Rennlist - Porsche Discussion Forums

Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

new tires+21 psi of boost+ hard launch, what do you get?

Thread Tools
 
Search this Thread
 
Old 06-01-2012, 01:08 AM
  #1  
lart951
Basic Sponsor
Rennlist
Site Sponsor
Thread Starter
 
lart951's Avatar
 
Join Date: Dec 2002
Location: California
Posts: 14,436
Received 88 Likes on 51 Posts
Default new tires+21 psi of boost+ hard launch, what do you get?
I am not a good 1/4 mile driver.
Attached Images  
lart951 is offline  
Reply Like
Old 06-01-2012, 01:57 AM
  #2  
blown 944
Race Car
 
blown 944's Avatar
 
Join Date: Jul 2007
Location: Firestone, Colorado
Posts: 4,826
Likes: 0
Received 4 Likes on 4 Posts
Default
Lol, i don't know how this happens.
blown 944 is offline  
Reply Like
Old 06-01-2012, 02:15 AM
  #3  
lart951
Basic Sponsor
Rennlist
Site Sponsor
Thread Starter
 
lart951's Avatar
 
Join Date: Dec 2002
Location: California
Posts: 14,436
Received 88 Likes on 51 Posts
Default
Originally Posted by blown 944
Lol, i don't know how this happens.
I should have kept the HY6-launch control
lart951 is offline  
Reply Like
Old 06-01-2012, 02:24 AM
  #4  
V2Rocket
Rainman
Rennlist Member
 
V2Rocket's Avatar
 
Join Date: Jan 2007
Location: Nashville, TN
Posts: 45,498
Received 633 Likes on 490 Posts
Default



V2Rocket is offline  
Reply Like
Old 06-01-2012, 02:27 AM
  #5  
drift a 944
Rennlist Member
 
drift a 944's Avatar
 
Join Date: Jan 2007
Location: Blairsville GA
Posts: 2,146
Likes: 0
Received 1 Like on 1 Post
Default
Were you running an open differential or some type of spring lsd?

I've lost count of how many times it's happened to me.
drift a 944 is offline  
Reply Like
Old 06-01-2012, 02:33 AM
  #6  
blown 944
Race Car
 
blown 944's Avatar
 
Join Date: Jul 2007
Location: Firestone, Colorado
Posts: 4,826
Likes: 0
Received 4 Likes on 4 Posts
Default
Do you just side step the pedal? If so that is the problem. I modulate it about 50% for a few feet then let it hp
blown 944 is offline  
Reply Like
Old 06-01-2012, 02:39 AM
  #7  
Droops83
Three Wheelin'
 
Droops83's Avatar
 
Join Date: Feb 2003
Location: Santa Barbara, CA
Posts: 1,665
Received 76 Likes on 64 Posts
Default
These differentials are NOT designed for drag race type launches. Get a Mustang 5.0 for that. We have seen this in 944s with bone stock engines.
Droops83 is offline  
Reply Like

Trending Topics

Old 06-01-2012, 02:42 AM
  #8  
lart951
Basic Sponsor
Rennlist
Site Sponsor
Thread Starter
 
lart951's Avatar
 
Join Date: Dec 2002
Location: California
Posts: 14,436
Received 88 Likes on 51 Posts
Default
Originally Posted by blown 944
Do you just side step the pedal? If so that is the problem. I modulate it about 50% for a few feet then let it hp

the car has a spec IV clutch and pp and it shatters a lot very difficult to modulate, I have not been able to master it, yes when it grabs it grabs, well here is the story my nephew bought a evo-x and gave me a ride, he show me the way he launches gas pedal all the way down and kaboom release the clutch, well you guys can imagine what happened after I tried something similar on the 951
lart951 is offline  
Reply Like
Old 06-01-2012, 02:45 AM
  #9  
lart951
Basic Sponsor
Rennlist
Site Sponsor
Thread Starter
 
lart951's Avatar
 
Join Date: Dec 2002
Location: California
Posts: 14,436
Received 88 Likes on 51 Posts
Default
Originally Posted by Droops83
These differentials are NOT designed for drag race type launches. Get a Mustang 5.0 for that. We have seen this in 944s with bone stock engines.
well it wasn't a drag race it was a test that went bad.
lart951 is offline  
Reply Like
Old 06-01-2012, 02:47 AM
  #10  
Rogue_Ant
Addict
Rennlist Member
Rennlist
Small Business Partner
 
Rogue_Ant's Avatar
 
Join Date: May 2006
Location: Denver
Posts: 5,252
Likes: 0
Received 4 Likes on 4 Posts
Default
Side-stepping the clutch is just asking to break things... regardless of the car. Learning to pre-load will take the slack out of the drivetrain and help keep things from shattering.
Rogue_Ant is offline  
Reply Like
Old 06-01-2012, 08:48 AM
  #11  
Bri Bro
Addict
Rennlist Member
 
Bri Bro's Avatar
 
Join Date: Feb 2002
Posts: 5,384
Likes: 0
Received 0 Likes on 0 Posts
Default
Evo never break, just tell him to keep hammering it.

You should take it to a Dyno so you can safely run up the car.

Like the shot at 4:50 were the car jumps off the rollers even with two guys sitting in the trunk. Next shot, two BIG guys sitting in the trunk.
Bri Bro is offline  
Reply Like
Old 06-01-2012, 09:21 AM
  #12  
john durdin
Advanced
 
john durdin's Avatar
 
Join Date: Jul 2009
Location: Ottawa canada
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Default
Lart you should know better !
john durdin is offline  
Reply Like
Old 06-01-2012, 09:55 AM
  #13  
Willard Bridgham 3
Addict
Rennlist Member
 
Willard Bridgham 3's Avatar
 
Join Date: May 2001
Location: Parral, Chihuahua, Mejico
Posts: 929
Likes: 0
Received 4 Likes on 4 Posts
Default
No accountin' for fools........
Willard Bridgham 3 is offline  
Reply Like
Old 06-01-2012, 10:01 AM
  #14  
86 951 Driver
Race Car
 
86 951 Driver's Avatar
 
Join Date: Oct 2002
Location: KC, MO
Posts: 3,638
Likes: 0
Received 1 Like on 1 Post
Default
I'm guessing that isn't just a axle?

How should you launch a 951 at the drag strip?
86 951 Driver is offline  
Reply Like
Old 06-01-2012, 10:48 AM
  #15  
lart951
Basic Sponsor
Rennlist
Site Sponsor
Thread Starter
 
lart951's Avatar
 
Join Date: Dec 2002
Location: California
Posts: 14,436
Received 88 Likes on 51 Posts
Default
well, I need a new differential does anybody have one for sale?
lart951 is offline  
Reply Like



Advanced Search
Quick Reply: new tires+21 psi of boost+ hard launch, what do you get?


Reply Closed Thread Share
Forum Jump

All times are GMT -3. The time now is 11:29 AM.