Wrong Turbo And Knocking

[fozzysrb25]

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

[SargeRX8]

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.

[SargeRX8]

Can you get some photos up. Will be very easy to determine what has and hasnt happened. Now I also question if he put your fuel pump in.

[Ben C34]

You definitely have issues. so you blew off an intercooler pipe and your boost gauge and controller all with a stock turbo? wtf?

[StevenCJR31]

sound like a bit of wordplay by the mechanic

isnt the factory turbo a garrett?

[fozzysrb25]

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]

sorry for double post but i had paid 2.8k for the turbo so it can't of been right

just realised i could edit woops :S sorry no fuel pump on receipt

Edited August 18, 2013 by fozzysrb25

[Mick_o]

Thats no GTX mate, you've been ripped off!

Time to approach this "mechanic"

[Ben C34]

When you say knocking do you mean pinging on boost or knocking all the time, like screwed bottom End?

[fozzysrb25]

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

[Super Drager]

Looks like he just threw a highflow in there mate, 330hp on 18psi is what a highflow should do. Long ways off a GTX.

[Mick_o]

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

[Ben C34]

garret makes nissan turbos?

[SargeRX8]

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]

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 August 18, 2013 by StevenCJR31

[fozzysrb25]

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

[fozzysrb25]

also if the problems have been caused by him am i required to pay for it?

[Ben C34]

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

[SargeRX8]

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]

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