NITROUS OXIDE ( nos / n2o ) advice forum

Seems your divides are cut back a lot further than mine.... So less of an issue....

Yeah, the D blocks go lower than the venoms so everything runs uphill from that point. This ensures lines are purged for next operation (within reasonable time frame ), although when racing, first run always get fuel purged, but more critical for me with much bigger shot of gas .
The pulsoids often end up directly mounted to the blocks tho this isnt any way critical, what is important is that you have 3" of straight pipe feeding the D blocks to allow for equal distribution but ideally you want them as close together as you can but allow for the 3" straight. Have a look at ET's pics in this section, he is now running a gravity system and has posted some install pics up

Steve

Right things seem to be moving on rather quicker than i thought they would, hell it's only money!

this is a mock up of my fuel lines. (i'm right that fuel is red? (i'm such a newbie!))

i'm going to ask loads of stupid questions now so please forgive me,
1. how exactly vitally critical is it that distribution pipes are the same length?
2. depending on above could the inner 2 pipes be made say 30mm shorter? to give a softer start? i.e. middle two just before outer two? if the nitrous lines were adjusted to match?
3. those radii look a bit tight don't they?
4. that blue d block is for mock up only, red one one way....
5. yes, the venoms stick into the inlets a bit too much, i'm happy here as i've done dyno testing on tractors with students and looked at power reduction vs inlet restriction and there is only noticable power loss when i restrict a 2" inlet to 1/2" !!!

thanks for the tip on using a punch for the hole in rubbers Trevor, i put the punch in the drill and it does perfect holes!!

more images...

i'm thinking that they are a bit tight.

Nitrous lines plumbed in today... they are a tad close to other things will probably need to shield with something. any recommendations?

Both venoms installed under rubbers look tidier and easier to do. In the inlet the outlets are above each other fuel underneath NOS in the center above the fuel.

Question... to feed the D block inlets do i use 5mm nylon tube?

i see what you all mean about gas being addictive, and i haven't even got a bottle let alone been out with it yet HAHAHAHAHAHAAAAAA

I'd have turned the block round so the outlets didn't butt up against the ally casing.

Even if that makes the pipes a little longer, it's actually beneficial to have the nitrous pipes a bit longer than the fuel.
I'd also run the central D-Block outlet pipes to the middle 2 cylinders with it mounted that way.

Thanks Trev. that's the difference between 30 years and 30 minutes experience. bloody obvious now you've mentioned it.!!

If those pulsoids haven't been dispatched yet can you bung 2m of the 4mm blue pipe in as well please. ?

many thanks,
Neil

yes can you send a load of olives too.

many thanks,
Neil

OK I'll sort that for you today.

BTW the only used red fuel block we have in stock is an early design that is hexagonal shape with a different port layout. None of that will affect the performance but thought I'd mention it before sending it out to you.

no problem hex is good

Parcel packed and on its way to you.

any tips on bottle mounting on a bandit?

also anyone know of a bottle filler around the crewe/nantwich area

also anyone got a 2lb bottle!!!

can't be bothered with this waiting lark anymore.

even getting this far has made me want to get ON IT!!!!

Looking very good now!!!

Have you had anyone check to see if we have any used 2 lb bottles in stock?

please can you check to see if you have any used 2lb bottles in stock? i don't mind what it may look like, anything too new won't fit into the style of the rest of the bike !!

been looking at Pingel fuel taps...they are expensive!! would the standand bandit one be OK on reserve? or is there another make of tap similar to pingel for 10th of the price? i've heard that Harley davidson 3/8" taps fit the bottom plate on bandits is this a viable option? do i actually, really need a tap for upto 75hp?
what i really need is a bottle, but if i get a tap then can't afford bottle

I've hogged out stock taps to flow more before now, so that might be an option you'd loke to consider.

what sort of flow do i need from the tap? i've read the rule of thumb 100hp/100ml/min (is that right?) and probably need that explaining a bit more...

is this measured at the outlet of the pulsoids or at the injector? in which case if at the injector does it need to be divided my how many cylinders you have? or at the pipe that goes into the injector for ease of use? but if this happens then the pipe will be lower than the injector nozzle and would flow more due to the head above it. whatever i can imagine plenty of spilt fuel to come.

i'll be street use only so. personally i don't think it'll be too bad, but then don't want to run lean due to lack of flow.

Come on Neil, you've got to bring it to the Pod

100hp will be 100ml in 10 seconds as a total fuel flow.

Ideally you need to measure this from the actual injectors into a pot of some sort. This will give you a real reading of actual fuel flow with all the system resistance taken into account.

i wouldn't want to embarrass you!

right i'm getting it now i think...

so once the system is complete, i measure the flow from all 4 injectors as close to insitu as i can get, lets say this delivers 80ml in 10 seconds then the system has the capacity for 80hp?
i suppose people do one injector then multiply out?
or do all injectors individually to check for equal delivery rates.

or more to the point, myself.

(any tips on WOT starts?....oh and what is that tree thingy? and them lights? what is deep staging?)

I'm not even going to rise to that
Seriously, I'd love to see you run this beast

not as much as I would. just waiting on a chap 10 miles from me that possibly does re-fills. then I'll get a bottle. we do loads of gas welding at work so am looking at the feasability of a 88lb bottle, we already have contracts with BOC etc. by the sounds of it and the scareness of NOS i could do a roaring trade on saturday mornings! should be getting some more bits arrive this week!

shopping list is TPS switch, bottle, gauge, some pipe, some fittings. then i'm done.