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Unusual Driving Occurances In R33 Gtst

SLYLNE

By SLYLNE,
in Engines & Forced Induction

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SLYLNE Rising Star

SLYLNE

Posted
Posted

Hi ppl

just recently i have noticed that if im in 2nd gear and i flat foot it, around 4-5k the car starts to backfire heaps..and also if im going like 100km and on 4th if i allow the car keep boosting, and change to 5th...generally i see flames out of the exhaust and soon after white smoke. I thought it might be the turbo thats blown and hence the white smoke, but ive tested the turbo and turbo seems to working fine.

as for mods, sitting on 9-10 psi using 32 actuator, fmic, zorst, no bov, everything is else standard.

i understand that the flame is due to fuel and white smoke - water..

but any clue as to why it would do this?

also i have just bought an ecu, so after a good tune i suppose this should go away?

cheers.

SLYLNE Rising Star

SLYLNE

Posted
  • Author
Posted

i still have the standard ecu at the moment. i hav bought a wolf 3d..havnt installed it yet, but will be in the coming weeks.

also i dont have a cat..straight 3" exhaust system, jus find it less restrictive than a hi flow system.

another mate did say it could be due to timing. and no i havnt checked base timing.

SLYLNE Rising Star

SLYLNE

Posted
  • Author
Posted

ok so the flames are due to not having the cat, but why the white smoke soon after? once it was pouring out..i had to wait a min and turn of the car, so it would stop. after i started the car it was gone.

the next day i checked all fluid levels. all was normal. so what could that have been?

cheers thanks for the past replies..really helpful :thumbsup:

Rolls Grand Master

Rolls

Posted
Posted (edited)

Could be a spark related problem if its actually misfiring.

Good threads on that.

http://www.skylinesaustralia.com/forums/in...showtopic=51046

http://www.skylinesaustralia.com/forums/in...showtopic=32356

White smoke though, no idea.

Edited by Rolls
SLYLNE Rising Star

SLYLNE

Posted
  • Author
Posted (edited)

cheers thanks for that..

after reading the threads above..it sort of looks like i have a fair few cracks in the coil packs. I will suss that out tomorrow and tape it as some of the guys have done in the past as a temporary solution.

will keep posted.

Edited by SLYLNE
bloody Hoon Enthusiast

bloody Hoon

Posted
Posted
cheers thanks for that..

after reading the threads above..it sort of looks like i have a fair few cracks in the coil packs. I will suss that out tomorrow and tape it as some of the guys have done in the past as a temporary solution.

will keep posted.

i had the same problem in my 33 good old electrical tape worked wonders on the coils could boost it to 14psi

with no backfiring

SLYLNE Rising Star

SLYLNE

Posted
  • Author
Posted

just finished taping up the coils, running the standard 10psi without any misfiring.

since i couldnt locate any of these so called 'hair line' cracks..i decided to tape up all 6 and yes has worked wonders..red line on 1st - 2nd - 3rd..no misfiring at all, now im happy as larry.. lol

thanks to everyone that has helped me along with this problem and to everyone on the couple of threads linked above.

cheers :)

SLYLNE Rising Star

SLYLNE

Posted
  • Author
Posted (edited)

still anyone know why white smoke comes out immediately after a huge back fire?

is this just water? or something else?

since misfire problem has been solved, i have gone for a few hard runs and havnt heard backfire, flames or white smoke for that matter..just puff of black smoke durin the 1st run.

but would still like to know what the white smoke is? anyone..

cheers

Edited by SLYLNE

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