HELP?! Trouble building boost with twins, on transbrake - Ford Mustang Forums : Corral.net Mustang Forum
 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 06-23-2019, 10:40 AM Thread Starter
Registered User
 
jeffreycobra's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2019
Posts: 13
HELP?! Trouble building boost with twins, on transbrake

Little rundown on the car.
03’ terminator with twin Precision 64’s being controlled by the AMS-1000 boost controller. Laid down 1060rwhp on dyin @ 23psi. Trans is a turbo 400, reverse manual valve, with transbrake on 1st & 2nd. “3500-3600” stall ( PTC said this is the one to use and figured they were correct since they’re the manufacturer.

The problem we’re having is no matter what the 2 step is set at and no matter what the boost controller is turned up to the car won’t build more than 10-11 total boost psi while WOT and on the trans brake. Regardless of how long it sits there, or how high the car is revved it just won’t spool any higher.
Once the car CRAWLS off the line, literally not even cracking the tire loose and gets past the 60’ it sounds like a jet engine spooling and takes off like a bat outta hell LOL
Just frustrating when the 60’ times are 1.9-2.1 and 1/4 ET is mid/low 11’s with a mph at 150. Any advice OTHER than saying the stall is too tight??? Thank you guys!

jeffreycobra is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 06-23-2019, 11:41 AM
Registered User
 
Trader Feedback: (41)
Join Date: Jun 2004
Location: The Big Apple
Posts: 3,433
What a/r exhaust housings are you running? Gen 2 64's?

stangjumper is offline  
post #3 of 9 Old 06-23-2019, 07:45 PM Thread Starter
Registered User
 
jeffreycobra's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2019
Posts: 13
Quote:
Originally Posted by stangjumper View Post
What a/r exhaust housings are you running? Gen 2 64's?
excuse my dumbness but what type of housings ? A/R? The manifolds, jntercooler and plumbing kit I got used off a guy the controller is brand new
jeffreycobra is offline  
Sponsored Links
Advertisement
 
post #4 of 9 Old 06-23-2019, 07:49 PM Thread Starter
Registered User
 
jeffreycobra's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2019
Posts: 13
Quote:
Originally Posted by stangjumper View Post
What a/r exhaust housings are you running? Gen 2 64's?
Sorry mind fart. Yes gen 2 precision’s
jeffreycobra is offline  
post #5 of 9 Old 06-23-2019, 08:10 PM Thread Starter
Registered User
 
jeffreycobra's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2019
Posts: 13
Quote:
Originally Posted by stangjumper View Post
What a/r exhaust housings are you running? Gen 2 64's?
I have videos of what the car does on trans brake, I’m not sure how to send it though or post it on here
jeffreycobra is offline  
post #6 of 9 Old 06-23-2019, 10:55 PM
Registered User
 
Trader Feedback: (41)
Join Date: Jun 2004
Location: The Big Apple
Posts: 3,433
A/R will be 68, 81 or 96. Higher number will flow more but spool slower.
stangjumper is offline  
post #7 of 9 Old 06-24-2019, 12:46 PM
Registered User
 
91ntchdream's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2002
Location: Melbourne, Florida
Posts: 279
Quote:
Originally Posted by jeffreycobra View Post
Little rundown on the car.
03’ terminator with twin Precision 64’s being controlled by the AMS-1000 boost controller. Laid down 1060rwhp on dyin @ 23psi. Trans is a turbo 400, reverse manual valve, with transbrake on 1st & 2nd. “3500-3600” stall ( PTC said this is the one to use and figured they were correct since they’re the manufacturer.

The problem we’re having is no matter what the 2 step is set at and no matter what the boost controller is turned up to the car won’t build more than 10-11 total boost psi while WOT and on the trans brake. Regardless of how long it sits there, or how high the car is revved it just won’t spool any higher.
Once the car CRAWLS off the line, literally not even cracking the tire loose and gets past the 60’ it sounds like a jet engine spooling and takes off like a bat outta hell LOL
Just frustrating when the 60’ times are 1.9-2.1 and 1/4 ET is mid/low 11’s with a mph at 150. Any advice OTHER than saying the stall is too tight??? Thank you guys!
Sorry man, if it's not building boost it's All in the converter, I would go with a smaller diameter and looser converter when you replace it, otherwise your shortening the #### out of the life of your transmission just sitting there on the Transbrake at WOT and trying to build boost. If you keep doing that and don't get a looser converter, you'll be replacing the Transmission and the converter very soon.

1983 4 Eye Notch - 347 fixing what previous owner did and attempting to dial it in
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
91ntchdream is offline  
post #8 of 9 Old 06-24-2019, 06:30 PM
Registered User
 
Trader Feedback: (41)
Join Date: Jun 2004
Location: The Big Apple
Posts: 3,433
Before you start changing parts, find out what a/r exhaust housing you are running.
stangjumper is offline  
post #9 of 9 Old 06-29-2019, 07:12 PM Thread Starter
Registered User
 
jeffreycobra's Avatar
 
Trader Feedback: (0)
Join Date: Feb 2019
Posts: 13
Quote:
Originally Posted by stangjumper View Post
Before you start changing parts, find out what a/r exhaust housing you are running.
I believe they’re the Gen 2 BB divided .84 V band. They’re 6266’s. Like I said no matter what can’t get it to rev past 3200 on the transbrake at 10psi, let off the tb it crawls out a little spools up like a jet engine and away she goes but it’s usually to far gone to get the win lights. I have a video I’ll email you it or something
jeffreycobra is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome