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How fast are Z28s?

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Old Oct 9, 2003 | 03:42 PM
  #16  
dist0rtion_69's Avatar
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My LS1 ran 13.25 @ 106 stock. However, some have been as low as 12.8. The fastest one I've ever seen in person ran around 13.0 @ 109. However, when it comes to boltons, there is a top 50 list of bolton LS1s in the 11's on Ls1tech.com So its hard to judge bolton ls1 vs. anything. I believe the lowest runs 11.20's. No spray, No nothing.. just boltons, slicks, big verters/good clutches, and weight reduction. Bolton covers a wide range of timeslips. It sounds like the one you raced had maybe a lid and a catback. Any other mods would have more than likely put the race in his favor.

In reponse to your question about the 2003 Cobra. If the cobra is properly driven, it should be able to beat any stock LS1 that there is. A full bolton 350rwhp m6 camaro (longtubes, etc.) would probably be a good race for and might could edge out a stock Cobra pretty nicely. However, due to the fact not everyone is a pro stock driver, you will on occasion see stock and lightly modded ls1s running with or beating a 2003 Cobra. This is not the norm, as the 2003 cobra traps a good 5mph higher than most LS1's! Very nice ride, BTW.

Last edited by dist0rtion_69; Oct 9, 2003 at 03:50 PM.
Old Oct 9, 2003 | 03:43 PM
  #17  
5ohCOUPE---LS1's Avatar
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OK, heres what ive seen. My STOCK A4 98 Z28 ran a 13.62 @ 104 with 2.73 gears. And I mean BONE stock. I just saw a new BONE stock 5 speed Mach1 run a best of 13.92 @ 102. Both of the above times were on radials. I ran this same Mach1 on the way home from the track and I pulled him by about 3 cars from a 40 MPH roll to 110. From a stop, same outcome. Also my friends STOCK 2003 Cobra has run a best of 12.65 @ 115!!!!! That would be on a 40 degree night with the stock radials. He put on X-pipe and Borla cat back, and a cold air kit and ran a best of 12.01 @ 117!! with the radials.

Last edited by 5ohCOUPE---LS1; Oct 9, 2003 at 03:47 PM.
Old Oct 9, 2003 | 04:46 PM
  #18  
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Ditto .. I beat a brand new/still paper plates Mach 1 the finals last week and he was sitting on a 13.95 dial-in all night ... brand new and it wouldn't stay in gear and he ran a 14.65 in the final ...
Old Oct 9, 2003 | 07:13 PM
  #19  
ChrisLS1Bird's Avatar
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Originally posted by 350 HRSS
WHAT were your bolt ons???? I have to know what put you at
360 rwhp.

REALLY want to hear this.

And btw, I read a link at Mustangs and Fast Fords that the Mustang is actually around 200 lbs heavier than a Camaro.

Check that out, but I would almost bet $ on it.
You were probably reading about the '03 Cobra. That's a heavy car.

360 rwhp is not out of the question for a bolt-on M6. (I noticed that you have an auto.) The simple combination is intake/exhaust/long tubes with off-road pipe/ls6 intake manifold (if the car's not an '01+)/underdrive pulley.
Old Oct 9, 2003 | 10:28 PM
  #20  
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Re: How fast are Z28s?

Originally posted by BlueMach1
Just curious, but how much HP/TQ would a Z28 with basic bolt ons be putting out? What would it be running in the 1/4 mile?

Thanks!
the top 50 fastest bolt on only ls1's are all running under 11.99 if that helps

lata
Bill
Old Oct 10, 2003 | 12:25 AM
  #21  
V6toZ28's Avatar
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Re: Re: How fast are Z28s?

Originally posted by foff667
the top 50 fastest bolt on only ls1's are all running under 11.99 if that helps

lata
Bill
And most of them have a raceweight under 3300 and ran the times in negative D/As ...
Old Oct 10, 2003 | 03:58 AM
  #22  
AL SS590 M6's Avatar
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Re: Re: Re: How fast are Z28s?

Originally posted by V6toZ28
And most of them have a raceweight under 3300 and ran the times in negative D/As ...
Well how's this? At the track Wed. for T&T.
700' elevation, 80°. 30.25 baro, 53% humidity.
Car in sig. raceweight 3550 lbs.
1.66 sixty 12.300 @ 110 mph.

Stock MAF
Stock throttle body
Stock LS1 intake
Stock LS1 motor
Stock cast iron manifolds
Old Oct 10, 2003 | 09:51 AM
  #23  
350 HRSS's Avatar
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Re: Re: Re: Re: How fast are Z28s?

Originally posted by AL SS590 M6
Well how's this? At the track Wed. for T&T.
700' elevation, 80°. 30.25 baro, 53% humidity.
Car in sig. raceweight 3550 lbs.
1.66 sixty 12.300 @ 110 mph.

Stock MAF
Stock throttle body
Stock LS1 intake
Stock LS1 motor
Stock cast iron manifolds
NICE!

Old Oct 10, 2003 | 11:38 AM
  #24  
V6toZ28's Avatar
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Re: Re: Re: Re: How fast are Z28s?

Originally posted by AL SS590 M6
Well how's this? At the track Wed. for T&T.
700' elevation, 80°. 30.25 baro, 53% humidity.
Car in sig. raceweight 3550 lbs.
1.66 sixty 12.300 @ 110 mph.

Stock MAF
Stock throttle body
Stock LS1 intake
Stock LS1 motor
Stock cast iron manifolds
I suspect he was referring to the LS1tech list ... and I stand by my statement, most of the cars on that list breaking 11.99 bolt on were running low race weights and/or in negative D/As

Heck ... I didn't say we couldn't run low 12s with bolt ons consistently ... I ran my own 12.12 bolt on in a plus 1400 D/A and with a 3675 lb raceweight ... and it ran 12.2/12.3 all summer on a 3750 raceweight ... I fully expected to hit 11s bolt on myself that winter, when our D/As drop to around -100 or better ... but alas I washed out a ring and went ahead and did H/C while it was down ...
Old Oct 10, 2003 | 04:01 PM
  #25  
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my 98 Z with bolt ons only went 12.33 on a drag radial with a raceweight of 3540 lbs...that was also WITH the front sway bar, air filter and back seats that i usually take out at the track.....also i have no LS6 intake ... it was around 60 degrees (GOOD AIR)

i doubt ill be able to do it but do u think i have any chance at an 11.99 in really cold, dry air with no front sway bar, no back seats, no airfilter and some borrowed ET drags???? if not would an LS6 intake be able to do it???
Old Oct 10, 2003 | 05:45 PM
  #26  
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Originally posted by MistaCamawo
I'm guessing you have a new mach 1 and are going to race a ls1 sometime in the future. If you run one from a dig you should do fine but I think from a roll it would pull on you. It wouldn't be uncommon for a bolt-ons ls1 to get 320 or so hp at the wheels.
A z28 will bash a mach 1 no matter if they go from a dead stop to a 10 punch, to a 50 punch. Mustang just can't hang!!!
Old Oct 10, 2003 | 05:49 PM
  #27  
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Originally posted by Mikie
Just to let you know...

Im not going by magazine weights on this.
Ive owned one 01 GT that weighed in at 3125 with 1/4 tank of gas and no driver. This was done at the local DMV scales 2 miles from my house.
I may be wrong and you guys may be right on the weight.
My GT did not weigh any where near 3300 lbs.
My GT bone stock ran back to back to back consistant 13.90 flat runs at 100 mph in the 1/4 with only 260hp too.
I owned an LT1 TA (97) that ran consistant 13.90s to 14.00 at around the same mph so you tell me how the GT is just as quick in the ET department with a LT1 making 25 more hp?

Right now my LS1 TA weighed in at 3342 on the same scales.
Granted thats not a 300 lb difference so I admit that me saying 300 lbs may be a little much.
Maybe you had a miracle mustang!!
Old Oct 10, 2003 | 08:59 PM
  #28  
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Originally posted by 94ZRiCeKiLr
i doubt ill be able to do it but do u think i have any chance at an 11.99 in really cold, dry air with no front sway bar, no back seats, no airfilter and some borrowed ET drags???? if not would an LS6 intake be able to do it???

It's possible. I think your ET is about maxed out with that trap speed so you'd have to either drop some weight or add some power (or a little of both). Obvioulsy, cutting a better short time will drop your ET too but a 1.70 is already pretty damn good so I dunno how much lower you can get that.

I guess with a little better 60' along with some weight reduction and a few ponies from cooler/better air, you might just might get there.
Old Oct 10, 2003 | 10:27 PM
  #29  
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you can bring up all the street races you want but its obvious ls1s are faster than mach 1s with both being stock.


worthy competitor?yes.make a mistake and you could lose.
Old Oct 10, 2003 | 10:41 PM
  #30  
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i was thinking i need more power too but at the same time i was only leaving at around 1500 rpm with the drag radials....a nice HARD launch on slicks might help along with ditching my 40 pound ZR1s....pulling the sway bar, pulling the air filter, pulling out back seats and huge 275 front tires, tuning my shift points (stock right now), getting some GOOD air and prayin.....anybody think i got a shot????



i know i could just drop a cam in and do it but i WANT to have an 11 second ls1 with a STOCK motor.... (and no spray of course )

all i want is an 11.99!!!

any input on other ways i could get there (again no spray lol)....please share???



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