Weird noise, tell me it's not my engine
#1
Always in style
![](https://www.rx7club.com/images/misc/10_year_icon.png)
Thread Starter
Join Date: Jun 2007
Location: SF Bay Area
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Weird noise, tell me it's not my engine
Ok so this only started happening very recently, and when I think about it it's been happening after I turned up the boost (stock S5 TII with ported stock turbo) to 8.7psi (no fuel mods, just have a techtom rom chip which I believe SHOULD prevent fuel cut). I've never "hit a wall" so to speak while running full boost, and the car does not feel any slower than it has ever been.
It makes a weird noise, almost like a whirring noise (but it's not the pilot bearing because it's not the same noise). The best example I can give is like a Prius that's being pushed hard, or another electric motor. As I bring the revs up, the noise gets louder. It's inaudible after maybe 10-15 mins of driving (once car is fully warmed up and thermostat opens up).
My car has been starting fine (doesn't flood), so I'm still hopeful that the compression is decent. I have no access to a compression tester, so I'm hoping someone else can diagnose the problem before I potentially destroy my car.
It makes a weird noise, almost like a whirring noise (but it's not the pilot bearing because it's not the same noise). The best example I can give is like a Prius that's being pushed hard, or another electric motor. As I bring the revs up, the noise gets louder. It's inaudible after maybe 10-15 mins of driving (once car is fully warmed up and thermostat opens up).
My car has been starting fine (doesn't flood), so I'm still hopeful that the compression is decent. I have no access to a compression tester, so I'm hoping someone else can diagnose the problem before I potentially destroy my car.
#5
Apprentice Tech.
![](https://www.rx7club.com/images/misc/15_year_icon.png)
iTrader: (5)
Join Date: Nov 2005
Location: Marysville, Wa
Posts: 484
Likes: 0
Received 0 Likes
on
0 Posts
5spd right? i would make sure that your tranny has suffecient fluid levels. mine kinda wines but i know its low so... also, yeah check the diff. same fluid thats in your tranny (if im correct)
another idea that might not be too far off is your turbo might not want to live anymore lol...
my mom has that ron paul relovetion thing all over her car btw....
another idea that might not be too far off is your turbo might not want to live anymore lol...
my mom has that ron paul relovetion thing all over her car btw....
![Icon Tup](https://www.rx7club.com/images/smilies/icon_tup.gif)
Trending Topics
#8
rotarysurgeonextraordinar
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Join Date: Sep 2006
Location: Columbia, SC
Posts: 50
Likes: 0
Received 0 Likes
on
0 Posts
this may be a dumb question but do you still have the smog pump hooked up? If so thats probally what it is. Mine did the same thing before I pulled it off. Do the checks mentioned above to rule out the tranny or drivetrain
Thread
Thread Starter
Forum
Replies
Last Post
The Shaolin
2nd Generation Specific (1986-1992)
9
09-14-15 07:50 PM