Street Racing & Kill Stories Basic Technical Questions & Advice

I am confused....

Thread Tools
 
Search this Thread
 
Old May 11, 2004 | 12:43 PM
  #1  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default I am confused....

I thought F-Body's were suppose to be heavy boats, but it comes to find out, my Mach is heavier.... I have a good friend with an LS1, he put down 315/330 before his full exhaust, and has not dyno'd it since then. I put down 305/321, and when we run, he is usually about 1 car ahead, sometimes less, and sometimes I pull him. So we are really close when we run, but if he was making more power than me, even before his exhaust, which now he is making a good bit more power, why isnt he just walking away from me? How an I able to stay with him, and sometimes pull him? He has more power, and weighs less..... we are probably equal drivers... I just dont get it, any ideas?
Reply
Old May 11, 2004 | 12:49 PM
  #2  
SouthFL.02.SS's Avatar
!LS1 11 Second Club
 
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Default

Gearing?
Mach's are running really strong for their advertised horsepower.
Reply
Old May 11, 2004 | 01:40 PM
  #3  
Vendetta's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Jun 2003
Posts: 9,339
Likes: 3
From: NYC metro area
Default

F-Bodys weigh around 3400-3500 lbs from the factory... I don't know about the Machs but I know the Cobras weigh right around 3800-3900 lbs. When I got my LT1 weighed I hit just over 3500 with everything in there, so the LS1 probably weighs a little bit less due to the lighter motor.
Reply
Old May 11, 2004 | 01:40 PM
  #4  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by SouthFL.02.SS
Gearing?
Mach's are running really strong for their advertised horsepower.
I have 3.55's to his 3.42's?? I also have 1k more to pull, so we shift around the same time. I always thought he wieghed more than me, and thats why I could hang with him, even though he has about 40 more hp and tq than me.
Reply
Old May 11, 2004 | 01:41 PM
  #5  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by enisguy
F-Bodys weigh around 3400-3500 lbs from the factory... I don't know about the Machs but I know the Cobras weigh right around 3800-3900 lbs. When I got my LT1 weighed I hit just over 3500 with everything in there, so the LS1 probably weighs a little bit less due to the lighter motor.
I weighed in at 3570 with me and half a tank, he said he weighs in at like 3490 with him and half a tank. My car ( and myself ) need a diet
Reply
Old May 11, 2004 | 01:42 PM
  #6  
Vendetta's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Jun 2003
Posts: 9,339
Likes: 3
From: NYC metro area
Default

Another thing to think about is where the power is in the RPM range. LS1s are very much top-end oriented motors, and the mod motor in the Mach 1s are very good lowend cars (they're actually more my style than LS1s are ).
Reply
Old May 11, 2004 | 01:43 PM
  #7  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by enisguy
Another thing to think about is where the power is in the RPM range. LS1s are very much top-end oriented motors, and the mod motor in the Mach 1s are very good lowend cars (they're actually more my style than LS1s are ).
I have thought about that, and we always run to about 120 or so, from 40-120, or 60-120, usually he pulls me about a car, by 120, sometimes I pull him though.
Reply
Old May 11, 2004 | 01:48 PM
  #8  
Vendetta's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Jun 2003
Posts: 9,339
Likes: 3
From: NYC metro area
Default

Originally Posted by WhiteTXMach
I have thought about that, and we always run to about 120 or so, from 40-120, or 60-120, usually he pulls me about a car, by 120, sometimes I pull him though.
I have no idea then... you should compare graphs and see who's got more average horsepower. Sounds like you guys have some fun races though
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old May 11, 2004 | 01:55 PM
  #9  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by enisguy
I have no idea then... you should compare graphs and see who's got more average horsepower. Sounds like you guys have some fun races though
We sure do
Reply
Old May 11, 2004 | 03:55 PM
  #10  
Dal1as's Avatar
TECH Fanatic
 
Joined: Nov 2003
Posts: 1,241
Likes: 0
From: MD
Default

Originally Posted by WhiteTXMach
I thought F-Body's were suppose to be heavy boats, but it comes to find out, my Mach is heavier.... I have a good friend with an LS1, he put down 315/330 before his full exhaust, and has not dyno'd it since then. I put down 305/321, and when we run, he is usually about 1 car ahead, sometimes less, and sometimes I pull him. So we are really close when we run, but if he was making more power than me, even before his exhaust, which now he is making a good bit more power, why isnt he just walking away from me? How an I able to stay with him, and sometimes pull him? He has more power, and weighs less..... we are probably equal drivers... I just dont get it, any ideas?

