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Old 06-03-2014, 11:49 PM   #29
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First modified z/28

Hey Guys, I was surfing davenports website when I came across this



Sounds great!....just thought I would share.
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Old 06-04-2014, 01:04 AM   #30
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How would a stock Z/28 do against a stock ZL1 in the quarter mile? Anyone have any idea which would have the edge.
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Old 06-04-2014, 01:11 AM   #31
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How would a stock Z/28 do against a stock ZL1 in the quarter mile? Anyone have any idea which would have the edge.
ZL1 would kill it.
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Old 06-04-2014, 04:03 AM   #32
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ZL1 would kill it.
You think so? Advertised 1/4 times are damn near identical.
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Old 06-04-2014, 06:38 AM   #33
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Awesome!
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Old 06-04-2014, 07:06 AM   #34
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Quote:
Originally Posted by fradaj View Post
How would a stock Z/28 do against a stock ZL1 in the quarter mile? Anyone have any idea which would have the edge.
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Originally Posted by Comrando View Post
That's a silly question.

Those cars are built for race tracks.
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Originally Posted by axis View Post
You think so? Advertised 1/4 times are damn near identical.
believe it or not.....the ZL1 has the advantage, I talked to the guys at CFEST at length, and they said "HANDS DOWN THE ZL1 in a drag race, but as soon as you put a turn or corner on the road, the Z28 will cook a ZL1. After all, the Z28 was MADE for a road course"

So I gotta believe them.....after all, they know what they are talking about
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Old 06-04-2014, 07:19 AM   #35
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How much is left on that motor in NA form, meaning how much can be gotten out of a LS7 in N/A form...reliably? I like the mods done, great combo.
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Old 06-04-2014, 07:25 AM   #36
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Quote:
Originally Posted by fradaj View Post
How would a stock Z/28 do against a stock ZL1 in the quarter mile? Anyone have any idea which would have the edge.
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Originally Posted by axis View Post
You think so? Advertised 1/4 times are damn near identical.
The Z/28 is NOT a 1/4 mile car. It is set-up for road racing. Check the 1/4 mile fast times for ZL1's on here. Some members have run 11.7's BONE STOCK. The fastest magazine test 1/4 for the Z/28 I have seen is 12.3.
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Old 06-04-2014, 07:35 AM   #37
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it's like asking "How would a COPO do against a ZL1 in the 1/4 mile". One is made for one thing, and it does that one thing better than anyone else.
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Old 06-04-2014, 08:47 AM   #38
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Originally Posted by Spoolin View Post
How much is left on that motor in NA form, meaning how much can be gotten out of a LS7 in N/A form...reliably? I like the mods done, great combo.
There are bigger camshafts I suppose, you can raise the compression, we have had these motors up to 580 plus at the wheels, but drivability is not the best, we felt this is a package you can drive everyday, and still track the car with all the reliability of the stock engine.

We did upgrade the exhaust valves since there is a lot of concern about the two piece exhaust valves, so we upgraded to a Manley severe duty Inconel valve
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Old 06-04-2014, 08:50 AM   #39
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Originally Posted by LT4SS1997 View Post
Very nice numbers Steve. When I heard your car at your shop a week ago it sounded great and now it sounds unreal. Exhaust made a difference. Do you have any other plans for this car or are you saving the plans for the black car your waiting for? Hell..... I'm still waiting for Southgate to get my Z28. It better be this week!!!!
The headers do NOT fit properly, we sent pictures to ARH of the clearance issues, = although they claim they build them for an LS7 in a Camaro, all they really do is an ls3 header and correct the exhaust port flange.

Being that this motor is a dry sump and has different needs, Nick the owner is trying to find one to build a specific Z-28 set. He is a gem to work with.

The nice thing is that the headers save almost 25 lbs of the manifolds and cats

Last edited by Octaneman; 06-04-2014 at 12:11 PM.
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Old 06-04-2014, 08:53 AM   #40
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Nice numbers, that is a nice build. If you upgrade the CAI i am interested in the stock one.
Sorry, all original parts are going back to the client,
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Old 06-04-2014, 09:33 AM   #41
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Would like to have seen what the Z/28's time was at the Nurburgring in dry conditions. A 7:37 in the rain is absolutely amazing.
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Old 06-04-2014, 09:38 AM   #42
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I'd bet on the Z28 it's lighter!
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