suncoast converter - Diesel Truck Forum -
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post #1 of 5 (permalink) Old 07-23-2007, 01:04 AM Thread Starter
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suncoast converter

truck is stock for now .. looking into a converter plan to build up to around 400HP one day would the converter below be a little to aggresive for a stock truck untill the mods are done ? below is a description of converter ...

""""Part No. 2361838-3D

This torque converter has a substantial lower stall, approx 650 rpm lower than factory with an efficiency rating of 93%. This converter should be used only if you have a quick spooling turbo and are willing to accept firm engagements. This converter has a steel CNC machined billet cover, steel CNC machined billet piston, triple clutch discs, billet CNC machined radial pull stator, Torrington bearings, furnace brazed impeller with hardened hub, and hardened steel turbine splines with reinforced mountings"""""
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post #2 of 5 (permalink) Old 07-23-2007, 01:07 AM
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You'll be fine, you'll love it. I have a ATS 5 star (5 clutch disks) and a really low stall. My truck is almost stock.

Buying a Converter before modding the engine is probably the smartest thing you can do. Do that and then somethign to the v/b and you'll really love your truck. It really does wonders and you'll sware you got some extra power from somewhere.

EDIT: Then after that you can run a t/c switch which allows you to lock it up in 4th, 3rd and 2nd ! Manually* And most people can pull this mod off for free.

*Manually while the tranny is in O/D or Drive.
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post #3 of 5 (permalink) Old 07-23-2007, 03:24 PM Thread Starter
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thanks just wanted to make sure that it wasnt overkill. but form what i see and hear form you guys this is one place to MAKE SURE you overkill
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post #4 of 5 (permalink) Old 07-23-2007, 09:53 PM
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A 93% converter is pretty tight. Maybe a little too tight for a daily driver really. They work well if you're towing a lot because it will have better fluid coupling down low and keep heat down a little. For example, the Stock converter is a 72% and most A/M converters for daily drivers are 88-89%.

If you run big injectors and any kind of a laggy turbo, you'll find that smoke is hard to control down low. Also, when the converter engages going into gear, it will be quite a kick. I personally think that 93% is a bit over kill for a daily driver, and its pretty aggressive for anything other than a truck used for heavy competition. A 91% is still a little stiff, but works well with most towing applications.

I think an 88-89% would be best, just a little smoother around town, and plenty capable of holding the power you're looking to put out, with out any issues.

2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

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post #5 of 5 (permalink) Old 07-24-2007, 12:40 PM
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I have a suncoast torque converter and valve body that came out of a pulling truck and it does shift hard. I do tow with it though and it works really well with a load. The daily driving though you will have to get use to the hard shifts.

99 Cummins 2500
Amsoil CAI,BD boost elbow,Comp hot,Fass 150,Full billet Trans built by joe wilcocks,BD T/C and valvebody,lock up switch,BD exhaust manifold,125 hp sticks,ATS intake,6in. mitr cut stacks
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