I just saw at SEMA that they're making this with a 1.05 open t3 in/ 4 bolt 3" out housing starting 2016. How laggy is that 1.05 housing going to be?

I'm now running a 6466 on 43-47psi t3 .82 and have a good amount of backpressure. on this t3 setup I trapped 178MPH in the 1/2. Looking to make some more power and break into the 190s this year with a bigger turbo.

Thoughts on this turbo?

 

I've been told twin scroll only with this turbo, open t3 or t4 will make you regret it.

 

I run an opent T4 .81 and works great. Trapped 163mph in the 1/4 with 37psi cause I was out of injector. I dont regret it at all.....

 

Apples to Oranges, You run a fwd drag Honda and like most probably aren't that worried about lag. This guys first question was about how laggy it would be. If this guy didn't care about lag, I'm sure this and many other options would work just fine for him too

 

Yes and your response is an open T3 he will regret?

You must have been answering the last portion of his post? (thoughts on turbo?)

I'd guess it would spool 800rpms later than a 6466 gen2 t3 .82

He wants to run a bigger turbo and pick up 12mph in the 1/2 also said he has a fair amount of back pressure already so by going to the 1.05 with a larger wheel will reduce that.

 

From what I've been told by a very reputable source, by going open anything will be real laggy. He can reduce back pressure by going to a bigger housing on the 6466 if one is available. By upgrading to this laggier turbo will most definitely reduce back pressure in it's own in a t4 twin scroll configuration. Some people are only seeing 400rpm lag over the 6466 with the 6870 in a T4 1.15 a/r twin scroll.

Check out this thread!


https://www.evolutionm.net/forums/ev...plenty-go.html

 

Id rather not have to change up my whole setup as I have a custom downpipe, licp, oil lines etc all made for this setup now. Would i like a t-4 setup? of course. Would I like to stay t-3 and meet my goals? Of course. I'm trying to see if I can drive this on the street and enjoy it while still hitting my goal is what I'm after. 9.50's in the 1/4 and 195MPH in the 1/2 is my ultimate goal with reduced backpressure for a happier engine.

 

Pm Johnbradley, he will give you the info your looking for!

 

I think it will act alot like a super 99

 

I wouldnt run it in single scroll because of response between shifts. The one car I saw with a single T4 was horrible, the 1.05 T3 will be better but not by much I dont think. Twin scroll for both response and ultimately less backpressure.

 

Sounds like I need to switch to a T4 platform then if i want to stay Precision and go bigger than a 6466

 

Not sure this info will help at all but I ran a 6466 T4 1.15 housing and swapped to a 6870 T4 1.32 housing. On paper it is 400rpm more lag. On the street I honestly can't even tell. The car also made ALOT more power with less boost. I'm out of injector and am having a 8 injector Mani setup built so I can really push this setup further. Go twin scroll if you can.

 

im also looking to upgrade from 6466 vband standard facing to 6870 T4 ts 1.15AR forward facing any idea on the spool difference between the 2 ...

 

How much power are we talking about before maxing out 4 injectors? and how much boost?

 

Any updates on the T3 6870? Anyone diving in?