Does a JDM Subaru Impreza STi NEED tuning ?
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- Опубліковано 2 сер 2024
- Lots of discussions around whether your JDM import Subaru Impreza STi actually needs mapping for UK fuel. Lots of uninformed opinions really, so I shine a light on it with one freshly imported Impreza Hawkeye STi
Japanese fuel is better quality than UK fuel and Imprezas need the best quality fuel.. So is the std map safe? Does it actually need to be mapped to run uk fuel safely?
Enjoy ... Lots more videos coming.
website: www.racedynamix.com
booking: racedynamix.as.me
#subaruimprezawrx #subaruimprezasti #subaruremapping #subaru #subarulife #racedynamix #duncangraham #remap #subaruremap - Авто та транспорт
Another great video 👍👍
Thanks again Thomas 🙏
Absolutely no expert on Scoobs, but have been around a few for around getting on 15 years now and have never heard talk of greys 'maybe' 😉 needing remapping for UK fuel.
Thanks Duncan - everyday's a school day. Looking forward to the next lesson 😊
This was full on JDM market car, not a grey import such as Cyprus or Malta. Very different ignition maps on the jdm because of the super quality of fuel there
Nice content
Thanks a lot 🙏
She got some potential. 👍
Loving these videos, would be curious to hear a mappers take on dump valves, VTA vs Recirc on a Subaru and IF VTA cause issues unmapped or if changed.
Haha.. Just getting the bits together today for that video. Are you spying on me Stu? 🤣😉
@@racedynamix haha, no mate, had a lad over today thats just spent £11.5k on a Blob STI and it had a £30 ebay "anodised" dump valve on it, so I started explaining the benefits of putting it in the bin and fitting a recirc.
👌👍
I'm currently building a UK 02 plate WRX and have a Gen TACTRIX cable. Would be interested in some info regarding operating system and setup if you plan any more videos on this
I will cover that for you 👍👍
My '97 wrx has never been mapped for UK fuel.. the previous owner (only UK owner before me) managed about 120k on the standard engine before it eventually started knocking and needed a full rebuild... Still didn't get it mapped afterwards and then I've bought it... and 6 years later I've still not got it mapped either 😂🙈 but its not driven much, or hard, should really book it in as got a ESL previously mapped by yourself waiting to go on 🙈
Some are lucky.. Some aren't but knowing and giving a chance to fix before problems is a good thing. The earlier cars are less on the edge than newage onwards tbh. Happy to help out and check it out with you and fit/map the Esl. Thanks for the comment 🙏
@@racedynamix will definitely need to book it in with you but still trying to figure out a bit of a throttle issue. Feels like it's on a switch below 1000rpm so makes plodding along in traffic a bit jumpy. Tried cleaning and swapping idle control valve to no avail. Unless that won't make a difference to mapping but didn't want to risk booking in and you finding something stupid resulting in you not being able to work your magic.
As someone who has a Hawkeye WRX STI coming on the boat from Japan as we speak, this is really useful.
I'm having the importer take it to be mapped for UK fuel for peace of mind. What sort of power would you expect to see out of a 2006 JDM wrx sti with an STI panel filter, aftermarket backbox, and uprated fuel pump?
At this stage is there any power benefit to throwing an uprated fuel pump on? Or will there be a bottleneck from the standard exhaust setup? Down the road i'd like to go turbo back exhaust and some other mods, so it's obviously going to be needed as a future supporting mod...but figure there's no harm in throwing these bits on for the initial UK fuel map and running the car like that whilst my wallet recovers.
Great vid!
Thanks for watching.. And the comment/question.. It will probably make similar (maybe a tad more because of the back box) if optimised for UK fuel but most often the importer will have a mapper take some ignition timing out and call it mapped for UK fuel even without actually testing it.
If it were my car I would replace the fuel pump, they are 16 yrs old now and very critical so the 70 pounds would be well spent.
Who is the importer?
@racedynamix Torque GT, and it'll be going to Enginetuner in Plymouth so should be in good hands.
Thanks for your reply!
@racedynamix Quick follow-up question- worth fitting a 3 port boost solenoid at this stage?
It may help hold onto a bit more boost at the top end which might gain a couple of bhp but wouldn't be needed for boost control, the std 2 port does a good job on the jdm
@racedynamix so, it was mapped last week.
Made 308bhp with sti panel filter, uprated fuel pump, 5zigen backbox and a 3 port boost solenoid.
I miss my little Japanese friend talking to me on start up 😕
Lol.. Me too😊
I've seen a 2015 Sti Jdm 2.0 for sale in Manchester. My question is would the 2.0 sti be better than 2.5 sti as I've heard that the 2.5 is a ticking time bomb
Yes 👍👍😁
@racedynamix Brilliant, so wouldn't really need a go forged for around 400bhp
@@Nicks_Sti yep.. Std engine on those is strong enough for that assuming it is maintained well 👍
@racedynamix Cheers for the info pal, if I get it I'll give you a shout if I do any mods to it. 👍
Hi what would that cost as I have a jdm and looking at having mine done
Hi mate. Send me a message or call me on 07540 185754 and we can chat about the options.
What octane uk fuel is in it?
UK 99 Ron fuel. Shell Vpower 👍
Hello
Pls could you show us where in the maps u fill in ,
For fuel
And timing .
Coming in the video that goes live today 👍
@@racedynamix yay.. can't wait . Really enjoy the way u explain and teach .
@@racedynamix nervous to send u my map for a look see.
I know u hate SD tunes .
@@douglang4615 I don't hate SD tunes. But when you are learning or dont know what you are doing they overcomplicate things. Better to get to grips with std maf based map, what does what and why first then use that knowledge to apply to the sd tune.
I have a jdm legacy gt twinscroll making a little bit less then the STI, do you still think you need a remap for these?
Yeah the legacy GT is very high compression and borderline for UK assuming all working as it should be... Be worth checking all is good and happy imo 👍
@RaceDynamix Subaru Tuning Yeah definitely need to get it looked at mate, might come to you for a map after I put a downpipe on it to try and get some more power while I'm at it.
If low octanefuel is used such as 95RON, would the knock sensor read the knock and make ecu to retard the ignition timing? In my country we do not have premium unleaded, but heaps of guys are getting jdm imports and running on local pump gas rated at 95RON. Haven't heard of any issues yet.
It's like relying on the driving instructor to brake for you.. I wouldn't want to rely on it or the ecu to hear the knock and retard the ignition
@@racedynamix Thanks mate. I actually do want to buy one, however, I am susceptible as most have been runing on low octane. Would it be wise to buy and get it remapped to our local fuel or should I just stay away as it just could be a ticking time bomb waiting to detonate.
Can they be mapped for 95 Ron? Availability for premium can be a bit of an issue for where I am.
Hi.. Yeah they can. Obviously performance will suffer but better to do that than having big issues with detonation and dead engines 👍
@@racedynamix brilliant thank you!
@@ponchcrew1076 no problem.. Where are you based?
@@racedynamix in Cumbria, there are a few spots around that provide premium but they are often out of order when I go. I’m looking at importing a BP5 Legacy next and my priority is a safe running engine
@@ponchcrew1076 the Bp5 has a very high compression compared to other subaru engines. Tuning for 95 Ron is tricky but not impossible.. The issue is that removing the ignition timing needed to make safe on 95 can make it a little hesitant. The best cure for that is some thicker head gaskets to lower the compression and retune to add some ignition timing back in 👍