Holley on half BP, only one issue!

TS87FC3S · 05-08-2011, 07:59 PM

Ok so my intake has individual runner but i found this little issue

in red, the baseplate connects the primarys and secondarys which i cant have,

But i need to keep this

and this seperate

Any way i can do that without messing up how the carb functions?

rxtasy3 · 05-08-2011, 10:01 PM

those will not be an issue. if this was once on the car in ur sig(stock 12a), it's probably not going to work on a half bridge without some rejetting at least.

TS87FC3S · 05-08-2011, 10:04 PM

Quote:

Originally Posted by rxtasy3

those will not be an issue. if this was once on the car in ur sig(stock 12a), it's probably not going to work on a half bridge without some rejetting at least.

re-jetting i know will have to happen, not an issue, i just know on a half BP the primary and secondrys cannot connect to each other and this shows them connecting in a small manner but it is still present, just trying to figure out if this is going to affect idle quality or what

TS87FC3S · 05-09-2011, 12:07 PM

the hole in question is for the hot air choke blocking secondaries is no issue as long as primarys still go to it

rxtasy3 · 05-09-2011, 11:54 PM

check with sam(bad83) on rx7club. he's ran holleys on bp before.

fc3sfreak415 · 05-18-2011, 01:03 PM

i welded a spacer on my 12a factory mani and i love how it runs lol cheap but works

im running a 650cfm holley on my factory 12a with 167,000 original miles on it lmao still runs mint!

ArmyOfOne · 10-13-2011, 10:13 AM

I've never had an issue running those on a half bridge. If anything having that red port open slightly to all allows some movement of mixture from the primaries over into that runner. From what I see that is not a 4 corner idle carb so if it completely blocked off it will have a dead spot when the butterflies open because the runner will be completely empty.

05-08-2011, 07:59 PM	#1
TS87FC3S Ask Me About My WANKEL!!! Join Date: Jan 2010 Location: Missouri Posts: 127 Rep Power: 16	Holley on half BP, only one issue! Ok so my intake has individual runner but i found this little issue in red, the baseplate connects the primarys and secondarys which i cant have, But i need to keep this and this seperate Any way i can do that without messing up how the carb functions? __________________ 1984 Rx7 Gs - stripped interior re speed coil overs, tokico blues, re speed crossmemeber and mustang rack, diamond star racing wheels 1988 Rx7 Se - Sold 1988 Rx7 GXL - Sold

05-09-2011, 12:07 PM	#4
TS87FC3S Ask Me About My WANKEL!!! Join Date: Jan 2010 Location: Missouri Posts: 127 Rep Power: 16	the hole in question is for the hot air choke blocking secondaries is no issue as long as primarys still go to it __________________ 1984 Rx7 Gs - stripped interior re speed coil overs, tokico blues, re speed crossmemeber and mustang rack, diamond star racing wheels 1988 Rx7 Se - Sold 1988 Rx7 GXL - Sold Last edited by TS87FC3S; 05-09-2011 at 08:53 PM.

05-08-2011, 10:01 PM	#2
rxtasy3 rotary madness Join Date: Apr 2010 Location: spartanburg, sc Posts: 78 Rep Power: 16	those will not be an issue. if this was once on the car in ur sig(stock 12a), it's probably not going to work on a half bridge without some rejetting at least.

05-09-2011, 11:54 PM	#5
rxtasy3 rotary madness Join Date: Apr 2010 Location: spartanburg, sc Posts: 78 Rep Power: 16	check with sam(bad83) on rx7club. he's ran holleys on bp before.

05-18-2011, 01:03 PM	#6
fc3sfreak415 Wankel Works Join Date: May 2011 Location: Boston, MA Posts: 35 Rep Power: 0	i welded a spacer on my 12a factory mani and i love how it runs lol cheap but works im running a 650cfm holley on my factory 12a with 167,000 original miles on it lmao still runs mint!

10-13-2011, 10:13 AM	#7
ArmyOfOne The Newbie Join Date: Oct 2011 Posts: 4 Rep Power: 0	I've never had an issue running those on a half bridge. If anything having that red port open slightly to all allows some movement of mixture from the primaries over into that runner. From what I see that is not a 4 corner idle carb so if it completely blocked off it will have a dead spot when the butterflies open because the runner will be completely empty.