The NEW LT1

**Greg08** · 10-25-2012, 09:01 PM

my mazdaspeed 6 was one of the first cars to ever use direct injection, and we an tune it just fine!

**thunderkyss** · 10-25-2012, 09:18 PM

Originally Posted by Greg08

my mazdaspeed 6 was one of the first cars to ever use direct injection, and we an tune it just fine!

Is the fuel delivery system similar to the one on the new LT1?

**94Blackbird** · 10-25-2012, 09:36 PM

Originally Posted by thunderkyss

Is the fuel delivery system similar to the one on the new LT1?

It's not so much the mechanical part of it, it's the engine control unit. If I read the statement correctly, the ECU has to sync up with a server that GM is setting up, and then the command to allow the ECU to be unlocked will be sent from that server. GM is trying to completely tamperproof the ECU so that it can't be messed with. It's not the fuel system itself, it's the Engine controller.

***meissen*** · 10-26-2012, 06:57 AM

I questioned the guy more on that other site's thread. He said it's not always checking, only when you go in for warranty work or diagnoses... That to me sounds like it can be tuned perfectly fine, it just means they'll really know if you tamper with it. If that's the case, it's nothing really new - it's just that they may have "perfected" or believe they have a PCM that can't be tuned without GM knowing. It just means if you want to have your car tuned you'd need two ECMs - the stock one with a stock tune and then a second one with the aftermarket tune.

**GreenZ96** · 10-26-2012, 07:09 AM

I wonder if it will be offered up as a crate motor in the near future, or if one would have to wait and pick one up from a parts yard or part out.

**thunderkyss** · 10-26-2012, 11:23 AM

Originally Posted by 79LT1Monte

I guess I missed the first discussing. I know this has nothing to do with the LT1 as we know it, I just can't stand the lack of creativity. Of all the letters in the alphabet why do you have to reuse the same combinations. At least they aren't calling Coyotes or anything gay

hmmm..... they've reused Z28, Z27, Z21 forever & the cars rarely have anything in common. For the most part, the Z28 has been corner carving sportscar, the RS has been an appearance package, & the Super Sport was a drag strip beast. But this new SS, the 5th gen... it's got a suspension package you'd think you'd see on a Z28.

LT1 just meant high performance engine.