Boosting with the twins... is250 turbo build
01-11-14, 11:10 PM
#241
Car has been doing great. Seems like the bad turbo has taken a complete dump now and doesn't even spin due to how bent it actually is inside. Can't wait to get it replaced next week so I can finally boost again.
Check engine did come on after 80 miles due to the catless headers but other than that, no MAF codes or misfires.
Check engine did come on after 80 miles due to the catless headers but other than that, no MAF codes or misfires.
01-12-14, 01:49 PM
#244
So this morning I turn on the car and I smell oil in the trunk. I popped the trunk and I see a bunch of oil under the rear of the car. The oil pumps failed and made a mess.
Ugh!!!! This is so frustrating!
I'm gonna have to pull the turbos down and order a new pump next week.
Ugh!!!! This is so frustrating!
I'm gonna have to pull the turbos down and order a new pump next week.
01-12-14, 05:21 PM
#245
Sorry to hear about all of the complications. I'd recommend a quality electric oil pump that is gear-driven, in-line oil filters, maybe check valves, and a oil/trans cooler.
I never did see about how you had the oiling system setup on your ride; but I found this and was curious how yours compared :
I never did see about how you had the oiling system setup on your ride; but I found this and was curious how yours compared :
01-12-14, 07:41 PM
#246
There is a pump that sucks oil from the tank and splits it into two even lines that run straight to each turbo. Each turbo has an oil outlet line connected and they each Y into 1 line that is connected to another pump that sucks the oil out and pushed it back to the tank. Pretty simple setup but clearly the pumps need to be better quality as I drive the car a lot. I've put over 1600 miles since I first installed the Turbos.
01-12-14, 10:02 PM
#248
01-13-14, 07:27 AM
#249
Lexus Test Driver
01-13-14, 12:26 PM
#250
There is a pump that sucks oil from the tank and splits it into two even lines that run straight to each turbo. Each turbo has an oil outlet line connected and they each Y into 1 line that is connected to another pump that sucks the oil out and pushed it back to the tank. Pretty simple setup but clearly the pumps need to be better quality as I drive the car a lot. I've put over 1600 miles since I first installed the Turbos.
Did you ever try the oiling system without using the pump to feed the turbos (aka gravity-feed instead)? To test (without turning the car on), remove the turbo feed lines and have them both dump into empty containers. flip on your "return" pump, and see what amount of oil comes out of the turbo feed lines. There might be a slight bit of pressure from the one pump helping push the oil into the feed lines.
Is the turbo's oil container sealed (meaning, it can be slightly pressized and not lose pressure)?
Last edited by Gville350; 01-13-14 at 12:31 PM.
01-13-14, 12:54 PM
#251
I priced out some quality pumps at $300 per unit; these were made for oil AND for remote turbo applications.
Did you ever try the oiling system without using the pump to feed the turbos (aka gravity-feed instead)? To test (without turning the car on), remove the turbo feed lines and have them both dump into empty containers. flip on your "return" pump, and see what amount of oil comes out of the turbo feed lines. There might be a slight bit of pressure from the one pump helping push the oil into the feed lines.
Is the turbo's oil container sealed (meaning, it can be slightly pressized and not lose pressure)?
Did you ever try the oiling system without using the pump to feed the turbos (aka gravity-feed instead)? To test (without turning the car on), remove the turbo feed lines and have them both dump into empty containers. flip on your "return" pump, and see what amount of oil comes out of the turbo feed lines. There might be a slight bit of pressure from the one pump helping push the oil into the feed lines.
Is the turbo's oil container sealed (meaning, it can be slightly pressized and not lose pressure)?
$300 doesn't sound bad at all. May I ask what site you found them on?
In regards to the oiling system... There is actually enough suction to just run a single pump on the oil return side of the turbos. The tank has a vent that I have a hose connected to that vents to the outside of the vehicle. I had to do this because the oil get super hot!
Noob question but what difference would it make if the tank was pressurized or not?
01-13-14, 05:46 PM
#252
http://www.rbracing-rsr.com/oilsystems.htm
Bottom of the page for pricing. Check out everything on the page for some other oiling system advice; see their check valves out.
Yeah, I figured as much; you NEED a trans/oil cooler! So you say it still has a little suction on the feed side even with the container currently venting? How did you test for suction?
If the tank is sealed (like a gas tank), it can hold pressure. But with yours venting, it won't.
Bottom of the page for pricing. Check out everything on the page for some other oiling system advice; see their check valves out.
Yeah, I figured as much; you NEED a trans/oil cooler! So you say it still has a little suction on the feed side even with the container currently venting? How did you test for suction?
If the tank is sealed (like a gas tank), it can hold pressure. But with yours venting, it won't.
01-13-14, 07:29 PM
#253
You also want to make sure that the oil out/return lines are of larger diameter to account for oil expansion due to heat. at the very least do not Y them back before the return to the tank,...just my 2C from looking at my son's 3SGTE oil system.
01-13-14, 07:55 PM
#254
http://www.rbracing-rsr.com/oilsystems.htm Bottom of the page for pricing. Check out everything on the page for some other oiling system advice; see their check valves out. Yeah, I figured as much; you NEED a trans/oil cooler! So you say it still has a little suction on the feed side even with the container currently venting? How did you test for suction? If the tank is sealed (like a gas tank), it can hold pressure. But with yours venting, it won't.