SC Install resulted in 50 more HP...suggestions needed

ChaseZ · 04-18-2017, 10:39 AM

If RT is only an hour away then it is almost certainly worth it to bring it to them. Even if you figure out this noise thing it doesn't sound like that car was running/performing right to begin with. They know the cars not to mention forced induction for them, and that can be worth a whole lot more than an extra 100 bucks in your pocket.

YzGyz · 04-18-2017, 11:11 AM

Time to get a buddy with a truck and rent a uhaul car dolly. Road trip!

YzGyz

imazman · 04-18-2017, 08:55 PM

Quote:

Originally Posted by Chuck33079

Are you sure it's not the throttle body noise? They whine after shutdown, and then you hear a click.

RT Tuning is good. They'll solve your problems. $100/hr is pretty standard for shops. Boosting a car that came from the factory NA costs more than you initially budget. If you can't afford to have a good shop look the car over and tune it, you sure as hell can't afford not to. A replacement shortblock is LOTS more money than a few hours of diagnosis and a good tune.

It definitely was louder right at the throttle body, but thought the sound could be from the MAP too and it just happen to channel the sound out the rubber connections louder than via the metal plenum. But yes, perhaps it is just throttle body noise because yes as soon as i hear a loud click...noise is gone.

@ChaseZ
If I dont put foot on brake when I push button once nothing really happens...push it again and accessory goes on and that is when I hear the noise (assuming I drove the car and turned off the engine). Doesnt make the noise when the car wasnt run. If you listen closely in the video you can hear the swishing of the SC water reservoir. The pump does make a slight noise...hmmm persay, but it is not as loud as that noise and the pump is under the driver side headlight. I moved the phone over there in the video to show the pump was not the source of the noise.
The only "real" PLX sensor I have is the boost (pressure sensor) tube tapped in at bpv and run into firewall. Injectors are from Still kit (600's I believe) without adapters. Next time I take it for a drive I will check to see where the click is coming from...but yea i think it is probably coming from under the cover.

I guess I will shelve it for a little and save up for a tuner. I have a few parts I was going to get which have required a retune...so I guess that would be the time to get them.

I cant thank everyone enough for your thoughts and your concern to help out.

/Z/

ChaseZ · 04-18-2017, 09:27 PM

I'm about to I'll all my coolant stuff off but if you'd like any sort of comparison sound video for reference let me know. I've got a few from when it was first installed if that would help. In any case I've never had that hi-pitched electric sound that yours does. I've had different issues but that isn't one of them. My gut still tells me a ground or something similar.

04-18-2017, 11:11 AM	#77 (permalink)
YzGyz A True Z Fanatic Join Date: Jun 2013 Location: Houston Posts: 1,449 Drives: 2010 Nismo Rep Power: 63	Time to get a buddy with a truck and rent a uhaul car dolly. Road trip! YzGyz Chuck33079, imazman and wideglideleon like this. __________________ http://www.the370z.com/members-370z-...gyzs-turn.html YzGyz

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04-18-2017, 10:39 AM	#76 (permalink)
ChaseZ A True Z Fanatic Join Date: May 2016 Location: Calgary Posts: 3,799 Drives: 16 370z Rep Power: 94683	If RT is only an hour away then it is almost certainly worth it to bring it to them. Even if you figure out this noise thing it doesn't sound like that car was running/performing right to begin with. They know the cars not to mention forced induction for them, and that can be worth a whole lot more than an extra 100 bucks in your pocket.

04-18-2017, 09:27 PM	#79 (permalink)
ChaseZ A True Z Fanatic Join Date: May 2016 Location: Calgary Posts: 3,799 Drives: 16 370z Rep Power: 94683	I'm about to I'll all my coolant stuff off but if you'd like any sort of comparison sound video for reference let me know. I've got a few from when it was first installed if that would help. In any case I've never had that hi-pitched electric sound that yours does. I've had different issues but that isn't one of them. My gut still tells me a ground or something similar.