so me and my friends went to the lake today, and on the way there, there are some twisties, so me and my friends are just having fun.....we were going up hill, driving driving.
all of a suddent, A LOT of smoke came out from my car, i wasnt from my exhaust, it was from under the car, so i pulled over and stoped, smoke just starting to come out from my dash, everywhere from the dash. so i turned of the car right away, and waiting for less then 30 seconds, i started my car up again, start driving. nothing is wrong, so i was just waiting for the smoke to clear up.
but after that i notice that my car feels really weird after 6k rpm, i dont know how to explain it, fuel cut, lose boost, or knocking.......i have no idea
even the night before it already felt kinda weird, but the car now drives fine under 6K rpm, its boosting, everything just acting very normal, but after 6K rpm, i just get some kinda fuel cut.
does anybody know whatz wrong?
thanks!

I've always taken my corolla to the auto repair at any time the car 'feels' different. I just don't know anything about cars to know how to describe any difference in 'feel'.

In terms of the now-larger problem, I've got not clue.

blew turbo seal... or weak seal.. oil got by... if you have a cat the oil clogged it...

one sign of a seal getting ready to go is it smokes on start up.. sound familiar?????

not a whole lot of info you have given..

beers :beer:

I thought a cat back was exhast only? How could oil clog it?

Here's a couple questions
Do you still have a cat on?
How many mile have you ran the car with the turbo.
Turbo's don't last forever and you most likely blew the seal but you said that there is a loss of power at 6k which sound like a cat problem. Or mabey you just need to change your plugs.

sorry for the lack of informations, cause i was in a rush to make this tread, i have been really busy lately!
btw...i have a gutted cat right now, and yes it smokes when my car first starts up.
i bought the turbo kit used, i bought it from Scott from mazsport, and he said it has lower then 10K miles, and i added around 2k miles.
i already changed my plugs which Scott recommanded me to used, the all trailing ones.
my car smokes when it starts up ever since i got the turbo kit put on, and i thought itz normal since a stock rx8 does that anyways.
the weirdest thing is, i has no problem with boosting below 6k rpm, and after 6k its just started to fuel cut for like every half a second. so i was thinking it might be my turning problem, but the car ran great for the last half year.
oh btw....we had driven for a while (about 70 miles) before we got onto the twisties, so the engine is probably all heated up already.
hope these informations helps
please ask if you have more questions
thanks a lot!

what engine managment unit are you using??? if the kit was form scott i assuming it comes with the intercepter.... have you had it tuned? did you check for any oil leaks? around the oil pan if your return line has a bung in the oil pan, check your oil feed line to make sure its tight enough... after 6k what type of symptoms are you experiencing... hesitation, sputtering???

what engine managment unit are you using??? if the kit was form scott i assuming it comes with the intercepter.... have you had it tuned? did you check for any oil leaks? around the oil pan if your return line has a bung in the oil pan, check your oil feed line to make sure its tight enough... after 6k what type of symptoms are you experiencing... hesitation, sputtering???

im currently running the greddy turbo kit which is used from Scott with the interceptor, it has been tuned for CA 91 gas.
what will happen if i do have a oil leak? cause i do have oil leak from the drain plug and the return line that goes to the oil pan which i havnt fixed.
what will the oil leak cause?
after 6k the car feels hesitation.
also, the smoke that comes out doesnt really smell, my friend said it might be the smoke from the coolent, maybe coolent got into the engine????? but if the coolent got into the engine, wouldnt the smoke be coming out from my tailpipe??

have you been checking your oil level, since you have a leak?

Oil leaks cause a mess...nothing else unless they drip on the manifold...then they are a smelly mess :)

Tuning could cause the hesitation..

Blue smoke is oil.....black smoke is fuel, and white smoke is coolant.

Usually coolant that is burning will give the exhaust a sweet smell

If you have coolant smoke...you will likely need a new engine :(....

