Will Turbo Overspool if not connected?

[Catbox_95]

I need to limp my car to a shop with the turbo not connected to the intercooler piping. Will this damage the turbo?

 

[rowlex]

EDIT: since I looked at your profile....

Just dont drive the car hard (don't try to build any boost) and you will be fine.

 

[crunchymilk]

At the very minimum i would put a filter over the intercooler piping so you don't suck up something nasty. You can also unplug your MAS and run super rich.

Honestly, you should tow it, but if you have to move it, try what I said. I did this for about a mile when I had to.

 

[rowlex]

At the very minimum i would put a filter over the intercooler piping so you don't suck up something nasty. You can also unplug your MAS and run super rich.

Honestly, you should tow it, but if you have to move it, try what I said. I did this for about a mile when I had to.

He has a MAFT, I assume setup in blow-through, he doesnt have to worry about anything, although the filter thing may be cool to do(but I doubt he will be "sucking" and amount of air to pull anything big in), or he could just take the intercooler piping off the MAFT. (JFYI) if you are unfamiliar with a MAF-T, it counts the air inbetween the BOV/throttle body.

 

[Catbox_95]

Yes, I'm aware of what an MAFT does, and I mounted mine right in front of my TB, so I knew I had no issues in that area. I was just worried that spinning a turbo up with nothing to build pressure against might cause it to overspool.

I drove it very carefully to the shop. If I listened VERY carefully, I could actually hear the turbo. I noticed that if I accelerated very slowly, never pressing the gas more than like 10%, and shifted before 2500 rpm, the turbo never really spun up very fast. Just a blip of the throttle would cause the turbo to start spinning very fast very quickly since there was no resistance, so I had to be careful to barely press the gas and shift early, never putting the engine under any real load. I had to go about 30 miles like this.

The reason I had to do this was because I changed out my header in my garage, but it moved the placement of the turbo enough to cause my exhaust to not fit, my intercooler piping to not fit, and my wastegate downpipe to not fit. I basically had a header and a turbo bolted to my car, with nothing else. I did manage to get just 1 bolt in the O2 housing to help scavange most of the exhaust to under the car.

Everything was fine and I got there safely with no damage or danger. I hope this info helps anyone else who might have a similar situation. Thanks for the advice for those who contributed.

 

[rowlex]

cool deal, I know you knew what the maft did, the jfyi was for crunchy

 

[1fast97gsx]

You still should have towed it. Running an engine super rich or super lean for 30 miles isn't too good for it and not worth the $80 it would have cost to tow it there. Glad it worked out though.

 

[rowlex]

he was NOT running super lean or super rich. He has a MAFT blow-through setup on his car. Therefor he had the correct amount of fuel for the amount of air he was bringing in.

 

[Catbox_95]

You still should have towed it. Running an engine super rich or super lean for 30 miles isn't too good for it and not worth the $80 it would have cost to tow it there. Glad it worked out though.

Like Rowlex said, it's a blow-through MAF setup, so the mixture is not affected. It was strictly a matter of the turbo's safety that was in question.

 

[oztofrdm]

my intercooler is in the shop right now getting re welded because the endtank blew off . But i have been driving around with the stock plastic intake with 3.5 gm maf on my TB since i dont have the blowthrew couplers because im spending money on fixing the intercooler. Im just hoping that i get something to fly into the turbo so i can have an excuse to buy a new bb60-1 or a fp3065

 

[crunchymilk]

Sorry I didn't read your profile, I know what a maf-t is

Glad it was ok though.

 

[99gst_racer]

While I also agree that towing it would be the best option; if you are worried about overworking your turbo, simply disconnect the actuator arm from the flapper door. That will cause the wastegate flapper to remain open all the time and it should cause most of the exhaust to bypass the turbine wheel, thereby relieving the turbo of most of it's operational duty.

 

[Catbox_95]

While I also agree that towing it would be the best option; if you are worried about overworking your turbo, simply disconnect the actuator arm from the flapper door. That will cause the wastegate flapper to remain open all the time and it should cause most of the exhaust to bypass the turbine wheel, thereby relieving the turbo of most of it's operational duty.

Check my mods - external wastegate, T3/T4 turbo. No actuator arm.

But good advice for those who read this that have stock turbos or internal wastegates.

 

[99gst_racer]

Check my mods - external wastegate, T3/T4 turbo. No actuator arm.

But good advice for those who read this that have stock turbos or internal wastegates.

External wastegate..... Ok, pop the top off and pull the spring out. It might not fully keep the turbo from working, but it definitely should keep it from overworking.

 

[ALLBoostAWD]

External wastegate..... Ok, pop the top off and pull the spring out. It might not fully keep the turbo from working, but it definitely should keep it from overworking.

Thats makes it easier, my advise is the same, and dont drive it hard. Or spend $20 at mal mart and buy a tow strap to pull it there. I have done it twice and the $20 i spent was better than paying some douche to come tow my car incorrectly, or break something by loading it up wrong.