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Old 09-13-2011, 09:51 PM   #1 (permalink)
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Best single turbo for towing?

I am toying with the idea of building a towing twin setup, or the GOS performance cummins conversion twins, but the $3999.99 price tag makes wonder if this is the correct route for me to go.. Because of where the Ford heater box is, there is very little room between my turbo ( running a flipped manifold already) and the heater box.

I am currently running a BD super B special turbo combined with the mods in my signature. I think this turbo is great for performance and milage empty, but I find it slow to spool while towing, making it smoky before spooling and having to watch EGTs closeley.

If I were to "cheap out" and steer away from twins, what would be a good single turbo for daily use and towing my 5th wheel? Want quick spooling, low smoke, reasonable EGTs..and for it to work well with my current mods..

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Last edited by Mr. Bob; 09-13-2011 at 09:55 PM.
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Old 09-13-2011, 10:21 PM   #2 (permalink)
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If it were me I would keep the 64/71 and run a T3 spool flange.
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Old 09-13-2011, 10:46 PM   #3 (permalink)
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The S300 57-65-14 may be a good fit. That’s my choice as soon as I can get some $$. I am DD, towing and looking for some decent fuel mileage.

Not sure about the 5x.014's with the DV's that's a good bit of juice. I'm sure someone will chime in with hands on knowledge. Maybe it will change my mind too?
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Old 09-13-2011, 10:50 PM   #4 (permalink)
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I would do a 62/68/12.
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Old 09-13-2011, 11:01 PM   #5 (permalink)
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Quote:
Originally Posted by xzaq103 View Post
If it were me I would keep the 64/71 and run a T3 spool flange.
With my manifold flipped, I would not have enough space to run one without pushing my charger into my heater box
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Old 09-13-2011, 11:10 PM   #6 (permalink)
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Quote:
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I would do a 62/68/12.
The 68/12 would probably spool real fast, but how would much would that change EGTs?
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Old 09-13-2011, 11:36 PM   #7 (permalink)
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I have a 62/68/13 and it's great for daily driving/hot rodding but is not the best towing turbo by a long shot but it's not terrible either. Flat highway towing is fine easy to control egt's get it into the mountains and its real easy to get under it and it's hot and smokey real fast. That being said it's manageable to drive and the water meth kit I made up really helps. The biggest problem is the low end fueling, I think if the turbo would light quicker it would help out a lot,
I'm adding some .024 delivery valves in the next week and see what that does for spool up also I need to fiddle a bit more with the pre boost fueling because I don't think I've found the sweet spot yet.
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Old 09-13-2011, 11:54 PM   #8 (permalink)
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My 62/65/14 tows really nice with my mods but my injectors are smaller, I don't have the 2095 plug or the DVs. I could see things getting puuuuurty hot with those 3 mods. I could tow 9k without issue very easily with what's in my sig to the point that I can't even imagine needing or wanting any more mods for a tow rig. The thing was fast, didn't run hot, wasn't smokey, and towed like a dream. Maybe swap for an s362 and detune?
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Old 09-14-2011, 01:14 AM   #9 (permalink)
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It's a little different too with the Standard VS Automatic. I know with my 2002 powerstroke I went from the 1.0 exhaust housing on my Garrett 38R to a 1.15 and it was awesome, but that truck was automatic.

The standard trucks need the slightly smaller exhaust to get that turbo to light again after shifts.. The 71 exhaust wheel probably does not help fast spool up either.

I was looking around to see if I could go with a smaller exhaust housing on the Super B Special, but nothing so far...
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Old 09-14-2011, 12:44 PM   #10 (permalink)
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Quote:
Originally Posted by Mr. Bob View Post
It's a little different too with the Standard VS Automatic. I know with my 2002 powerstroke I went from the 1.0 exhaust housing on my Garrett 38R to a 1.15 and it was awesome, but that truck was automatic.

The standard trucks need the slightly smaller exhaust to get that turbo to light again after shifts.. The 71 exhaust wheel probably does not help fast spool up either.

I was looking around to see if I could go with a smaller exhaust housing on the Super B Special, but nothing so far...
that's true but even so my truck locks up at 65kmh when it shifts from 2 to 3. It locks and shifts into 3rd at the same time. If I have the pedal to the floor and am at max boost I lose so much rpm that the turbo barks

I mean, I can get like 25psi out of my turbo with the converter locked at 1700rpm without difficulty. and I can get 10psi easily at 14-1500rpm locked up without trying to hard. That's unloaded of course. Spool up of this turbo is pretty good when the converter is locked up. 1700rpm on a locked up trans is about where it lights HARD, at least on my setup. So even though you lose your boost between gears with the stick, you'd still be ok if you can get good boost down at 1700rpm. Shift when ya get to 2500+ towing and you'll be ok. Which you probably should do anyway since that's where max hp is (on a stock truck)

Basically what I';m getting at is if you went with a single for towing. A 62/65/12 or 14 would probably work wonders for ya if ya detuned a little bit (mainly talkin abou tthe DVs).
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Last edited by Richard LeBar; 09-14-2011 at 12:49 PM.
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Old 09-14-2011, 03:18 PM   #11 (permalink)
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im running a 63/68/15 non gated.... i towed about 7000lbs from calgary over the rockies into BC a month or 2 ago... i had to dial up my afc quite a bit to keep the smoke down, but it towed fine... if it starts getting hot, drop a gear. rpm's up around 2000-2500 on big hills. I had it @ 3k in 3rd pullin thru the snowsheds near the summit but it worked out fine, anywhere between 800-1000 on flat ground and driving by the EGT gauge up hills... it's a sacrifice, but when your towing your working.... not racing.
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Old 09-14-2011, 04:37 PM   #12 (permalink)
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i have a industrial 62/65/14 gated. spools super fast. maybe faster than stock. egts have never gone past 1300* but im curious on how this turbo and a 63/68 would compare myself? i wouldnt run anything ungated towing but thats my preference
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