Racing Torque Converter for 4R70W

Rocketman · Sep 19, 2005

I had the opportunity to do a complete tech article on my new West Coast Racing Torque converter.
http://stangfreak.com/content/index.php?option=com_content&task=view&id=65&Itemid=1

My current 1/4 mile times are around 14.5

Any guesses as to what my 1/4 mile times will be with my new 10 inch 2800 RPM stall converter?

tomustang · Sep 19, 2005

few good tenth's, but that suspension will still hurt your time

streetstang03 · Sep 19, 2005

im looking at the same converter except for 3000 rpm.

TGJ · Sep 19, 2005

14.3 is my guess.

Good luck with that TC.

joshheat25 · Sep 19, 2005

YOU RUN 14.5 WITH 4.10'S Something is wrong there! you have similar mods to me and I ran 13.8 with 4.10's and could have done at least one or two tenths better. but the converter should improve your 60' greatly as long as you can hook up you should have 1.8-2.0 60's after the install and should be running under 14 seconds.

duece1019 · Sep 19, 2005

do you have drag radials? if not you need them.

joshheat25 · Sep 19, 2005

No I used to have DR's and they suck for the street and this is my Daily Driver so I just stuck street tires on it but i have no traction issues at the track just a lack of a stall issue! how are you running that time with stock gears??? doesn't make sense! Why do you have an aluminum d/s and don't have a gear up grade????

DBMSTNG · Sep 19, 2005

joshheat25 said:
No I used to have DR's and they suck for the street and this is my Daily Driver so I just stuck street tires on it but i have no traction issues at the track just a lack of a stall issue! how are you running that time with stock gears??? doesn't make sense! Why do you have an aluminum d/s and don't have a gear up grade????

what is your 60' time? you should run faster than 14.5 stock.

OinkAodeOink · Sep 19, 2005

I remember running a 14.5@97 in my completly stock 01 GT 4R70w 60' was 2.2
I believe.. I see no reason why with good tires and 410 gears you should'nt be in the mid 13's ( if your close to sea level)

Rocketman · Sep 20, 2005

OinkAodeOink said:
I remember running a 14.5@97 in my completly stock 01 GT 4R70w 60' was 2.2
I believe.. I see no reason why with good tires and 410 gears you should'nt be in the mid 13's ( if your close to sea level)

I race at LACR in Palmdale Ca. The track is at 2,700 ft above sea level. That's why I run 14.5. Yes I run a BFG TA Drag Radial.

Orions98GT · Sep 20, 2005

2700ft whew

duece1019 · Sep 20, 2005

joshheat25 said:
No I used to have DR's and they suck for the street and this is my Daily Driver so I just stuck street tires on it but i have no traction issues at the track just a lack of a stall issue! how are you running that time with stock gears??? doesn't make sense! Why do you have an aluminum d/s and don't have a gear up grade????

new england dragway is 90' above sea level, my car weighs 3,326 with me in it at the track, i got the aluminium d/s because it's lighter and stronger than the stock one, i'm going to get 4.10's in the spring, along with a sct xcal-2.

Rocketman · Sep 20, 2005

OinkAodeOink said:
I remember running a 14.5@97 in my completly stock 01 GT 4R70w 60' was 2.2
I believe.. I see no reason why with good tires and 410 gears you should'nt be in the mid 13's ( if your close to sea level)

I'm hoping that with this new converter, I'll see 13's.

Dark Knight GT · Sep 20, 2005

I don't know how sticky the BFG's are, but if you had traction problems with the 4.10's alone, wait until that converter goes in there. You'll think "traction problems". I speak with experience on this. Even with my strong rear and tight suspension on the rear, if I punch my car from a stop on the street, I'll spin those tires to the rev limiter and go sideways while going into second.

Best advice I can give you is heat those BFG's as well as you can, launch on idle, and launch at the second yellow light. As soon as you see the second yellow light hit, punch that throttle as fast as you can, then hold on tight. If you grip traction, if the skies are clear, and if the track is well prepped, you should see 13's easily.

Rocketman · Sep 20, 2005

Dark Knight GT said:
I don't know how sticky the BFG's are, but if you had traction problems with the 4.10's alone, wait until that converter goes in there. You'll think "traction problems". I speak with experience on this. Even with my strong rear and tight suspension on the rear, if I punch my car from a stop on the street, I'll spin those tires to the rev limiter and go sideways while going into second.

Best advice I can give you is heat those BFG's as well as you can, launch on idle, and launch at the second yellow light. As soon as you see the second yellow light hit, punch that throttle as fast as you can, then hold on tight. If you grip traction, if the skies are clear, and if the track is well prepped, you should see 13's easily.

Cool, thanks for the info.

big T · Sep 21, 2005

TGJ said:
14.3 is my guess.

Good luck with that TC.

I sure hope u r joking...a 3200 stall and nitto dr's knocked .6 (still with a good bit of spin off the line) off my 1/4, before the upper/lower cntrl arms. W/o tires, he wont run his best times, but he WILL run better than a 14.3. On kuhmo 712's I ran a 13.5, 13.58, 13.62 all at 101-102 mph.

big T · Sep 22, 2005

Rocketman said:
I'm hoping that with this new converter, I'll see 13's.

Easily! If u get that launch down, low 13's. Im currently running kuhmo escta MX's on my back rims for the street, and they are quite grippy. Dont spin as much as the 712's did.

Dark Knight GT · Sep 22, 2005

Rocketman, I'm now having a look at the West Coast converters for myself. It appears that Bill at WCC uses high friction carbon for the lining of his clutch plate units. I hear that is a very durable substance. Let us know how it holds up for you. Also, you might need to get a custom program for that thing, as the converter might alter the shift points. Be sure to keep the line pressure steady during WOT thorttle shifts, as if you don't get enough pressure to that torque converter clutch unit, you'll fry that clutch plate in an instant. As a matter of fact, Bill and I are suspicioning that might be what is causing pre-mature failure of some of these torque converter plate linings. I'm going to have a look into it.

EDIT: Damnit, I mispelled a word that totally changed things. I meant to put, "I'm now having a look at West Coast Converters", instead of "not having a look at West Coast converters". Forgive my ignorance.

As for the typical install, it will take around 4-6hrs worth of labor to install a converter. So figure that in there.

nl mex · Sep 23, 2005

how much does that TC retail for? I wanna knock some time off my ET also.....

streetstang03 · Sep 23, 2005

plan on an easy $500+ plus install.

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