4160 Holleys missing check ball on the Vac Secs: HEMI - Moparts Forums

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Re: 4160 Holleys missing check ball on the Vac Secs: HEMI [Re: JohnRR] #1382511 02/07/13 12:39 PM 02/07/13 12:39 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	Quote: Quote: Quote: The main reason they use a check ball is to have the right size to open them and when you let off the throttle the check ball lifts and makes the opening larger so they close fast enough. If they just had the hole the size for opening the secondaries without the check ball they would not close fast enough. If you leave the check ball out you will have a larger port which should open them real fast and close like they should. As far as I have heard the check ball is there to lift off the gas and make the port larger so they close fast enough. Its gives the right size to open them and then gives the larger size when closing to bleed off the vacum fast enough. Ron That is right! Now the question is: do you think my engine will bog from too fast opening rate??? 528 HEMI 10,5:1 compression solid roller cam Intake- [Email]248@.050[/Email] & .604lift >Exhaust- [Email]254@.050[/Email] & .591lift >Lobe sep is 114 >lobe #`s: 4875B/4876B sn#-A6105 CNC ported heads flowing over 430 cfm intake 250 cfm exh 2,25" headers stage V duial inline intake with dual 4160 750 holleys Only way to find out is the run it , if it bogs change the springs . Start with a lite spring and give it a whirl.Too lite or two heavy will both cause it to bog.Find that sweet spot.Good tech question and good info. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: 4160 Holleys missing check ball on the Vac Secs: HEMI [Re: JohnRR] #1382512 02/07/13 12:49 PM 02/07/13 12:49 PM
Joined: Jan 2003 Posts: 9,672 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,672 Lima, Peru	Quote: Quote: Quote: The main reason they use a check ball is to have the right size to open them and when you let off the throttle the check ball lifts and makes the opening larger so they close fast enough. If they just had the hole the size for opening the secondaries without the check ball they would not close fast enough. If you leave the check ball out you will have a larger port which should open them real fast and close like they should. As far as I have heard the check ball is there to lift off the gas and make the port larger so they close fast enough. Its gives the right size to open them and then gives the larger size when closing to bleed off the vacum fast enough. Ron That is right! Now the question is: do you think my engine will bog from too fast opening rate??? 528 HEMI 10,5:1 compression solid roller cam Intake- [Email]248@.050[/Email] & .604lift >Exhaust- [Email]254@.050[/Email] & .591lift >Lobe sep is 114 >lobe #`s: 4875B/4876B sn#-A6105 CNC ported heads flowing over 430 cfm intake 250 cfm exh 2,25" headers stage V duial inline intake with dual 4160 750 holleys Only way to find out is the run it , if it bogs change the springs . yepper....will do that. Mopar Muscle article has the check balls withj the yellow spring. Ill try the red spring without the balls and go from there....

Re: 4160 Holleys missing check ball on the Vac Secs: HEMI [Re: JohnRR] #1382513 02/07/13 03:13 PM 02/07/13 03:13 PM
Joined: Dec 2003 Posts: 531 USA 5 540DUSTER mopar
540DUSTER mopar 5 Joined: Dec 2003 Posts: 531 USA	Back in the old school days,we used to block off the kill bleed leading to the secondaries and increase the hole to the pri.To get rid of the bog we used big pump shot like .050" with 50cc pump diapham.Could get a vac. 750 carb to run within 5/100ths of a double pumper.We kept the ball in the mix.In the first direct connection books they outlined how to do this to vac. carbs.

Re: 4160 Holleys missing check ball on the Vac Secs: HEMI [Re: domingo] #1382514 02/07/13 08:41 PM 02/07/13 08:41 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Quote: Quote: Quote: Quote: The main reason they use a check ball is to have the right size to open them and when you let off the throttle the check ball lifts and makes the opening larger so they close fast enough. If they just had the hole the size for opening the secondaries without the check ball they would not close fast enough. If you leave the check ball out you will have a larger port which should open them real fast and close like they should. As far as I have heard the check ball is there to lift off the gas and make the port larger so they close fast enough. Its gives the right size to open them and then gives the larger size when closing to bleed off the vacum fast enough. Ron That is right! Now the question is: do you think my engine will bog from too fast opening rate??? 528 HEMI 10,5:1 compression solid roller cam Intake- [Email]248@.050[/Email] & .604lift >Exhaust- [Email]254@.050[/Email] & .591lift >Lobe sep is 114 >lobe #`s: 4875B/4876B sn#-A6105 CNC ported heads flowing over 430 cfm intake 250 cfm exh 2,25" headers stage V duial inline intake with dual 4160 750 holleys Only way to find out is the run it , if it bogs change the springs . yepper....will do that. Mopar Muscle article has the check balls withj the yellow spring. Ill try the red spring without the balls and go from there.... You wont have any balls !!!! All kidding aside I agree you will have to try it and see how it works. Good luck , Ron

Re: 4160 Holleys missing check ball on the Vac Secs: HEMI [Re: 383man] #1382515 02/07/13 09:34 PM 02/07/13 09:34 PM
Joined: Jan 2003 Posts: 9,672 Lima, Peru domingo OP EL Master
domingo OP EL Master Joined: Jan 2003 Posts: 9,672 Lima, Peru	LOL!!

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