Stock '93 LT1 times?
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From: Lafayette/West Lafayette, IN
Stock '93 LT1 times? I'm not sure if this is the right forum for this... If not let me know and I'll delete it and move it to the right one...
Anyway, I'm getting ready to buy a '93 Z28 this weekend for my DD and I'm just wondering what kinds of times those cars run? I didn't think they changed much of anything except some small things, but on the site I'm looking at it says 14.4 for a stock '93 Z28, and it says a '96 Z28 is 14.1, SS is 13.8. From what I heard I was thinking all the Z28 LT1's ran a low 14. The thing that makes the 14.4 kinda hard to believe is that it says the '90 Iroc-Z ran a 14.4. The car is in pretty good shape mechanically. No problems that he knows of. Transmission was rebuilt about 10k ago so that should be good. Bad tires that need replacing.
So whats the story on what the LT1s, including that 93, run?
Anyway, I'm getting ready to buy a '93 Z28 this weekend for my DD and I'm just wondering what kinds of times those cars run? I didn't think they changed much of anything except some small things, but on the site I'm looking at it says 14.4 for a stock '93 Z28, and it says a '96 Z28 is 14.1, SS is 13.8. From what I heard I was thinking all the Z28 LT1's ran a low 14. The thing that makes the 14.4 kinda hard to believe is that it says the '90 Iroc-Z ran a 14.4. The car is in pretty good shape mechanically. No problems that he knows of. Transmission was rebuilt about 10k ago so that should be good. Bad tires that need replacing.
So whats the story on what the LT1s, including that 93, run?
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From: Decatur, TN (N-W of Athens)
Aside from my sig (Haven't gotten around to the TBody yet) mines basically bone stock :\ I haven't made it to the track though, so I'm not much help, sorry. You'll love the car though.
When I got my 93 with just deleted cat(straight pipe), flowmaster muffler(hardly worth 3hp), and 245 khumo street tires I ran a 13.9. This is in low/no altitude florida though on a fairly chilly track day.
Its around ~14.0 for most good running stock lt1s depending on altitude and weather.
Its around ~14.0 for most good running stock lt1s depending on altitude and weather.
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From: Lafayette/West Lafayette, IN
Ok, sounds good. How do these cars hold up at higher mileage? The one I'm getting has about 135k miles. Just had a rebuilt tranny about 10k miles ago though, but how well does stuff hold up? And do they run consistent times into the higher mileage, or does that start dropping too?
Thanks for you help
Thanks for you help
Teching In
Joined: Nov 2004
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Originally Posted by Speedmonster185
Ok, sounds good. How do these cars hold up at higher mileage? The one I'm getting has about 135k miles. Just had a rebuilt tranny about 10k miles ago though, but how well does stuff hold up? And do they run consistent times into the higher mileage, or does that start dropping too?
Thanks for you help
Thanks for you help
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From: bethel PA
probably just a stuck open thermostat, my car ran a 13.7@102 stock. only thing to watch for on any LT1 is water pump leaking, if the opti wasnt replaced plan to. thats the biggest things to go wrong on the car.
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From: Lafayette/West Lafayette, IN
I'm pretty sure he tried replacing the thermostat already... Thats what i was thinking at first too...
What exactly is the opti? (sorry, brand new to LT1's
)
What exactly is the opti? (sorry, brand new to LT1's
) 
try a different temp. sending unit. its on the head.
opti is the distributor, located on the front of the engine under the waterpump.
i tore down my 140k mile heads/cam LT1 due to worn rings. (not bad, but too bad to be in my race car)
main/rod bearings looked great with zero copper showing, but the cam bearings had some wear.
opti is the distributor, located on the front of the engine under the waterpump.
i tore down my 140k mile heads/cam LT1 due to worn rings. (not bad, but too bad to be in my race car)
main/rod bearings looked great with zero copper showing, but the cam bearings had some wear.
On The Tree
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From: bowling green ky
Originally Posted by Speedmonster185
I'm not sure if this is the right forum for this... If not let me know and I'll delete it and move it to the right one...
Anyway, I'm getting ready to buy a '93 Z28 this weekend for my DD and I'm just wondering what kinds of times those cars run? I didn't think they changed much of anything except some small things, but on the site I'm looking at it says 14.4 for a stock '93 Z28, and it says a '96 Z28 is 14.1, SS is 13.8. From what I heard I was thinking all the Z28 LT1's ran a low 14. The thing that makes the 14.4 kinda hard to believe is that it says the '90 Iroc-Z ran a 14.4. The car is in pretty good shape mechanically. No problems that he knows of. Transmission was rebuilt about 10k ago so that should be good. Bad tires that need replacing.
So whats the story on what the LT1s, including that 93, run?
Anyway, I'm getting ready to buy a '93 Z28 this weekend for my DD and I'm just wondering what kinds of times those cars run? I didn't think they changed much of anything except some small things, but on the site I'm looking at it says 14.4 for a stock '93 Z28, and it says a '96 Z28 is 14.1, SS is 13.8. From what I heard I was thinking all the Z28 LT1's ran a low 14. The thing that makes the 14.4 kinda hard to believe is that it says the '90 Iroc-Z ran a 14.4. The car is in pretty good shape mechanically. No problems that he knows of. Transmission was rebuilt about 10k ago so that should be good. Bad tires that need replacing.
So whats the story on what the LT1s, including that 93, run?