Pro Stock John

iTrader: (34)

Here is the thread in question:

http://forums.corvetteforum.com/showthread.php?t=923432

My understanding is that the LS2 has a 60X crank reference.

Since the LS1 is 48X, and his put a LS1 style engine into his LS2, how can the car work?

I did in fact call him, and he said the car runs. He said he had to modify the cam sensor wiring a bit.

Snow Dog

iTrader: (3)

wow thats awsome. cant wait to hear some numbers on it

Worm

iTrader: (2)

"You will be able to run the LS2 in your C5. My major concern was the cam sensor. There isn't one in the LS2 block. It's in the timing cover. The wires need to be cut and spliced and actually have their position in the plug changed, but they will work. I actually have both sensors in this engine and made a long extention harness so that I could run the motor off either one. Now that I know it will work, I'm going to go back in, pull the timing cover and replace it with a C5 cover with a double roller timing chain.
The knock sensors are also different, but they will also work. I just had to Helicoil one of the holes in the side of the block down to 8mm."
Doesn't that explain it fully? He changed the position so it reads differently.

Textralia

My thoughts exactly...how does the pcm reference the change in flywheels?.........I would have to see it with my own eyes Wash

snketr

iTrader: (3)

Andy's a pretty amazing guy. He is probably the most trusted and well liked vendor over on corvetteforum. His ATI setup blows ATI's own setup away. He is quite innovative. HIs cust service is the stuff of legends.

Pro Stock John

iTrader: (34)

He's very sharp, I have talked to him on occasion.

I am just pointing out that LS1/LS6's are 48x and the LS2 is 60x. The crank sensor setups are different.

Textralia

EXACTLY!....thats what im thinkin! Wash

BuffJoeyD

iTrader: (2)

Local to me, I wanna go check it out =)

Beast96Z

iTrader: (21)

Are the PCM's interchangeable between the cars? Obviouslly he would need some sort of a tune to run a 427, so I would think he put in a LS1 computer with the apropriate tune??? That or he used the LS2 cam gear and timing cover, which kinda sounds like what he did cause he said he was going back to put the C5 timing cover back on along with a double roller. When he does that, I would assume the PCM change would be manditory.

Worm

iTrader: (2)

Hes running the 427 on the stock C6 PCM and stock tune, there is no way to tune the new PCM as of this time.

Pro Stock John

iTrader: (34)

The LS2 PCM and harness do not interchange with the LS1/LS6 PCM and harness.

Andy is running the stock LS2 stuff with LS1 sensors spliced in. I can see where it's no big deal for the knock sensors, but how can the crank sensor be working? Anyone near there, does he actually drive the C6 or does it sit?

WhiteDiamond

PSJ,

Since his original post you link too, he hasn't said a word about it. Andy may be having some issues with it at this time, because he is usally pretty excited about his new projects. The PCM could very well be seeing an input but possibly having problems due to resolution of the sensors. My very uneducated guess is that the PCM is probably working off of the sensors and thinks something is wrong, possibly in a fail safe mode or not providing optimal performance outputs. Andy will have to chime in and let us know.

Todd

johnny p

Time for a F.A.S.T. setup , Andy knows his **** & we will soon find out more Details about his Project. P.S.J. bring Your car out for a couple of passes before it starts Snowing Buddy , I'll give You a Buzz.

Pro Stock John

iTrader: (34)

With all of the interest in using LS2 blocks for conversions, I am trying to find as much info as I can. I have two GM contacts who give me info but there are a lot of gaps in the info. I do know that all of GM's stuff is going to 60X which is fast becoming the standard for American car manufacturers. Andy did tell me on the fone he had drill out a spot on his block for a sensor.