ito please help nitrous ???????

[bigtony08]

what set up should i go with on a stock 13b s5 motor? im sorry im asking i have looked everywhere and still can find info on nitrous. so even if its a link where i can find info someone plz help. i really wanna go for a 75-100 shot so let me know. and plz dont flame me i did search but i may not have looked in the right place.

[Mobius]

Originally Posted by bigtony08

what set up should i go with on a stock 13b s5 motor? im sorry im asking i have looked everywhere and still can find info on nitrous. so even if its a link where i can find info someone plz help. i really wanna go for a 75-100 shot so let me know. and plz dont flame me i did search but i may not have looked in the right place.

The reason (IMHO) you didn't find any information is because putting a 100 shot of Nitrous Oxide on a stock N/A motor is a good way to blow it up.

[bigtony08]

lol well what do i need to do to run it. im really just interested in the nitrous application and week points with a rotary

[-xlr8planet-]

from what I heard 100 shot is nothing for a rotary

Im building mine around ITBs and a 2 fogger nitrous setup

Increased oil pressure IS recommended, so I shimmed the front regulator and crushed the rear one. I think I posted pics on the first gen section

you should find a way to retard timming.

Im using one fogger per rotor, I chose nitrous express for my setup.

What else ........... dont spray under 3k rpm, dont spray to the rev limiter

If you have more specific questions I will do my best to answer them

[NoDOHC]

The general rule of thumb is that you should never exceed 1/2 the engine's N/A output with nitrous. You can use the 300 shot on a 427 BBC, but they make 600 Hp N/A too. Still, a 75 shot should be Ok on a stock 13B

a 150 shot should be ok on a bridgeported 13B.

Remember that the engine should be making 100Hp before you turn on a 50 shot (3500rpm).

I wouldn't run more than a 75 shot on a stock rotary and I would wait for 5,000 rpm to engage it (unless it is a two-stage).

These rules where made for piston engines, but I think they should apply to the rotary also.

[sen2two]

many race cars with 13b's and 12a's are running 200+ shots. DO NOT EVER EVER RUN A DRY SHOT.

what you really need is an engine built from someone who can clearence everything correctly with some upgraded seals.

from what ive seen, these cars are also running it at full throttle activation. that means from start to stop all the way through the RPM's. but these are race cars. what is your?

[bigtony08]

im runing a 6a msd box so will that help with the timing issue? and its a complete s5 motor with emisions removed and ports wired open also im running a wideband and data loger so that should help with my tuning.

[sen2two]

widebands and data loggers do nothing but tell you whats happening. they do not make changes. and an MSD 6a makes a stronger spark, it dosnt adjust it. so no, it will not help. you need to be able to retard the timing for nitrous.

but if "wet" set-up is done correctly. not much is needed to be done. a wet nitrous set-up adds the correct amount of fuel and nitrous at the same time to make sure you dont lean out and blow t up. it injects the fuel along with the nitrous. do a google search and a lot of info will come up. not much timing is needed to be taken away. you can get a MSD timing retard to manually add or remove a few degrees for when your using nitrous. or not using it.

is this a race car, or street car?

[bigtony08]

its a street car thats gonna see the track too. also im having a local guy who deals with nitrous and race cars tune it. i just really need to know the limitations of a stock rotary and benifits to cons.

[classicauto]

go over to the evil forum and search for a nitrous thread by scathcart he's well versed in nitrous on rotaries.

A hundred shot is nothing major.

You'll certainly want a wet system, and upgrade your fuel pump. I've only ever had experience with a dry 50 shooter locally.....car ran excellent. We used a ZEX system being that, at the time, they were one of the few with a full throttle activation system - which is essential on a standard vehicle so you're not having to release a button when you're shifting.

Look into low output (sub 200hp) wet systems, read the scathcart thread and go at it.

[Boostmaniac]

Originally Posted by NoDOHC

The general rule of thumb is that you should never exceed 1/2 the engine's N/A output with nitrous. You can use the 300 shot on a 427 BBC, but they make 600 Hp N/A too. Still, a 75 shot should be Ok on a stock 13B

a 150 shot should be ok on a bridgeported 13B.

Remember that the engine should be making 100Hp before you turn on a 50 shot (3500rpm).

I wouldn't run more than a 75 shot on a stock rotary and I would wait for 5,000 rpm to engage it (unless it is a two-stage).

These rules where made for piston engines, but I think they should apply to the rotary also.

I have broken every one of these rules and never had a mishap. That engine is still running also. As long as you address fuel and ignition issues, you can push the mechanical power limits of the motor. But that is also something I would never recommend... ever.... especially if you are asking questions about what the engine can handle.

But could you imagine a street port 13B NA on the street with a 200 shot?

"Oh my god..... they went Plaid."