Waste gate on big turbine

[x MadMAX DIESEL]

Who runs a gate on a 96mm 1.25 ar? I'm stuck with t4. In the past have not needed a gate afaik. I don't know what my pre/post pressure ratio was but I fell off the charger. This year I won't be falling off the turbo and would like opinions on gating. I know it will help with scavenging pretty good, if I can get it down to 1:1 or less, is that possible to get less than 1:1??

 

[onebaddmaxxx]

what size compressor are you running?

we ran a 96 turbine all year with a 1.1 on a 75 and NEVER fell off the charger. Rarely ever had to unlock on the end either.

 

[Yellow Jacket]

Buy a Garrett charger with a good compressor in it.... First year 3.0 we ran a s483 clipped to 76mm and a 96/88 turbine with a 1.10 housing. Went rmto a gt45 with Precision 83mm clipped to 76mm with a 1.28 exh housing it spooled easier, made more boost, and had less drive pressure.

 

[x MadMAX DIESEL]

I'm gonna do some changes and tune options to hopefully stay on my current turbo alittle better. But has anyone been able to get true 1:1 or less ratio with a waste gate? I would think (even with a forced Induction you could sling way more air in the cylinder. But don't have a clue if it could keep pushing good boost strictly on low ratio and depending on heat mostly to drive it?

 

[S Phinney]

As a single charger it should be easier than compounds. Run a 60 to 60mm gate go with the biggest spring combo and use a manual boost controller. It is a must to have the proper gauges to tune the gate. Try getting it close then adjusting tuning and then readjusting gate.

 

[hondarider552]

I run a 44mm precision gate on my 483/96/1.0 t4.

 

[x MadMAX DIESEL]

How close to perfect are y'all able to get

 

[hondarider552]

Not sure, I don't monitor drive pressure, but I set the gate at 55psi. Doesn't open the gate when I run only #2 but gate is open when I spray it as that's what I needed it for.

 

[x MadMAX DIESEL]

Awesome and when it's open what kinda boost do you see?

 

[x MadMAX DIESEL]

And how do you guys with single attach them? My pedistal doesn't have a waste gate port on it. I think it's a RDL

 

[hondarider552]

When gate opens it sits right at 52-55psi.

My setup is remote, but here's how it looks, Y's off the feed pipes.

 

[ikeG]

You are not allowed to run T6 Ben?

 

[x MadMAX DIESEL]

When gate opens it sits right at 52-55psi.

My setup is remote, but here's how it looks, Y's off the feed pipes.

Wow that all looks very nice

 

[x MadMAX DIESEL]

You are not allowed to run T6 Ben?

No I'm not. I just found Ed makes alittle spacer with a rectangle cutout which turns into a round pipe to connect a gate too. But in guessing its an inch thick and my turbine is like .5 from the cowl as it is already.

http://www.engineereddiesel.com/wastegates

If the gains aren't really worth the cost I don't wanna throw anymore money into it. But I would think if drive is negative or right at 1 the velocity at valve overlap will help quite abit to give the intake a jump start on sucking air in.

 

[ecc_33]

IMHO I wouldn't waste your money on a gate fuel only. Waste your money on a machine shop machining/welding a T-6 housing down to fit a T-4 pedestal :thumb:

 

[ikeG]

IMHO I wouldn't waste your money on a gate fuel only. Waste your money on a machine shop machining/welding a T-6 housing down to fit a T-4 pedestal :thumb:

JEB Modern Machines, Ltd.

 

[x MadMAX DIESEL]

IMHO I wouldn't waste your money on a gate fuel only. Waste your money on a machine shop machining/welding a T-6 housing down to fit a T-4 pedestal :thumb:

Is that illegal? Or you mean literally cutting off the flange and replacing it? Would that net any gain since it still runs through a t4

 

[ecc_33]

Think outside the box. Its T-4 isn't it:thumb: Im sure when someone see's whats going on there going to beech. 2.5 guys are doing it. You might as well do it too.

 

[x MadMAX DIESEL]

Think outside the box. Its T-4 isn't it:thumb: Im sure when someone see's whats going on there going to beech. 2.5 guys are doing it. You might as well do it too.

Yeah I talked to them. It would be more involved than. Just v banding it up to my turbo. Would need a whole new turbo basically so I'm not gonna do it.

 

[ikeG]

Why u need whole new turbo?