Jump to content
SAU Community

Wrong Turbo And Knocking

fozzysrb25

By fozzysrb25,
in General Maintenance

 Share

Recommended Posts

fozzysrb25 Rookie

fozzysrb25

Posted
Posted

hi all,

i got a new turbo put in (or so i thought) and fuel pump, injectors, afm and ecu + tune

a few days after a clamp blew off on my intercooler piping (where the old bov used to be) and my spark plugs ended up burning out. i called mechanic and he told me to change the spark plugs (which i did and it worked) i noticed my idle sitting a bit high. i went to reconnect my boost gauge and boost controller since they blew off as well and noticed the mechanic (i ordered the turbo through him as well) had left the stock turbo on :/. been meaning to call him and ask him wtf is going on since i don't want to be jipped out of a garrett and now it's starting to cause engine knock.

does anyone have any good advice on how i could go about this situation? i got it on the invoice that i had paid for a garrett and i can't tell what would be causing the knocking and if it could be related to anything he's done? any help much appreciated thanks

Link to comment
https://www.sau.com.au/forums/topic/430411-wrong-turbo-and-knocking/
Share on other sites
SargeRX8 Grand Master

SargeRX8

Posted
Posted

Knocking is thanks to a shit tune. If it looks like a stocker its not a garrett unless he fitted a high flow if thats what you asked for. This guy sounds dodgey and I'd be going back there maybe with a mate or two and dont ask. You tell. You ask and they will put it over you. You go in there say mate got some problems first things first this is a stock turbo I payed you for an aftermarket and a tune and what you gave me was stock and the engine is pinging.

But things is if you asked for a garrett turbo did you pay for a new dump? Garretts have a different bolt pattern. What you can do is pull the intake pipe and look into the turbo. You should be able to tell if its stock or a highflow. if you so happen to have an r33 feel the comp wheel and it should feel like plastic if its a stocker.

fozzysrb25 Rookie

fozzysrb25

Posted
  • Author
Posted

it's a small turbo with nissan on it, i ordered a gtx3071 and i compared it to the size of my friends gt3076 and it's half the size. the stock turbo was hitting 18 psi my phone cameras broken i got one photo i'll try get some more when my friend comes over

http://i.imgur.com/6M8a4vk.jpg

i asked him for a garrett and he recommended the gtx3071 so i said i'll go with that, on the receipt he put stealth garrett gtx3071 kit.

he couldn't get any further than 330hp and this is the list of parts i had gotten

gtx3071

sard 740cc injectors

power fc

3" dump pipe

300zx afm

i can tell the afm and power fc is in and my friend told me that the spooling sound will be caused by the dump pipe

also do you guys think it's safe to drive to him? it'll be about an hour drive in peak hour tomorrow or should i get it towed. i really can't afford to have heaps more problems

fozzysrb25 Rookie

fozzysrb25

Posted
  • Author
Posted

power fc shows the knock go up, it feels as if a piston is missing and the driving isnt that smooth (didnt boost at all when it started to happen and continued to happen) but what do i know i'm not that good with cars :(

is there anything he can say back to me to try weasel his way out of it? just so i'm prepared for excuses if it happens thanks

SargeRX8 Grand Master

SargeRX8

Posted
Posted

Yeah but thats no gtx. Again though the receipt says stealth gtx. I think what you might have is a high flowed turbo with 3071 core. It can be done but the housing is small and 250rwkw is on par with a highflow. Yes its very likely a 3071 highflow which he could say is what he gave you when he says stealth. You must say to him that no matter what he says a gtx3071 jammed into a 21u housing is not a true gtx3071 which is what you asked for.

How much knock are you reading on the power fc?

StevenCJR31 Veteran

StevenCJR31

Posted
Posted (edited)

Well u can say garrett turbos dont have nissan on them for a start!

just because a part may have NISSAN cast or stamped into it doesnt mean that its made by NISSAN

Edited by StevenCJR31
fozzysrb25 Rookie

fozzysrb25

Posted
  • Author
Posted

Yeah but thats no gtx. Again though the receipt says stealth gtx. I think what you might have is a high flowed turbo with 3071 core. It can be done but the housing is small and 250rwkw is on par with a highflow. Yes its very likely a 3071 highflow which he could say is what he gave you when he says stealth. You must say to him that no matter what he says a gtx3071 jammed into a 21u housing is not a true gtx3071 which is what you asked for.

How much knock are you reading on the power fc?

so basically because the housing is a lot smaller it wrecks all the potential of it?

it knocks up and down by a few bars

SargeRX8 Grand Master

SargeRX8

Posted
Posted

Good luck with it. On aftermarket mods you will struggle with a warranty of any sort

What do you mean? This isnt a warranty issue. He got shafted. He did not get the parts he wanted or expected.

