Search found 193 matches

by Marty Chance
Wed Jan 15, 2014 9:35 am
Forum: Racing Converters
Topic: Possable Converter issue
Replies: 7
Views: 3208

Re: Possable Converter issue

7" is old school , we have much better technology that stalls higher, drops less on shift and locks up better out the back. In short it is a much better power transfer than the 7".
by Marty Chance
Mon Jan 13, 2014 5:41 pm
Forum: Racing Converters
Topic: Possable Converter issue
Replies: 7
Views: 3208

Re: Possable Converter issue

converter being a 7" is why you see the 1.2 seconds to fully drop on the shift. There is a lot more to it, more than what we can discuss on line. If you call me i will be happy to give you all the info you need, just remind me you are the one from this thread.
Marty 316-542-9869
by Marty Chance
Mon Jan 13, 2014 1:36 pm
Forum: Racing Converters
Topic: Possable Converter issue
Replies: 7
Views: 3208

Re: Possable Converter issue

the converter you borrowed was it a 7" ? sometimes a converter design can have too much slippage and it takes some time for the converter to catch up, so in simpler terms is sounds like the converter has a lot of slippage right there and it takes 1.2 seconds to recover. I could tell you more if i se...
by Marty Chance
Mon Dec 09, 2013 8:03 am
Forum: Racing Converters
Topic: 1/4 mile converter slip??
Replies: 12
Views: 7440

Re: 1/4 mile converter slip??

Mark good to hear from you, I have an SB2 motor also
wish you and yours a very Merry Christmas
Marty
by Marty Chance
Fri Dec 06, 2013 1:00 pm
Forum: Racing Converters
Topic: 1/4 mile converter slip??
Replies: 12
Views: 7440

Re: 1/4 mile converter slip??

Wheels i would recommend you shift at 7000 and raise the stall on the converter so it drops to 6200 on the shift. This will also help the car be more consistent as conditions of the air change. Bracketracer - the terms i used "low torque" and "high torque" are very vague and variable. A "low torque"...
by Marty Chance
Tue Nov 26, 2013 7:40 am
Forum: Racing Converters
Topic: 1/4 mile converter slip??
Replies: 12
Views: 7440

Re: 1/4 mile converter slip??

could you give me some specs on the car
dyno ???
cubic inch
bore
stroke
compression
transmission ratios
cylinder heads
carb size
by Marty Chance
Tue Nov 26, 2013 7:38 am
Forum: Racing Converters
Topic: 1/4 mile converter slip??
Replies: 12
Views: 7440

Re: 1/4 mile converter slip??

sorry it took me so long to reply
i will be happy to look at the video\
the reason the rpm drops to the same thing no matter how high you shift, is the engine is not making any more power when you take it higher than 7000.
Marty
by Marty Chance
Thu Nov 21, 2013 8:36 am
Forum: Racing Converters
Topic: 1/4 mile converter slip??
Replies: 12
Views: 7440

Re: 1/4 mile converter slip??

slippage is a necessary thing and the amount you need is dependent on many variables like ratio split in the transmission and the torque curve of the motor. The best way to accelerate is to keep the motor "happy". If you lock up the converter too fast you will labor the motor (lug) and the accelerat...
by Marty Chance
Thu Oct 03, 2013 7:11 am
Forum: Racing Converters
Topic: Flash RPM?
Replies: 9
Views: 5108

Re: Flash RPM?

this varies from motor to motor greatly. For example i have a motor with 3.750 stroke and changing launch rpm from 3800 to 3900 makes a significant difference but on my 3.500" stroke motor i can vary the launch from 4000-5800 and see very little difference (same blower F1R) so my point is , It is ve...
by Marty Chance
Tue Oct 01, 2013 10:37 am
Forum: Racing Converters
Topic: Flash RPM?
Replies: 9
Views: 5108

Re: Flash RPM?

This question has so many variables I would rather look at a data log with you and see if we could point you in a direction that would help your program go faster. The best way to show me your data log is to link our computer screens through www.join.me. Just go to join.me and click on the "start me...
by Marty Chance
Tue Feb 19, 2013 7:18 am
Forum: Racing Converters
Topic: Chance Bolt together Question
Replies: 1
Views: 2618

Re: Chance Bolt together Question

first i would check the sprag in the converter. With the stator sitting on a bench with the big self enclosed bearing facing up, take your left hand and hold the alum. stator and with your right hand put two fingers in the sprag and the sprag should ratched clockwise and lock counter clockwise. If t...
by Marty Chance
Thu Jan 24, 2013 7:14 am
Forum: Racing Converters
Topic: Stator?
Replies: 2
Views: 3077

Re: Stator?

very observant, first person to catch that. just a design concept
by Marty Chance
Thu Jan 24, 2013 7:10 am
Forum: Racing Converters
Topic: Transmission Fluid Type
Replies: 7
Views: 5165

Re: Transmission Fluid Type

stay tuned, we are working out the details to bring to the racing world a trans fluid that has never been comercially available to the public. Testing shows it makes any application quicker and faster. And the higher the rpm and power level the greater the gain. Hopefully by spring we will have it a...
by Marty Chance
Thu Jan 24, 2013 7:05 am
Forum: Racing Converters
Topic: Need help with bolt otgether converter
Replies: 1
Views: 2680

Re: Need help with bolt otgether converter

checking diode with converter assembled. put a stator support spline into the diode spline and turn "quickly". The diode should ratchet clock wise and lock counter clock wise
by Marty Chance
Thu Aug 30, 2012 1:01 pm
Forum: Racing Converters
Topic: New cam and heads... What stall??
Replies: 23
Views: 9494

Re: New cam and heads... What stall??

WOW really good lookin street rod! next thing you will need is some data, you need something on the car that records at least engine rpm going down the track, then we can really dial it in!
Marty Chance