Street Racing & Kill Stories Basic Technical Questions & Advice

Mach at the track

Thread Tools
 
Search this Thread
 
Old 05-29-2013, 09:28 PM
  #3581  
TECH Apprentice
iTrader: (2)
 
GtoSpd's Avatar
 
Join Date: Mar 2007
Location: Raleigh, NC
Posts: 369
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by adamantium
Get something spec'd out. I never knew LSA efffected P2V clearances, i could've sworn it was duration more than anything.
I'm no cam tech, still reading a lot and trying to fully understand it all, but from I understand, lobe separation angle is where valve clearance becomes in issue on milled heads. I could easily be off on that, but either way its my tuner that eventually suggested this grind for my car. I think he knows why it a good cam for my set-up, but doesn't always feel like spelling it out to people like me, lol. I told him I wanted less valvetrain noise and more power without restalling, changing my springs again, etc. This is the one he suggested.
GtoSpd is offline  
Old 05-29-2013, 09:35 PM
  #3582  
TECH Fanatic
iTrader: (9)
 
Guitar's Avatar
 
Join Date: May 2011
Location: NC
Posts: 1,925
Likes: 0
Received 3 Likes on 3 Posts

Default

Originally Posted by GtoSpd
Do you work near Raleigh? Might be able to catch up with you when I get off work. After 5pm..

Ohhh, I was thinking you had 28" tires. You're right, the 26s are right where you need to be. Too bad you can't slip the clutch versus dumping and bogging. Only other thing you could do is drive straight thru the water box and do a very light burn out, without using the brake type of burnout so the tires don't dead hook. Not really sure if that would help or not, but it might.
Yeah I work in Morrisville. I'm not sure what will help besides seat time and lots of trial and error - that's why I'm going to Benson. 1/8ths are lame IMO but I'm just going to practice launching.
Guitar is offline  
Old 05-29-2013, 09:39 PM
  #3583  
Banned
iTrader: (3)
 
adamantium's Avatar
 
Join Date: Sep 2011
Location: From the abyss
Posts: 940
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by GtoSpd
I'm no cam tech, still reading a lot and trying to fully understand it all, but from I understand, lobe separation angle is where valve clearance becomes in issue on milled heads. I could easily be off on that, but either way its my tuner that eventually suggested this grind for my car. I think he knows why it a good cam for my set-up, but doesn't always feel like spelling it out to people like me, lol. I told him I wanted less valvetrain noise and more power without restalling, changing my springs again, etc. This is the one he suggested.
Id give it a try and see what it does. It would be cool to pick up a MPH get you in the 120 mph traps.
adamantium is offline  
Old 05-29-2013, 10:20 PM
  #3584  
On The Tree
iTrader: (5)
 
Jay z28's Avatar
 
Join Date: Oct 2007
Location: Utah
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Stopsign32v
I pulled a 1.9 60' on a set of 255 Firestone all season tires on stock 99 Cobra wheels with the IRS in the rear leaving @ 2,500rpms.
I pull 1.9's leaving at idle.
Jay z28 is offline  
Old 05-29-2013, 10:20 PM
  #3585  
TECH Apprentice
iTrader: (2)
 
GtoSpd's Avatar
 
Join Date: Mar 2007
Location: Raleigh, NC
Posts: 369
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Guitar
Yeah I work in Morrisville. I'm not sure what will help besides seat time and lots of trial and error - that's why I'm going to Benson. 1/8ths are lame IMO but I'm just going to practice launching.
10-4. I work right off 440 just past Capital, off the Yonkers exit. I should be off work around 5 hopefully. Traffic is going to be insane that time of day though, so it maybe better to shoot for a weekend or later time of day sometime.

You'll get it figured out. Every car is different, so all if us sitting here telling you to do this and it should run that is kind of silly considering none of us have so much as sat in your car. Just keep practicing and you'll pull some 11s out of it.

