Converter cores

One of the most critical areas of a automatic race car

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fourtenposi
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Converter cores

#1 Post by fourtenposi » Wed Mar 25, 2009 7:48 pm

Hello,

Can anyone tell me what the differance performancewise I should see between a saturn and opel core? I have been told that the opel core has a significant advantage. With the stall speed being the same, what would you expect?

Thanks
Bill Simpkins
74 Nova
SBC 406
3240 pounds
Speierracing heads

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Best 9.87@131 on the rev limitor 1 Feb 201

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vegaracer
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Re: Converter cores

#2 Post by vegaracer » Thu Mar 26, 2009 9:05 am

I don't know if this is you over on yellow bullet, but there was the same question being asked there: http://www.yellowbullet.com/forum/showt ... p?t=123487
Feenstra's Towing

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fourtenposi
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Re: Converter cores

#3 Post by fourtenposi » Thu Mar 26, 2009 10:50 am

It is my question over there, just trying to get more views. Everyone says I will be very happy with the change, but no one has yet to explain what about the core is better. I will throw it in the car and see what happens.
Bill Simpkins
74 Nova
SBC 406
3240 pounds
Speierracing heads

Image

60 1.29 (10/15)
1/8 6.05@111 (11/15)
Best 9.87@131 on the rev limitor 1 Feb 201

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John_Heard
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Re: Converter cores

#4 Post by John_Heard » Thu Mar 26, 2009 1:56 pm

I'm sure when Marty gets some time he'll reply to this and give you an answer...

Marty Chance
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Re: Converter cores

#5 Post by Marty Chance » Wed Apr 01, 2009 2:34 pm

the difference between the 8" Saturn and Opel core is the amount of surface area on the pump impeller fins. The Saturn has drastically less fin area and therefore has less coupling capability. This may be ok if you have a short stroke, high rpm , light weight dragster or altered but the Saturn core is NEVER ideal , it is something some companies have settled for. This is the short version of the answer with out boring you to death. Hope this helps
Neal Chance Racing Converters
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fourtenposi
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Re: Converter cores

#6 Post by fourtenposi » Thu Apr 02, 2009 7:59 pm

Thanks marty, that makes sense. So would you expect the car to pick up the entire way down the track or just the top end because of its more efficent lockup?
Bill Simpkins
74 Nova
SBC 406
3240 pounds
Speierracing heads

Image

60 1.29 (10/15)
1/8 6.05@111 (11/15)
Best 9.87@131 on the rev limitor 1 Feb 201

Marty Chance
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Re: Converter cores

#7 Post by Marty Chance » Thu Jun 04, 2009 10:13 am

it should work better everywhere (as long as the new converter is right for the combo)
Neal Chance Racing Converters
Home of the World's Fastest Automatic Doorslammers!
www.racingconverters.com

fourtenposi
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Re: Converter cores

#8 Post by fourtenposi » Thu Jun 04, 2009 12:06 pm

Thanks Marty

Looks like the converter pick me up just under a 10th. Trans temps dropped about 20 degrees over the previous converter. Makes it alot easier to hot lap that thing.

Thanks
Bill Simpkins
74 Nova
SBC 406
3240 pounds
Speierracing heads

Image

60 1.29 (10/15)
1/8 6.05@111 (11/15)
Best 9.87@131 on the rev limitor 1 Feb 201

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