:04 PM TheChildOfTheSea Aye I'll do this Thanks for your precious inf... May 1, 2011 - 6:50 PM TheChildOfTheSea Oh another thing, the BC won't mess up with th... May 1, 2011 - 6:58 PM delusionz nah it's sweet, if it's a programmable one... May 1, 2011 - 7:53 PM TheChildOfTheSea Ok! I get it
Right now, I'm at 13psi on 1... May 1, 2011 - 8:23 PM delusionz Well, you may not even reach 17 in 1st, it doesn... May 1, 2011 - 11:15 PM TheChildOfTheSea ALright thanks! and do I need Dyno to tune it ... May 1, 2011 - 11:54 PM delusionz Nah just 3rd gear on the road, get someone to do i... May 2, 2011 - 1:05 AM TheChildOfTheSea you make it sound easy haha May 2, 2011 - 1:46 AM
TheChildOfTheSea Ah another thing...where should I put the BC modul... May 2, 2011 - 2:10 AM |
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