Hope this helps

I concur with what someone said above, sounds like some oil blew by a seal, causing said smoke. Your probably losing some boost, which is why it's not "feeling" right at 6K.

if your stock rx8 smoked when you started it that is the root of the problem..

do you have the oil restrictor in the turbo line????

you might read this thread.. lots of good info.

http://www.rx8club.com/showthread.php?t=81825

beers :beer:

have you been checking your oil level, since you have a leak?

yes...i check almost every 2 days

here is the thing, im still looking for someone or some shop who can help me put the oil restrictor on, i know itz seems easy to you guys....but i really have no clue how to install it.
my rx8 has some white smoke when it starts up cold when itz stock, just like all the other car does, my friend's stock rx8 does that too. after putting on the turbo, it has minor blue/white smoke coming out form my tailpipe when it starts up cold. my car is running with a gutted stock cat, so i can smell any sweet but some awful smell.
the day that my car was smoking, it wasnt from the tailpipe, my friend said it was from underneath my car, near the right side, so i think it is from the turbo.
so now i think i need to either get my turbo rebuild or upgrade to another turbo, but before i do that, i have to make sure it is the turbo that went bad. and also, i need to find a good place that can turn my car before i do anything about it. i might want to bring my car to LA to have it tune.
but i still want to make sure what cause my car to smoke, and nothing afterwards. i know i was kinda pushing my car on the twisties, but im planning to track my car, so i wont be good for a long run.
any info would help
thanks!

sounds like you have an oil leak... you need to find someone that knows something about turbos / rotarys..

this is stuff you cant fix with typing...

good luck.

beers :beer:

I agree with swoope, one thing you can do, tie the wastegate open on the turbo, that will lower your boost a bunch (since the wastegate will always be open). If the smoking stops or decreases it is a good bet the turbo needs to be rebuilt/fixed, whatever you want to call it. If it still smokes and from the same area, the oil feed or return LINE is likely leaking.

Cheap and easy test...might be worth it.

so am i reading the post right that you have not had your car tuned other then the tuning that the int-x came with??? well that could be your problem... you could be getting hesitation from either not enough timing or to much fuel blowing out spark... the reason why you are most likely getting some smoke at 6k (now that there is more info out there) is your feeding the turbo with way to much oil (no restrictor) and its pooring out of the leak that you have... that does not mean you arent getting blow by because you most likely are... its an issue that should be addressed quickly so that you dont ruin your turbo and you are discusted at the whole fi thing....


the oil restrictor addition is a tough one due to the location of the turbo... so i cant really blame you for being hesitant... from my understanding you have to drop just about everything to get to the turbo

If you haven't gotten a custom tune from a shop (i.e. mail-order tune, a chip that came w/ the turbo package) you may want to do that as well; let the shop know what is happening to your car, and I'm sure (if they are reputable) they have heard of it before. They would be able to dial in your car on a dyno much more efficiently than some standard computer map that the company designed.

Make sure your hardware is good first. If all is well, then work on the tuning side. You don't want to try and tune around a mechanical problem.

while you are at it also check your coil packs--power lost at 6k is a classic sign for bad coils---they dont cause smoke however!
olddragger

so am i reading the post right that you have not had your car tuned other then the tuning that the int-x came with??? well that could be your problem... you could be getting hesitation from either not enough timing or to much fuel blowing out spark... the reason why you are most likely getting some smoke at 6k (now that there is more info out there) is your feeding the turbo with way to much oil (no restrictor) and its pooring out of the leak that you have... that does not mean you arent getting blow by because you most likely are... its an issue that should be addressed quickly so that you dont ruin your turbo and you are discusted at the whole fi thing....


the oil restrictor addition is a tough one due to the location of the turbo... so i cant really blame you for being hesitant... from my understanding you have to drop just about everything to get to the turbo

i have had mine tuned by a local store with CA 91 octane
i guess its the oil restrictor that i havnt put on!
so most likely i have to get my turbo rebuild?

so anybody knows a good machenic shop in Nor Cal?
also, how do i know if the coils are bad? where do they locate?

hmmm where in nc??? i know of a few places in that area and i can find someone if you would like... the turbo is probably still good in my opinion... i would listen to dragger though... deff check the coil packs... it could be a combination of problems... if the coil packs have a melting spot on the bottom... they are done and you need to replace them... i would post in the southern forum to see if anyone local to you knows of a specific rotar y shop

the oil restrictor addition is a tough one due to the location of the turbo... so i cant really blame you for being hesitant... from my understanding you have to drop just about everything to get to the turbo

You can install it in the line near the dip stick.

hmmm where in nc??? i know of a few places in that area and i can find someone if you would like... the turbo is probably still good in my opinion... i would listen to dragger though... deff check the coil packs... it could be a combination of problems... if the coil packs have a melting spot on the bottom... they are done and you need to replace them... i would post in the southern forum to see if anyone local to you knows of a specific rotar y shop

i live in Daly City. let me know if you know any places that can help to fix my car.
btw..i've tried full function, i dont really like them!