Originally Posted by adamantium
Id give it a try and see what it does. It would be cool to pick up a MPH get you in the 120 mph traps.
I back and forth on it. Realistically looking at 2 tenths and 2 mph. Not sure if its worth the money to do it. Talking $400 for the cam, and several hundred for labor and retune on the dyno. Would be a nice gain and also nice to get rid of the sewing machine under my hood.
GtoSpd is offline  
Old 05-29-2013, 10:22 PM
  #3586  
TECH Apprentice
iTrader: (2)
 
GtoSpd's Avatar
 
Join Date: Mar 2007
Location: Raleigh, NC
Posts: 369
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Jay z28
I pull 1.9's leaving at idle.
1.6s and 1.7s here leaving at idle

GtoSpd is offline  
Old 05-29-2013, 11:58 PM
  #3587  
12 Second Club
iTrader: (3)
 
S8ER95Z's Avatar
 
Join Date: Feb 2004
Location: NC
Posts: 1,465
Received 51 Likes on 37 Posts

Default

Originally Posted by Stopsign32v
I pulled a 1.9 60' on a set of 255 Firestone all season tires on stock 99 Cobra wheels with the IRS in the rear leaving @ 2,500rpms.
Yeah the wife pulled 1.9 60fts on the stock 245 RSAs... I run 2.0-2.1s... It's never going to result in record breaking runs... But you can still pull some decent times out of the car on street tires.
S8ER95Z is offline  
Old 05-30-2013, 12:35 AM
  #3588  
On The Tree
iTrader: (5)
 
Jay z28's Avatar
 
Join Date: Oct 2007
Location: Utah
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by GtoSpd
1.6s and 1.7s here leaving at idle

Gotta love that stall!

I'm hoping to run in Vegas next Spring, which will cut my DA in half automatically from my home track. Maybe I'll be able to cut a 1.7-1.8 then. I can only hope!
Jay z28 is offline  
Old 05-30-2013, 04:56 AM
  #3589  
TECH Apprentice
iTrader: (2)
 
GtoSpd's Avatar
 
Join Date: Mar 2007
Location: Raleigh, NC
Posts: 369
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Jay z28
Gotta love that stall!

I'm hoping to run in Vegas next Spring, which will cut my DA in half automatically from my home track. Maybe I'll be able to cut a 1.7-1.8 then. I can only hope!
No doubt, stalls are a lot of fun!

What does the DA usually run at your home track? I'm sure there are some 1.7s hiding in that beast.
GtoSpd is offline  
Old 05-30-2013, 08:08 AM
  #3590  
On The Tree
iTrader: (5)
 
Jay z28's Avatar
 
Join Date: Oct 2007
Location: Utah
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by GtoSpd
No doubt, stalls are a lot of fun!

What does the DA usually run at your home track? I'm sure there are some 1.7s hiding in that beast.
Spring time we see 4500+ when the weather is nice and cool. Summer we are lucky to be under 6000+.

I would love to run at a track that is actually at sea level, but the closest ones are like 12 hours away. Vegas is only 7 hours away so that's what I'm shooting for.
Jay z28 is offline  
Old 05-30-2013, 08:34 AM
  #3591  
TECH Fanatic
iTrader: (9)
 
Guitar's Avatar
 
Join Date: May 2011
Location: NC
Posts: 1,925
Likes: 0
Received 3 Likes on 3 Posts

Default

Yep I was thinking about that. Sometime not near rush hour would be better, lol. I'll see if we're doing another meeting anytime soon down here.
Guitar is offline  
Old 05-30-2013, 11:17 AM
  #3592  
Tech Apprentice
Thread Starter
iTrader: (1)
 
Stopsign32v's Avatar
 
Join Date: Dec 2006
Posts: 191
Received 0 Likes on 0 Posts

Default

Originally Posted by Jay z28
I pull 1.9's leaving at idle.
Give me a break! I was only 17

