Anyone spraying with heads/cam, any problems?
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: Anyone spraying with heads/cam, any problems? (Hammer)
Just keep the juice low and you'll be fine. If your heads are still basically stock castings, you'll have about the same compression ratio. Your extra power comes from increased breathing, not increased cylinder pressures.
In theory you should be able to spray just as much to a heads/cam motor as you can to a stock motor. The problem really comes into play with the stock weak pistons. The stock ones aren't really set up for boost or nitrous, so you have to keep either to a minimum. Try not to go above a 125 shot and you should be fine. You might want to install a window switch and a fuel pressure switch to keep you safe.
If you hit the factory rev-limiter on the juice you'll blow it up because the factory limiter cuts fuel, making you go lean which = one blown motor. A window switch set to cut the juice a couple of hundred RPM's before the limiter would make life a lot safer. A good MSD ignition would not only help with your nitrous ignition, but it also has a much safer rev-limiter. So basically if you put a 125 shot with a fuel pressure cutoff, with a window switch and an MSD ignition set below the factory rev-limiter, you should be pretty safe.
In theory you should be able to spray just as much to a heads/cam motor as you can to a stock motor. The problem really comes into play with the stock weak pistons. The stock ones aren't really set up for boost or nitrous, so you have to keep either to a minimum. Try not to go above a 125 shot and you should be fine. You might want to install a window switch and a fuel pressure switch to keep you safe.
If you hit the factory rev-limiter on the juice you'll blow it up because the factory limiter cuts fuel, making you go lean which = one blown motor. A window switch set to cut the juice a couple of hundred RPM's before the limiter would make life a lot safer. A good MSD ignition would not only help with your nitrous ignition, but it also has a much safer rev-limiter. So basically if you put a 125 shot with a fuel pressure cutoff, with a window switch and an MSD ignition set below the factory rev-limiter, you should be pretty safe.
