Nitros

Re puds question, is it affected by not having a progressive controller on your setup marko?

ok first one - the dip - nothing to do with the nitrous, i get it on the normal run also - its due to a certain amount of cam overlap at that point where my cams are switching from about 230deg to about 290deg... this will be sorted with some pulleys eventually. i guess its just more evident with the nitrous on. so, nothing to do with lack of controller

why it drops off at higher revs - my bottle was almost empty and pressure was quite low. this is going to be addressed with a heater and a refill

thirdly - torque curves, yeah here you go. notice the same cam overlap exists tho

http://img.photobucket.com/albums/v4...2/Photo018.jpg

dip or no dip, and eith it dropping at higher rpm, it feels fantastic!

So with a full bottle the torque curve should be just shifted upwards by say 50lbft or so then? If so, that is bloody good!

something like that puds yeah, obviously it will vary slightly but that as a guideline yeah. ill be ordering a bottle heater this week so i can hold the higer torque and bhp figures even on low bottle

Marko, I notice you can get a gauge for the pressure of the bottle, is this in the car or on the bottle?

Made up my mind to get mine done, just juggling when and exactly what i want...

When you change from 25bhp to 50bhp etc, do you have to go back to the fitter, does it cost again?

going from 25 to 50 with the wizards costs you £12 - thats for the larger jets. its a 5 minute job to fit them and to be honest fitting the kit itself is only a 3 hour job DIY.

i dont have a pressure gauge fitted at present but when i do it will be in the car.

go with the wizards kit, its guaranteed for life and has yet to fail on any cars. you will start with a 25hp shot, set this up perfectly and then fit some cooler spark plugs and go to the 50hp shot. i wouldnt recommend any higher without a controller. also at 50hp you will need to run higher octane fuel. i run the 97ron and its perfect. at 50hp the increase in torque and acceleration is very very impressive. if you have the money available i would recommend you also fit a bottle heater, there about £175 but will make sure the pressures are maintained so you dont get a drop off like in my example! with the heater its predicted (by trev, the wizard himself) that i should get close to 220bhp and 220 torque. that is a LOT for such a little engine

you could also join the wizard forums and ask, trev visits them daily and is the most helpful company director i have ever came across!

NITROUS OXIDE ( nos / n2o ) advice forum • Index page

Originally Posted by Stevie28

Marko, I notice you can get a gauge for the pressure of the bottle, is this in the car or on the bottle?

Made up my mind to get mine done, just juggling when and exactly what i want...

When you change from 25bhp to 50bhp etc, do you have to go back to the fitter, does it cost again?

You can wave goodbye to your warranty then!

meh. warrantys. pah

Originally Posted by marko

meh. warrantys. pah

Yeh stuff warranty............ mind you if something went wrong just take the kit off and back innocent to the dealer?

exactly! in theory a correctly setup nitrous install wont cause any damage to the engine unless you get greedy and whack too much in too soon.

Marko - what delivers the extra fuel necessary when the nitrous is injected?

pud - the nitrous kit comes with a second solenoid that you link into the fuel rail and this delivers the extra fuel in with the nitrous in such a way that they are mixed into a vapor before reaching the engine.

i just ran out of nitrous this morning, 3 weeks it lasted on the 50hp shots!

best ring my mate for a refill!

Best get that Molybdenum Steel, Tuft Rided, seven main bearing crank, oil jet cooled cylinders, massive oil cooler radiator, Etc. Etc. installed first.

Originally Posted by zulu ferret

Best get that Molybdenum Steel, Tuft Rided, seven main bearing crank, oil jet cooled cylinders, massive oil cooler radiator, Etc. Etc. installed first.

That shoud just about make things more durable, hey ZF

pah - ye of little faith eh

Cheers Marko.. I was just thinking the other night what stops it running lean so I thought I'd ask.

no problem mate. if you want to know the inns and outs have a look over at Nitrous kits for cars and bikes - Wizards of NOS under the technical section, plenty of FAQs in there and if you dig deep enough i think there is a few online manuals too.

just FYI, off nitrous i run an A/F ratio of about 12.5:1, on nitrous this is closer to 10:1 but with the added fuel that enters with the nitrous to balance it out nicely.

My god - I have no need for the car to be any quicker day to day, but those times when your foot's buried in the carpet I feel it could do with extra go - How much is one of these kits fitted, and as I'm in Cornwall who'd be up for fitting it?

Looks fantastic, and would definitely achieve what I want without the expense of supercharging the 3.0 V6..