Converter ?

[josh young]

What RPM's do most of you guys with 2800 stalls, stall at on footbrake. I don't really know much about converters but I've always heard that advertised stall was on transbrake not footbrake. I was under the assumption mine had a D5 in it, but is stalls around 25-2600 on footbrake. Does this seem right? Could it be a restalled D5. It has a te6031 turbo on it. I read about cars with terrible lag with the stock converter, It just don't seem as bad as what everyone else complains of. I guess I need to get it on the lift, pull the cover and see. Inputs, and comments appriciated!

 

[bison]

A d5 that stalls that high will not couple very well but it will spool any turbo like yours with a stage 3 turbine really fast. Typically a d5 can go to about 2200@0 before it struggles to couple the power with an engine that has high cylinder pressure and low rpm potential. Why dont you remove the inspection cover and take a look?

 

[josh young]

Thanks Bison, next time I have it on a lift at the shop I'll look. I think it may be a restalled D5, but thats just a guess.

 

[josh young]

I forgot about this thread. I checked, and the car does indeed have a restalled D5. It stalls about 2250-2300 at 0-1 #. I'm running it on race gas now, with a TT 110 chip, it rips out of the hole now.

 

[Dusty Bradford]

I forgot about this thread. I checked, and the car does indeed have a restalled D5. It stalls about 2250-2300 at 0-1 #. I'm running it on race gas now, with a TT 110 chip, it rips out of the hole now.

That's normal for a restalled D5 at 0-1# of boost. If it would have went 2600 or more the fins would be laid further over to raise stall but efficiency drops off quickly.


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[josh young]

Dusty, how much do you think I'm leaving on the table running this vs something like one of your 2800 10'' converters?

 

[JimP]

Dusty, how much do you think I'm leaving on the table running this vs something like one of your 2800 10'' converters?

I've had a re-stalled D5, it stalled around 2,400, I've had a PATS 10 inch it stalled around 3,000 I am now using Dusty's 10 inch lock-up, it stalls between 2,800 and 2,900 of the three converters I've had I like Dusty's the best, but both the PATS and the PTC were way better than the re-stalled D5 for over all drive-ability. What other mods do you have.

 

[josh young]

It of course has the TE 60 turbo. Then it has:
3'' DP
Gutted cat
3'' exhaust
BGC stretched IC
tt 5.7 chip
new 60# injectors
new 340 pump, hotwire kit, AFPR, and volt booster
heated 02
built 200
little stuff like: valve springs, hard pipes, valve cover breathers, 160* stat, K&N cone, tie down, magnecor wires, newer plugs, and coil packs, plate, etc. etc.
It runs clean, 0.0 knock nearly all the time. I think it's basically where I want it, maybe with the exception of a converter. Thanks!

 

[Dusty Bradford]

Dusty, how much do you think I'm leaving on the table running this vs something like one of your 2800 10'' converters?

Like Jim said. There is a noticeable difference in spool up and launch from a 12" to a 10". The 12" may run a little more mph due to the low stall speed but the et is better with a higher stall.


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