Boostedcivic904

First im new to this turbo stuff, so i have a ? Alright i switched my turbo out with a slightly bigger on. Now i have everything hooked up but the exhaust to the turbo. Can i start the car to get oil in the new turbo? Should i pull a plug wire and try to start first? Please help, getting exhaust sat and i wanna make sure i have no leaks or anything

ballistic1350

iTrader: (7)

You need to prime the turbo before you start it. AKA disable fuel and spark then turn it over via the starter a bunch of times.

ballistic1350

iTrader: (7)

What kind of leaks are you trying to rule out? Personnally I would wait until you get some form of exhaust before you start it

OneBadTurboCRV

Only half right. You should run the vehicle and and hold the compressor wheel for a minute or two. Bumping the starter a few times won't provide the volume necessary.

ballistic1350

iTrader: (7)

hold the compressor wheel?! your kidding me right...

justYncredible

iTrader: (1)

Wow
I didn't do anything special i just put it on and started the vehicle and checked for leaks.

YuckyCorpse

yeah they come pre lubed. just throw it on and start the bitch

Boostedcivic904

Ok kool yea ill disable gas and spark. Just tryin to make sure my new oil feed is good and my return, since i switched them over. Dont kno about holding the wheel tho. Lol

justYncredible

iTrader: (1)

you can fire the car right up bruh
your turbo should be oil/lubed up from the manufacture, well i can only speak for garrett

Muckman

iTrader: (2)

Just fire it up. It'll get hit with oil pressure within a second. I dont think this is a big deal.

wantboost

iTrader: (2)

On a fresh motor build I always hold the compressor wheel on first start up.

All of you people act like it will take your finger off, not at idle.... I can hold/stop a compressor wheel with one finger. The exhaust will still move through the housing without the wheel turning

ryguy2588

iTrader: (11)

Plus if it's cold and it's journal bearing, some don't even spin at idle lol. I've never had a problem with starting it right up.

turbohatch96y7

iTrader: (15)

**** the downpipe rip on that bitch open turbo.

Boostedcivic904

Ahahah that's hilarious! Just rip out on the bitch huh....but yea thx for the help will jus start it up than and let it idle. I have time so ill start it ton. But yea goin for 400 whp with this precision turbo. Wish me luck.

justYncredible

iTrader: (1)

I'm not willing to take that chance


I wonder how manufactures get though this, I know they don't have a process where someone holds the wheel and someone else starts the vehicle...maybe I went to far with this

wantboost

iTrader: (2)

I've done it multiple times, no issues.
Remember it's not directly coupled to the movement of the exhaust gasses.

Its like stopping a ceiling fan with your hand

DirtyDA9

It kills me that people like this own boosted hondas, while I have 2 stock integra LS' s lol fml.

th3pwn3r

This is why you get/build yourself 1 good car

SiRCiviC94

more good info. personally i primed the line where oil was coming out on a brand new oil change....worked for me. also its not sketch to hold the compressor wheel TOO much. but some hondas start and rev to 2500rpm. that would be hard!

OneBadTurboCRV

Maybe "TheShodan" will chime in to support me on this one. You people can do as you please, I only purchase new turbos anyways.

Runnerdown

I don't quite see an advantage to holding the turbo. With this logic, every cold start would have to follow the same procedure. I hold them with the drain facing up and pour some extra oil in just for good measure.

OneBadTurboCRV

Nobody said you had to do it more than once. This is the "conservative/safe" way of doing things. If you choose to do not hold the wheel, then disable fuel/ignition and crank the engine over for 30-60 seconds at least. The problem with this is that if you have a freshly built engine, depending on assembly lube and how you primed the system, you could wipe the bearings. Regardless of method you should always have the return line disconnected to verify oil flow.

Also, holding the compressor wheel assumes you have 2 people. I have enough underlings to loan out if needed.

wantboost

iTrader: (2)

I always store my turbos return side up and keep them full of oil. However there is a fine residue left over when they are new from the balancing process.

Holding the wheel on a new motor, first start ensures that oil reaches the bearing system before the turbo spins, as depending on how the feed line is plumbed/length, it can take a minute for oil to reach the turbo.

Its simply a safe measure

BigMike0147

Unless Mac has changed his stance on turbo initial startup, this is what he had me do when I got my turbo from him (and it makes sense). It's the same process I'd done with my previous turbo as well.

Disconnect the turbo drain line. Disable fuel and spark from the motor. Pull the spark plugs if you'd like, so that it'll spin more freely (my added step). Crank the motor until you have a steady stream of oil coming out of the return. Your turbo is now primed with oil.

SiRCiviC94

good idea to disconnect the drain i would just prime the turbo full of oil and start the engine.. so just drain into an oil container check flow then shut it down? how much oil is the norm?