Did he also get LT's? If so he might not have gained much unless he was tuned. I'm guessing he just got a catback which could have him up another 5 to 15 hp and about the same in torque. The weight difference between the 2 cars is minimal. I have no clue how a car with lower hp, similiar gearing, which weighs the same can keep up?
Reply
Old May 11, 2004 | 04:51 PM
  #11  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by Dal1as
Did he also get LT's? If so he might not have gained much unless he was tuned. I'm guessing he just got a catback which could have him up another 5 to 15 hp and about the same in torque. The weight difference between the 2 cars is minimal. I have no clue how a car with lower hp, similiar gearing, which weighs the same can keep up?
He got longtubes, O/R Ypipe, and catback.
Reply
Old May 11, 2004 | 05:05 PM
  #12  
unit213's Avatar
Administrator
20 Year Member
 
Joined: Jan 2002
Posts: 45,841
Likes: 5
From: Earth
Default

Jon - My Cobra weighs 3,680lbs without me in it. Not too bad. Not too good either though when my big *** gets in. I should have my g/f start racing people. That around 125lbs saved.

My Z28 weighed 3,400lbs. 3,650lbs with me in it.
Reply
Old May 11, 2004 | 05:17 PM
  #13  
King02SS's Avatar
TECH Fanatic
 
Joined: Oct 2002
Posts: 1,249
Likes: 0
From: Edmond, OK
Default

Originally Posted by WhiteTXMach
He got longtubes, O/R Ypipe, and catback.
I dunno about him but I think my longtubes without a tune hurt me on the bottom end. I still have the stock convertor though, so that doesn't help much either.
Reply
Old May 11, 2004 | 05:21 PM
  #14  
Dal1as's Avatar
TECH Fanatic
 
Joined: Nov 2003
Posts: 1,241
Likes: 0
From: MD
Default

Originally Posted by WhiteTXMach
He got longtubes, O/R Ypipe, and catback.
Then something is wrong with his car or it needs tuned. He should be at around 350 or so hp and 370 pounds of torque. Close to what I'm running and I've raced Mach 1's on 4 different occasions and in each case I pulled them... Hard! 1 even got the jump on me but I blew right by him. Maybe he's trying to race you in 3rd or something. 2nd is good starting gear for a 3.42 geared LS-1 from a roll. My guess is that your friend needs to pick another gear or get his car tuned and checked out.
Reply
Old May 11, 2004 | 05:35 PM
  #15  
Vendetta's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Jun 2003
Posts: 9,339
Likes: 3
From: NYC metro area
Default

Originally Posted by unit213
Jon - My Cobra weighs 3,680lbs without me in it. Not too bad. Not too good either though when my big *** gets in. I should have my g/f start racing people. That around 125lbs saved.
That's not nearly as bad as people say. But how much of that weight is the huge DOHC mod motor ? We just finished up a headswap on my friend's 98 GT- it was only an SOHC but I was still shocked at how big the block actually is.
Reply
Old May 11, 2004 | 05:43 PM
  #16  
unit213's Avatar
Administrator
20 Year Member
 
Joined: Jan 2002
Posts: 45,841
Likes: 5
From: Earth
Default

Originally Posted by enisguy
That's not nearly as bad as people say. But how much of that weight is the huge DOHC mod motor ? We just finished up a headswap on my friend's 98 GT- it was only an SOHC but I was still shocked at how big the block actually is.
The heads are friggin' huge! Not to mention an IRON block. It doesn't seem all that nose heavy though. You know it is though since it takes around 450rwhp to run high 11's. There are guys here running 10's with that much power.
Reply
Old May 11, 2004 | 06:29 PM
  #17  
1gen's Avatar
TECH Junkie
iTrader: (1)
 
Joined: Apr 2003
Posts: 3,574
Likes: 0
From: dfw, TX
Default

maybe he just sucks at shifting?
Reply
Old May 11, 2004 | 07:04 PM
  #18  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by Dal1as
Then something is wrong with his car or it needs tuned. He should be at around 350 or so hp and 370 pounds of torque. Close to what I'm running and I've raced Mach 1's on 4 different occasions and in each case I pulled them... Hard! 1 even got the jump on me but I blew right by him. Maybe he's trying to race you in 3rd or something. 2nd is good starting gear for a 3.42 geared LS-1 from a roll. My guess is that your friend needs to pick another gear or get his car tuned and checked out.
He went 13.3 @ 109 on his setup, and from a 3rd gear roll I pull him, 2nd gear roll he pulls me. We havent gone from a stop, but I am sure I would pull him pretty good with us both on factory tire.
Reply
Old May 11, 2004 | 07:04 PM
  #19  
1gen's Avatar
TECH Junkie
iTrader: (1)
 
Joined: Apr 2003
Posts: 3,574
Likes: 0
From: dfw, TX
Default

he sounds like he sucks at shifting if he hasnt figured out that 2nd would be better....
Reply
Old May 11, 2004 | 07:06 PM
  #20  
WhiteTXMach's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2004
Posts: 140
Likes: 0
Default

Originally Posted by 1genCamaro
he sounds like he sucks at shifting if he hasnt figured out that 2nd would be better....
Of course 2nd would be better for him, but we like to switch it up, go from different power spots for both cars. Gives us a better idea how our cars match up overall, not just peak vs peak.
Reply



All times are GMT -5. The time now is 08:05 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE