04-13-2012, 12:35 PM | #29 |
CaRaHoLiC
Drives: '12 ZL1,67 Cam,68 Biscayne 427 4 sp Join Date: Aug 2011
Location: B.C. Canada
Posts: 1,701
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How many miles are on the car? Could be some computer hold backs till more miles?
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2012 ZL1
2.55 upper, 10" lower pullies, Innovators west billet hub and sfi balancer, solid blower drive isolator, 50 mm idler kit, full length S/S headers no cats, comp cams custom grind cam, comp roller rocker trunion kit, comp push rods,dual valve springs retainers and locks, Injector dynamics ID850 inectors, Rotofab ZL1 cold air kit, Lingenfelter 160 thermostat, Rotofab intercooler reservoir, stock plugs, LS7 90mm throttle body, GTO clutch reservoir mod, my own custom catch can, Tuning by Jannetty, install by me. |
04-13-2012, 12:36 PM | #30 |
Drives: 2011 Mustang Join Date: Nov 2010
Location: Chicago
Posts: 3
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Did you see those impressive dyno numbers? I don't think its holding anything back power wise.
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Last edited by acrbill; 04-13-2012 at 12:50 PM. |
04-13-2012, 12:36 PM | #31 |
Philippians 4:13
Drives: SLP Supercharged LS3 Join Date: Aug 2009
Location: The Motor City - Michigan
Posts: 2,902
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those dyno number dont seem right for a stock ZL1.
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04-13-2012, 12:37 PM | #32 |
Drives: THE EXORCIST Join Date: May 2009
Location: Sealy, TX
Posts: 388
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Hey guys, the numbers are the numbers. We know how to dyno and test cars down the track and have gone thru this drill a lot in the past 20 years. I even thought that maybe we had some bad fuel but our tuner said that he never saw any knock on the dyno. I am guessing that the power will come up once the motor is broken in. I would expect more like 485 rwhp from a stock ZL1 automatic car.
116 mph was with some heat soak. I would expect to see closer to 120 mph on a cooler day and no heat soak. I will be interested to see what others are able to get. So far these are the numbers we are seeing from a bone stock automatic ZL1. FYI, the car has less than 200 miles on it. We usually see a gain of 15 rwhp from LSA motors once they get past 1500 miles. |
04-13-2012, 12:37 PM | #33 | |
Booooosted.
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Quote:
BUT, it's with 20 inch wheels and DRs. Plus it's just a few times. Might be getting better with the launch. |
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04-13-2012, 12:38 PM | #34 |
Drives: THE EXORCIST Join Date: May 2009
Location: Sealy, TX
Posts: 388
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We ran the car aggressively but probably not on "full kill" as this is a customer's car. I am sure that a pair of MT drag radials would be even quicker.
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04-13-2012, 12:39 PM | #35 |
Drives: 2013 ZL1 Join Date: Oct 2011
Location: tangent or
Posts: 2,984
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some thing has to be wrong with this info.
how does a car with SAE580 hp dyno with 567whp. I think more will come to light. wold like to see another car run same day to see how that track is running. Interenet racer's forget some track days are on the slow side for various reasons. the 60' is not that bad though so baring some kind of issue with the car or just being an off day for that track this is a letdown to some extent. I have always been nervous that the car was too heavy but it should throw down the same times as a CTS-v does.
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04-13-2012, 12:39 PM | #36 | |
Booooosted.
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Those numbers seem HIGH, not low. Stock is 580 at the crank. |
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04-13-2012, 12:40 PM | #37 | |
Philippians 4:13
Drives: SLP Supercharged LS3 Join Date: Aug 2009
Location: The Motor City - Michigan
Posts: 2,902
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Quote:
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04-13-2012, 12:40 PM | #38 |
Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009
Location: Mich
Posts: 4,482
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That sounds about right - mid 12s bone stock in good weather, very low 12's with traction.
I don't see how so many think this is going to be an 11 sec car bone stock. Check the weight. That will take more boost and traction. Stick times with a mediocre driver will really get ugly on stock tires. |
04-13-2012, 12:41 PM | #39 | |
Booooosted.
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Quote:
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04-13-2012, 12:41 PM | #40 |
Drives: 16 Camaro SS, 15 Colorado Join Date: May 2009
Location: Jefferson City, Missouri
Posts: 13,957
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...you mean more like 500rwhp?
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04-13-2012, 12:42 PM | #41 |
Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,408
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If this car really had 560rwhp it would trap a hell of a lot higher than ~116. Must have something to do with the trans ratios etc messing with the dyno. Not sure...but no way it is running like 560rwhp.
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04-13-2012, 12:42 PM | #42 |
CamaroFans.com
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Not sure how RWHP can be more than Crank HP
More like this... |
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Tags |
700hp z28 strip car, zl1 track car |
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