G50 on Nitrous

[Clyons0203]

I did a search thru some old post on this forum about nitrous. I saw in several threads were people said it is bad to spray during a shift. why is that bad??

And jwt made a nitrous ecu for the G50. Does it spray during a shift?

[CrimsonQ]

I did a search thru some old post on this forum about nitrous. I saw in several threads were people said it is bad to spray during a shift. why is that bad??

In that split second between shifts I imagine it could cause the engine to rev to high before the next gear? Common sense would say its bad on the trans not the motor.

Wes (elwesso) has a nitrous setup.

[superuber]

i have the JWT nos on my 95. The reason is it is hard on the trans.Putting that much power through the trans can cause much stress.It is really fun though!

http://community.webshots.com/user/neheadsuperuber

[Clyons0203]

So whats your setup and do you spray during a shift?

[superuber]

I run a JWT 100 shot nos system. My JWT ecu supports my nos. Basically the ecu controls the shot. When I "arm" the system at wide open throttle the ecu backs off timing, richens up injectors, and throws the shot in. All I do is arm and floor it. I have run 10 bottles trough it with no problems.What a hoot!!

http://community.webshots.com/user/neheadsuperuber

[Clyons0203]

so when it shifts, does it continue to spray?

The ECU must know when the car shifts and JWT has programmed the nitrous to cut out or something??

I dont want a 100shot anyway. I want something like a 55-75 shot, zex kit

[CrimsonQ]

so when it shifts, does it continue to spray?

The ECU must know when the car shifts and JWT has programmed the nitrous to cut out or something??

I dont want a 100shot anyway. I want something like a 55-75 shot, zex kit

Does Robert build the ecu for spray?

[superuber]

The shot happens so quick. It has never shifted on me. Aw, c'mon get the 100 shot. Anything less on the Q is pointless. I think Wes is going bigger! The shot jwt recommends is .052, which is 100 shot. Wes said he might go with a .060, which is maybe 125 shot? It's still really safe.Go for it!!!!

http://community.webshots.com/user/neheadsuperuber

[superuber]

The nico ecu does not support nos.

http://community.webshots.com/user/neheadsuperuber

[Q45tech]

And could be seriously dangerous: the Nico ignition advance., extra lean fuel [compared tp oem]........... plus NO2

[elwesso]

The JWT N20 program is pretty crude.. It basically just dumps fuel in... HOWEVER THEY HAVE TO DO THAT SO PEOPLE DONT BLOW THEIR CARS UP! Theres no mixture control, just dump fuel [80% DC give or take] and give a tiny shot of nitrous for some power....

@ 80% DC you could probably run 150 shot with some margin of safety.

.052 jet is actually about 125 shot, 100 to the wheels give or take.

Robert CAN build a nitrous ECU but he does not because

a) Doesnt have the timeb) doesnt have the interestc) doesnt have the nitrous system!

now TECHNICALLY the JWT nitrous is supposed to cut off at about 6500 RPM, but I dont think it does... When the trans shifts the ECU backs off timing for just a split second. So at WOT youll be chuggin along at 300HP at the trans, and then while it shifts it backs the timing off so it only has to shift through maybe 100HP or so.. (numbers are made up for illustrations sake)

[superuber]

Thanks for clearing that up wes! I don't worry about numbers and such...I just flip the switch and go!

http://community.webshots.com/user/neheadsuperuber

[elwesso]

i dont worry about it too much either... i just want to be fast as possible!

[superuber]

Wes, I am looking to purchase a larger jet and was wonderinghave you run your .060 shot? If so, how was it?



http://community.webshots.com/user/neheadsuperuber

[elwesso]

Hey man... no i never did run the 060.. In fact, when I bypassed my bottle opener i accidentally overtightened the fitting at the bottle and i have to replace the fitting because I cracked it..

Will have it replaced on the 5th probably or sometime in that area.

[Jeff Williams]

Wes, can Robert copy the JWT Nitrous program and add it to my current NICO ECU?

I am interested in adding a 100 shot to Lola, but wanted to keep the NICO ECU for dailyt driving, with the Nitrous option and a few others.

