1G 16g installation

[Jc'sLaserRs]

I'll be putting a new 16 g turbo on my car soon and well i was reading things on how to break it in and is it true that you got to crank the car over for 10 to 15 seconds 3 times with out starting it to prime the oil in the turbo and after that let it idle for 10 to 15 minutes then drive it and keep the boost down for 100 to 200 miles so you don't have premature turbo failure is all this true above ????

p.s right now i have mobil 1 10-30 oil and i think it is synthetic and it says not to use it and well i just changed my oil and do you think it would matter ???

 

[Zmann42087]

You definitely want to prime the turbo in order to lubricate the bearings before the first startup. After you've done that, you should be good to go. I've never heard of keeping the boost turned down for 100-200 miles... its really not necessary.

 

[Jc'sLaserRs]

allright thanks for the information

 

[kmoore]

Explain a little better about your oil problem. What says not to use it?

 

[kenamond]

I'm with Zmann42087. The 3x15 second priming just gets oil through the turbo. 3x is so you don't burn up your starter.

I see no problem with synthetic 10w30 Mobil1. Synthetic has a higher breakdown temp, which helps reduce coking on the hotside of the center section.

Other than that, there are additional things they suggest to help your turbo last longer. Like don't rev the engine when you first start it so that you get oil pressure before you spin up the turbo. And don't shut the car down right after you've been boosting hard or you increase coking. And increase your oil change frequency (2k miles). But that has nothing to do with breaking in a turbo.

 

[Jc'sLaserRs]

just some website i was looking at dont recall the name cause i didnt look and well didnt find anything so i left it and came here to the real site to ask the real pros

 

[kmoore]

Did you read that Mobil 1 was no longer a TRUE synthetic?

 

[DSMinduction]

a 16g? those turbos are absolute tanks. i would be amazed if you destroyed one so easily. you shoulda seen how much i would put mine through and it still came out with no shaftplay. i beat the crap out of that thing for years.

 

[kenamond]

a 16g? those turbos are absolute tanks. i would be amazed if you destroyed one so easily. you shoulda seen how much i would put mine through and it still came out with no shaftplay. i beat the crap out of that thing for years.

He's talking about break-in procedure for a *new* turbo. Spinning the turbo up with no oil in it is a very bad idea. My T25 lasted 78k miles. Not bad.

 

[RedTurboEclipse]

When I installed my scm50, I primed it as per instructed in how to prime a turbo here on tuners. Only did it once, for a few seconds, started it up and let it idle for a while, then pretty much drove it right away. Been a good couple thousand miles no problem.

My other GSX, stock t25 126k miles still good, no turbo timing.. come on now, oil and water cooled.

 

[Afroclipse]

Kenamond I have a stupid question, if my setup is stock except clutch and i drive my car to and from work in heavy traffic is it NECESSARY to under go the 30 second cool down procedure or can I just turn it off.

When i get of work at 7am I'm too tired to wait 30 seconds so should I invest in 30 seconds or not.

 

[Jc'sLaserRs]

ok thats good i need a turbo that last long i just got it and its on its way finnaly get my car up in running well in 2 days and its gonna b sweet

 

[jking29]

As long as you were not boosting hard it is not necessary to let it idle for 30 seconds. If you are really worried about it just get a turbo timer.

 

[c4uldr0n]

yeah, just as long as you have a good cool down period you should be set... 30 second idle is good, but a 2 mile drive home @ 2k-2.5k rpm would be just as good in my opinion

 

[Zmann42087]

Kenamond I have a stupid question, if my setup is stock except clutch and i drive my car to and from work in heavy traffic is it NECESSARY to under go the 30 second cool down procedure or just turn it off.

When i get of work at 7am i'm too tired to wait 30 seconds so should i invest in 30 seconds or not.

As long as you're not racing the car and spooling up the turbo at every stop light, you're fine without a turbo timer. Not to mention the fact you're still just running the stock T25... its a puny turbo with a puny resale value. Really not even worth protecting IMHO.

 

[kenamond]

Kenamond I have a stupid question, if my setup is stock except clutch and i drive my car to and from work in heavy traffic is it NECESSARY to under go the 30 second cool down procedure or just turn it off.

When i get of work at 7am i'm too tired to wait 30 seconds so should i invest in 30 seconds or not.

Like Zmann42087 said, you don't have to worry about it unless you're boosting alot right to the parking lot. The exhaust gasses are very hot when you're boosted, and that heat in the turbine housing and wheel will conduct into the center section on the hot side and cook the oil (coking) which eventually clogs the oil flow to the turbine-side of the shaft. As oil flow is blocked, the turbo gets closer to death. Cooling the turbo down before shutting the motor down decreases the rate of turbo death. It's not a matter of *if* the turbo dies, it's *when*, and this is just delaying the inevitable.

When I tore off my blown T25 with 78k miles on it, there was a fair amount of coking on the hotside, but it wasn't rediculous. Shaft was broken at the turbine wheel, and the thrust bearing (closer to the compressor end of the shaft) had disintegrated. Not sure which failed first.

So it's up to you. Turbo timer keeps your motor running after you get out, so you don't have to wait while it cools the turbo. But if you're not hauling ass into the parking lot (or your driveway), the hotside isn't hot enough to worry about.