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8" convertor don't understand #1345086 12/02/12 07:16 PM 12/02/12 07:16 PM
Joined: Jan 2004 Posts: 1,468 N.Y. sixpacksteve OP pro stock
sixpacksteve OP pro stock Joined: Jan 2004 Posts: 1,468 N.Y.	i had my convertor ste up for my motor 5500 stall, bout 550 hp worked great, was flashing bout 4500. put my new motor in bout 700 hp. ran on chassis dyno it flashed at 6200. i thought it would be the opposite. should of flashed lower? is this correct? Hell Hath No Fury Like Mine

Re: 8" convertor don't understand [Re: sixpacksteve] #1345087 12/02/12 07:26 PM 12/02/12 07:26 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	Converters have a "range" that is affected by the torque & HP of an engine. The stronger the engine, the higher it will "flash".

Re: 8" convertor don't understand [Re: sixpacksteve] #1345088 12/02/12 07:26 PM 12/02/12 07:26 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: i had my convertor ste up for my motor 5500 stall, bout 550 hp worked great, was flashing bout 4500. put my new motor in bout 700 hp. ran on chassis dyno it flashed at 6200. i thought it would be the opposite. should of flashed lower? is this correct? More TORQUE moves the stall point UP...nothing to do with HP

Re: 8" convertor don't understand [Re: MR_P_BODY] #1345089 12/02/12 07:30 PM 12/02/12 07:30 PM
Joined: Jan 2004 Posts: 1,468 N.Y. sixpacksteve OP pro stock
sixpacksteve OP pro stock Joined: Jan 2004 Posts: 1,468 N.Y.	thats fine. for some reason i thought it would move down. thanks Hell Hath No Fury Like Mine

Re: 8" convertor don't understand [Re: MR_P_BODY] #1345090 12/02/12 08:34 PM 12/02/12 08:34 PM
Joined: Aug 2003 Posts: 1,313 Charlotte, NC L LSP pro stock
LSP pro stock L Joined: Aug 2003 Posts: 1,313 Charlotte, NC	[quoteMore TORQUE moves the stall point UP...nothing to do with HP Maybe not in your case, but there are applications where the converter stall or flash is closer to the power peak than torque peak.

Re: 8" convertor don't understand [Re: LSP] #1345091 12/02/12 08:55 PM 12/02/12 08:55 PM
Joined: Jan 2004 Posts: 1,468 N.Y. sixpacksteve OP pro stock
sixpacksteve OP pro stock Joined: Jan 2004 Posts: 1,468 N.Y.	peak is suppose to be some where around 6800-7000 Hell Hath No Fury Like Mine

Re: 8" convertor don't understand [Re: sixpacksteve] #1345092 12/02/12 09:10 PM 12/02/12 09:10 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	Quote: peak is suppose to be some where around 6800-7000 Would that be peak horsepower? I'll bet it's a big block. I've seen race combos that work well with converters that flash about 1,500 rpm less than the shift points. But it mainly depends on torque peak. Other variables affect the optimum #'s.

Re: 8" convertor don't understand [Re: sixpacksteve] #1345093 12/02/12 09:32 PM 12/02/12 09:32 PM
Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,587 Great Neck,LI,new york	How are you testing flash? HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: 8" convertor don't understand [Re: hemi-itis] #1345094 12/02/12 10:18 PM 12/02/12 10:18 PM
Joined: Feb 2005 Posts: 982 western pennsylvania b1dartsport super stock
b1dartsport super stock Joined: Feb 2005 Posts: 982 western pennsylvania	I have an A-1 converter that stalled 4800 on a 360 super stock motor and 5500 when I used it in my 408 stroker. All converters are built to stall a certain rpm by a certain torque number,if you move the torque number up the stall rpm goes up.

Re: 8" convertor don't understand [Re: b1dartsport] #1345095 12/02/12 10:32 PM 12/02/12 10:32 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	An Autometer Ultimate playback tach is an excellent tool to see what's going on with converter flash, rpm drops, shift points, etc. You can even see different flash points when the weather changes, mainly between seasons.

Re: 8" convertor don't understand [Re: sixpacksteve] #1345096 12/03/12 12:18 AM 12/03/12 12:18 AM
Joined: Aug 2003 Posts: 43,172 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,172 Bend,OR USA	Quote: peak is suppose to be some where around 6800-7000 Like most race parts you will have to find out what RPM the motor and trans go the fastest at, not a predetermined RPM My first pump gas stroker made peak torque at 4500 RPM and peak HP at 5600 RPM, the stupid car woould run its fastest ET and MPH by shifting it at or above 7200 RPM Go to the track and make a plan to run the car enough to make it consistent and then try shifting it at 5500 RPM in all gears for several runs and then try 6000 RPM for several and then 6500 RPM, the goal is to find the RPM that makes the car the fastest, with me anyways Once you find the RPM spread, say it runs the best by shifting at 6500 RPM but not lower than 6500 RPM or higher than 7000 RPM, try shifting it at 6700 RPM for several runs and whittle a away hundred RPM at a time until you find out what it likes at that track that day Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: 8" convertor don't understand [Re: Cab_Burge] #1345097 12/03/12 09:22 AM 12/03/12 09:22 AM
Joined: Jan 2004 Posts: 1,468 N.Y. sixpacksteve OP pro stock
sixpacksteve OP pro stock Joined: Jan 2004 Posts: 1,468 N.Y.	the chassis dyno shows where it flashs, going to call lenny at ultimate and give him the specs so he can reset it. didn't think there would be such a huge difference. probably need to change rearend gears, and bigger tires also! Hell Hath No Fury Like Mine

Re: 8" convertor don't understand [Re: sixpacksteve] #1345098 12/03/12 01:22 PM 12/03/12 01:22 PM
Joined: Jan 2003 Posts: 8,026 Tulsa OK Bad340fish master
Bad340fish master Joined: Jan 2003 Posts: 8,026 Tulsa OK	My converter always flashed higher on the chassis dyno vs real world. Might be something to consider. 68 Barracuda Formula S 340

Re: 8" convertor don't understand [Re: b1dartsport] #1345099 12/03/12 03:07 PM 12/03/12 03:07 PM
Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio dartman366 I Live Here
dartman366 I Live Here Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio	Quote: I have an A-1 converter that stalled 4800 on a 360 super stock motor and 5500 when I used it in my 408 stroker. All converters are built to stall a certain rpm by a certain torque number,if you move the torque number up the stall rpm goes up. same thing here except it stalled at 5900 behind my 408 and 4800 behind a 360. Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.

Re: 8" convertor don't understand [Re: dartman366] #1345100 12/03/12 06:35 PM 12/03/12 06:35 PM
Joined: Jan 2004 Posts: 1,468 N.Y. sixpacksteve OP pro stock
sixpacksteve OP pro stock Joined: Jan 2004 Posts: 1,468 N.Y.	so if i had a 1500 hp motor this wouldn't flash at all? Hell Hath No Fury Like Mine

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