I'm noob with nitrous

My '94 has boltons + cam. and I think nos will be great for the drag strip.


What are my good (safe) options ?

1- wet ? dry ?
2- how much hp ?
3- any other recommendations ?

 

Stock bottom end?

Wet
100-150
There is a killer kit in the for sale section.

 

http://forums.corvetteforum.com/c5-p...post1584491462

Linky

 

Yes , stock bottom end

 

The ZEX LT1 Nitrous kit, is a simple easy to install kit with a lot of safety built right in!... http://www.zex.com/zx/lt1-dry-nitrous-systemhtml/

 

Hi Buddy have your timing right!!! If you don't have a motor on hand

 

Looks good with the price , Do I need a tune for this kit ? And why many told to go with the wet kit !!


I don't have a motor lol. And I dont want to blow my motor !! It's hard for me to tune the car , all tuners don't work with LT engines, all LS.

 

Wet kits are generally safer for a beginner but, unlike the ZEX kit, most Wet kits don't have a built in fuel management system which won't activate the nitrous if the fuel ratio is not correct. This is a good safety feature since most nitrous engines are destroyed when there is too much nitrous and not enough fuel.

No, tune needed but, generally you should Retard the timing 1*-2* for every 50hp shot of nitrous used and also, use one step colder spark plugs and Premium fuel.




.

 

[QUOTE=GKK;1585525745]Wet kits are generally safer for a beginner but, unlike the ZEX kit, most Wet kits don't have a built in fuel management system which won't activate the nitrous if the fuel ratio is not correct. This is a good safety feature since most nitrous engines are destroyed when there is too much nitrous and not enough fuel.

No, tune needed but, generally you should Retard the timing 1*-2* for every 50hp shot of nitrous used and also, use one step colder spark plugs and Premium fuel.


You saying no tune is needed. But is retard the timing and colder plugs a tune up. I think so. Look Buddy I know your trying to help this poor guy and so am I. I go drag racing a lot. I have a Vega racecar on all motor. I see guy's with nitrous all the time bowing the rods right out of the motor= holes in the top of pistons blown head gaskets let alone oiling down the whole track. This guy has a stock bottom end nitrous in time will blow the motor it's guaranteed right. You banging the bottom end with 50 to 500 horsepower all at once. I think he should take a step back do some more homework. He can have a nice car to cruse in or build a racecar with a strong bottom end to start off. Also you know as will as I do you make one change you have to make others.

 

A Stock bottom end LT1, can easily handle a 50-125hp shot of nitrous all day long.

99% of the engines that do get damaged by the use of nitrous oxide, do not have the necessary safety cut-off switches and gauges installed or are using more nitrous than the engine can handle.

The ZEX brand nitrous kit is specifically designed for use in a stock LT1 engine.





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A controller would be a good idea. as would an aftermarket ECU. My ECU when armed turns on my N20 over 29 mph, on at 3000 rpms, off at 6000 rpms. automatically retards timing 4 deg . Plugs are in heat range increments of 2. I use accel shortys at 10 heat range gapped .030...

 

http://www.jkvette.cz28.com/whats_new_3.html

That's sort of a primer I wrote on nitrous 6-7 years ago. I don't agree with all of it anymore, but it should get you going in the right direction.

On your car, wet is probably a safer bet.

How are you tuning for the cam? If you aren't doing the tuning yourself, there's no way to know how much timing is in the car. Before you spray it, I think that is something you must know.

If you don't have a way to datalog the car to watch for knock / detonation, AND you don't know how much timing the engine is seeing, AND it's your first go-around with nitrous - you are setting yourself up for failure.

 

GKK and Dragracer , you guys should make an agreement lol




You want me to read something you don't agree with it ?

My car is tuned since I bought it with all the mods,think that was done in the US. I was searching for a tuner and I couldn't find any !! No LT tuners

I contacted pcmforless and they are ready to help, but that would be some kind complicated since I'm in Saudi.

Thats why I'm asking before doing anything. To avoid failure

 

First off, given the choice....do boost. Supercharger or turbo.

The annoying thing about nitrous is when that bottle gets low on nitrous, you wont get the same power you did with a full bottle. This is true even if you are using a bottle heater to spray at the same psi. There are some new technology nitrogen nano assisted pushers that piggyback onto your bottle.

Next, nitrous builds strong torque down low, but rapidly loses it as rpm increases due to less fill time on each cylinder.

all this said, if you want to do it...

Go wet 100 shot. i used nx wet system.

Consider a fuel pump ugrade to walbro 340 if you go over 100 shot. Its cheap/easy to do on these cars. Ive heard of failures occur the instant someone tried a 150 shot the first time.

Next you need a window switch. I had mine set to spray at idle (need it to for starting launches) and then shutoff right before redline.

One time i got wheelspin at launch and the motor spun up so fast that i couldnt get my foot off the pedal fast enough before it bounced off the rev limiter.

If i didnt have a window switch and it continued spraying at the fuel cutoff rev limiter, it could have been a disaster.

So definitely wire in a window switch.

I also tried to get the fuel pressure safety switch to work but could never get it to work right so i bypassed it

the same bottom end is now more happier supercharged with 12 psi boost and meth/water injection. I have thought about adding nitrous back for starting line power