Street Racing & Kill Stories Basic Technical Questions & Advice

Bolt on GTO vs Bolt on 5.0

Thread Tools
 
Search this Thread
 
Old 02-23-2014, 09:31 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default Bolt on GTO vs Bolt on 5.0

2006 GTO (A4)- K&N intake, Fast 102, LT headers, Catless exhaust, Tune.

2011 5.0 (3.31's)- JLT intake, LT Headers, Catless exhaust, Tune.

We ran when we were both basically stock, dead even till 100.

We ran when I was stock && he was intake, tune, exhaust && I got destroyed.

We got 1 run in today, from a 30 roll... He honked, we both take off... I spin thru first && some of second... At around 90+/- he had half car length between our bumpers...

He told me 5 minutes later he started in 2nd gear && it hooked.
Old 02-23-2014, 09:37 PM
  #2  
TECH Fanatic
iTrader: (9)
 
Guitar's Avatar
 
Join Date: May 2011
Location: NC
Posts: 1,930
Likes: 0
Received 3 Likes on 3 Posts

Default

He started in second? No wonder it was that close.
Old 02-23-2014, 09:44 PM
  #3  
TECH Senior Member
iTrader: (2)
 
HCI2000SS's Avatar
 
Join Date: Aug 2012
Location: Howell & Fenton MI
Posts: 11,145
Likes: 0
Received 15 Likes on 15 Posts
Default

Was he pulling or you gaining?
Old 02-23-2014, 10:05 PM
  #4  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah he started in second && dead hooked... I started in first && spun for little after it hit second...

He was steadily pulling but he wasn't walking away by any means, slow pull..
Old 02-23-2014, 10:15 PM
  #5  
Staging Lane
 
Sticks n Stones's Avatar
 
Join Date: Aug 2009
Location: Snohomish, WA
Posts: 65
Likes: 0
Received 1 Like on 1 Post

Default

30mph in 1st in a auto? Ouch, that's a hard spot to run from if you can't dead hook it. Let me guess on how it went: you were holding 1st gear, car spins into rev limiter then since it's already spinning continues to spin in 2nd leaving you a car or so back from where you should be in you had traction. Unfortunately even if you dead hook it, the trans doesn't like doing the 1-2 shift that quickly and normally hits the rev limiter before shifting right?

20mph is your best spot if you can't do a dig, and you HAVE TO get yourself some tires that have enough traction that you can use 1st gear at WOT (assuming a quick roll into WOT and not a stab of the pedal).

I'd highly recommend some better tires first, with a 3200-3600 stall converter as a must have next mod. The tires alone will work, but you can kiss rolling burnouts, or any kind of burnouts goodbye if you don't do a stall converter. With a proper stall converter you will find your car is a whole different beast, nearly as much fun as a stick shift if you like screwing around and it will get rid of the A4's notorious dead spots too.

Ever dreaded running from a 35-40mph start? Hate it when you punch the gas at 72mph and it refuses to drop down to 2nd gear? When you are in the 5-20mph range and you punch it, do you find yourself relying on the initial torque hit to spin the tires a bit so you don't have to wait for the rpms to reach peak torque? All fixed with a 3600 stall converter.







Small Print: a 3600 stall will take a chunk out of your intown gas mileage, and requires a good trans cooler WITH FAN to keep your temps in line. Also makes driving in the rain, umm, "entertaining" if you don't exercise strict throttle control.
Old 02-23-2014, 10:22 PM
  #6  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default

My car actually pulls pretty hard from 30 dropping into first... But yeah it spins hard, shifts into second && continues to spin just as hard (today was warm so during this race it didn't spin as hard as usual in second)...

I planned on a stall but my trans has 111k && I don't think it would stay together even with a big cooler... I'll wait till my trans dies && my warranty pays for a new one.

Picking up a nitrous kit tomorrow.
Old 02-23-2014, 11:01 PM
  #7  
Launching!
iTrader: (3)
 
Blown_Red_97z's Avatar
 
Join Date: Feb 2004
Location: Sin City
Posts: 201
Likes: 0
Received 0 Likes on 0 Posts

Default

Good run but when the trans goes better pull that nitrous kit off if you are going to try warranty
Old 02-23-2014, 11:30 PM
  #8  
TECH Fanatic
iTrader: (55)
 
Mike Morris's Avatar
 
Join Date: Mar 2010
Location: Md/PA/FL
Posts: 1,602
Received 61 Likes on 50 Posts

Default

Speedfreak you coming to OC???
Old 02-23-2014, 11:57 PM
  #9  
TECH Regular
iTrader: (2)
 
OneSlowV's Avatar
 
Join Date: May 2013
Location: East Texas
Posts: 406
Received 218 Likes on 136 Posts
Default

Seems like close runs. I'm shocked he hooked in second i can't get any in second also 3.31s lol. And second from a 40 roll is still strong for a 5.0. But if i could hook i would be in first since i shift around 7500 rpms witch put me over 50 mph in first.
Old 02-24-2014, 12:40 AM
  #10  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah I will be in OC, what's up?

