hurley_21_07

iTrader: (1)

Just wondering, has anybody here ever run an LT5?

Dan

Revelation Z28

iTrader: (10)

id love to run one in my car.

Chris95Z

iTrader: (3)

lol, that was a pretty sweet engine.

wws699

iTrader: (3)

I had the pleasure of running an LT4 vet on the freeway last summer. It looked like it just rolled off the showroom floor very nice vet (Black). Went from a 50 kick I was ever so slowly pushing past him. At the time I had Lid and Cat back. Best et for me that year was 13.20 with an A4

burnzilla

iTrader: (3)

You'd be watching it dissapear into the horizon.
Their 385hp and run mid 12's.

01gtmustang

Man theres a camaro like the white one with the orange stripes that drives around here. I just thought it was a lt1, i better be careful.

silver01z06

lt4 was basicaly a heads and cam lt1. very similar to ls1 vs ls6. but nothing like ls2 vs ls7. lt4's had different heads and intakes. allowed alot more air flow and why they were rated higher.

burnzilla

iTrader: (3)

There where ALOT of differences between the two.... alot.

* New camshaft design
* Larger valves
* Roller rocker arms
* Revised Head design
* Head Gaskets
* Revised Piston Design
* Positive-twist top piston rings
* Fuel System
* Intake Manifold
* Roller timing chain
* Specially machined crankshaft
* Dual-mass front torsional damper
* Nodular iron main bearing caps
* Teflon rear crank seal

Also, the LT4 had 28Lb Fuel Injectors, Roller Timing Chain, and other things.
I have a link to the LT1-LT4 Comparision page in my first post on this thread.

ccotter35@yahoo.com

LT5 info http://www.zr1netregistry.com/ZR1_specs.htm#G

necrocannibal

iTrader: (5)

I think the fastest time Iver ever seen posted on a ZR1 was 12.8 or 12.9 at like 110 mph and averaging about 13.1-13.5 at 106+ mph which would put them on par with LS1 fbodies.

Irunelevens

I've seen 12.5 @ 111mph from a ZR1... they might seem like they're on par with an LS1 on paper, but those cars pulled like monsters on top. They're more on par with LS2s.

necrocannibal

iTrader: (5)

My stock 01 WS6 went 12.8 @ 110 mph on stock tires, I bet it would have gone mid 12s on a tire. I never had a chance to run one though. Also LS2 Vettes are trapping more than 110 mph arent they?

Irunelevens

ZR1's strong suit is not the 1/4 mile. They were hitting 180mph back in 1990. DOHC motors like that breathe fantastic uptop. So your stock WS6 might have trapped 110mph, but a ZR1 would still have walked it uptop.

bjamick

iTrader: (31)

Ya didnt the ZR1's have like a button that could turn something on that put it at its max power? Like if you were racing you would hit this button but if your crusing you just turn it off. I remember my dad telling bout something but i cant remember what exactly it did.
All i know is i would definitely like to own one of the ZR1's

necrocannibal

iTrader: (5)

Same "button" GM has offered on many vehicles. It shuts off 4 of the cylinders to give better gas mileage.


And I know that a Zr1 would be faster up top, thats what they were built for, I was just stating that in a drag race that and an LS1 f body would be a drivers race.

ragtop_rat

Have a LT4 in my car A 396 stroker 525HP

Irunelevens

GM doesn't offer a "button" that deactivates cylinders. It's automatic, and computer-controlled. And the ZR1 had a special key (ala Bugatti Veyron) that allows for full power to be made. I think without the key (which is insert at the front of the center console), the rev limiter is lowered, and the A/F curves are reduced dramatically.

Slow Vette

iTrader: (1)

what would a LT5 Vette do to a LS1?

BigD 275

Last summer I ran a friend that had a 1996 Collectors Edition vette (silver in color and 6spd) with the LT4.

We went from a dig a few times and from a roll a few times. I would pull him everytime, however it was alot less than I thought; about 1/2 to 1 car length up to 80mph or so. Those LT4s are strong.

He was stock except for some sort of intake and catback. I am full bolt-ons with 4.10s. The time in my sig is before the new clutch with aluminum flywheel and LTs. I'm thinking I could be around 114mph - 115mph trap in the 1/4 now. I'll find out this spring.

Irunelevens

Yeah, that's why my *realistic* "dream" Corvette is an Admiral blue LT4, with the red/black interior like my mom's old '94 LT1 had. And I want the Grand Sport wheels as well. There's a guy around here that has an LT4 CE, looks stock at first to the untrained eye. And then you notice the rear fender flares, and the fact that those are ZR1 wheels on the back, and not the ZR1-lookalikes that came on the CE. And then he starts it, and you hear a FANTASTIC cam. When he pops the hood, there's a sheetmetal intake manifold, an MSD ignition (screw Optispark), longtubes, and a host of other high-performance pieces. Guy says it dynoed at 485rwhp. You might think that it's geared toward dragstrip-performance, until you notice that it is wearing Kumho Victoracers I'm such a sucker for C4s

Edit: Here's a pic of my mom's old one, the first weekend after we got it back in Jan. '00. I was 14 at the time, but since I took such good care of it, it basically became my car on my 16th birthday. I miss that car