You can install it in the line near the dip stick.

good to know...i'll go check it out when i get home!

you know i was wonderign if you could do that jason... i wasnt sure how it would flow... but if that works yeah you should deff do that

anybody please help!
so where does the coils locate?

its under the tb/ intake tube... under there is where the coild are located

thanks
now im pretty sure that my turbo is going bad, so i drove my car out for lunch. then i went get gas, after getting gas, i was waiting at a stop light, for less then a minute, there were a lot of blue smoke coming out from my tailpipe, as soon as i notice it, the light turn green, so i started going, then the smokes are gone.
now i really need someone who can help to install the oil restrictor!
i dont think im gonna drive my car any more before i install the restrictor!

Not to rain, but possibly rebuild the turbo at this point too...

Sigh...i know
so how much is it to rebuilt the turbo? also, after i get my turbo rebuilt, but i need to get it tune again?
should i just upgrade the turbo instead?

Yeah, you have lost the bearings on that turbo.
Its really easy to rebuild, but you have to pull the turbo off to do it.
An oil line restrictor would have prevented this.

Yeah, you have lost the bearings on that turbo.
Its really easy to rebuild, but you have to pull the turbo off to do it.
An oil line restrictor would have prevented this.

i knew i should have done that!!
so how much do you think it will take to rebuild?
and do i need to get it retune again after rebuild?

i knew i should have done that!!
so how much do you think it will take to rebuild?
and do i need to get it retune again after rebuild?

You don't need to retune, As for rebuilding... if you are adventurous enough you can attempt to do it yourself. It's not rocket science. you need to pull the turbo from the car, take it apart and replace the bearings.
There are repair kits that you can purchase.

or upgrade your turbo and make me extremely jealous

http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT28/GT2871R_771847_1.htm

well if he was going to upgrade he should do the mazsport greddy upgrade with the upraded intercooler www.mazsport.net

whoneedpistons, unfortunately that greddy rebuild option isn't going to give him another 50 whp. Otherwise I'd be the first in line.

50 HP more than he has now with the bad turbo???? Maybe...:lol:

PS. I was just spec-ing out that GT28...yummy.

another 50 whp over a standard functioning greddy turbo

if i have the money to buy the GT28 turbo, i would do it, but too bad i dont!
plus, if i upgrade to that turbo, i have to upgrade other parts too, like injectors, fuel pump, etc.

depends on what your goals are. If you want to stick to 300 whp, you should be OK. And you can hit 300 whp without needing 11 psi like on the greddy.

depends on what your goals are. If you want to stick to 300 whp, you should be OK. And you can hit 300 whp without needing 11 psi like on the greddy.

im happy with the power i have right now! but i dont mind to have a little more, so i might just rebuild the turbo, then later add a boost controller and get it tune again!
btw...the symtoms that im getting right now, do i need to get my turbo rebuild right away? or i can still drive it for a little while? cause im really broke right now!

GT28?

I thought the GT30 was the way to go?

Is the GT28 easier to install with the GReddy kit flanges?

The GT30 won't fit on the GReddy manifold without serious modification. I'm not even sure it would fit in that location at all.
If you can read a flow map, you'll see that the GT2871R is the properly sized turbo for the Renesis at 12 PSI or so.

hey, Daly city is in the bay area right? When I blew my motor I took my car to ricks rotary performance in pleasonton. He is the most knowledgeable and helpful person I know and I'm sure He can help you. Also when I blew my motor The apex seals on the first rotor broke into 3 peices and damaged three fins on the compressor fan so I had the turbo rebuit. He sent it to another shop out of state and not only will they rebuid it, they can also mill out the housing to house a bigger fan or add water lines for additional cooling. Anyways, I'm planning on taking my car there when I get back from washington for some clutch issues but If you want I can give you the number to his shop.

i talked to them before i got my turbo kit put on already, they said they dont touch turbo'ed rx8 anymore!

so anybody knows a shop in NorCal, who can just help me install the oil restrictor and solve the oil leak?
i called full function today, they said the earliest appointment they have is in 3 weeks later!

so is there anybody tell me where can i install the oil restrictor again?
i know i install in the oil inlet line that goes into the turbo. but i brought it into two places, they both said that i have to take the turbo out to do that, or i can put it in the T fitting near the driver side right above the spark plugs. is there why im suppose to put it? cause they were saying that they are not sure if it can hold the noz jet in place.
can anybody please tell me how?