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Torque convertor thoughts
Posted: Wed Jan 13, 16 5:54 pm
by MilesnMiles
With the trans out I'm considering a new convertor.
My cars not so easy to recommend for as its a 340 in a B body with 3.23 gears.
I'm thinking 2,400 which would also accommodate deeper gears if I go to 3.55 or 3.73
Any thoughts chaps?
Current convertor is B&M 2,000 stall which is a bit sluggish if I jump on it although works perfectly for normal driving
Posted: Wed Jan 13, 16 6:32 pm
by Pete
I thought you were selling the car?
I would definitely go with a more lose convertor than you currently have to allow the 340 to sin up a bit more.
From my experience, I have NEVER had a convertor that stalled later than advertised - they always stall earlier (behind Big Blocks / Strokers); so I would consider going a bit higher than advertised.
Mind you, a 340 rev-monkey in a heavy car with "soft" gears may result in the converter stalling a bit later.
Lucky dip time unless you get one built for you knowing your cam / gear / weight data. Then it gets expensive.
Posted: Wed Jan 13, 16 7:04 pm
by Blue
I'd be tempted to go for 2800 myself, but without knowing the cam spec it's all a bit of a guess...
Posted: Wed Jan 13, 16 8:51 pm
by MilesnMiles
Cam is 224/230@50
Lone separation 110
Lift is 0.47"
Not radical
I agree that stall can vary with lower torque motors. I could have a custom 11" form PTC custom built for sensible money. Just concerned they recommend another 2,000 stall which isn't enough for the way the car runs.
As for sale Pete, who knows, but I do like things done properly whilst I own the car
Posted: Thu Jan 14, 16 11:17 am
by MilesnMiles
Cant justify the cost of a Dynamic (I wish), has anyone come across JW convertors? Looking at this one
http://www.jegs.com/i/JW-Performance/56 ... Id=2930373
Posted: Thu Jan 14, 16 11:29 am
by Blue
JW have been around a good few years, that will probably work out for you. That's a very good price, performance convertors were about £600 back in the '80's.....
Posted: Thu Jan 14, 16 11:43 am
by MilesnMiles
Thanks Blue, looks good. I just couldn't find an on-line recommendations from yank Mopar forums.
Most favour TurboAction, PTC and Dynamic according to need and budget.
Posted: Thu Jan 14, 16 11:55 am
by Blue
Yes they are all the top quality items that will cost you double. For what you are doing, a cheap and cheerful one should do. Usually an expensive convertor is built from better components to last longer, and should have a lower percentage of power loss at the top end due to slippage. As ever you pays your money and takes your choice.
Posted: Thu Jan 14, 16 2:09 pm
by Pete
I have used JD before and rate them highly, I had a 5500 stall one in the Dart.
Posted: Thu Jan 14, 16 2:14 pm
by MilesnMiles
Pete, JD or JW?
Posted: Thu Jan 14, 16 2:43 pm
by Pete
Sorry, typing whilst eating - JW, I was on the JD last night........
Posted: Thu Jan 14, 16 3:11 pm
by MilesnMiles
I se what you did there!
Posted: Thu Jan 14, 16 3:28 pm
by morgan
Let us know what the shipping is on that. I need to tackle mine at some point - its way too keen.
Posted: Thu Jan 14, 16 3:34 pm
by MilesnMiles
Morgan, it'll be free shipping to Florida and then down to Ron to ship over.
seems the best bet as i'm not in a hurry.
Posted: Thu Jan 14, 16 3:38 pm
by MilesnMiles
Summit don't do the same convertor, but a similar one costs $175 (£120) inc shipping and taxes which seems reasonable unless the £ to $ continues to slip.