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What would the weight limit be for tow with 300/200 injectors or larger. In general what's the limits with high horse power trucks and towing
 

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the stryker god
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Thats why chips has different positions, my truck will make 600 in the all out tune but the tow tune is 380. 380-400 is about all the drive line can sustain for long periods
 

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Swamped
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309 Posts
I tow 15k+ with 300/200's and a 71mm charger. Get a well dialed in tow file and you'll be fine.
 

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I tow 12k+ fairly often with my truck running 250/200's and a D66, as they said its all in the tuning.
 

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POWER Junkie
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Lots to learn
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Turbo size will be more of a limiting factor than inj or nozzle size. As has been posted, the tuner can limit PW, limiting the total amount of fuel injected to tame a "big" injector for towing ops.

But a big lazy turbo that produces no boost in your given towing powerband, won't provide the air your engine needs....it'll run hot, and produce smoke. You'll end up having to run higher rpms to keep egts down.

Suggest a 64-68 mm inducer size turbo for opns in the 1600-2200 rpm range, and a 68-71mm inducer size turbo for 1800-2400 rpm range. Turbo turbine housing A/R size, engine tuning, HPO system health, the specific injectors you use, gearing, tire size, trans, and the weight your towing will all be factors too. Best to ride in a rig that's close to what you want to build before committing.

I think the Borg Warner S467.7 FMW PN 178855 is great turbo for our trucks with the 200% nozzle, and it's gonna be real hard to beat for it's price point.

Borg Warner S400SX3 FMW (Billet 67mm) 400hp-900hp - AGP Turbochargers, Inc. Store
 
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