[bigdog7373]

Well here's the replacement for the LS series engines! I'm not sure why they called it the LT series again, but it is what it is.
Read about it here: Breaking News: Chevy Gen V Small-block Reveal - CorvetteOnline

[454 Rattler]

Any comments ?

[against all odds]

i was just thinking about this today----that the original small block went 42 years before being "succeeded" by the LS engine. And the Ls engine "only" lasted 15 years before getting replaced. Which indicates that is gen 5 engine must be REALLY GOOD on top of the already phenomenal LS engine?!?

a) Will gm continue to produce the LS engine---as they do the original small block? Will it continue to be installed in production vehicles--namely pickups?

b) It appears they are going back to using a mechanical fuel pump? Interesting.

[E.Furgal]

Originally Posted by against all odds

i was just thinking about this today----that the original small block went 42 years before being "succeeded" by the LS engine. And the Ls engine "only" lasted 15 years before getting replaced. Which indicates that is gen 5 engine must be REALLY GOOD on top of the already phenomenal LS engine?!?

a) Will gm continue to produce the LS engine---as they do the original small block? Will it continue to be installed in production vehicles--namely pickups?

b) It appears they are going back to using a mechanical fuel pump? Interesting.

I think in that 42 year run. they just didn't change the code everytime they changed one thing..
with todays computer indexing systems it's most likely easier to index parts this way..

[Project89]

the enw engine should be really nice but i see a few problems, it has already been stated by gm engineers that the ecm running these engines will not be able to be cracked or tuned, and any tampering will cause them ecm to shut down and engine will not run.

if this is truley the case i do not seeing this being a popular engine until some companys come out with a standalone system to run the engine

also how much hp can this new cam driven fuel pump supply if it cant supply much more then stock well there goes the ability for engine mods

[against all odds]

The other question besides how many lbs pressure can the pump provide is why go back to mechanical in the first place?

[E.Furgal]

Originally Posted by against all odds

The other question besides how many lbs pressure can the pump provide is why go back to mechanical in the first place?

lets see..
safety.. you don't have a fuel line going the lenth of the car with 60-80psi of fuel..
cheaper..
less of a drain on an already overtaxed 12-14 volt system
less of a delay on fuel pressure changes..

[E.Furgal]

Originally Posted by Project89

the enw engine should be really nice but i see a few problems, it has already been stated by gm engineers that the ecm running these engines will not be able to be cracked or tuned, and any tampering will cause them ecm to shut down and engine will not run.

if this is truley the case i do not seeing this being a popular engine until some companys come out with a standalone system to run the engine

also how much hp can this new cam driven fuel pump supply if it cant supply much more then stock well there goes the ability for engine mods

it's not so much that the code will be hard to crack...
it'll be hard to crack and then return to stock tune after you blow it up and bring it back for warranty repairs..

[bigdog7373]

Originally Posted by against all odds

The other question besides how many lbs pressure can the pump provide is why go back to mechanical in the first place?

Because the direct injection requires very high pressures, which the mechanical pump i guess is better suited to provide. It still needs an electric low pressure pump though.

Just remeber that when the LS first came out everyone said the same thing about not being able to get into the ecm, now look at us.

I just hope they keep producing the LS engines. They are perfect for hotrodding since they are not too complicated. This new motor will make for some pretty interesting swaps though. I just wonder how the direct injection will respond to modifications. Also, I can't be the only one who hates drive-by-wire!

[Project89]

Originally Posted by E.Furgal

it's not so much that the code will be hard to crack...
it'll be hard to crack and then return to stock tune after you blow it up and bring it back for warranty repairs..

the new ecms are aparently internet enabled and the ecm checks back to a gm database to check out the ecm. ill have to find the article

if this is the case then a complete reflash of the ecm with all new code would be needed to do anything with the ecm

[E.Furgal]

Originally Posted by Project89

the new ecms are aparently internet enabled and the ecm checks back to a gm database to check out the ecm. ill have to find the article

if this is the case then a complete reflash of the ecm with all new code would be needed to do anything with the ecm

or sign on the dotted line.. of the warranty waiver

[bigdog7373]

The name they gave it really bothers me! Now we have the LT-1, the LT1 and the LT1. Yet they are all completely different. Why gm? Whyyy!?

[66GMC]

Originally Posted by bigdog7373

The name they gave it really bothers me! Now we have the LT-1, the LT1 and the LT1. Yet they are all completely different. Why gm? Whyyy!?

They (and other auto mfrs) have been re-using badges, trademarks, and terms over and over again since the 50's at least.

My "conspiracy theory" is that they do these things to drive us parts people crazy!

[bigdog7373]

Originally Posted by 66GMC

They (and other auto mfrs) have been re-using badges, trademarks, and terms over and over again since the 50's at least.

My "conspiracy theory" is that they do these things to drive us parts people crazy!

Just with gm off the top of my head:
ZL1
LS6
LT1
442 (changed meanings at least once)
Turbo fire, jet, thrust, glide, hydromatic. Yet none had anything to do with a turbo.
"Vortec" has been used to label a few different engines

[ProStreetRob]

Compression ratio: 11.5:1

WOW, Dont know that I would want to throw a Big Blower on that