Unusual Driving Occurances In R33 Gtst

[SLYLNE]

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.

[paulr33]

you cant tune the stock ecu

[RPR33]

what sort of ecu?

O and as far as I no you can tune a stock one.

[rob82]

Has the car got a catalytic converter? And is the base timing correct?

[tigr33]

white smoke CAN mean a crack in the head gasket, from previous experience(not in skyline tho)...

as for the flames, could be coz ur cat's been gutted, pull it out and hav a suss if u got time

[SLYLNE]

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.

[mad082]

good chance the flames are due to you 'less restrictive and HIGHLY illegal' lack of a cat.

[Munna1]

I bet your car is running extra rich with those mods get a SAFC or Power FC

[2BNVS]

id agree with the comment that it would be the lack of cat...mine does the same although runnin alot more power but the lack of cats can aid in producing flames

ben...

[SLYLNE]

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

[Rolls]

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 October 9, 2006 by Rolls

[SLYLNE]

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 October 9, 2006 by SLYLNE

[bloody Hoon]

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]

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

[Links]

I would suggest getting a cat.. if you back fire and someone sees you.. could be big $$$$'s.. your choice though..

Sounds like you fixed the misfire though which is good..

[SLYLNE]

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 October 10, 2006 by SLYLNE