Kane

iTrader: (1)

Me and Bobby wired that with hard brass piping; and bored a small hole in the side vents about halfway to hold the pipe in place.

The purge solenoid was fitted with a T fitting and then run down the firewall to both sides of the car. A pipe cutter and some brass pipe (like you would use to hook up and icemaker to your fridge) was the perfect solution.

RX-8skater

thanks

RX-8skater

last night i sprayed and i through a cel it blinked like 5 times then turned off.............then i pulled off to the side of the road and checked everything and it seemed ok so i started driving and like 3 min later it did the samething then turned off so i checked again and nothing then i drove home about 15 min and then everything seemed fine wtf happened???????????????

nelsonrx8

Forget this thread i made my car hasn't been found

RX-8skater

plugged up my ap and it read a rke p0039 don't no what that means

Texak

''The RKE code is just a weird bug in the AP firmware. It will not show up in other scanner software and will not set a CEL. It has no affect on the operation of the vehicle or power output.''
-Mazdamaniac

https://www.rx8club.com/showthread.p...t=p0039&page=2

RX-8skater

alright thanks

Jeromie

I know it was said to take baby steps with this process... But I've been waiting for like a year and a half! Let's do this already!

Easy_E1

iTrader: (2)

What do you want Jeromie?

DRFTGTO

So 75 shot seems to be the limit on these motors? I must say thats pretty impressive for 1.3L

wait... i might have to take that back lol
http://www.youtube.com/watch?v=Hhe1hiW0VaM

Flashwing

No a 75shot isn't the limit on the motor itself. The issue is that you need to be able to retard ignition timing with larger shots. The motor is capable of handling plenty of Nitrous but without an ability to control ignition timing or larger amounts of fuel delivery you can't go much larger at this moment.

Brettus

iTrader: (2)

Does a motor on nitrous ingest more air ? If so it would register as more load and there is no reason the timing changes can't be made on the load vs timing tables . Same with the fuel ....

Easy_E1

iTrader: (2)

The car will read lower Grams of air with the shot active. The nitrous replaces (through displacement) a little bit of the incoming air through the MAF. The nitrous is after the MAF so the MAF does not read anything but a smaller reduction of air intake. I loose about 10-20 Grams of air through the MAF with the shot active. But of course that loss is mute due to the added amount of N2O.

Brettus

iTrader: (2)

wow - I would never have thought that . Thanks for killing that idea

Brettus

iTrader: (2)

I wonder if you could put a resistor in the maf wire (reducing its voltage) going to the ecu that could be set up via the MAF scale to run the standard tune .
Then when the nitrous kicks in the resistor is taken out of the circuit to make the maf number and therefore load higher thus allowing you full tuning of fuel and spark via the stock load tables

Rote8

I have been told the ECU treats any MAF readings over 350 as 350.
What about adding methanol when the NOS/Fuel sprays?

Flashwing

The MAF can be adjusted to handle higher amounts of air but when you reach the maximum readout it doesn't see anything higher.

The only real solution to all of this will be some means of altering the ignition timing without having to do any tuning to the vehicle. Right now the only means you have are altering the ECU flash which works only at one place...the drag strip.

Otherwise you'll be stuck with reduced timing during your normal driving which will of course mean reduced power output.

Being able to alter the ignition time only when the nitrous is spraying and do so without having to seriously alter any electronic parts will be the only method that will solve this issue for nitrous owners.

Rote8

Someone needs to create a dual ECU harness and switch; switch between the two ECU with different maps at will, while running.
/It would be cool.

Kane

iTrader: (1)

http://www.chevyhiperformance.com/te...ols/index.html

http://www.thunderracing.com/catalog...d=549&pcid=270

http://www.off-roadweb.com/tech/0907...all/index.html

It exists - just gotta make it work with the RX8.

Brettus

iTrader: (2)

Which is EXACTLY what the suggestion I made would do .

Normal running would see ,say, 190-200g/s max. with resistor in place and 220g/s without it . Giving you a distinct gap in load from NA to nitrous and enable full tuning on nitrous via the stock maps .

Brettus

iTrader: (2)

and you have been keeping it secret all this time ?????

Easy_E1

iTrader: (2)

Any time.

Droopy72

Any new updates???? =] i just read every single post and im very excited!!!

Rote8

Sniff the whip cream....

ira1377

as soon as they find a way to handle 100 150 shot ill buy aswell