Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

3.42 get me into the 14's?

Thread Tools
 
Search this Thread
 
Old 10-29-2000 | 10:38 AM
  #1  
new87's Avatar
Thread Starter
Senior Member
 
Joined: May 2000
Posts: 625
Likes: 0
From: Where the Devil Dances, IL
Car: 87Z
Engine: ?
Transmission: A4
3.42 get me into the 14's?

I ran my car for the first time this weekend heres what I got:
R/T- 1.082
60- 2.137
1/8- 9.848 @ 70.46 MPH
1000- 12.874
1/4- 15.459 @87.91 MPH

Best time of the day,
R/T- 1.466
60- 2.107
1/8- 9.801 @ 68.85 MPH
1000- 12.838
1/4- 15.414 @ 87.47 MPH

With the help of 3.42 rear will that get me into the 14's and what else will help me acheve this goal and not a bigger motor!
Buy the way the car has 2.73 now.

------------------
87 Z28 LB9, Auto, Gutted air boxes, K & N fillters, Dyno Max 3" cat back, Accel 8.8 mm spirals, Accel cap and rotor, Accel coil, rapid fires, and 160 Stat.

[This message has been edited by new87 (edited October 29, 2000).]
Old 10-29-2000 | 11:57 AM
  #2  
Grim Reaper's Avatar
TGO Supporter
 
Joined: Jul 1999
Posts: 10,907
Likes: 3
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Also, look at a higher stall Torque Converter.
Old 10-29-2000 | 12:28 PM
  #3  
IrocManiac's Avatar
Member
 
Joined: Apr 2000
Posts: 213
Likes: 0
From: Ok, USA
I have 3.42's and should probably run 14.9 as my sig indicates. It g-teched at a 14.9 at 93 mph...my actual track time was a 15.3 at 91 but that was before I had the new tranny and the free mods. I have talked to several people who said the free mods would give me a couple tenths and then the tranny should have given me .25 or so with the stage one shift kit and corvette servo.

------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph

"Speed kills, wanna live forever, drive a Ford."
Old 10-29-2000 | 12:32 PM
  #4  
IrocManiac's Avatar
Member
 
Joined: Apr 2000
Posts: 213
Likes: 0
From: Ok, USA
I have 3.42's mods in my sig and my tranny has a stage one shift kit and a Corvette Servo. Last year I ran a 15.3 at 91 mph but that was before my current mods and tranny rebuild. According to the people I have talked to I should be around a 14.9 or 14.85 or so. It g-teched at like a 14.87 at 93 mph and I ran a computer simulation on it and it ran a 14.83 at like 93.xx or something close. You should be close to 14's if your tranny is decent.

------------------
TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph

"Speed kills, wanna live forever, drive a Ford."
Old 10-29-2000 | 09:23 PM
  #5  
zippy's Avatar
Supreme Member
 
Joined: Apr 2000
Posts: 1,338
Likes: 0
From: Chander, Arizona USA
Car: 2006 Silverado 1500
Engine: 5.3L
Transmission: 4L60E
first of all, running a g tech and running on a computer are not real time numbers. i think a swap to 3.42 gear would cut you down to about a 15.1. you'd likely get more of an improvement from a stall converter.
Old 10-30-2000 | 06:39 AM
  #6  
new87's Avatar
Thread Starter
Senior Member
 
Joined: May 2000
Posts: 625
Likes: 0
From: Where the Devil Dances, IL
Car: 87Z
Engine: ?
Transmission: A4
Which stall 2k or 2.3k?

------------------
87 Z28 305 TPI, Auto, 2.73, Gutted air boxes, K & N fillters, Dyno Max 3" cat back, Accel 8.8 mm spirals, Accel cap and rotor, Accel coil, rapid fires, and 160 Stat.
Best 15.414 @ 87.47
Old 10-30-2000 | 06:55 AM
  #7  
Ray87Z's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 1,366
Likes: 0
From: Atlanta, GA, US of A
Car: 94 Z28
Engine: LT1 w/ headers, catback, CAI, tune
Transmission: 4L60E
Axle/Gears: 3.23s
Yeah, I don't think gears alone would get you into the 14s either. Close though.

You'd want a 2400ish rpm stall IMO. Darrel Young has a 2200-2400 unit for $199, I'm running that and am happy w/ it ... www.racing-transmissions.com

I don't know what IrocManiac is blabbering about...

------------------
Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray

[This message has been edited by Ray87Z (edited October 30, 2000).]
Old 10-30-2000 | 12:16 PM
  #8  
new87's Avatar
Thread Starter
Senior Member
 
Joined: May 2000
Posts: 625
Likes: 0
From: Where the Devil Dances, IL
Car: 87Z
Engine: ?
Transmission: A4
Can you change a converter out in a garage, or is more involed than that?
Old 10-30-2000 | 05:18 PM
  #9  
Ray87Z's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 1,366
Likes: 0
From: Atlanta, GA, US of A
Car: 94 Z28
Engine: LT1 w/ headers, catback, CAI, tune
Transmission: 4L60E
Axle/Gears: 3.23s
Well I did. I just put the car up on jack stands and went to it. Rented a tranny jack from a local place as well. Nothing fancy to do.

------------------
Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray
Old 10-30-2000 | 11:50 PM
  #10  
3.1 firebird's Avatar
Senior Member
 
Joined: Nov 1999
Posts: 560
Likes: 0
From: st.louis
gears only gained me a tenth 3.23>3.73, but my mph did go up by 3,so I was pretty happy.

------------------
Modified 3.4 Pacesetter headers,Crane 2020 cam,K&N cone, cat-back ,shift kit,pulleys,3.73's(openrear)
16.18@85.6 and 16.09@83.7
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dbrochard
Engine/Drivetrain/Suspension Parts for Sale
8
01-28-2016 08:42 AM
codeysabatini
Engine/Drivetrain/Suspension Parts for Sale
5
11-10-2015 04:07 PM
JSDaddy189
Organized Drag Racing and Autocross
4
09-26-2015 03:50 PM
georgiaslim45
Engine/Drivetrain/Suspension Parts for Sale
1
09-09-2015 08:12 PM
georgiaslim45
Engine/Drivetrain/Suspension Parts for Sale
3
09-09-2015 08:11 PM



Quick Reply: 3.42 get me into the 14's?



All times are GMT -5. The time now is 04:04 AM.