Yeah his car usually lights the tires up even at 50+ rolls... This weekend we had mid 50* weather so the roads were warmer ... If he's in his power band (30mph -first gear) he would have spun hard...
Old 02-24-2014, 07:14 AM
  #11  
10 Second Club
iTrader: (8)
 
HioSSilver's Avatar
 
Join Date: Aug 2002
Location: Winchester, VA
Posts: 5,927
Received 412 Likes on 330 Posts

Default

Good run
Old 02-24-2014, 09:49 AM
  #12  
Staging Lane
 
Sticks n Stones's Avatar
 
Join Date: Aug 2009
Location: Snohomish, WA
Posts: 65
Likes: 0
Received 1 Like on 1 Post

Default

In all honesty, even if both of you hooked perfectly that 5.0 should be walking out at least 3-4 cars on you from a 30-100 roll race. He probably has 60-70rwhp on you, is lighter, and has better gearing due to the 6 speed: you have more midrange torque, true, but it's not enough to overcome all of his advantages.
Old 02-24-2014, 10:27 AM
  #13  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default

I Didn't expect it to be this close either, he's definitely gonna pull me if we both hook in 1st buy I don't think 3-4 cars by 100 is realistic...
Old 02-24-2014, 01:23 PM
  #14  
Staging Lane
 
Sticks n Stones's Avatar
 
Join Date: Aug 2009
Location: Snohomish, WA
Posts: 65
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by SpeedFreak123
I Didn't expect it to be this close either, he's definitely gonna pull me if we both hook in 1st buy I don't think 3-4 cars by 100 is realistic...
His setup should be a high 11's/low 12's at 116-118mph car. That's realistic numbers, not youtube hero numbers. Yours should be a 12.7-12.9 at 108-110mph setup if you both can hook. Your gonna need a cam to reach him if he can drive his car to it's full potential: obviously something is amiss, but I want to be sure that you aren't thinking your car is faster then it is, nor that 5.0's are slower then they are.

Stock for stock a GTO has a chance against a 5.0, but bolton/tune to bolton/tune the 5.0 brings a AR15 to a pistol fight.
Old 02-24-2014, 01:46 PM
  #15  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Sticks n Stones
His setup should be a high 11's/low 12's at 116-118mph car. That's realistic numbers, not youtube hero numbers. Yours should be a 12.7-12.9 at 108-110mph setup if you both can hook. Your gonna need a cam to reach him if he can drive his car to it's full potential: obviously something is amiss, but I want to be sure that you aren't thinking your car is faster then it is, nor that 5.0's are slower then they are.

Stock for stock a GTO has a chance against a 5.0, but bolton/tune to bolton/tune the 5.0 brings a AR15 to a pistol fight.
I know his car is faster than mine, but 3-4 lengths from 30-100 is a little extravagant I think..
Old 02-24-2014, 03:48 PM
  #16  
Staging Lane
 
Sticks n Stones's Avatar
 
Join Date: Aug 2009
Location: Snohomish, WA
Posts: 65
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by SpeedFreak123
I know his car is faster than mine, but 3-4 lengths from 30-100 is a little extravagant I think..
Here's a useful, time honored and proven formula for car lengths: 1 car length = 1 tenth of a sec = 10rwhp = 100lbs = 1mph. That's for a full 1/4 mile run, assuming street cars (11 seconds on up) that have decent traction. For a 30-100mph run figure that you should cut that half which means 3-4 car lengths is generous. BTW his back bumper at your front bumper means he is one car length ahead of you. Alot of guys don't count that, but IMO that's stupid not to count that.
Old 02-24-2014, 04:22 PM
  #17  
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 SpeedFreak123
I know his car is faster than mine, but 3-4 lengths from 30-100 is a little extravagant I think..
Yeah 3-4 lengths from 30-100 is over exaggerated. In for the 5.bro hype!
Old 02-24-2014, 04:38 PM
  #18  
TECH Enthusiast
Thread Starter
iTrader: (17)
 
SpeedFreak123's Avatar
 
Join Date: Mar 2010
Location: Maryland
Posts: 648
Likes: 0
Received 0 Likes on 0 Posts
Default

I considering me being at his back bumper a car length as well... But even with your Formula, I still think 3-4 cars is a bit too much.
Old 02-24-2014, 06:27 PM
  #19  
TECH Addict
iTrader: (6)
 
Johnnystock's Avatar
 
Join Date: Feb 2007
Location: Canada
Posts: 2,675
Received 38 Likes on 25 Posts

Default

Originally Posted by SpeedFreak123
I considering me being at his back bumper a car length as well... But even with your Formula, I still think 3-4 cars is a bit too much.
The cool thing now is that you know by how many cars youll lose next time ... LOL
Old 02-24-2014, 09:31 PM
  #20  
***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 Sticks n Stones
In all honesty, even if both of you hooked perfectly that 5.0 should be walking out at least 3-4 cars on you from a 30-100 roll race. He probably has 60-70rwhp on you, is lighter, and has better gearing due to the 6 speed: you have more midrange torque, true, but it's not enough to overcome all of his advantages.
An LS2 GTO w/ those bolt-ons dynos that low?
Originally Posted by Raoul-Duke
Yeah 3-4 lengths from 30-100 is over exaggerated. In for the 5.bro hype!
You realize he owns an LS2 GTO...right?


Quick Reply: Bolt on GTO vs Bolt on 5.0



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