10,000 trailer 1/8 mile drag race

[DEEZUZ]

Vgt is awesomeness. It's also part of the reason we go through so many turbos.

I love it when the kiddos come in and say they blew up their turbo when really the vgt vanes are stuck faggits.

Vgt works, very well. On 6.4s I can make like 14 psi in park at like 1500 rpm. Best way to look for boost leaks.


This twin scroll thing, I haz to look into. Never heard of it

 

[GTPpower]

Man, some of those duramax's....you can really tell which ones have IFS and which don't.

Sounds like I would need 1000+ HP to be competitive in this.

 

[EmersonHart13]

I need to watch this tonight.

 

[NOMIEZVR4]

never seen this before but it was awesome. watching the whole 2017 series now..im a fan

 

[GTPpower]

My main question, who is brave enough to let someone borrow their skid loader for this event every year?

 

[DEEZUZ]

never seen this before but it was awesome. watching the whole 2017 series now..im a fan

Soon you'll be on lower whacker with a 1500 hp dmax.



Uwatch

 

[DEEZUZ]

My main question, who is brave enough to let someone borrow their skid loader for this event every year?

LMAO. I'm sure it's sponsor that get 5x what that things worth with advertising

 

[GTPpower]

He would probably get even more if there was a bunch of carnage.

 

[nytebyte]

It's scary watching some of those trucks start to wiggle halfway down the track. I can't imagine them losing control and sending that trailer flying down the track end over end.

In any case, that poor Bobcat got the ride of its life that day.

 

[Pressure Ratio]

Big hp/tq diesels are fun to watch. So much weight moved like it's nothing. lol

Seems like the diesel world likes the VGT/variable vane turbos but for some reason they are rare on gasoline? Gasoline likes the twin scroll

I'm sure it is due to cost. It is cheap to cast a twin scroll turbine housing and turbine wheel. I believe the 2007 Porsche 911 Turbo was the first gas engine car to use the BW VGT turbos. They work great in that application and are still used in the current 911.

Not only can you close the vanes to help spool quickly, but it isn't just closed down low and open up top. Especially when you tune the car for more power. The tuner can change the angle of the vanes back and forth throughout the whole rpm to deal with back pressure, presser ratios, and to drive the turbo to help extend the power rpm of the power band. So it can really help overcome some issues you couldn't otherwise control with a standard wheel/housing and wastegate setup. It is a neat technology for sure.

 

[b4black]

Shelby used a Garret VGT turbo on the Dodge Shadow CSXs in 1989.

 

[Pressure Ratio]

The Turbo IV, correct? That was a Garret turbo. I think I read that they had issues with the vanes moving due to rust and deposits. They programmed it so that when you started the car it would reposition the vanes back and forth to try and "clean" them and keep them operational. But they still had issues with them over time. I also think they said that small motor also spooled in half the time of a traditional turbo. So proved beneficial. But I think most companies don't use them due to cost.

I remember those cars had a lot of aftermarket support. A buddy was a V8 mopar guy. But I would read his mopar magazines and see some crazy quick turbo 4 cars that were modified.

 

[DEEZUZ]

Yup. Ford especially has had several flashes over the years to help with coking, but it never helps. They used to sweep it every now and then. Now not so much. People wire in switches to command a full sweep.... Bottom line is beat the piss out of it.

 

[DEEZUZ]

holy cow! All this bewst and I'm in park!

 

[GTPpower]

Is that a 6.4?

 

[DEEZUZ]

Is that a 6.4?

Yea baby

 

[Pressure Ratio]

Is the MAP reading the atmospheric pressure as well?

If it is then its probably more like 22.3 psi above atmospheric pressure. Still seems like a lot at idle. But I am not the resident diesel guy lol

 

[GTPpower]

Notice how MGP reads 22.4.

I really want to buy a 6.4 for a toy, and to pull with 500hp. But I'm not rich enough to pay those bills.

 

[Yaj Yak]

Is the MAP reading the atmospheric pressure as well?

If it is then its probably more like 22.3 psi above atmospheric pressure. Still seems like a lot at idle. But I am not the resident diesel guy lol

i dont think he said it was at idle

 

[DEEZUZ]

Is the MAP reading the atmospheric pressure as well?

If it is then its probably more like 22.3 psi above atmospheric pressure. Still seems like a lot at idle. But I am not the resident diesel guy lol

Yup.


You can see its set to 2500 rpm.

 

[DEEZUZ]

Hence mgp reading 22psi.


Manifold gauge psi

 

[Pressure Ratio]

Yup.


You can see its set to 2500 rpm.

Sorry. But still, no real load if rpm his high and truck is in park.



AH, I see the MGP now. Gotcha

 

[Yaj Yak]

his point was he was able to build that much boost while in park.

 

[Pressure Ratio]

I knoooooooow KJ. lol




In the giant picture, I thought he was going off of MAP pressure.

 

[Yaj Yak]

K