Stock LS1 M6 1/4 mi times
09-03-2004 | 08:47 PM
#46
Registered User
Joined: Oct 2002
Posts: 1,130
From: Kentucky
Re: Stock LS1 M6 1/4 mi times
Originally Posted by Capn Pete
Exactly!
The rev limiter is truly set @ 6200 RPM (the Hypertech can raise or lower it from 6200) but due to the lag in the tach, then when you actually SEE 6200, it's too late, because the motor is ACTUALLY revving higher than that (and thus, the rev limiter is kicking in
). Fine, with an automatic the stock shift points are set at about ~5800 RPM, but if I shift the car manually (before adjusting with the Hypertech) then I could hold the shifts out beyond 6000 RPM
.
And for any dis-believers that a stock LS1 can't do a 12.xxx, maybe I haven't actually seen it either, but I don't doubt it. Look at my 1/4 mile times (with 2.73's or now 4.10's).....the times w/2.73's were on crappy tires, vs. with the 4.10's now, I've got tires that hook really well. SO, the power is getting put to the ground. If my car were an M6, which uses less engine power, then I'd probably be able to get my car to hit a 12.xxx AS LONG AS I COULD SHIFT!
The rev limiter is truly set @ 6200 RPM (the Hypertech can raise or lower it from 6200) but due to the lag in the tach, then when you actually SEE 6200, it's too late, because the motor is ACTUALLY revving higher than that (and thus, the rev limiter is kicking in). Fine, with an automatic the stock shift points are set at about ~5800 RPM, but if I shift the car manually (before adjusting with the Hypertech) then I could hold the shifts out beyond 6000 RPM.And for any dis-believers that a stock LS1 can't do a 12.xxx, maybe I haven't actually seen it either, but I don't doubt it. Look at my 1/4 mile times (with 2.73's or now 4.10's).....the times w/2.73's were on crappy tires, vs. with the 4.10's now, I've got tires that hook really well. SO, the power is getting put to the ground. If my car were an M6, which uses less engine power, then I'd probably be able to get my car to hit a 12.xxx AS LONG AS I COULD SHIFT!
09-06-2004 | 11:44 PM
#47
Moderator
Joined: Jul 1998
Posts: 6,249
From: Charlotte,MI USA
Re: Stock LS1 M6 1/4 mi times
Originally Posted by robb4964
F-Bods Do not go to 6200 RPM stock...Period......I know this for a fact . If your car says " 6200 RPM's" when you wind it up to that , either 1: it has some kind of tuning 2: The RPM gauge is wrong . Find a GM tech site and find out for your self . Thats one reason why people buy hypertech . The stock setting is like 5800 or 5900 Bye default . Just the facts man .
Your source of info is erronious.
09-07-2004 | 10:09 AM
#49
Registered User
Joined: Jun 2003
Posts: 573
From: Just outside of "D-town"
Re: Stock LS1 M6 1/4 mi times
my dads 01 STRIPPER M6 ran a 12.89@109 completly FACTORY including PAPER filter...and stock ****ty tires..
hed hold the rpms at 2,800 and dumped the clutch featherd into it for a half seconds then went to the mat...powershifted 2nd and 3rd..bouned the rev limiter crossing the line...
1.97 60 foot...i ran it later in the day and went 13.06@108.8.
hed hold the rpms at 2,800 and dumped the clutch featherd into it for a half seconds then went to the mat...powershifted 2nd and 3rd..bouned the rev limiter crossing the line...
1.97 60 foot...i ran it later in the day and went 13.06@108.8.
09-07-2004 | 03:09 PM
#50
Registered User
Joined: Nov 2000
Posts: 1,148
From: AZ
Re: Stock LS1 M6 1/4 mi times
Originally Posted by robb4964
Pete...call a Tuner and ask them what the stock parameters are on a LS1 in an F-bod..its not 6200 . Your car will not run that high RPM's stock . Wont do it ! I have seen the stock parameters Myself more then once . IM not going to argue from this point . Find out yourself .
09-09-2004 | 10:41 AM
#51
Registered User
Joined: Jul 2004
Posts: 40
From: Grand Rapids, MI
Re: Stock LS1 M6 1/4 mi times
Originally Posted by robb4964
Well , I can tell ya I have never pulled a 2.0 sixty so yeah...your pulling pretty good sixties. But somethings not right . Could be the clutch . Youd be amazed at how much time you can lose with a crapy clutch. The HP will just slip away .
I ran better last year with my street tires!! The clutch is junk!! My best run of the night was in the high 13.60's! You can feel it giving way on the launch and everytime you hit the next gear really hard! I am going to sell the nitto's now to start the fund for clutch replacement 
09-28-2004 | 10:31 AM
#54
Registered User
Joined: Dec 1999
Posts: 969
From: St. Louis, MO
Re: Stock LS1 M6 1/4 mi times
I managed a 13.08 @ 106 on a 90+ degree day, and did a burnout on street tires. I didn't know any better at the time, and it was fun. Car was bone stock, crappy factory tires, paper filter, and a lot of gas in the tank. Not bad for my first time at the track. I got it down from a 13.42, to a 13.23, 13.10, and finally my 13.08. I'm positive I could have hit 12's in my stock 98, but we'll never know.
09-28-2004 | 10:32 AM
#55
Registered User
Joined: Dec 1999
Posts: 969
From: St. Louis, MO
Re: Stock LS1 M6 1/4 mi times
Originally Posted by Rifleman_btx
13.74@104.42 that was at 35 PSI all the way around. (02 Z28 6 speed) This Friday I'm going to drop the rear pres. to 25 PSI and see if I can get any better.
09-28-2004 | 01:32 PM
#56
Registered User
Joined: Jul 2004
Posts: 46
From: Bastrop Texas
Re: Stock LS1 M6 1/4 mi times
Originally Posted by BirchMan98z
I'd say 18-20psi if you want them to grab a little better. Some people say go lower, but then you risk spinning the tire off the wheel-- and at high speeds, that's bad.
04-12-2005 | 11:55 PM
#58
Registered User
Joined: Oct 2002
Posts: 1,130
From: Kentucky
Re: Stock LS1 M6 1/4 mi times
Originally Posted by Capn Pete
That's crazy, considering mine went 14.008 @ 101 (2.1 60') w/A4 + 2.73's when it was stock (might have had the lid then?
). The only problem was it was very hot and VERY humid when I ran it back then. But still, considering I've got 4.10's now, and I'm still not into the 12's yet!?
(and poor traction isn't a concern whatsoever now).
). The only problem was it was very hot and VERY humid when I ran it back then. But still, considering I've got 4.10's now, and I'm still not into the 12's yet!? (and poor traction isn't a concern whatsoever now).
With nothing more then a few bolt on's on a cold azzz night he ran a 12.6. Stock gears/cam/headers. I seen it.
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