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 Post subject: Converter ?
 Post Posted: Wed Mar 18, 2009 2:24 pm 
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Location: Letellier MB Canada
I'm looking a new converter. I've talked with TCS. They said for 800hp i could get away with using there roller sprag converter. There converter has a 2 year warranty with the roller sprag. My trans shop is telling me to get a converter with mechanical diode. I've heard the mechanical diode will slow down the mph, and they are about 300.00 more money than the roller sprag. I currently have my broken Coan converter getting a new sprag but i'm afraid if i use it again it will just break. Has anyone had luck not breaking a roller sprag or should i spend the extra money on the mechanical diode?

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 4:28 pm 
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I'd get an opinion from BTE, Coan and or Neal Chance. There is a point where HP will overcome the durability of a sprag. I got one at BTE being redone right now that had a trashed sprag.

Talk is cheap and i do think I'd talk to several of'em before I spent the money.

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 5:34 pm 
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If your doing 1/8 mile racing I'd just do away with the sprag altogether. You won't miss it. 1/4 mile racing you'll see some differences. That's always a hot topic for discussion.

George


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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 5:48 pm 
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I'll do i bit more reserch before i decide. It sounds like TCS is a good choice with there 2 year warranty. The guy told me there sprag is indestructable. He's also trying to sell it though. I filled out a request form at Niel Chance. We'll see what they say. BTE was closed. I'll try them tomorrow. I'm racing 1/4 mile and i don't want to lose mph so i'm leaning towards the TCS roller sprag converter. There also priced the best so far and offer a free stall change if its not 100%.

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 5:52 pm 
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If you call BTE, talk to Brian Robinson. Scott and I both deal with him and he seems to be a straight up guy.

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 8:15 pm 
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The way and how you do your burn out will have a defendant effect on how long your sprag will last :-k :-k =;

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 8:24 pm 
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There's nothing wrong with a sprag, if this is run in a dragster you don't want to use hard burnouts. What I mean is be letting off the throttle before the tires hit, most trouble happens at this point with a sprag.

Mark

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 9:17 pm 
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I run spragless just because one less thing to worry about. I've owned several converters by several different brands and the spragless I have now is very good consistent and et wise. It beats up on my sprag conv in mph but et's identical. If you want a good deal on a converter from TSI call the # on my avatar he'll give ya best deal on a TSI built to your combo.

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 Post subject: Re: Converter ?
 Post Posted: Wed Mar 18, 2009 11:01 pm 
 
I have broken a couple of sprags myself in the old nova the last one was a TCI and one PTC .
I now run the soft hit spragless BTE killer converter for me.


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 Post subject: Re: Converter ?
 Post Posted: Thu Mar 19, 2009 9:57 am 
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ron owens wrote:
I have broken a couple of sprags myself in the old nova the last one was a TCI and one PTC .
I now run the soft hit spragless BTE killer converter for me.


I talked with BTE. He said only 1 mph loss with a spragless converter. I can lose or gain 1 mph with just the change in weather or traction. I can live with that. I heard someware you can lose 5-10 mph. Thats what i'm concerned about. Have you lost any mph with your spragless converter?

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 Post subject: Re: Converter ?
 Post Posted: Thu Mar 19, 2009 2:48 pm 
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In having my old Trans Specialties converter switched from a Mechanical Diode to a spragless I lost about a tenth and 3 MPH in the 1/4. Everything else being the same, you can take any spragless, put a sprag or diode in it, and pick up time and MPH in the 1/4. Very little 1/8 mile change in most cases. The upside, with a steel stator and spragless, it will be almost indestructible and deadly consistent.


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 Post subject: Re: Converter ?
 Post Posted: Sat Mar 21, 2009 10:23 am 
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Ken0069 wrote:
I'd get an opinion from BTE, Coan and or Neal Chance. There is a point where HP will overcome the durability of a sprag. I got one at BTE being redone right now that had a trashed sprag.

Talk is cheap and i do think I'd talk to several of'em before I spent the money.


Sounds like solid advise to me.

Don

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 Post subject: Re: Converter ?
 Post Posted: Sun Mar 22, 2009 11:33 am 
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Niel Chance got back to me but he didn't give me any reccomendations on spagless or not. I filled out another form at altimate converters. A friend of mine uses there converter and loves it.

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 Post subject: Re: Converter ?
 Post Posted: Sun Mar 22, 2009 9:20 pm 
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Marty will recommend a mechanical diode most likely. Here is a good read on diodes, stators, spragless...
http://www.dragstuff.com/forum/viewtopi ... =16&t=2365


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 Post subject: Re: Converter ?
 Post Posted: Mon Mar 23, 2009 8:36 am 
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Thanks, Thats the information i needed.

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