Twins over stock with VVT + Engine Brake

[stibuilder]

How does engine braking with a VVT turbo work when running a second turbo?
I love the idea of having twins for towing but the flip side is slowing down and the exhaust brake is very very useful on the stock turbo. Hoping the performance of it is the same.

 

[PureHybrid]

I have no personal experience, but I don't see why it would be any less efficient with another turbo behind it.

 

[bfmine]

It still works

 

[bfmine]

I can tell say if it's better or worse. But I think it's pretty darn good with s475/stock

 

[hondarider552]

It works better with twins.

 

[countrycorey]

It works better with twins.

Agreed

Sent from my SAMSUNG-SM-G930A using Tapatalk

 

[bfmine]

I thought so too. But it's been too long to remember it was like without them

 

[superswamper003]

I thought so too. But it's been too long to remember it was like without them

hows your trans holding up? is it stock?

 

[bfmine]

No it's not stock i put a PPE kit in right before the twin kit Before that I ran a stock trans with a precision (ML) converter and a transgo jr kit. Never limped. But when I tore the transmission down it def had signs of heat and burnt clutches

 

[stibuilder]

Jealous of you guys able to run twins so easily. Im on the search now for a s475 there seems like alot of configurations and price swings. Anyone have a link to one most commonly used?

 

[Burn Down]

Any 475 will work. The 96 turbine is a common twin app. 1.15-1.34 exhaust housing AR. Garrett GT4202 is another option, it has a smallish turbine but spooled instantly. The garretts are more money.

 

[stibuilder]

Any 475 will work. The 96 turbine is a common twin app. 1.15-1.34 exhaust housing AR. Garrett GT4202 is another option, it has a smallish turbine but spooled instantly. The garretts are more money.

https://www.maperformance.com/produ...m-171702-177288?ref=isp_rel_prd&isp_ref_pos=1

This guy?

 

[Chad006]

That looks to have a 88mm turbine not the 96. Your in Washington i know he's not a vendor but Scott at sdp is in port Angeles and would be able to spec you out and build you a top notch kit. Great guy to deal with I do %90 of my stuff through his shop.

 

[stibuilder]

That looks to have a 88mm turbine not the 96. Your in Washington i know he's not a vendor but Scott at sdp is in port Angeles and would be able to spec you out and build you a top notch kit. Great guy to deal with I do %90 of my stuff through his shop.

I sent him a Email last week, im sure he was at SEMA just waiting on a reply this week. They do seem to have some nice stuff and not horribly far away.

 

[TheDirty06]

I got a s475 I'd sell but your gonna need the rest of the kit

 

[bfmine]

My kit is from Scott. Great quality and he was great at answering any questions I had along the way

 

[Burn Down]

https://www.maperformance.com/produ...m-171702-177288?ref=isp_rel_prd&isp_ref_pos=1

This guy?

Yes that is a 96mm turbine wheel. Are you building yourself?

 

[stibuilder]

Yes that is a 96mm turbine wheel. Are you building yourself?

If it works out I probably will. That way I can make a few for other Kodiak owners. The Kodiak fitment looks a lot more challenging due to the tighter packaging. But at the same time it looks like it can be done reasonably. My truck is down anyways so now would be the time to start mocking stuff up, and getting an idea of what it takes.

 

[Burn Down]

They can be built easy enough if you have some skills and attention to detail:thumb:

 

[stibuilder]

They can be built easy enough if you have some skills and attention to detail:thumb:

I built this thing so I should be able to do this, but im still learning about diesels in general.