How much knock as a number? It should show you the reading as a digita bar display and as a peak number. I dont think its a great idea shoving a 3071 core into a 21u. Its like putting a lion on a leash.

fozzysrb25 Rookie

fozzysrb25

Posted
  • Author
Posted

What do you mean? This isnt a warranty issue. He got shafted. He did not get the parts he wanted or expected.

How much knock as a number? It should show you the reading as a digita bar display and as a peak number. I dont think its a great idea shoving a 3071 core into a 21u. Its like putting a lion on a leash.

i havn't really played around with the power fc i'm pretty scared of changing any settings, it looks like it was going up to 4 bars on the digital display and i could feel it when driving, too scared to start the engine now don't want to wreck any more will get it towed to him tomorrow morning and hopefully it goes well, he told me the engine will look stock but he said nothing about changing the gtx3071 and putting it inside the stock turbo i thought he meant he was going low mount so if i did get pulled over a quick glance at the engine bay won't be able to see the turbo

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Komdotkom
      R32 Gtst - Track Car

      By Komdotkom · Posted

      Good luck on the weekend mate
    • Duncan
      From Japan and back to Europe, my sh*tbox R34 GTT

      By Duncan · Posted

      Must have been an absolute nightmare to drive when the power steer was out, the rack ratio/wheel size/caster is all set up for power assistance
    • Duncan
      New

      By Duncan · Posted

      Welcome to SAU, what are you looking at buying?
    • GabsReDeal
      R32 GTS (RB20DE) Injectors Replacement

      By GabsReDeal · Posted

      I checked the injectors again (1 and 2, since they’re easiest to access) to make sure they weren’t clogged. Even though the entire fuel system had been cleaned, I wanted to be certain. Everything looked clean, so I reinstalled and connected everything. When I started the car to confirm everything was okay, it immediately revved up high, so I shut it off straight away. I checked to see if I’d missed a vacuum hose or something, but everything was connected. On the second attempt, the car ran without the high idle, but I noticed a distinct “compressed air” sound coming from the engine bay. Tracing the sound, I pushed injector #6 forward slightly and the noise stopped — it turned out it wasn’t seated properly, despite the fuel rail being bolted down. While holding it in place, the car idled steadily without stalling and ran for over 5 minutes. At this point, I pulled all six injectors out just in case I hadn’t seated them correctly or dirt had gotten onto the O-rings. Unfortunately, I discovered that I had damaged 3 out of 6 injectors (the OEM 270cc ones) during installation. So yes, this was my fault. Since only the pintle caps were damaged, I’ve ordered a Fuel Injector Service Kit from NZEFI to refurbish them. In the meantime, I reinstalled my new injectors – the car now idles fine for over 15 minutes without stalling. I have not attempted to drive it so far. It’s not perfect yet, as it hesitates when the throttle is pressed, but it’s a big improvement. Unplugging the IACV with the new injectors idles at around 800rpm, even with the IACV screw tightened fully. But this is probably due to tune.
    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      I wanted to try and preserve the front bumper as long as possible, they're not cheap and are made to order in Japan. Taking inspiration from my previous K11 Micra build where I made an undertray for the Impul bumper, I did the same for this BN Sports bumper but a little slimmed down.  This time round I only made a 'skid plate' (if that's the correct wording/term) for just the bumper surface area, the Micra version covered the gap like an undertray. Starting off with a sheet of mild steel approx. 0.9mm thick 4ft x 2ft in size. I traced around the bumper, cut it out and cleaned the edges. Luckily I was able to get two halves from one piece of metal In the video I installed it as is, but I've since then I've removed it to spray and add a rubber edging trim. The rubber trim is suitable for 1-2mm and it's a really nice tight fit. The bolts had to be loosened due to the plates being too tight against the bumper, the trim wouldn't push on I used some stainless M6 flat headed bolts for a flusher finish (rather than hex heads poking down), I believe this style fastener is used for furniture too incase you struggle to source some. The corner's are a little wider, but this may be an advantage incase I get close to bumping it  The front grill got some attention, finally getting round to repairing it. Upon removal one fixing pulled itself out of the plastic frame, one side is M8 that fixes inside of the frame, where as the other side is M5. Not knowing I could get replacements, I cut down an M8 bolt, threaded it inside the frame along with a decent amount of JB Weld.  The mesh was replaced to match the bumper. One hole on the bonnet/hood had to be drilled out to 8mm to accommodate the new stud, once the glue had set it could be refitted. I think the reason the grill was double meshed was to hide the horn/bonnet latch (which makes sense) but I much prefer it matching the bumper Bumper refitted and it's looking much better IMO The Youtube video can be seen here: https://www.youtube.com/watch?v=bVZP35io9MA
×
×
  • Create New...