But didn't someone say it takes YEARS to be able to run good at the track? Aaaaahahahahah
Stopsign32v is offline  
Old 05-30-2013, 11:21 AM
  #3593  
TECH Fanatic
iTrader: (6)
 
evangto87's Avatar
 
Join Date: Dec 2007
Posts: 1,007
Likes: 0
Received 0 Likes on 0 Posts
Default

tough crowd...
evangto87 is offline  
Old 05-31-2013, 01:28 AM
  #3594  
***Repost Police***
 
Irunelevens's Avatar
 
Join Date: Dec 2005
Location: DFW, TX
Posts: 2,480
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Stopsign32v
Give me a break! I was only 17

But didn't someone say it takes YEARS to be able to run good at the track? Aaaaahahahahah
To be fair it wasn't a 300rwhp+ car, but I ran a record/near record time (depending on where you look) in the 1/4 in my '94 Integra when I was 17.
Irunelevens is offline  
Old 05-31-2013, 08:48 AM
  #3595  
TECH Fanatic
iTrader: (9)
 
Guitar's Avatar
 
Join Date: May 2011
Location: NC
Posts: 1,925
Likes: 0
Received 3 Likes on 3 Posts

Default

I think my diff is fucked. May need new clutches. May be part of the launching problem. One tire likes to spin the other doesn't. Never buying a used big ticket item like this again - way too much of a hassle and no money saved.
Guitar is offline  
Old 05-31-2013, 09:00 AM
  #3596  
12 Second Club
iTrader: (3)
 
S8ER95Z's Avatar
 
Join Date: Feb 2004
Location: NC
Posts: 1,465
Received 51 Likes on 37 Posts

Default

Live and learn on that stuff.. I did a lot of used parts on my lt1 car and even that boat anchor managed to break most of it. Sorry to hear about your problem man.
S8ER95Z is offline  
Old 05-31-2013, 09:10 AM
  #3597  
10 Second Club
 
big hammer's Avatar
 
Join Date: May 2009
Location: over dere
Posts: 3,427
Received 158 Likes on 108 Posts

Default

a cheap man pays 1\2 price twice.
big hammer is offline  
Old 05-31-2013, 09:26 AM
  #3598  
TECH Enthusiast
iTrader: (6)
 
Raoul-Duke's Avatar
 
Join Date: Apr 2011
Location: South Chicago
Posts: 658
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Guitar
I think my diff is fucked. May need new clutches. May be part of the launching problem. One tire likes to spin the other doesn't. Never buying a used big ticket item like this again - way too much of a hassle and no money saved.
Posi could be shot. Do you have a spool?
Raoul-Duke is offline  
Old 05-31-2013, 09:34 AM
  #3599  
TECH Fanatic
iTrader: (9)
 
Guitar's Avatar
 
Join Date: May 2011
Location: NC
Posts: 1,925
Likes: 0
Received 3 Likes on 3 Posts

Default

It's a Ford posi. That's what I mean, it probably needs clutches or something. I'm going to put a Treutrac in it probably.
Guitar is offline  
Old 05-31-2013, 10:09 AM
  #3600  
Teching In
 
MACHXLR8's Avatar
 
Join Date: Dec 2006
Location: North Carolina
Posts: 1
Received 2 Likes on 2 Posts

Default

Originally Posted by Guitar
I think my diff is fucked. May need new clutches. May be part of the launching problem. One tire likes to spin the other doesn't. Never buying a used big ticket item like this again - way too much of a hassle and no money saved.
Sorry about the rear diff, man! I know you just did all that work.

I took a ride to the track last night and caught one of your runs. I saw the same thing last night that I saw at Feyetteville on Sunday. One tire spinning the other does nothing. Should have videoed the launch with focus on the rear. Maybe you could see what is going on.
When I built my rear I not only put in Moser 31 Spline axles but I also changed out the posi unit to a Ford Racing one. Just tried to eliminate any weak points. Did not want to take any chances after seeing the results of a broken axle off a light at the track. Car turned sideways and hit the wall.
MACHXLR8 is offline  


Quick Reply: Mach at the track



All times are GMT -5. The time now is 07:12 AM.