motor

jon944lee · 04-28-2004, 06:23 PM

LS1. i have driven both and i feel that the LS1 is more neck-snapping and fun to drive.

gtrxu13:16 · 05-30-2004, 06:14 AM

In Aus we have only had LS1 so i cant really compare but the only real drama we have down under is they have oil consumption problems and piston slap. i have driven a few LS1's and make all there power at 3000 rpm and above. So they can be economic and be heaps of fun when you get into them

DanielW · 05-31-2004, 12:32 AM

Originally Posted by nthfinity

^^^^^^^^^^^^^^^^god i love vettes

today i found a 91' C4 with new intake, exhaust, and cam for 12,000..... soooo tempting, but i dont think i could afford the insurance... i should try and test drive it i think...

that's pretty pricey for an L98 car.

I would pick the LS1 btw. it pulls eally nice, didn't really have a lot of seat time in an LTx car.

nthfinity · 05-31-2004, 12:31 PM

that's pretty pricey for an L98 car.

I would pick the LS1 btw. it pulls eally nice, didn't really have a lot of seat time in an LTx car.

yes, i didnt end up getting it primarily due to the studpidly high cost... but i did drive it, and it honestly changed my life

if/when i do get one, it will be an LT1, likely... unfortunately, i dont exactly have enough money to pick up a newer C5 w/LS1

peacenriot69 · 05-31-2004, 03:40 PM

Depends on how you look at it. In terms of torque, the LT1 was a marvel because it could produce its peak torque at an incredibly low RPM - 325 ft/lbs @ 2400 RPM in the F-Bodies, 330 ft/lbs @ 4000 in the C4's, and was tooled to produce even more low-end TQ for GM's trucks.

Thats the thing about the LT1 - it was designed to be the workhorse for GM. It powered not only the F-Bodies & Vettes, but also the Caprice/Roadmaster/Impalla, and was an option or standard engine on nearly all of GM's mid-full sized trucks & SUV's from '93-'97.

The LS1 in contrast had the benefit of being designed specifically for the new C5 Corvette. Like the LT1 it was slighly downtuned for the F-Bodies, but did not find its way into any GM trucks.

The LT4 engine which was available in 1996 was perhaps the greatest incarnation of the LT1. It was basically a factory hot-roded LT1 which produced the same tire shredding low-end torque but now had the horsepower curve that charged right up to the 6300 RPM redline (whereas the normal LT1's horespower curve tended to back down after about 5000 RPM).

In the long run, the biggest advantage the LT1 has over the LS1 is its cast iron block. GM experimented with aluminum V8's in the '60's only to watch them melt themselves. Even the new aluminum LS1 block has steel sleeves inserted into the piston chambers to prevent the block from warping/cracking. The LT1 block has the advantage when it comes to not only the availability but also the possibility of major modifications because of its durability. True, they are now figuring out ways to really bore and stroke out an LS1 by inserting better/stronger sleeves into the piston chambers, but based on its aluminum block I think it will only be a matter of time before we start seeing a number of these motors coming back with the same kind of serious structural failures that occured to aluminum blocks forty years ago.

This is a Quote from another Fourm on the web with the same topic.

graywolf624 · 05-31-2004, 03:49 PM

True, they are now figuring out ways to really bore and stroke out an LS1 by inserting better/stronger sleeves into the piston chambers, but based on its aluminum block I think it will only be a matter of time before we start seeing a number of these motors coming back with the same kind of serious structural failures that occured to aluminum blocks forty years ago.

See... theres some major problems with that. The ls1 is not a new engine. It was in camaros starting in 98 for example. Ive seen 1000 hp versions that are durable, and the ls6(which is basically an ls1 with alluminum heads).
Its frankly better to have an alluminum engine. The lt1 engine weighs 100 lbs more then the ls1 engine. Parts for the lt1 are cheaper, which really is the only real advantage the lt1 has anymore. You want a lighter engine for racing, hell its almost as important as the hsp itself.