hello, i have 90 vette with the l98 anyway i am looking to put on a nos kit another form member has for sale. and i have more than a few questions, how much nos can a stock l98 handle, are all systems a "push button" system? i dont plan on useing it a lot just spur of the moment kind of thing, what exactly does a "timer" do, remote bottle opener? what do i need to do to my engine to use nos and how will it effect my daily driving and mileage? im not looking for tons of power maby 50-75hp why cant you leave the bottle open when not in use? how long does a 10lb bottle of nos last. like #20, 5sec shots? im looking at a zex system please feel free to post you expirences ideas imput ect thanks in advance for your time sincerely Pat

 

As long as you don't run lean on nitrous your engine should take a 100-125 shot of nos no problem.the zex system is probably the safest dry nitrous system out there ,this system is triggered by the throttle position sensor under full throttle and you would have a switch to turn the system on and off . it also monitors bottle pressure and adjusts fuel pressure accordingly would tune up the car and make sure my stock injectors are functioning properly ,its a good idea to have your injectors rebuilt regardless if your running nitrous or not there a vendor on here that sells rebuilt injectors for a wicked price .probably the best bang for the buck is a nitrous kit ,if done right you wont have any problems.

 

cool thanks, anyway i just installed a new set of injectors from Fic injectors bosch III so i should be good? do i need diffrent heat range plugs or to change stock timeing? thanks again Pat

 

You're not getting many responses because this question is asked constantly in here. It's been asked and answered probably 1,000 times in this forum.

It doesn't sound like you know a lot about nitrous so you might want to read up on it a bit. There is a long write up about it on my website, www.jkvette.cz28.com. It's long, so only go there if you have time to kill, lol.

To answer your questions, in the order you asked them:

150 is widely considered the upper side of what the engine can handle. Many people have been running 100 and 125 shots for years without issues. Most who try to go over 150 don't make it very far without a failure.

All systems have some kind of activation based on a button. Normally, you will flip a toggle switch inside the car. That will arm the system. Next, when you floor it, there is a switch mounted on the throttle linkage that gets pressed only when the linkage is at wide open throttle. As long as the arming toggle is flipped to on, and this wide open throttle switch is pressed, the system will be spraying.

I'm not sure what you mean by timer, other than maybe a progressive controller. That's not really entry level stuff, but a controller will allow you to bring the nitrous on gradually as opposed to smacking the engine and tires with the entire shot all at once. For example, if you have the 100 HP jets installed, you arm the system, and floor it in first gear, the nitrous system is going to add 100 HP to the engine basically the instant your foot hits the floor. With a progressive controller you can make the system come on over a period of time. So, when you first floor it the nitrous kit may only add 10 HP. Then, over the course of the next 2 seconds, ramp the power up to the systems full capacity of 100.

You don't need to do anything to your engine. You could pull some timing, but the stock timing on the L98 is conservative, so I think you'll be fine on a 100 shot. Run 93 octane and have a good time.

It won't affect your daily driving at all. You'll lose some cargo room for the bottle in the back, but other than that, there is no affect on the normal functionality of the car.

You normal mileage will not suffer. When spraying, you will use a considerable amount of gasoline. It's not like you can watch the gas gauge move or anything, but it will use some fuel.

The solenoids are not designed to stand up to 1000+ PSI from the bottle for days/weeks/months at at a time. That is why you can't leave the bottle open all the time.

A 10 Lb. bottle will normally last me 10 quarter mile runs, with the last 3 runs or so falling off slightly. Roughly one Lb. of nitrous for every 10 seconds of acceleration on a 100 shot.

Never used Zex, but most of the entry level kits are pretty decent. I've head bad things about NOS solenoids, but I've never had a problem with them.

 

ya i guess my searching skills well um suck. anyway i really apreciate the post and link to your website it made worlds of diffrence! thanks sincerely Pat

 

I hope my post helped.

As far as searching, there isn't much to it, especially on this subject. If you scroll to the bottom of the first page of threads, there are 2 or 3 posts very similar to yours.

 

I run a zex dry kit on my LT1. See thread here. http://forums.corvetteforum.com/show...hlight=nitrous

 

Very informative and well written treatise on N2O. Your install pictures don't include the full install info -- where did you place the tank? Can a small tank be placed in the engine compartment (I'm thinking near or in place of the coolant overflow tank), or MUST is be placed outside the engine compartment?

 

Thanks.

Yeah, I haven't gotten around to updating it or anything. I guess I could go kill some time on there now.