C5 had trans in the rear too

they made it wider wheel base, and longer wheel base going into the C6 model. So there is more room between the wheels, car is shorter too i think.... But sure LS7 > LS6 but we were discussing C5s so i was keeping it on track

 

I dunno about the LS1 being flawless. Search around, you'll hear a lot of bitching about excessive oil consumption and piston slap. A guy I work with has an '02 Trans Am with the LS1, the engine sounds like it's coming apart at cold idle, lots of clattering and rattling that the Pontiac dealer has told him is normal; they've gone so far to tell him that "all LS1s do that, we can replace your engine and it'll do the exact same thing." The car goes like stink though, just sounds like hell. I couldn't put up with the way that thing sounds at idle, it's awful.

 

yah the motor does consume about a quart every oil change. But i think just about any push rod V8 does that... Its a high performance motor. And the LS1 runs so much better at cold idle once you delete EGR and AIR

 

I ain't just talking about one quart, the reports I've read say 2-3 quarts every 3000 miles.

And how do you figure deleting EGR and AIR will make it run better at idle? EGR is never requested at idle, and AIR only runs for 240 seconds on start up or until the PCM commands closed loop, whichever comes first. If anything, secondary air oughta make it run a little better at idle, helps light the converters off faster.

 

well easiest way to delete EGR is getting LT headers, and then you dont have cats anymore either. But AIR robs a lot of cold start up power, both of my roomates had/have LS1s and believe me the one that had AIR on it still ran like crap until it was turned off, and the other one had no cold start up issues...

but sure on a stock system i could see how they could help, but most people do atleast LT headers, and alot do a mild cam also....

Ive only noticed 1 quart - 1.5 quarts loss from my experience, im not saying there arent engines that eat more then that, but the half a dozen or so ive had experience with it was around 1 quart consumption.
-Patrick

 

What does power loss on cold start matter anyways? We're running on open loop on cold start, all that matters to the PCM is that the engine is running and not skipping. And again, air injection only runs for 240 seconds or until the PCM commands closed loop; if the engine was running like crap until the air injection was disabled, the secondary air system was broke and needed to be fixed, not disabled.

Same goes with EGR. EGR is never flowed at idle, if the car ran poorly with the EGR enabled, and cleared up after it was removed, the EGR system was broke and needed to be fixed, not disabled.

Point being unless the EGR or AIR is malfunctioning, there's no way that they'll influence idle quality.

 

Thanks for the input guys...i found a loaded 04 DSG coupe that looks pretty nice and has a good price it was in Memphis private party, dealers are still really proud of em ...I read a bit more about them and the LS3 motor is supposedly coming out for 08 model years. The 04(C5)was the last model year for that style. I figure on waiting a few mnths and getting a 05/06 which is the new stlye C6 body style I like the integrated HID's and that flat backend a bit better, Coupe all the way but the Z06 is outa my price range for a weekend driver. The ins wasn't that bad abt 105/mth for 250/250/500+UM with 1000Coll/250Comp. They actually rate the car first so it would drop my truck ins by approx $45/mnth, so the net effect isnt bad. You can get a base stripped 2007 for a bit under 40K, but for a go fast car 400 HP thats not bad...

 

trail b*tch,your Vette is beautiful!!

 

The cars im refering to were both tuned as a Speed density, and the one with the AIR ran like crap. Actually the one with AIR had about 36k and the one without it had about 70k..... Both cars were owned by my two roomates, so i saw the cars run cold start up very often

but w.e take my experience as proof, or just disregard it....

 

Your "experience" completely contradicts the operation of the systems as per the service manuals, so I'll disregard it. It's beyond the scope of this thread anyways.