-Jo

hey so, its been a while but ive done a boost leak test and it was losing alot of pressure way too quick, mainly bov flange and a few small leaks which tightening some clamps sorted, and welding on a new flange results in no leaks. finally got around to getting some BKR7E's and chucking them in. honestly seems to have solved the majority of the issue, ive done about 300kms since and when at operating temp theres no missfire and it runs how it should. HOWEVER if its not warmed up itll still missfire at 4.5k and limits revs, which really doesnt bother me that much because i dont thrash my car when cold but still rather sort it, any ideas? ecu issue?, cold start valve? appreciate all the help so far, and actually enjoying learning more about the car...how deep does the rabbit hole go..

thanks guys, il look into a way to test the bov for leaks, how much is a stock bov worth?

connected the vac line up and she revs out good sounds like its leaking boost pretty bad tho, hopefully not from the bov itself, ive ordered a new bov flange to weld on as old tuner mentioned the flange was a bit warped, and will leak test ic piping. the bov is a bit to loud and high pitched for me, so might just block the line how it was and sort it all out when the flange arrives and boost leaks are sorted

yeah gave the afm a good clean today, and the injectors were recently flow tested, so they should be allgood. the car misfired like balls today, but last few times i drove it, it was sweet as, and the zorst likes to pop a bit now and then when throttling off, dunno what to make of it ay idk how i didnt pay attention to this before, but noticed today the vacuum line to the bov from intake mani is blocked shut, id rather not run flutter (sounds nice tho) because dont neo turbos have nylon compressor wheels, not sure if they like it too much. im not sure if im way off here but.. if the cars been tuned how is it now, if i reattach the vacuum hose will it cause issues? but then if its running rich itll run a bit better?

Yea the pink sticker afm,

drove it for a change midday in the hot sun, usually i go for a drive at night, seems when its hot out the car revs all the way to redline, althrough its not a smooth pull and feels a bit flat at 3k-5k rpm, but pulls good after that does the change in air density from hot/cold really cause issues like this?

took it for a drive again today, boosts like shit, may shift my focus towards boost leaks, have included a small vid of a 2nd gear pull at wide open throttle. it should be accelerating much faster than this... smoldickRb.mp4

alright i will pick up a timing light tomorrow, and do more research into how to use it and whatnot cheers bro

now im at the point of checking cas, but im very hesitant to pull it off, incase i dont put it back on perfectly and make my situation worse... maybe ill leave that for the tuner to fiddle with if he needs to.. forgot to mention when the misfiring happens, peak boost reads 12psi

hey atm my plug gap is at 0.7, im just about to go and clean and re gap them to 0.8, and i will check the cas as suggested. i havnt taken it to the tuners yet, the car was tuned at cdm in tauranga, but ive heard some not so good things about them and theyre far away, i was highly recommended to switch to advanced tuning at hampton downs, i will be taking it to them when they get back from christmas break. also car feels like its hesitant when WOT thanks for dropping knowledge on me

will pulling out coils 1 by 1 while it idles, yeild results, as car runs smooth untill 4500rpm and idles nicely

so had no issues with misfiring yesterday.. but its bloody back misfires at 4.5k rpm then starts to climb revs again ( i always button off when it misfires, try to treat my car with tlc) , even with new spark plugs and ive still got spitfires in them can someone confirm for me that the only other thing it could be is either boost leak or cas? just love owning and rb so far...

yea im surprised it had launch control, previous owner mentioned nothing of it, wouldve thought he'd use that as another selling point. but sorry for wasting your time man, if i had more experience i would have known it was coil packs, but new to rb's, thankfully its something simple like that. should this thread be deleted? as there are already plenty of threads very similar to this

borrowed some spitfire coils from a mate and now my car runs mint!! YUSSS thanks heaps for all your help guys/girls if theres one thing ill never forget its this saying hahah

hey so might have found the reason why it limits in neutral (or more accurately while not moving), the tuner said it has launch control, tuned into the nistune ecu, set to like 4500rpm, so what u see in the video may be that. ill be borrowing a mates set of spitfires from his rb25/30 tomorrow night or the day after and will chuck them in and see if it is rooted coils. i was also recommended an awesome website that sells pretty much everything jdm, with really good prices to match. www.rhdjapan.com anyone brought anything from these guys, if not at least check out the website and let me know what u think.