Gen 5 Small Block LT1... The Lt1 is back?
10-25-2012, 10:13 AM
#63
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10-25-2012, 11:10 AM
#64
Staging Lane
Spraying this engine wouldn't be ideal.
More precise fuel timing with direct injection makes tuning more precise and more difficult, higher risk. The physics of it is extremely complicated as it's difficult to model and predict when the combustion due to compression will occur. So right now, it's only feasible in a very narrow operating range.
The optimization is difficult and dangerous with direct injection, (YOUR SATETY MATTERS).
GM knows what it is doing.
Another very very big event will come forward to satisfy majority of consumers.
Bigg Gunz
More precise fuel timing with direct injection makes tuning more precise and more difficult, higher risk. The physics of it is extremely complicated as it's difficult to model and predict when the combustion due to compression will occur. So right now, it's only feasible in a very narrow operating range.
The optimization is difficult and dangerous with direct injection, (YOUR SATETY MATTERS).
GM knows what it is doing.
Another very very big event will come forward to satisfy majority of consumers.
Bigg Gunz
If I were GM, I'd look into a system that depressurized the fuel system once the engine shut off, that's where mechanics have been getting hurt. Like maybe having the injectors depressurize the system whenever the engine was shut down, or maybe even a manual valve of some type that has to be closed to build pressure.
10-25-2012, 07:43 PM
#66
Not doubting you on the complexity of cracking the tune, but I don't think tuning DI in and of itself is all that dangerous. The turbo ecotech is DI, and they have been selling bigger turbos for that engine for years. They said the GT-R would never be cracked, either...
If I were GM, I'd look into a system that depressurized the fuel system once the engine shut off, that's where mechanics have been getting hurt. Like maybe having the injectors depressurize the system whenever the engine was shut down, or maybe even a manual valve of some type that has to be closed to build pressure.
If I were GM, I'd look into a system that depressurized the fuel system once the engine shut off, that's where mechanics have been getting hurt. Like maybe having the injectors depressurize the system whenever the engine was shut down, or maybe even a manual valve of some type that has to be closed to build pressure.
At least 2 of us thought it was funny!
10-26-2012, 11:01 PM
#67
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ok Bigg Gunz I smell what ur steppin in, you are letting the cat out of the bag now!!!
GM wants a piece of the aftermarket, and have gone to great lengths to ensure that they do get it, am I wrong?
P.S. fellas the original LT1 is a fantastic piece of engineering, even though the OPTI-NO-SPARK was it's weakness. dump that crap, then rock on!!
10-30-2012, 09:24 PM
#69
Give it a few years and we will be tuning the **** out of these just like every other LS,LT, TPI platform for the last 26 years gm has has had a pcm controlling.
It's only uncrackable for a while once we get the first ones home in the driveway and crack these bitch's open we'll find a way to cam it tune it and put FI on it. Just a matter of time I've heard untuneable from gm every time something new comes out. In 96 OBD2 was supposed to be the death of tuning and performance and it was at first but once we cracked em we found a wealth of tuning and diagnostics that made working on them and hot rodding them 10 times easier than the previous chipped systems.
It's only uncrackable for a while once we get the first ones home in the driveway and crack these bitch's open we'll find a way to cam it tune it and put FI on it. Just a matter of time I've heard untuneable from gm every time something new comes out. In 96 OBD2 was supposed to be the death of tuning and performance and it was at first but once we cracked em we found a wealth of tuning and diagnostics that made working on them and hot rodding them 10 times easier than the previous chipped systems.
10-30-2012, 09:37 PM
#70
Not doubting you on the complexity of cracking the tune, but I don't think tuning DI in and of itself is all that dangerous. The turbo ecotech is DI, and they have been selling bigger turbos for that engine for years. They said the GT-R would never be cracked, either...
If I were GM, I'd look into a system that depressurized the fuel system once the engine shut off, that's where mechanics have been getting hurt. Like maybe having the injectors depressurize the system whenever the engine was shut down, or maybe even a manual valve of some type that has to be closed to build pressure.
If I were GM, I'd look into a system that depressurized the fuel system once the engine shut off, that's where mechanics have been getting hurt. Like maybe having the injectors depressurize the system whenever the engine was shut down, or maybe even a manual valve of some type that has to be closed to build pressure.
