What have you done to your mustang today?

lethe

V4g!n@ #er
Joined
Jul 28, 2012
Posts
4,002
Reaction score
1
Location
Everett, Wa
I installed some hot rod cams today. Install was easy and pretty straight forward. Overall it took me about 5 hours and thats including the 30 minutes it took me to find one of the bearing caps i dropped haha. I ended up jacking the car up and feeling around and found it sitting it the control arm. I definitely feel a difference with the butt dyno. Its a little wet and icy so i haven't had a chance to really open it up. Only issues are a surging idle when rolling up to a stop. Most of the time is will surge twice between 450-900 rpm and then settle around 850 rpm. Sometimes it will continuously surge between those rpms until i take off again. When it does idle consistently it never drops below 800 rpm even though according to the tune its set at 740 rpm. Im going to call Brenspeed Monday and see if they can try modifying the tune. Anyways here's a short vid i took. First rev is to about 3k rpm and the second rev is a blip to 3k rpm and then to about 5300 rpm.

 

3VPOWA

Senior Member
Joined
Sep 4, 2009
Posts
2,096
Reaction score
4
Location
East Texas
Sounds awesome, man! What does your exhaust consist of?

And I'm not sure why, but my car used to do that surging idle when I would reflash the tune until I drove it a little bit. Was worse in the cold weather.
 

lethe

V4g!n@ #er
Joined
Jul 28, 2012
Posts
4,002
Reaction score
1
Location
Everett, Wa
Sounds awesome, man! What does your exhaust consist of?

And I'm not sure why, but my car used to do that surging idle when I would reflash the tune until I drove it a little bit. Was worse in the cold weather.

My exhaust setup is JBA longtubes, JBA H pipe with magnaflow cats, MBRP axle back. Its a little above freezing here so it is a little on the cold side. I drove the car for about 20 minutes and went through several key cycles to see if anything changed but it didn't. I tried reloading the tune a second time and had the same results. If Brenspeed can't figure it out or it doesn't stop on its own i will be a little annoyed but i'll be getting a dyno tune in a few months when i install a FRPP intake manifold and larger throttle body.
 

weather man

Persistence Is A Bitch
Joined
Mar 3, 2012
Posts
13,340
Reaction score
161
Location
MN
My exhaust setup is JBA longtubes, JBA H pipe with magnaflow cats, MBRP axle back. Its a little above freezing here so it is a little on the cold side. I drove the car for about 20 minutes and went through several key cycles to see if anything changed but it didn't. I tried reloading the tune a second time and had the same results. If Brenspeed can't figure it out or it doesn't stop on its own i will be a little annoyed but i'll be getting a dyno tune in a few months when i install a FRPP intake manifold and larger throttle body.

My breakin tune did that. Made breaking in the new clutch a little funner! Final tune took care of it.
 

NotaHybrid

I'm slow
Joined
Sep 18, 2012
Posts
1,191
Reaction score
0
Location
Mobile, AL
I installed some hot rod cams today. Install was easy and pretty straight forward. Overall it took me about 5 hours and thats including the 30 minutes it took me to find one of the bearing caps i dropped haha. I ended up jacking the car up and feeling around and found it sitting it the control arm. I definitely feel a difference with the butt dyno. Its a little wet and icy so i haven't had a chance to really open it up. Only issues are a surging idle when rolling up to a stop. Most of the time is will surge twice between 450-900 rpm and then settle around 850 rpm. Sometimes it will continuously surge between those rpms until i take off again. When it does idle consistently it never drops below 800 rpm even though according to the tune its set at 740 rpm. Im going to call Brenspeed Monday and see if they can try modifying the tune. Anyways here's a short vid i took. First rev is to about 3k rpm and the second rev is a blip to 3k rpm and then to about 5300 rpm.

Let me know if you get the surging idle problem fixed. Mine does the same thing with Detroit rockers I installed like 3-4 weeks ago. I haven't had time to call brenspeed. :rant:
 

lethe

V4g!n@ #er
Joined
Jul 28, 2012
Posts
4,002
Reaction score
1
Location
Everett, Wa
Let me know if you get the surging idle problem fixed. Mine does the same thing with Detroit rockers I installed like 3-4 weeks ago. I haven't had time to call brenspeed. :rant:

Im going to call them on monday and see what they say. worst case scenario i'll deal with it for a month or two until i install a FRPP and larger throttle body and get a dyno tune.
 

NotQuik

I can't drive
Joined
Sep 2, 2007
Posts
2,705
Reaction score
2
Location
Central Florida
Drove it for the first time today....I gotta admit that I kind of hope the guy at work doesn't pull through. Certainly not an easy decision...
 

sethah

Member
Joined
Aug 7, 2012
Posts
288
Reaction score
0
Location
Brazil, Indiana
ebuma5e7.jpg
ypu4a9u2.jpg

Just finished installing the frpp intake & bbk tb. So heres the before & after pics.
Sent from my SAMSUNG-SGH-I897 using Tapatalk 2
 

SS KILLR

Killer of the SS
Joined
Jan 4, 2012
Posts
2,325
Reaction score
0
Location
Temple Texas
Damn Darren I'm getting you a box of latex gloves for Christmas next year. Witch leads me to my next question. When your under your car doing something do you wear a full body condom??
 

Support us!

Support Us - Become A Supporting Member Today!

Click Here For Details

Back
Top