4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

need help.. crap launches! :(

Thread Tools
 
Search this Thread
 
Old 01-11-2008, 11:42 PM
  #1  
SalikDDD
3rd Gear Member
Thread Starter
 
SalikDDD's Avatar
 
Join Date: Oct 2007
Location: Florida
Posts: 671
Default need help.. crap launches! :(

well guys.. i went back out this week to try to run a bit better than my 14.4 and i did... 14.3.. lol the car doesn't come out strong and i think it holds it in 1st way too long, it's almost at 6K before it shifts. so i might set my shift point from 1-2 at like 5k or 4800.. but anyway

i got a new stall converter in that should be around 2500-2700 yet the car tries to creep at around 2. i'm using BFG 275/50/15 drag radials with no wheel spin but - it just is so slow off the line. i'm cutting 2.0 - 2.1 60's, the same as my street tires did!

is the stall TOO low? or what? should i go to 3000 ? 3200 ?

98 GT -auto (obviously lol)

PI Intake
Custom JLT Wannabe Intake Tube
9" K&N
ASP Underdrives
FRPP SS Shorties
BBK Offroad H
Crapmaster 40's
FRPP 3.73 (new design)
C&L Upper Intake
75MM TB
Coolant bypass
no front sway bar
subframe connectors
sniper tuner (tuned by sniper themselves)


SalikDDD is offline  
Old 01-12-2008, 08:11 AM
  #2  
JayC
4th Gear Member
 
JayC's Avatar
 
Join Date: Jul 2004
Location:
Posts: 1,860
Default RE: need help.. crap launches! :(

With an Auto, 3.73's and low horsepower I doubt it gets much better. Actually the E.T. ain't that bad for what it is[8D]
JayC is offline  
Old 01-12-2008, 09:46 AM
  #3  
Dsmfighter
3rd Gear Member
 
Dsmfighter's Avatar
 
Join Date: Jan 2005
Location: Canton Ohio
Posts: 731
Default RE: need help.. crap launches! :(

I know of a local guy who is running an auto npi car, went 13.3 last year at norwalk with little done to it:

Circle-D Specialties Billet 4000rpm stall torque converter
4.10's
j mod
full suspension
BFG d/r
and basic bolt-on's (-LT's)with a pi intake/cams and a tune.


He's looking for 12's this coming year. I would step up in gear and go with a high stall, that should help quite a bit.
Dsmfighter is offline  
Old 01-12-2008, 09:53 AM
  #4  
JayC
4th Gear Member
 
JayC's Avatar
 
Join Date: Jul 2004
Location:
Posts: 1,860
Default RE: need help.. crap launches! :(

Big difference in his mods .
JayC is offline  
Old 01-12-2008, 10:20 AM
  #5  
72MachOne99GT
2010 Blue Ball Award Recipient
 
72MachOne99GT's Avatar
 
Join Date: Dec 2004
Location: Eskimo Village, Indiana *No Igloo*
Posts: 7,907
Default RE: need help.. crap launches! :(

what are you trapping?

you should definately be running a bit better, unless its hotter andmore humid than anything ive ever been in, every time that you run

ive got 13.8's with 2.0 60' times with just gears and a partial exhaust in my 99....
you should have more power and with that 60', 13.6's or 13.7's should be fairly feasible
72MachOne99GT is offline  
Old 01-12-2008, 02:31 PM
  #6  
PRO50SC
The Rogue Mod
 
PRO50SC's Avatar
 
Join Date: Feb 2006
Location: Maryland Sucka's!!
Posts: 21,918
Default RE: need help.. crap launches! :(

3.73's and an auto ain't helpin. 4.10's would be a better chioce.
PRO50SC is offline  
Old 01-12-2008, 02:57 PM
  #7  
JayC
4th Gear Member
 
JayC's Avatar
 
Join Date: Jul 2004
Location:
Posts: 1,860
Default RE: need help.. crap launches! :(

From what I see in his mods , he still has non-PI heads and cams so he'd be lucky to see ~200rwhp through that Auto. That along with a near useless stall and not near enough gear is killing him.
JayC is offline  
Old 01-12-2008, 03:20 PM
  #8  
tim2002gt
3rd Gear Member
 
tim2002gt's Avatar
 
Join Date: Aug 2007
Location: Tulsa, OK
Posts: 670
Default RE: need help.. crap launches! :(

ORIGINAL: JayC

From what I see in his mods , he still has non-PI heads and cams so he'd be lucky to see ~200rwhp through that Auto. That along with a near useless stall and not near enough gear is killing him.
+1
The 14.30 is a good time for an npi auto.
tim2002gt is offline  
Old 01-12-2008, 04:01 PM
  #9  
SalikDDD
3rd Gear Member
Thread Starter
 
SalikDDD's Avatar
 
Join Date: Oct 2007
Location: Florida
Posts: 671
Default RE: need help.. crap launches! :(

ORIGINAL: JayC

From what I see in his mods , he still has non-PI heads and cams so he'd be lucky to see ~200rwhp through that Auto. That along with a near useless stall and not near enough gear is killing him.
actually the car put down right at 230 rwhp so.. :| and the car is spinning the tires off the line - the main cause i think is it's shifting out of 1st at right around 5800-6K i.e. holding itself into 1st too long in rpms with no power.
SalikDDD is offline  
Old 01-12-2008, 05:52 PM
  #10  
JayC
4th Gear Member
 
JayC's Avatar
 
Join Date: Jul 2004
Location:
Posts: 1,860
Default RE: need help.. crap launches! :(

Hmmmmmmmmm....you said "with no wheel spin" , so I'm not sure what to think now. Also that must be one of those "friendly" dynos if your combo made 230rwhp. I'd like to see the dyno sheet on that one
JayC is offline  


Quick Reply: need help.. crap launches! :(



All times are GMT -5. The time now is 02:23 AM.