How fast is a ZZ4 converted C3?
06-26-2002, 03:37 PM
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Re: How fast is a ZZ4 converted C3? (wcsinx)
Gearing also makes a bit of an issue with the ultimate speed on a qtr. mile.
:cheers:
:cheers:
06-26-2002, 04:19 PM
#5
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Re: How fast is a ZZ4 converted C3? (theanswriz42)
Gearing also makes a bit of an issue with the ultimate speed on a qtr. mile.
:cheers:
:cheers:
06-26-2002, 04:20 PM
#6
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Re: How fast is a ZZ4 converted C3? (kgraumann)
Faster than what came in it from the factory! :yesnod:
06-26-2002, 04:49 PM
#7
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Re: How fast is a ZZ4 converted C3? (wcsinx)
I have a stock ZZ4 with 3.36 gears/4-speed and pull a 13.4@106 in the 1/4 (probally do better with more practice only been to the track once). Don't know what my 0-60 time is but it is quick. Its got to be 5 seconds or faster.
John
John
06-26-2002, 05:40 PM
#8
Re: How fast is a ZZ4 converted C3? (wcsinx)
Aww man, don't tease me like that! :) What kind of #'s will yours pull?
06-26-2002, 07:17 PM
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Re: How fast is a ZZ4 converted C3? (wcsinx)
I got 13.806 @ 100.11 mph my first and only time out to the track...I have th350 and 3.08 rear end...but im sure theres more in it, i know my launches and shift points could have been better, i think i can go to the track 1 more time...ill let u know if any improvement...
heres a video of my 13.8 run... http://www.corvetteforum.net/c3/77zz4/mikecody.wmv
heres a video of my 13.8 run... http://www.corvetteforum.net/c3/77zz4/mikecody.wmv
06-27-2002, 10:43 AM
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Re: How fast is a ZZ4 converted C3? (wcsinx)
With the Hot Cam kit, full headers, 4-speed T10 and 3.36 I did the 1/4 mile in 12.98 sec. I think I hit 60 in ~ 4.8 sec according to my friends G-Tech. Traction, weight and suspension setup make alot of difference beyond that of gears so you will probably see a wide array of times.
[Modified by dshrack, 8:45 AM 6/27/2002]
[Modified by dshrack, 8:45 AM 6/27/2002]
06-30-2002, 12:47 PM
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Re: How fast is a ZZ4 converted C3? (Mack76)
I think Mike69 turned a mid-to-low 13's with a four speed and 3.36 gears.
06-30-2002, 01:45 PM
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Re: How fast is a ZZ4 converted C3? (wcsinx)
I have never run mine yet but based on other cars I have driven, I would guess low to mid 12s for mine. Mine includes ported/polished edelbrock 6085 heads, H.O.T. cam (.218/228 - .525/.525), GM 1.6 rockers, Hedman headers w/2 1/2" duals, 3.70 gears and edelbrock ProFlo EFI. I don't have the fuel maps set right yet but when I nail it in first gear it is up against the rev limiter at 6500 almost before I can shift to second. Our local track (Southwestern International Raceway - SIR) will kick me off the track after a run less than 14.0 because I have a convertable and no roll bar. When I get everything just right, I will go there just to get kicked off but I will have a time slip!!
06-30-2002, 03:36 PM
#16
Race Director
Re: How fast is a ZZ4 converted C3? (wcsinx)
...thinking of buying one, and I'm curious.
0-60 mph? 1/4 mile? 1/8 mile?
0-60 mph? 1/4 mile? 1/8 mile?
tom...
06-30-2002, 05:36 PM
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Re: How fast is a ZZ4 converted C3? (Tom73)
...thinking of buying one, and I'm curious.
0-60 mph? 1/4 mile? 1/8 mile?
Here is one way to comapre. The 69 L46 was 350ci/350hp. The ZZ4 is 350ci/355hp. Both are gross hp ratings. Just find a road test of the L46 and you should have your answer. Check out the Corvette Archives for tests ( http://www.corvettearchive.com )
tom...
0-60 mph? 1/4 mile? 1/8 mile?
Here is one way to comapre. The 69 L46 was 350ci/350hp. The ZZ4 is 350ci/355hp. Both are gross hp ratings. Just find a road test of the L46 and you should have your answer. Check out the Corvette Archives for tests ( http://www.corvettearchive.com )
tom...
Ohhh.... and I'll check my jets ou this week! :D
06-30-2002, 07:07 PM
#18
Race Director
Re: How fast is a ZZ4 converted C3? (Mike69)
Yes... but the 69 L46 only had 310 or something (???) torque. The ZZ4 has more than 400. They wont yeild an accurate comparrison. I believe in stock trim the 69 L48 runs mid 14's if I'm not mistaken...
tom...
06-30-2002, 09:09 PM
#19
Melting Slicks
Re: How fast is a ZZ4 converted C3? (Tom73)
Don't forget that the 69 L46 was rated in gross Hp where as the ZZ4 is rated in net Hp. Big difference. The ZZ4 would outrun and L46 any day.
06-30-2002, 09:26 PM
#20
Team Owner
Re: How fast is a ZZ4 converted C3? (70 LS1)
Here we go again :rolleyes:
The GM crate engines are rated GROSS hp. Think about it - how can you rate a crate engine "net" which means with all accessories attached.
BUT, even if you tell me both engines are rated gross hp, I am pretty sure a ZZ4 will be significantly faster than an L46.
(maybe, maybe not.... road tests from 1969 are not a good measure because they are running bias ply tires)
But here is the real answer to how fast it is:
1. Faster than stock
2. Really fast when you first get it
3. After a while, not fast enough!! :lol:
MJ
[Modified by MNJack, 8:30 PM 6/30/2002]
The GM crate engines are rated GROSS hp. Think about it - how can you rate a crate engine "net" which means with all accessories attached.
BUT, even if you tell me both engines are rated gross hp, I am pretty sure a ZZ4 will be significantly faster than an L46.
(maybe, maybe not.... road tests from 1969 are not a good measure because they are running bias ply tires)
But here is the real answer to how fast it is:
1. Faster than stock
2. Really fast when you first get it
3. After a while, not fast enough!! :lol:
MJ
[Modified by MNJack, 8:30 PM 6/30/2002]