Has anyone sprayed thier c6 or have any information about using nitrous on the ls2?

 

Call Breathless

 

I would rather spend the $$ on headders and exhaust and possibly supercharge
Nitrous is like feeding candy to a baby
Not for a daily driver
Quick and cheap way to blow your motor !

 

I had nitrous on my c5 so i already have the whole kit and everything, I was just wonderning if the ls2 would hold up as good as the ls1 under the juice.

 

Honestly I have heard different. The Spray is an optional thing. You can have it on when you want, and you can pill it for how crazy you want to go (with your engine) and your TQ numbers will be extremely higher then with a blown car.

A Blown car is on all the time, and its hard to control the boost. I have heard alot of people blowing their engines when its cold outside and all of a sudden the blower is running 13psi instead of 7psi and KABOOM.


I would rather go spray, its ALOT cheaper. and you dont have to ride around with it on (blower) all the time. So I would assume it would be a little easier on the engine (as long as you are in the right slot for you motor range)

 

I squeeze.... but only at the track!
And not on the C6 yet... just on the C5.

 

I would hold off until you can tune the ecu. Without a tune I wouldn't shoot over a 75 shot. Just my humble opinion.

 

Think that NOS without a tune would be like.... no I won't
Anyone spray yet?

 

Actually the car is very rich from the factory and with 10 degrees less timing than a tuned car....it is very set up from the factory for a spray fest.

 

Spin, so would you go dry or wet for a 100 shot?

 

A guys signiture I saw said.... Nitrous is like a hottie with an STD, ya wanna hit it but are afraid of what might happen...

 

100 is the limit for a dry shot...simple one solenoid install and it gets around the issue of where to put the nozzle....that accordion coupler is the only place for a wet shot unless someone machines a plate for the nozzle like the one that Dyno Tech Engineering has for the C5:

http://www.dynotech-eng.com/power_plate.htm

The downside is the issue of the fuel injectors. At about 450rwhp where a 100 dry shot will put it, you will be high on the duty cycle. It should be ok as long as you don't have any other mods. The C6 appears to have some safety PCM protection from going lean. Some tuners have noted that the car wont go above a certain power level and that may be from the injectors going 100% duty cycle and the PCM prevents more throttle air from comming in after the fuel delivery fails to climb. More on this when the tuning software from HP tuners and LS2-Edit come out.

I already have the wet shot gm efi system so I will go that route and it is on the fuel pump for the safety from going lean. Since guys are getting over 500rwhp I assume that the stock fuel pump can get there until there is a racetronics system for the C6.

Any other input/opinions?

 

You could always put a Kenne Bell (or MSD) Boost-a-pump on your factory fuel pump for a little extra help, then when Racetronix comes out with a pump for the C6, just hook the bap up to that....Racetronix and the BAP got me well over 700 horsepower in my Camaro.

 

700rwhp is insane!! I assume you had an ATI? How does a KB boost a pump know when to increase the pressure or is it always doing that? I had the racetronics in my C5 but didn't need that kind of fuel supply

 

I don't remember which vette mag this month did an article on a c6 with spray. They hooked up a 100 shot to a bone stock c6. The car made 450/600. Or something like that. But it was the torque that was crazy. 240 ft/lbs increase The ecm could not handle the 125 shot however.

Not bad for under $1000. I have had a 100 shot on my c5 for going on three years. It's like anything as long as use don't get greedy and abuse it. By the way I have never heard of someone blowing a motor with only a 100 shot(wet)

When I get a c6. I will have it hooked up first week.

 

100 shot dry is safer I think.

 

I haven't installed a nitrous system on my Corvette yet, but I ran a 150 shot on my 350Z. It was a wet system. Wet systems don't require you to be able to tune the ECU (which we couldn't in the 350Z at the time). Wet systems supply their own fuel, so the mixture will be spot on if you jet it correctly. You don't have to worry about the MAF and ECU trying to figure out how much fuel to add. A window controller is a must, of course.

 

A 'nitrous' tune is retarded timing and a richer WOT fuel curve.....It doesnt get any better for safety than the stock tune.

Dry shots stay at the PCM's programmed air/fuel ratio since the MAF measures the amount of added air comming in and adds fuel so they are no more dangerous than a wet shot unless you go past the injectors/fuel pump's ability to deliver fuel. The wet shot just doesnt rely on injector size. It shoots a pre-determined amount of fuel for a given amount of N2O. The big issue with the wet shot is puddling in the intake which isn't desined to flow fuel.

 

The C6 system is pretty much the same as the late model C5 system. The fuel pump is a PITA to get at as the transaxle must be removed in order to get the DS tank out. The FSU is no joy to re & re either.

Most customers will chose to enhance the factory fuel pump performance using external upgrades such as a Racetronix harness and a voltage booster (KB or MSD). If more is needed a pump upgrade and FM FPR system should be considered.

 

I was waiting for a little more info before installing my dry kit. What about the info suggesting that torque management might close the throttle-body blade during WOT runs to restrict horse-power. Without tuning to eliminate torque management, wouldn't it be really bad if the throttle-body blade closed while you were spraying the engine, or would it just prevent the nitrous from entering the motor? I was planning on spraying a 75 dry shot. I wonder how many people are spraying these cars without tuning?