stinksause

iTrader: (5)

What about using the maintenance ports ... its a thought ...

reddozen

iTrader: (1)

Doesn't the S2 use those for something though?

Phish806

iTrader: (4)

echo.... echo.... just tap the existing manifold to support a dual nozzle setup. Take care of those issues. Next step would be controlling timing only when the nitrous is used.

stinksause

iTrader: (5)

and extra fuel ...

Phish806

iTrader: (4)

you dont need extra fuel... hence a wet shot. It adds the fuel through the jetting along with the nitrous.

stinksause

iTrader: (5)

true ... i dunno where my head was

Lancifer

Yes! WW is THE spot and Lui is my favorite mechanic of all time! So glad to be working with him on this project.

Yeah I am trying to cover my bases and ensure I have enough capitol to get all the parts needed without my not having thought of what could go wrong. LOL

ie: Don't wanna think the AP is gonna handle proper timings, fail to get a piggyback and then find that nope the AP won't do it and I need to buy a piggyback.

LOLz

edit: @RotaryTherapy: You can buy a kit to make your own N2O refill station. The kit is about 200-300 bucks (can't remember the name as I type this) that you hook up to an air compressor. Free N2O refills! That's the route I will be going.

@All: Yeah I was thinking direct injection would fix that AND the rear rotor getting more of the shot than the front rotor. Then the biggest hurdle is the timing. From what I understand of piggybacks... they can adjust timing independently, even if we just adjust timing within a certain RPM range... but I think if it was to be set to only do it within an RPM range I'd have to have an automatic N2O delivery based on that RPM range in WOT. But that sounds convoluted. Of course.. pro tuners would know better than I. *WAVES AT STINKSAUCE*

Lancifer

@Charles R Hill: That is a very good point. I have not seen evidence of pooling being THE issue, but you hear the same thing over and over one tends to believe it after a while.

If the issue really is about closed loop usage can that be changed to not go closed loop, tho I would not think to ever use this sub 4.5k RPM and would it destroy gas mileage? Even if not it would seem that being mindful of your usage would fix that problem right away. A/Ts have it way worse than the M/Ts. RPM control FTW!

mhawk1134

hey guys, dont mean to thread jack but, I have also been considering installing the Zex wet kit in my 04 M/T 8 but after reading some of the comments i'm a bit hesitant to now. I did a bunch of research on the site and figured that a 55shot would be fine and i wouldnt need to retard timing or upgrade my fuel pump, lines, etc.
Is this pooling of the no2/fuel mixture something that should stop me from installing the kit? (can i even use the BHR spacer with a stock intake?) would maybe installing a wideband a/f gauge help me read when im about to detonate and blow crap up. lol

200.mph

iTrader: (9)

55hp zex kit is fine. you can use oem intake with bhr spacer and you dont need to upgrade your fuel system. just spray smart

alexbpl

Hey guys I'm from the UK and wanting to nitrous my RX8. I have put nitrous on Fiat/Lancia motors before and this is where my experience is but never rotary.

Anyway, lets keep this thread going. I have a few points I would like to ask / suggest.

With regard to the air:fuel mixture going out the window with the use of N20, has anyone considered putting the jets ahead of the AFM / IAT sensors to help combat the lean mixtures experienced?

I would get the BHR manifold spacer for the nozzle installation, but I believe some answers lie in putting the jets ahead of the sensors as the ECU is fuelling for paramaters 'upstream' of the sensors.

Would putting the jets infront of the sensors not cause the IAT and MAF to sense colder air therefore requiring more fuel and make the ECU trim for a richer mixture - thus avoiding a lean fuelling?

In the UK quite a few people are using a 65 shot on standard mapping/fuelling/ignition. Most of them do no share the same concerns as you guys have for the 75 and up shots. Maybe this is because someone tried the 65 shot, found it worked ok and the word spead. Then again 65 shot isn't a great deal more than a 55 but a 75 is more noticable.

Also I have never experienced inlet pooling of N20, even using multiple foggers in a wet shot system. It sounds more like bad application of N20. (using a comparison of throttle position vs engine rpm)

wcs

iTrader: (2)

1) Why do you think the afr's go out the window? On a wet setup you have a fuel jetting to control the right amount while activated.

2) Installing the nitrous nozzle ahead of the Maf sounds crazy. IMO you'll freeze the Maf/IAT not to mention the crazy effect it will have on the Maf readings themselves. If it didn't completely ruin the Maf you'd likely pegged the maf wide open.

I ran a 75 shot, and experienced a manifold back.
You're right ... its way more noticeable.

The best solution would be a direct port injection on the LIM.

alexbpl

Sorry with regard to before the MAF I meant with a dry shot but after the MAF the extra fuelling is supplied with wet shot so no need to worry about the A/F ratio's as much.

Manifold back. As in manifold backfire? lol

wcs

iTrader: (2)

LOL
Yeah I had a manifold backfire.

I was lucky it only destroyed the Maf Screen, intake seemed undamaged.

I'm boosted now, but sometimes when I'm having issues I wonder if there are some small cracks.

How much is it to fill a 10lb bottle in the UK?

In Ontario Canada its 10 cdn per lb.

alexbpl

Similarly priced. About £60 for a 10lb bottle. A lot of places actually charge you more for using an american brand NOS, NX etc as they deem the kits 'inferior'.

What they actually mean is they are the same - but cheaper - and because of they they try and screw you for a refil out of jelousy!

Funny how some people are a$$holes like that.

Did you have a ZEX kit? Just wondering what fittings come for the fuel lines......

wcs

iTrader: (2)

Yeah the Zex 8021 Nitrous System kit

I can't remember atm, and I'm away on from home right now, so I can't check.

Chill'n my heals over in Swansea Wales and Brecon for the next week.

I would recommend using the Aeromotive Fuel adapter

http://blackhaloracing.com/?page_id=60&category=19

edit -- grammar

alexbpl

Thats insane! I saw the adapter a week ago and spent like hours searching for it again.

Your coming to Wales from the states? Work/business/family I take it? Nobody in their right mind would optionally leave a warmer nicer place for Wales! hahahaha

PhillipM

Bah, if I'd have known that we've just been racing in the Welsh hills, you could have come for a ride around on a lap.