Any blown up ZL1 engines yet?

[NASTY99Z28]

Originally Posted by speedmon

It take a lot to blow any LS motor...they take a lot of abuse.

The GT500's 5.8L may pump more power but for a 4V DOHC $20K engine, I would hope so.

....And you can't readily find them for sale.

The LSA powerplant is a great example of GM's ability to make power out of $$. They didn't need a forged bottom end for boost...the LS1 aftermarket showed them that......Ever hear of an LS1 with a broken crank?
Where esle can you buy a 550+ boosted HP engine (with upside) for $8,500....and they're in stock and come with a great warranty. And thats a critical item, the warranty......you can't buy ANY 500+hp boosted engine ANYWHERE with a warranty....and its CA emissions compliant.

The ford is overbuilt and expensive. The LSA is engineered with purpose and optimized for affordbility.

Its a good candidate when considering re-powering an SS.

What engine comes with 550 boosted Hp from GM for $8,500?

[kbar4782]

Originally Posted by speedmon

It take a lot to blow any LS motor...they take a lot of abuse.

The GT500's 5.8L may pump more power but for a 4V DOHC $20K engine, I would hope so.

....And you can't readily find them for sale.

The LSA powerplant is a great example of GM's ability to make power out of $$. They didn't need a forged bottom end for boost...the LS1 aftermarket showed them that......Ever hear of an LS1 with a broken crank?
Where esle can you buy a 550+ boosted HP engine (with upside) for $8,500....and they're in stock and come with a great warranty. And thats a critical item, the warranty......you can't buy ANY 500+hp boosted engine ANYWHERE with a warranty....and its CA emissions compliant.

The ford is overbuilt and expensive. The LSA is engineered with purpose and optimized for affordbility.

Its a good candidate when considering re-powering an SS.

Yep, been like this for years. Hence the large number of Chevy engines in race cars across the board no matter what kind of racing you're doing. Chevy = cheap, reliable power.

[Mr. Wyndham]

Originally Posted by radz28

Also - I believe LSA is also used in marine applications, too, which should also point to how sturdy they are.

Right! I forgot about that aspect entirely!

[hognutz]

lsa is $11,199

http://paceperformance.com/i-6255521...te-engine.html

trinity 5.8 ~25-26k I have heard but there is not good source yet. the last gen 5.4 was $22-23k if I remeber right.

5.8 has forged pistons put PM forged rods 2.3L eaton@15psi. LSA has hypereutectic pistons and PM forged rods 1.9L eaton@8.5psi.



When I was looking at the GT500 one of the things tha gave me pause was the way the block is manufactured. it is punched way out and the cyliner wall have a special process perfomed on them.

Sounded like an issue with the block would require a new one. I have had mustangs before and you can make great power but they cost more $$$ for hp if you have an issue with the motor.

[IOMZL1]

Rewind 6 months and all we were hearing about is how the LSA wasn’t forged and the 5.8 was.

[radz28]

Originally Posted by IOMZL1

Rewind 6 months and all we were hearing about is how the LSA wasn’t forged and the 5.8 was.

Like Mr. Wyndham has been saying - just because the slugs aren't forged, that doesn't mean they aren't strong. In addition - oil squirters help keep the temperatures under control, too. I've thought LSA would be stout enough for the general population that would be buying and mod'ing. GM, nor Ford, should be expected to built a 1000-capable short block.

JMO

[Mr. Wyndham]

Originally Posted by radz28

Like Mr. Wyndham has been saying - just because the slugs aren't forged, that doesn't mean they aren't strong. In addition - oil squirters help keep the temperatures under control, too. I've thought LSA would be stout enough for the general population that would be buying and mod'ing. GM, nor Ford, should be expected to built a 1000-capable short block.

JMO

At least....not for cheap.

[mlee]

Sounds like they are really pushing the limits of the 5.8

[trademaster]

Originally Posted by radz28

Like Mr. Wyndham has been saying - just because the slugs aren't forged, that doesn't mean they aren't strong. In addition - oil squirters help keep the temperatures under control, too. I've thought LSA would be stout enough for the general population that would be buying and mod'ing. GM, nor Ford, should be expected to built a 1000-capable short block.

JMO

Anyone worth their salt knows the problem with hypereutectic pistons doesn't lie in their strength, but hardness. Hypereutectic pistons are strong, but brittle. They are perfectly capable of sustaining high cylinder pressures, but throw in some knock and they'll be in pieces before you know it. With the LSA you are going to have to be more conservative with the tune than in the 5.8. That's why you see the stock ZL1 tune pull so much timing in higher heat conditions, to avoid knock. This is also why you see a lot of the shops doing efficiency mods like heads and cams instead of just tossing on massive blowers and cranking out tons of boost on stock motors like the gt500 shops are. This is a truth that zl1 owners are going to have to keep in mind when modifying. Take your cars to reputable tuners only, because hypereutectic pistons do not hold up well to knock. With a good conservative tune you should have no problem satisfying your hp needs reliably with the wonderful LSA.

With a given fuel type, 9/10 times I would bet on the 5.8 short-block having a higher "safe" ceiling, but both engines top out at such high power levels it's really a silly debate. Both engines are capable of huge numbers and both can easily be fortified to handle more. When it comes to cost, well I wouldn't really consider the cost difference too significant because of the differences between the two engines. You must keep in mind the additional surrounding components of the 5.8 including the blower and cooling system. Bolt on only 5.8s are making over 750rwhp. In the long run, either engine is going to bring about the same overall cost per hp.

[ZEDL1]

Originally Posted by IOMZL1

Rewind 6 months and all we were hearing about is how the LSA wasn’t forged and the 5.8 was.

In case this hasn't been mentioned elsewhere in the thread, the LSA in the ZL1 does have a forged steel crankshaft.

[wakeman808]

I can confirm if you are running 700+RWHP, the internals definitely need to be changed. I've got a rod knocking now.

[SlugWound]

Originally Posted by wakeman808

I can confirm if you are running 700+RWHP, the internals definitely need to be changed. I've got a rod knocking now.

Would love to see the list of MODS and details of your tune...

[SC2150]

Originally Posted by radz28

Like Mr. Wyndham has been saying - just because the slugs aren't forged, that doesn't mean they aren't strong. In addition - oil squirters help keep the temperatures under control, too. I've thought LSA would be stout enough for the general population that would be buying and mod'ing. GM, nor Ford, should be expected to built a 1000-capable short block.

JMO

[mlee]

Originally Posted by wakeman808

I can confirm if you are running 700+RWHP, the internals definitely need to be changed. I've got a rod knocking now.

I'm guessing this is your car...:(

http://www.camaro5.com/forums/showthread.php?t=257245