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boost

  1. J0R04N

    Stock boost gauge accuracy????

    I have recently been setting up my boost controller and noticed the massive difference to what the boost controller says and what my boost gauge says :annoyed:. The EVC and the boost gauge both run off the same boost line so in scientific terms the test is equal. However there seems to be a...
  2. A

    Spec R Full Throttle Hesitancy/Stuttering

    No end of troubles with coilpacks, bought brand new set, [Shameless plug to Apex Performance] fitted them and all was well. Car has now developed a hesitation at about 3500rpm at full throttle. Part throttles fine.? To try and describe it better its an almost strangled/ clogging effect lift...
  3. J0R04N

    HKS EVC-S settings??

    I need some advice as to what to set my boost controller too? I have not got the manual do havnt a clue what to set it too?? Any help would be greatly appreciated :) have not yet had my car mapped so I don't want it boosting too high. I believe the boost is set in % ???
  4. J0R04N

    What boost to run with my modifications?????

    After some advice onto what boost I should be setting my boost controller too? Just brought a HKS EVC-S so looking to set the correct boost for my mods (safely) Current engine mods; Autobahn 88 intercooler (New Type) Koyo N Flow radiator Apex Twin Fan Set And Shroud Mocal 19 row oil cooler HKS...
  5. dave_t

    WTB: Apexi Boost Gauge Wanted

    After an Apexi Boost Gauge (to fit in oem position), to accompany my Apexi AVC-R, Turbo Timer & Power FC Controller in the cabin :thumbs: pm me if you have one
  6. S

    boost hose

    I been driving for a while now without realising that i got a boost leak. I felt bit of power loss so i went to check around, I found that my hose from the boost gauge keeps ripping. Ive put it back on and it keeps constantly ripping off? this happens when i go hard on it. theres always a tear...
  7. 2fst4u

    Boost controlled by ECU. Yes or no?

    As my wishlist grows and grows, one thing I have on the list is an ECU and tune. Right now I'm running a turbosmart boost tee (Which is absolute crap. I have it on minimum setting and when I put my foot down I boost into a dangerously high 1.4 ish Bar. Not good). And have been looking out for a...
  8. J0R04N

    Boost controller. £350 budget??????

    Looking to buy a boost controller next. Looking at the gizmos and the HKS EVC-S. any others I should look at for that kind of money??
  9. Jay-pan

    Jay-pan's HKS powered S15

    Well been lurking know a few members of here, so its about time I did some show and tell. My names Josh and I work at Muller Dairy as an engineer (yes free yogurts!!) now owned Jap cars for the last 3years started with a Glanza V then a Colt CZT running 240bhp now a S15. Anyways heres the spec...
  10. A

    complete loss of boost while driving

    Hello S15 owners i have a problem where my boost gauge will show boost for some time then completely drop off and show -7. I asked around and was advised it may be the spring in the wastegate actuator. As such i replaced this and the problems persists. I now have a feeling my turbo ( T25 bb) is...
  11. FaberNZ.blaaack-S15

    what's the go with a +t

    Hey guys my s15's a sr20de+t and I don't know what I can do and what I can't do? since I don't want to stuff my motor and all i'm wondering is it safe or not to have a boost tap and put the boost up to 12ish psi. The previous owner said it was tuned to 6 psi and he was certain but some reason it...
  12. K

    what fuel pressure and boost do i set my car to

    help i have front mount fuel pressure reg boost controler and exhaust system what do i need next sorry if this sounds stupid
  13. Jay-pan

    Further Tuning advice

    Hi guys, just been to a rolling road to have the car checked out to see if its running okay. When on the rollers it produced 180hp/160ftlb at 0.7bar of boost. Which to me seems very low but was told theres a 20-30% transmission loss also had a boost leak around the intake manifold. Also was...
  14. FaberNZ.blaaack-S15

    what mods for upping boost?

    Hey all I want to know what I will need to do so that it's safe for me to increase my boost. Not sure on what mods will need to be done so its safe and damage the engine etc
  15. spoonman

    On boost compressor surge

    the other night my car started to make compressor surge whilst boosting, instead of a nice clean boost noise it was fluttering rather noticeably, exactly like the nose in the youtube clip below, all be it this car i would say is running way more boost then 1bar just before this, i have put the...
  16. J

    misfiring?

    spark plugs have been changed and ive checked the coil packs. if i run it at 0.8bar is runs fine. if i put it to 1.1bar it splutters on full boost sometimes. what could cause this :(
  17. V

    Why is my S15 boosting high?

    Hi guys, I have recently got an S15 and it's boosting above stock. I had it on a dyno yesterday and it showed about 1.1bar (17psi). There is no boost controller on the car so I'm trying to find out how the boost has been turned up. The guy at RDT said he didn't know the S15 engine perfectly...
  18. J

    Ecu light and boosting issue?

    hi, sometimes on full boost 1.1bar the Ecu light flashes up and cuts my boost. whilst doing that it backfires alot when not even hitting limiter. then when i come to a stop it just wants to turn off? i dont understand what it can be to only do it sometimes. possible faulty afm maybe?
  19. dave_t

    S15 Spark Plug Gaps - Stock Boost

    Sorry if there's an existing thread on this, but i haven't found anything definitive on here regards spark plug gaps. Wanting to make sure i gap my new NGK BKR7EIX Iridum plugs to the correct size. Running stock boost for now, but will be raising shortly (14psi i think) when i fit a boost...
  20. J

    strange problemmm...

    right, my car seems to have a mind of its own. sometimes it works awesome but other times it just doesnt want to run. sometimes when i come onto to boost my exhaust back fires really loud then i lose all power when in boost, when i finally come to a stand still the engine stalls. this morning...
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