The Subaru Surgery #9 | Improving Reliability Q & A

[@ericn7698]

Standard plugs for my JDM v7 EJ207 (bugeye STi) are PFR7G’s. Great livestream! 👍

[@racedynamix]

Cool. Great info 🙏

[@danieldanda2443]

G's are for Coil on Plug, B's are for cable on plug for turbo models.

[@douglang4615]

Morning , we have late loadshedding this whole week, hopefully we get a better schedule next week

[@racedynamix]

Hi Doug. That must be a nightmare to live with. See you soon 👍

[@douglang4615]

@@racedynamix definitely not easy . The weeks that we have in the whole evening . Just cancels out life . Diesel or petrol for generators becomes too expensive to run 6 hrs a nite . Or even 4 hrs . And our laws say they have to turn off at 10 So it's a challenge.

[@michaelkazi]

Shoutout to BBR@37:55

[@racedynamix]

Send it to the moon 😂

[@markarlie7644]

Apologises I was late tonight did not see AOs was already asked. Just re watched it back !

[@racedynamix]

No worries mate 👍

[@phemz172reallife7]

Hello Duncan I've got a stock wrx blobeye and doing a 6 speed sti swap and I would like to get the most power out the engine but I would like it to be reliable power. I would like about 370bhp is that safe power?

[@PaulOakleyWrx]

I got a 2010 2.5 wrx, its my 5th impreza and 1st 1 to give us problems, running fine now, was going for aos, but the mechanic i use has told me its a absolute waste of time and money until running 350bhp or more

[@racedynamix]

I will be doing a full in depth vid on these soon 👍

[@LunarTL-xu3nv]

Sorry for unrelated question, but can you comment on this "boxer shake" at idle that people talk about. Do all H4-s really vibrate/shake noticeably at idle? Personally I have not come across a shaky Subaru (other than my own, which I think might have an issue).

[@jeff666p]

Mine also shakes at idle

[@racedynamix]

Are you talking about EJ engines? Because of the horizontal set up, there is always some small movement but excessive shake can be valve seat related or engine mount or a fueling issue.

[@711liljay]

I had my car mapped by yourself many years ago. We agreed for me to go away and put some miles on the car as engine was fresh and my old fuel pump and coils showed signs of tiring. It made 269 I think on 1 bar boost. My question is do I need to return car to you for another session to turn boost up or can I do myself? Car still running td05. I've only changed exhaust manifold from equal length to unequal after you advised and obviously done new Walbro pump and newage coil conversion. Not quite put the miles on it I want yet but I don't like leaving things half done

[@racedynamix]

Hi.. Yeah it will need to come back for adjustment as turning the boost up will go to cells in the map that haven't been set up. Also changing the headers changes a lot of how the combustion happens and Afr

[@PaulOakleyWrx]

Glad you said the same on aos Duncan... street car, not worth it, thats both you and my mechanic

[@racedynamix]

High tuned street car I think it's a good idea or worth it money wise. Never a bad idea though 👍

[@marvinvisser5039]

@@racedynamix My Forester STI had allot of blowby and some smoke after tuning (1.2 bar boost), and also before some oil in the intercooler. But after the AOS completely solved it. Also ran the car on track so was definitely not a bad idea.

[@racedynamix]

@@marvinvisser5039 👌👌

[@PaulOakleyWrx]

I have the cylinder 4 cooling mod for my 2010 2.5 wrx, unsure if to fit or not

[@racedynamix]

I would 👍

[@ronnieboucherthecrystalcraftsm]

i did and better in car heating and better all round engine temperature = no- 4 cyl is a dead end swamp !

[@bunsofsteeeel]

Hi Duncan sorry I missed the stream, but I have a question! my car is due its first ever cambelt change next year it’s just clocked 30k do I need to change the water pump at the same time? On older sti’s ive had I’ve always changed the water pump and the thermostat but I know the original pumps are best and damn expensive so I don’t want to do it unless I have to lol, thanks in advance

[@racedynamix]

Yeah.. Difficult one. I would personally but I can understand why some wouldn't

[@bunsofsteeeel]

@@racedynamix thanks Duncan, I’ve heard people say leave the standard one on there till it dies unless you buy another genuine one as the aftermarket ones don’t last

[@racedynamix]

@@bunsofsteeeel I wouldn't personally. For the sake of an extra £80 or so 👍

[@bunsofsteeeel]

@@racedynamix thanks Duncan I will take that advice

[@russellbarker746]

Q I have 2003 WRX I have changed turbo inlet pipe from plastic to silicone because plastic one split do I need a tune thanks

[@racedynamix]

If it is just the pipe that is different it shouldn't need a retune if it was okay before.. But would be worth checking Afr and for detonation just in case

[@drummondpringle4045]

Hi Duncan I have Foz SG9FOZ 06. Cani buy a new jdm EJ 2.5. Short motor. Considering forge. Thanks

[@racedynamix]

The jdm short motor is actually 2.0 litre. There is a ej257 RA version which is stronger than the std ej257 in yours (and mine). This is available in the UK 👍

[@drummondpringle4045]

@@racedynamix would my heads ect fit. In your opinion is this better than forging mine. Any idea of cost. Finally where would I order it Thanks Duncan really appreciate you taking the time

[@racedynamix]

@@drummondpringle4045 the last one I built up was about £2200 from ICP 👍 Went into a foz sti SG9 👌

[@drummondpringle4045]

@@racedynamix hi sorry Duncan but will my heads ect fit

[@racedynamix]

@@drummondpringle4045 yes 👍