Organized Drag Racing and Autocross Drag racing and autocross discussions and questions. Techniques, tips, suggestions, and "what will I run?" questions.

What trap speed do I need for a 7.70 pass (1/8th mile)?

Thread Tools
 
Search this Thread
 
Old Apr 12, 2005 | 09:20 AM
  #1  
Free Bird's Avatar
Thread Starter
Supreme Member
iTrader: (1)
 
Joined: Jun 2001
Posts: 1,668
Likes: 0
From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
What trap speed do I need for a 7.70 pass (1/8th mile)?

I know there's a bunch of different variables, but I'm shooting for a 1.65 or better 60'. I trapped at 84mph last time out and that was missing third every pass (clutch was done). Hopfully shooting for high 80's in the mph. Will that do it or will I need a low to mid 90mph pass to get that ET?
Reply
Old Apr 12, 2005 | 11:36 AM
  #2  
unknown_host's Avatar
Supreme Member
iTrader: (1)
 
Joined: Mar 2001
Posts: 3,245
Likes: 1
From: Medford, Oregon
Car: 1989 Iroc Z L98
I think my best was 7.88 @ 88.XX with slower short times than you are running, I would imagine with your short times you only need a few more mph.
Reply
Old Apr 12, 2005 | 08:17 PM
  #3  
TTA850's Avatar
Senior Member
 
Joined: Jun 2000
Posts: 645
Likes: 0
From: NY
Car: 2013 C63C
Engine: M156 (P31)
Transmission: 7 speed MCT
Axle/Gears: AMG Limited Slip
My old car used to run in the 7.6-7.7 range (best 7.61@90.31mph on a 1.63 60ft) and speeds between 88-90mph.

HTH,
Steve
Reply
Old Apr 13, 2005 | 05:08 PM
  #4  
muggsyjack's Avatar
Member
 
Joined: Feb 2002
Posts: 296
Likes: 1
From: Florida
Car: 1992 RS Camaro bracket car
Engine: 350
Transmission: TH-350
Should be 88 - 90 MPH. Since you are running a stick, may be a little different.
Attached Thumbnails What trap speed do I need for a 7.70 pass (1/8th mile)?-forest1tgo.jpg  
Reply
Old Apr 15, 2005 | 10:59 AM
  #5  
Free Bird's Avatar
Thread Starter
Supreme Member
iTrader: (1)
 
Joined: Jun 2001
Posts: 1,668
Likes: 0
From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
Originally posted by muggsyjack
Should be 88 - 90 MPH. Since you are running a stick, may be a little different.
Are you just running air bags in the rear? No Anti-roll bar? Looks like it launches pretty straight.
Reply
Old Apr 15, 2005 | 11:19 AM
  #6  
muggsyjack's Avatar
Member
 
Joined: Feb 2002
Posts: 296
Likes: 1
From: Florida
Car: 1992 RS Camaro bracket car
Engine: 350
Transmission: TH-350
Boxed Lower control arms, relocation brackets, airbags, adjustable panhard bar, stock torque arm and stock rear sway bar.

Car does launch very flat. Use 10 to 15 PSI differential in bags.

This car is son's car, ran best of 6.88 in 1/8th mile w/1.44 60' time. Engine is .030 over 350 4 bolt spinning to 7500 RPM. Rear is 9" w/5.14 gears and 5700 stall converter.

Red car below is 4.30 rear gear car. Picture shows 350 power. With 305 currently in car, has run best of 8.01 at 83.5 MPH w/1.72 60'. This is through a TH-400 w/5400 stall converter.
Attached Thumbnails What trap speed do I need for a 7.70 pass (1/8th mile)?-img_1745stgo.jpg  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
colton_carlson
Firebirds for Sale
7
Mar 8, 2019 12:21 PM
1986Z28OWNER
Power Adders
46
Dec 13, 2015 10:19 PM
jbd1969
Tech / General Engine
1
Aug 17, 2015 07:06 PM
kyleb24
Camaros for Sale
2
Aug 15, 2015 08:24 AM




All times are GMT -5. The time now is 03:06 AM.