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Old 02-23-2018, 05:03 PM   #61
jasonc

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Stay with the divided .91 over the open .88. I don't have any experience with the .80, is it undivided?
 
Old 02-23-2018, 05:52 PM   #62
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Absolutely^. .91 is smallest I would go.
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05.5 QCSB Shotpeened NV5600 - 994hp/1650tq, 6.7, Wagler Rods, QSB Pistons, 625's, Oversized Valves, ZZFab, P&P, 150%, Dual CP3, 69/73/1.0 & 82/96/1.32
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Last edited by Broaner; 02-23-2018 at 05:54 PM.
 
Old 02-23-2018, 05:58 PM   #63
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You will loose spool up and drivability with the .88 open scroll. Definitely the .91 turbine housing.

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Old 02-23-2018, 08:12 PM   #64
Dom_c13b

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I have a 369 with the .91 t4. I can get 15psi by 1600rpm if I play with it. Stay with the .91. It drives absolutely great. I put down 825 at the tires last time I was on the dyno. I also have a customer with a 369 with the 1.0 and only 60% injectors in the 775 range.
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Old 02-23-2018, 09:27 PM   #65
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Thanks for the assurance guys. That is what I was looking for
That truck made 825 with DDP 220's?
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Old 02-23-2018, 09:28 PM   #66
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Quote:
Originally Posted by blackmega3500 View Post
Define driveability!
Better spool up than this 467.7 on a hot day.... ugh
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Old 02-23-2018, 09:31 PM   #67
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Quote:
Originally Posted by Dom_c13b View Post
I have a 369 with the .91 t4. I can get 15psi by 1600rpm if I play with it. Stay with the .91. It drives absolutely great. I put down 825 at the tires last time I was on the dyno. I also have a customer with a 369 with the 1.0 and only 60% injectors in the 775 range.
Man that's great! That tells me I'll be just under 800 as well with my sticks for now. And with way less lag around town.
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Old 02-24-2018, 01:55 PM   #68
Dom_c13b

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I should update my sig, my current injectors are BD 100% over nozzles. They only flow about 80% over stock on the flow bench. But yes I put down 825 with these nozzles. I had put down 772 with the DDP's, and that was on a mustang dyno that's reeeal stingy.
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Old 02-24-2018, 10:05 PM   #69
duramax 55

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Quote:
Originally Posted by SixOhh View Post
About to order the 369. I am leaning twords a .88 or .80 over the .91 ar. The power up top is close v.s. spool up time on the .80. It lights about 3 seconds faster .

I already have a t4 divided by stainless, should that factor in on my a/r choice for spool up on twin scroll or Not? Or do I have to stay divided?

If I can gain a lot of driveability and only sacrifice say 15 up wouldn't you for your DD?
i have a 3rd gen sxe 369 with a 91 t4 housing hx40 flange i will be selling,let me know if you interested,thanks
 
Old 02-24-2018, 11:53 PM   #70
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I've said it once and I'll say it again.... the sxe turbine flows A TON and with the 1.0 you need serious heat to stay on top of it.
please explain.
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Old 02-25-2018, 07:12 AM   #71
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It flows a lot of exhaust. You will not need serious heat to stay on top of it. We sell a lot of 1.0 housings to guys who bought the .91 and want to cool their trucks off. Very little difference in driveability with a common rail.
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Old 02-25-2018, 11:24 AM   #72
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I wouldn't necessarily call ~ 35lb/min "A TON", but it is roughly 2lb/min more than the T4 0.91AR, and the plural of RPM is RPM.
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Old 02-25-2018, 11:44 AM   #73
Dom_c13b

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I do run a 45mm gate with my setup as well. 369sxe with a .91 and a 45mm gate. Seems to do the trick for 4500rpm or so.
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Old 02-25-2018, 11:46 AM   #74
Dom_c13b

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I end up at about 50-55psi of boost and 70-75psi of Drive pressure.
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Old 02-25-2018, 12:42 PM   #75
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Feel free to take liberty with comments made and manipulate them to support your argument. But what I clearly stated was the ability of the numerically lower trim compressor to produce and operate more efficiently at a higher pressure ratio. This is not an opinion, it is a fact known by all turbo manufacturers.

It is very well supported by test cell data that this is the case, but apparently butt dynos are your only source of "facts". The 2lb/min difference in flow between the T4 0.91AR and T4 1.00AR would be noticeable, but again the older clipped design 73/80mm turbine would actually flow more than the current SX-E design albeit at a loss of efficiency.
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Old 02-25-2018, 02:36 PM   #76
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He never once said he didn't like the sxe line.... He referenced how the difference in trim on the 66 and 69 would impact the bottom line at the end of the day. It is funny to watch inducer size and the term billet and now the term MFS impact the diesel industry.

I love the sxe line. I have rebuilt more of them than the all of the old lineups combined. People seem to think the 369 is better for power than an S400 so they feel the need to run it as a 1000hp single.

Don't forget MOAR inducer means moar power I readed it on the forums.
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Old 02-25-2018, 03:09 PM   #77
Dom_c13b

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The 369 is a great turbo in the correct application. I have seen a lot of failures too, all due to over speed it seems. Hence why mine is gated. I think it would live very happy at 700rwhp, with the ability to put down 850 on occasion. If you want more you need to gate, no way around that.
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Last edited by Dom_c13b; 02-25-2018 at 03:12 PM.
 
Old 02-25-2018, 03:17 PM   #78
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Quote:
Originally Posted by blackmega3500 View Post
Fact:
You should have your title changed permenantly to "King Douche" Go find some turbine vacuum or something. Or go take peoples money for 8 more months.

This isn't an episode of law and order. "FACT" "FACT" STFU Kevin!
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Last edited by Broaner; 02-25-2018 at 03:24 PM.
 
Old 02-25-2018, 03:30 PM   #79
Dom_c13b

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Originally Posted by Broaner View Post
You should have your title changed permenantly to "King Douche" Go find some turbine vacuum or something. Or go take peoples money for 8 more months.

This isn't an episode of law and order. "FACT" "FACT" STFU Kevin!
Oh **** yea! This is good haha. He also thinks an unclipped turbine will flow more than a clipped.. I should not play into these internet games but I digress
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Old 02-25-2018, 04:31 PM   #80
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I hope you realize that all of your facts come direct from borg marketing materials....I am not saying they intentionally put out lies but at the end of the day their goal is to sell turbochargers and I imagine they would like to sell their new line more than the older cheaper box turbos...

Let's not lose sight of the big picture here.
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