All of the talk lately about converters has really started me thinking about getting one. I asked my buddy who has a very stout 383 Monte Carlo to let me drive his. It has a 9.5" 3200-3400 stall in it. I don't know how to explain it, but it had the "slipping" feeling when first starting off.

Does the size of the converter cause that, or the stall speed? I really want to get a 3000-3200 stall, but don't want to have any driveability issues or premature tranny failure. A cooler would go in at the same time as the converter swap, and I was thinking about doing a billet/'vette servo at the same time. 3.73's and an Eaton are also in the works right now. I think that this combo could easily get me into the low 14's. Might make for an interesting combo.

Any thoughts?

 

After driving with the stock converter and then putting in the yank 3200, it took a while to get used to. My yank is at Yank's right now and with the stock converter back in I can't drive the truck at all. It shifts too hard 1st to 2nd and I lose the tires if it's wet out...not fun. With my mods right now, the yank is the more driveable of the two. The converter also keeps the truck from shifting as hard since it "absorbs" some of the shift due to the slippage.

 

Thanks! Can you notice the conveter slipping from take-off? I know that a high-stall converter sounds cool at low speed, but does the slippage affect tranny wear?

 

It's not the tranny slipping. It's the converter not sending all the power through it, until the stall speed is reached. It makes it easier, to me, to drive in the rain. Not a lot of power unless you give it enough gas to stall it up. It shifts normal even when the converter hasn't stalled up. The reason for the cooler, obviously, is b/c the converter and tranny share the same fluid, and the converter heats it up...bad for tranny. The only way you know you have the converter is b/c you have to give it a little more gas and the engine revs almost like it was in neutral. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" /> Give it 1/2 throttle on take off and the engine stays at stall speed during the 1-2 shift and 2-3 shift until you start pulling more rpms than the stall speed. You're right, that sounds cool.

Get yours, and after 2 weeks you'll wonder how you made it before without one. <img border="0" alt="[burn out]" title="" src="graemlins/gr_burnout.gif" />

 

What about mileage? My truck is my daily driver, and I've heard that a high stall converter will take my mileage way down.

 

All the converters are locking , so mileage won`t be hurt unless you are punching it a lot and unlocking the converter.Once you are at cruising speed it locks up and there is no slip...Your stock converter also unlocks and locks..a stall converter will really wake up a heavy truck.. With stock exhaust, you would probably not even know you changed converters,,,,,,,until you punch it.. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

I'm glad you brought this up Scream. I've been contemplating a new converter and I'm not sure what stall would work best for me. I don't plan on towing anymore either so I may go with a smaller diameter converter. I need something "streetable".

 

Thank you sir! I really appreciate the info. I can't see spending $750 on headers now when a converter will take off more ET for about the same money! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Scream:
<strong> Thank you sir! I really appreciate the info. I can't see spending $750 on headers now when a converter will take off more ET for about the same money! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">thats how much it cost for a installed TC?????????????????????

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Tokez420:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Scream:
<strong> Thank you sir! I really appreciate the info. I can't see spending $750 on headers now when a converter will take off more ET for about the same money! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">thats how much it cost for a installed TC????????????????????? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Not even installed!!!! The converter alone is either $750 for the Yank TT3000 or $895 for the Yank TT3200!