93_rx7_550rwhp

I just got my car done 3 mounths ago i had alot of work done to it
Defi
60mm boost gauge
60mm water temp gauge
Link unit for guages
Apexi
Power FC w/ controller
AVC-R boost controller
Auto timer
Momo combat shift ****
Engine
Pineapple stage 3 race ported motor
XS engineering T04S turbo kit
Greddy 2-row front mount intercooler
Greddy throttle body
Greddy filter for T04S turbo
HKS twin power ignition
Performance sparkplugs
1600cc injectors
Nippondenso copetition fuel pump
Secondary top feed fuel rail
Fuel pressure regulator
HKS Hiper Carbon fiber Exhaust
Midpipe
Mazda speed short Shifter
Pettit aluminum AST
Koyo aluminum radidiator
ACT street/strip clutch
9.5 lb racing beat flywheel
Greddy pulley set
Unorthodox under drive pulley
And about a week ago i was driving it and i took my friend for a ride and when i got back to his house there was an unusual amount of blueish smoke coming out the exhaust! so i took it home and changed the oil and it seemed a little better but when it got ho agian it started smoking It ONLY SMOKES WHEN THE TURBO IS NOT MAKING ANY BOOST my engine runs pretty good but it has always been pretty rich Please help if you can

Scrub

iTrader: (25)

Looks pretty sweet. It will probally look a lot better when it is painted. Im guessing you don't really have 550 hp though. But nice mods.

Red-Rx7

Does it smoke when you drop off the throttle? For example, you on it making positive pressure then let off?

If so, what are you using for an oil pressure restriction to the turbo? I believe the factory oil pressure is something like 120 psi, and plugging this straight into the turbo will cause excess oil pressure to leak through the turbo and have the exhaust housing / downpipe burn it when vacuum pressure is on the engine.

Something you might also check is the oil blowback pressure. You have a check valve that releases the oil pan pressure (near the oil filler neck). Check to make sure this works. If you get a lot of pressure in the oil pan, the oil has to go some where... and this being back up the oil drain line and through the turbo.

The last think I would check would be to make sure the oil drain line isn't kinked or somewhat restricted in any way.

Start with the basics here, then you can look at other options (ie engine.. ).

Mike

sub-zero

Try a search on crank case venting. Just like Mike said the oil has no where to go and cant drain back.

93_rx7_550rwhp

I think it all may have started by me putting too much oil in my rx maybe a half a quart?? would that blow my rear turbo seal? it smokes at an idle and when i make positive pressure then let off. it smokes a considerable amout (small cloud) I just dont know what i did to influence it ?? if it was an oil pressure thing then i think it wouldnt smoke so much at idle!? thanks for your replys

93_rx7_550rwhp

it doesnt burn much oil just the same as always p.s there is never any black smoke only blueish and a bit of white

Resource

The XS T04S turbos have major problems. They put too small of an oil restrictor in the turbo causing major bearing/seal damage and eventually you will need a complete rebuild. Bi-State Customs has serviced many of these due to XS enginnerings mistake. Here is Bi-State Customs phone number if you want them to fix it much less than XS will charge you.

Bi-State Customs
618-234-0069

93_rx7_550rwhp

any other sugestions?

Resource

There aren't any other ways around it. I know you don't want to hear this but it's only going to get worse.

93_rx7_550rwhp

i am runing really good 15-40 oil maybe i should switch to a good 5-30 to lower the pressure on the seal??? thiner oil lower pressure??? what do you guys think about running 113 octane gas would that help my rich problem??
what oil do you suggest? thanks alot

Resource

The oil weight won't make any differance. The higher octane rating doesn't make it run any leaner. Higher octane gas only burns slower. I PM'd you back.

Just trying to help.