I would like to upgrade the current one I have.

If this is possible, shoot me an email.

[Q45tech]

The mistake most make is not taking time to calculate what a HP jet number does at less than 6,000 rpm............draw a torque curve in lb/ft vs rpm...............a 100HP at 6k = 88 lb/ft at 6k but 175 lb/ft at 3,000 rpm and 240 lb/ft at 2200 rpm....................132 lb/ft at 4,000 rpm

Unfortunately, the RE4R03A is not designed to survive [for long] a higher torque level..................even the torque up from a minor ecu safety removal exceeds the specs [~~300 lb/ft].

Applying 300+132 =432 lb/ft frequently is a good way to buy a new transmission............a 6 psi supercharger does NOT create this much torque because the boost starts low at 4,000 rpm and grows with rpm.

Use a pulsed control system for the Nitrous if you engage below 4,000 rpm unless you stay with a 50 HP [jet] as that only exceeds the transmission max torque spec by ~~ 20-25%.

Not good to buy a transmission with 100,000 WOT shift cycles then destroy it quickly.............each Nitrous run takes how many: hours, days, weeks, months, years........ off the life of your transmission

[yodawill2000]

Sorta off topic here but I saw on sparkplugs.com that the platinum plugs are not recommended for NOS applications.

~~Talk amongst yourselves~~

lol

[Q45tech]

Hard to syncronize the fuel with the Nitrous because they are injected at differing distances from combustion chamber.............calculate the varying time delay and the mass flow .........cold gas vs air vs fuel at what temperature and density.

[elwesso]

jeff.. he can make a nitrous program, but is unwilling to market them because he doesnt have nitrous to test it with...

The JWT setup uses a seperate board in the ECU, and theres a relay outside of the ECU that switches it.

[Q45tech]

Even the JWT system is just an all or nothing.A safe system that will not compromise a transmission life from 7 years to 7 months or a 50 WOT applications REQUIRES a separate adjustable NITROUS SOLENOID pulse control that considers rpm at requested engagement and reduces the duty cycle pulse the nitrous fast but at a 30% rising to 100% open as the rpms rise from 2200 to 4,000 to 6000.

If max acceleration is a goal spinning the tires at launch and thru 1st gear is just a waste of time and tires and a transmission. The problem goes away in 2nd gear at the WOT rpms don't drop below 4000.

[Clyons0203]

I bought it.

[superuber]

Are you going to run the JWT ecu?If not what shot are you planning on?What car did that system come off of?Be careful!!!!! Don't go lean!!!!!http://community.webshots.com/user/neheadsuperuber

[Clyons0203]

no JWT ecu. I have the nico ecu. I know it leans the fuel and advances the timing but I plan on running it with 110 octance gas.

The kit is for V8s, it has jets that range from 75-125. It came off a C6 Vette.

Im going to start with a 75 shot to see how the car takes it. She is *** slow off the line now, so i think i will set the shot to kick in a few 100 rpm above the torque converter lock up point. The lock up point is around 1800 i think.

[Rex]

Do you have the switchable NICO ECU? If so, I'd suggest not using the Nitrous system one the NICO or Mad Max setting. Robert could say for sure, but I think those would be the "leanest" tunes.

[Jeff Williams]

no JWT ecu. I have the nico ecu. I know it leans the fuel and advances the timing but I plan on running it with 110 octance gas.

The kit is for V8s, it has jets that range from 75-125. It came off a C6 Vette.

Im going to start with a 75 shot to see how the car takes it. She is *** slow off the line now, so i think i will set the shot to kick in a few 100 rpm above the torque converter lock up point. The lock up point is around 1800 i think.

Where is all that darn smoke coming from?

The first couple of passes, it will be fron the tires, then it will start coming from the transmission . Just kidding.

Will you be getting timed passes, to show us what a 75 shot will do in a quarter mile? It sure would be nice to have.

Dyno results would be even better!

[elwesso]

With that setup, he can turn it on at like 3 grand and shut it off right before the redline, which is great, shouldnt really do much more damage to the trans, since it can take quite a bit except during a shift!