New Greddy FMIC and problems...
#1
Full Member
Thread Starter
iTrader: (1)
Join Date: Mar 2003
Location: omaha
Posts: 210
Likes: 0
Received 0 Likes
on
0 Posts
New Greddy FMIC and problems...
I just installed a new Greddy FMIC with my stock twins. For some reason I have less boost and horsepower now than I did before. When I accelerate I here a loud whistling and lots of air noise under boost.
Any thoughts what might be causing this?
4ESTRX7
Any thoughts what might be causing this?
4ESTRX7
#4
BOOOYAHHHH!
Originally Posted by 4estRX7
I just installed a new Greddy FMIC with my stock twins. For some reason I have less boost and horsepower now than I did before. When I accelerate I here a loud whistling and lots of air noise under boost.
Any thoughts what might be causing this?
4ESTRX7
Any thoughts what might be causing this?
4ESTRX7
I know im gboing to sound like an *******.. Im not trying to be.. But it absolutly amazes me that people who have a decent amount of modifications cant troubleshoot for ****.. I mean come on... Airnoise+only under boost+Lose of HP............
Did you bother to check what your boost gauge is reading???? Please tell me you have a boost gauge.
#5
Senior Member
iTrader: (1)
Join Date: Nov 2004
Location: Austin, TX
Posts: 494
Likes: 0
Received 0 Likes
on
0 Posts
you kind of right, if your going to work on your car you should at least have a little clue of whats going on, but hay we all have to start somewhere. i just dont think the rx7 is the car to learn IMHO
#6
Full Member
Thread Starter
iTrader: (1)
Join Date: Mar 2003
Location: omaha
Posts: 210
Likes: 0
Received 0 Likes
on
0 Posts
I do have boost gauge! and I have checked all the hoses and clamps and such. Nothing visible there. I am maxing at about 10psi with the controller turned pretty much all the way up. Before the FMIC I would blow the turbos up if I had the controller set that high. I was thinkning that one of the factory BOV's was letting air leak out under boost?
Does anyone know what is the end of the efficiancy range on the factory twins?
thx
Does anyone know what is the end of the efficiancy range on the factory twins?
thx
#7
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
You have a boost leak man, it's as simple as that. One of your couplers is probably loose, or torn, or something along those lines. How can you install an FMIC and not know how to check for a boost leak?
Trending Topics
#11
Ghost Ride the Whip
check to see if any of the couplers or intercooler pipes came loose. You probably didn't fasten the couplers on tight enough or in the wrong position so when you boost, the pipes blew off. If I remember correctly, the greddy FMIC has a lot of piping so just start by checking the intercooler pipes first.
#12
Rotary Enthusiast
Join Date: Jan 2005
Location: orlando/st. petersburg
Posts: 769
Likes: 0
Received 0 Likes
on
0 Posts
come on guys the forum is here to help not down on people if you dont want to help then dont bash on the guy. Make sure you didnt mix up your boost controller lines.
#13
Planning my come back
iTrader: (7)
Join Date: Feb 2003
Location: Austin, Tx
Posts: 3,393
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by kuroi FD
come on guys the forum is here to help not down on people if you dont want to help then dont bash on the guy.
Once you find your boost leak, which I can tell you pretty much is at the IC entrace coupler, TURN DOWN THE BOOST before you drive the car. Then get you a freaking boost gauge which should have been the first thing you should got!!!
#14
Full Member
Thread Starter
iTrader: (1)
Join Date: Mar 2003
Location: omaha
Posts: 210
Likes: 0
Received 0 Likes
on
0 Posts
Again, I have a boost gauge and so forth. I also know what a boost leak sounds like but I thought I might have been leaking due to a faulty air bypass Valve. THe air coming out under boost is pretty loud and it whistles.
#15
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
It's basic troubleshooting. The first place you start is exactly with what you changed, which would be the IC piping and any other hose/line changes you made.
And yes, turn your boost controller DOWN first. You never should have raised it in the first place, the second you saw low boost, you should have realized something was hooked up incorrectly (or not at all).
Good luck, I bet you find the problem within 5 minutes once you actually go look.
And yes, turn your boost controller DOWN first. You never should have raised it in the first place, the second you saw low boost, you should have realized something was hooked up incorrectly (or not at all).
Good luck, I bet you find the problem within 5 minutes once you actually go look.
#16
BOOOYAHHHH!
when you raise boost like that to compensate for a boost leak you are placing EXTREME stress on your turbo and are shooting right by their effeciency range, Thus blowing a crapload of hotair. If you do not fix the problem you WILL 1 pop your motor and 2 blow your turbos...... That being said.... Find the leak
#17
Senior Member
Join Date: Dec 2004
Location: In your wheelhouse
Posts: 502
Likes: 0
Received 0 Likes
on
0 Posts
If you are positive that you checked your connections then you could have a crushed / deformed pipe. If you used t-bolt clamps you could have crushed one of the pipes and wouldn't see it under the coupler. Just a thought.