Suncoast Trans. 1/4 mile reduction? - Ford Powerstroke Diesel Forum
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Old 07-31-2008, 05:09 AM
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Suncoast Trans. 1/4 mile reduction?

Has anyone measured the reduction to the 1/4 mile with just the addition of a fully done up Suncoast trans?

My truck goes in on Monday for the new trans.! I am hoping to get to the track next Friday the 8th, schedule permitting.

Mike
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Old 07-31-2008, 10:58 AM
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You prob. won't notice it besides the fact it can take more abuse. Im hoping you didn't add the new tranny just for the 1/4mile "improvement"
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Old 08-04-2008, 03:32 AM
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Quote:
Originally Posted by Goolsbymd View Post
You prob. won't notice it besides the fact it can take more abuse. Im hoping you didn't add the new tranny just for the 1/4mile "improvement"

No, I upgraded it for future mods..... I have heard that with the improved t.c. it should be much more responsive.....? and be more efficient. Being more efficient, I would expect an improvement to the 1/4 mile times, and an increase to MPG.

On my way to NEDP......

Mike
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Old 08-04-2008, 05:31 AM
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Your trans wasn't going out then right? Does anybody know how much the new torque shifts will hold before they let go?
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Old 08-04-2008, 05:44 AM
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You should come out of the hole harder so expect 2-3 tenths difference. Mileage will DECREASE around town (when the converter is unlocked) and remain unchanged on the freeway (when the converter is locked)
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Old 08-04-2008, 06:16 AM
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I am presuming that the suncoast converter would be tighter (more efficient) transferring more power to driving the truck and should get better economy (albeit slight)???
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Old 08-06-2008, 05:16 AM
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I got my truck back from NE Diesel Performance!

The Clutches were cooked in the 5th gear. This is what I have been concerned with from day one with this truck. It feel it was always slipping from day 1.

I am VERY pleased having the full lock-up come in in 2nd/3rd gear! It drives like I think it should now!

I cannot comment on the fuel mileage savings...... I am above 20 MPG, BUT I am driving it harder then before!

With the Spartan tune, it shifts VERY aggressivly, and pulls like a monster on the highway!

If it ever stops raining, I will have some new 1/4 mile times!

Mike
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Old 08-06-2008, 08:15 AM
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thats not good that 5th is shot. what do you think caused it?
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Old 08-06-2008, 08:22 AM
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Quote:
Originally Posted by Oilburnr View Post
I am presuming that the suncoast converter would be tighter (more efficient) transferring more power to driving the truck and should get better economy (albeit slight)???
The higher the stall (aka "looser") the converter, the higher the torque multiplication factor. So a looser converter will put more power down below its stall speed, but will eat mileage and heat up the tranny fluid in the process.
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Old 08-06-2008, 11:47 AM
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Quote:
Originally Posted by nordberg View Post
thats not good that 5th is shot. what do you think caused it?

I honestly think it was slipping from new. I have just turned 5000 miles on the truck and it shifted the same from the beginning.....

The fluid in my truck did not smell burnt, and the 1-4 clutch packs all were good?? I have never been into it in 5th gear to IMHO cause any real damage to the friction material..... Not enough road to cook the 5th gear!?

Mike
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