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#1
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Thoughts..? Stuttering on Boost!
Hey Guys
I just installed a VF28 STi turbo onto my MY99 wrx. Also installed a new exhaust as the old 3 inch was rusted out. While installing this I also put a new genuine O2 sensor. Since installing the VF28 my car stutters on boost. The idle is smooth, not erratic at all. No different to before the install but as soon as I hit boost the stuttering occurs. What are peoples thoughts..? Cheers
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MY06 STi |
#2
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Has it been tuned since the install? Be my first stab..
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06 sti |
#3
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Not tuned but I didn't think the VF28 was a huge upgrade over the TD04. Hence the MY99 ECU would relearn the new parameters.
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MY06 STi |
#4
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What sort of condition was the turbo in? Ie the bearins, fins?
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The one perkent... |
#5
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AFM is a possibility.
Computer to suit would help. I changed from a TD04 to a VF35, but changed from a MY00 WRX ECU to a V6 STi ECU.
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[COLOR=RoyalBlue][B][I]Titanium Reinforced[/I][/B] MY00 Impreza WRX | MY11 Liberty GT Premium[/COLOR] |
#6
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No play, fins undamaged. Can hear it spooling on boost.
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MY06 STi |
#7
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Might have to get my V5 STi ecu installed aswell but will try a few other things first. Like AFM...
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MY06 STi |
#8
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Quote:
I had same done to my MY00 thanks to Maximum Motorsport. VF24 turbo, swapped ECU to V6 STI ECU (couple of wires to be swapped over). Goes like a mofo! |
#9
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In my previous wrx (97) it did this, would cough on boost had me worried might be map sensor.
Got in there and had a look, gave it a clean... Good as new. Might not be this, however was a simple fix for a similar issue so I thought is throw this in here. using the Perth-WRX mobile app
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MY00/01 Subaru midnight blue pearl WRX |
#10
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Too much boost? Injectors not keeping up?
using the Perth-WRX mobile app
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1997 White GC8 WRX - 3" TBE, Apexi pod, V6 STI TMIC, Kei Office coilovers, Whiteline F strut brace, GReddy Profec B Spec II, 2004 F&R brakes.. |
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boost, stuttering, thoughts |
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