Stall speed

Need to get my converter re-stalled as it is really tight from a previous setup I had on the truck. The new setup is a 64/67/14 over a S475 (1.32 A/R), 5x14's, 181/210, Marine style pistons (about 16:1 compression), and a mildly ported and matched head/manifold. Elevation is about 3000-4000 ft.

Truck is used as a daily driver now and will tow (~8000 lbs). Problem I have now is the converter is so tight I have to idle it at 1000 rpm's in park so it doesn't kill the motor when in drive with the AC on. It also makes stopping a little bit of a pain as it is always trying to push through the brakes.

What would be a good stall speed for this setup and still be a good street/tow truck? Was think about 1800-2000 rpm.

what convertor do you have now and whats the stall speed? do you know which stator was used?

im trying to select a good setup for my work truck now.

Call Phil at Diesel Performance Converters and tel him your set up and he will get you fixed up.

15 Blade Left Cut

So I found out the converter is a 15 blade left cut (I thought it was tighter than that, maybe a 10/20 or 800/300).

Only annoyance with it right now is that I have to use both feet when I come to a stop to keep the idle from dipping down to around 500 rpm. Anybody else having this happen with a 15 blade left cut?

Here is a video to get an idea of what it does when trying to boost launch. Does that act like a 15 blade left cut? Jumps to around 1500 rpm before any boost comes on.

[ame="http://s32.photobucket.com/user/turboman2425/media/MVI_0844_zpse24633d4.mp4.html"]MVI_0844_zpse24633d4.mp4 Video by turboman2425 | Photobucket[/ame]

Started to push through the brakes at around 10-15 psi, and I was standing on them pretty good.

If you are using hydraulic fluid, drain it out and put atf back in, itll loosen things up a little.

Internal Clearance makes a difference too. I had all those issues , switched to a suncoast 1800 stall- much better.

My ATS was too tight I sent it to DPC he loosened it up a couple hundred but I wish I went to 17-1800. It flashes to 1500 now before it would barley pull 1250

i know this isn't part of you question but have you tried playing with your governor springs at all?

jlbayes said:

i know this isn't part of you question but have you tried playing with your governor springs at all?

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I hope your not referring to me. I have chased smoke issues for yrs if 1 more person mentions the word "spring" im going to buy a new ford :lolly:

Mine idles at 500rpm or so when its in drive with the AC on. Been thinking of bringing that up a little, but dont want the engine fighting me when Im trying to come to a stop.
That converter is probably too tight for those twins. I have a 62 single and its a little on the low side especially with the cam. Moves the efficiency sweet spot up and the converter wants to make the motor work at a lower rpm.

jlbayes said:

i know this isn't part of you question but have you tried playing with your governor springs at all?

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Yep, played around with those a lot to try and get it to work like I wanted. Didn't fix my complaint but I think I got it about as good as I am going to get it right now.

Gasoline Sucks said:

I hope your not referring to me. I have chased smoke issues for yrs if 1 more person mentions the word "spring" im going to buy a new ford :lolly:

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LOL no sorry the op!

turboman1 said:

Yep, played around with those a lot to try and get it to work like I wanted. Didn't fix my complaint but I think I got it about as good as I am going to get it right now.

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ok, cause when i put the 5ks in mine i had to play with them for a weekend to get them right. that and adjusting the throttle linkage from carls apps kit sucks when its on the truck.