Jump to content
SAU Community

Recommended Posts

  • Replies 50
  • Created
  • Last Reply

Top Posters In This Topic

Flames popping out the exhaust is most likely due to an external wastegate that is dumped back into the exhaust system. You will need to remove the cat for this though.

Another option is to run rotational idle, this will give you a small fire popping out of the exhaust, you are unlikely to get any huge flames from the back unless you do something stupid, which I don't recommend.

See'ya:burnout:

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-135837
Share on other sites

Paul, give me your advice. I need a turbo, new manifold or keep it standard. Would like an external wastegate but the money to make a manifold is quite heavy. Unless you know someone??

Or could get some sort of drawing plan for some, cause i could quite easily do all the fabricating but I need a plan.

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-135888
Share on other sites

Hicks,

the best turbos are all external wastegate design, but these are for high horsepower. If you just want good power then you can go for a GT2835 (internal wastegate) , which will give you lots of power without the lag. I would still recommend a custom exhaust manifold, the original is very poorly designed.

If you a good with mild steel welding then I could get you a jig, which is a template to build manifolds, this would make it easy for you to build your own.

See'ya:burnout:

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-135904
Share on other sites

Removing cat is highly illegal and will lead to $10,000 (or there abouts, could have been $5,000, can't remember) fines if caught... Flamage is from anti-lag, not rotational idle as discussed in rotational idle thread...

In the old days an extra injector used to be fitted to the exhaust manifold and fired when anti-lag was needed... Now-a-days the ECU controls it all...

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-135930
Share on other sites

The computer measures the airflow at the beginning of the intake tract (assuming you're using a MAF system) and injects fuel accordingly. So when you shift and let off the gas, your turbo is still spinning and the excess air is vented through the blow-off valve. However the computer doesn't know that that air isn't going into the combustion chamber, so while the blow-off valve is going the mixture in the combustion chamber is very rich, thus letting a lot of unburned fuel into the exhaust, where it gets ignited by the hot turbine wheel. Hence flames on shifting.

J

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-135952
Share on other sites

Originally posted by GTS-t VSPEC

Hicks,

the best turbos are all external wastegate design, but these are for high horsepower. If you just want good power then you can go for a GT2835 (internal wastegate) , which will give you lots of power without the lag. I would still recommend a custom exhaust manifold, the original is very poorly designed.

If you a good with mild steel welding then I could get you a jig, which is a template to build manifolds, this would make it easy for you to build your own.

See'ya:burnout:

I could weld it up piece of piss, A monkey can weld mild steel.

Where would you get a jig from? Would they let you have one?

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-136097
Share on other sites

Originally posted by MIKGTR

Too easy in my car 

Step one: change fuel map to +30% rich

step Two: lower rev limit to 4000

step three: flat change at 3900rpm

result: fireball + mushroom cloud

scares the shyt out of tailgaters & pedestrians:D

is that through a safc, or what

Link to comment
https://www.sau.com.au/forums/topic/9077-exhaust-flames/#findComment-136185
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • LOL, all of the CAI like Craig I just need to put a hole saw through my bumper Done and dusted, the car runs, which is nice, I'll take it for a spin when the weather clears up Just need to put the bumper back on for good
    • Brooooo Please send ABS control unit schematic Please! R33 gts25t ABS (Its two plug ecu, black and white) wire colors possible? [email protected]
    • Don't even try to run it on the stock ECU if you're going to have the boost controller bring boost above ~10 psi. I've already told you that. If you use the Nistune ECU, you will need to CAREFULLY read the available documentation for Neo tuning, and read some threads on the Nistune forums, to discover the various things you have to do to prevent the ECU from going bananas when the boost is too high. The is a table associated with th boost sensor that must be modified to prevent it from shitting the bed. This is just one of the things that you will need to do to the tune in Nistune, because the Neo turbo ECU will be expecting to see a number of things (such as the TCS) that are not there, and you have to block the DTCs on those. It is totally not surprising to me that you are having the problems that you are, but the solutions to these problems have been known for >15 years. So just get it done.
    • Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
×
×
  • Create New...