sen2two

is there a way to run a distributor set up on a 20b? if so.....HOW!?



im looking to go carb and have as little wires as possible. simplicity is the way...



havnt heard anything about this...but that dosnt mean it cant be done.

hsmidy

yeah man hit up racing beat they have a dizzy setup for them, failing that get a clued up autosparky to nmake ya one

Clarks7

Racing beat has a 20b distributor ($440). I am thinking the same thing about switching to a carb on my 20b. I have spoken to Racing Beat, MazdaTrix, and Atkins. I have not yet found anyone who has just done a carb without a supercharger. I asked about a sidedraft setup and this was their response,

"Your question was forwarded to Jim Mederer, Racing Beat's co-founder and chief engineer, for review. The following is his reply to your inquiry:



I have never attempted to use a Holley carb on a 20B - only 12A's and 13B's.



Jim Mederer





-----Original Message-----

From: Clark Burke at Dillard Elementary [mailto:CBurke@egusd.net]

Sent: Wednesday, August 29, 2007 9:38 AM

To: Jim Langer

Subject: RE: 20b side draft carb?





What about a Holley without the supercharger?



Thank you again for your time!



Clark Burke

Principal

C.W. Dillard Elementary School

(916) 687-6121

fax (916}) 687-8183



--------------------------------------------------------------------------------



From: Jim Langer [mailto:jlanger@racingbeat.com]

Sent: Wednesday, August 29, 2007 8:22 AM

To: Clark Burke at Dillard Elementary

Subject: 20b side draft carb?





Your question was forwarded to Jim Mederer, Racing Beat's co-founder and chief engineer, for review. The following is his reply to your inquiry:



No, although I have started such a manifold. Unfortunately, the width of the carbs (Weber 45 DCOE) was such that it would have been necessary to stagger the carbs high-low-high, and the related jet access and throttle linkage problems made the result diffficult, and I never completed the manifold.



Jim Mederer

-----Original Message-----

From: Clark Burke at Dillard Elementary [mailto:CBurke@egusd.net]

Sent: Tuesday, August 28, 2007 11:15 AM

To: jlanger@racingbeat.com

Subject: 20b side draft carb?

Good Day,

I was curious if you have ever fabricated a side draft carb setup or manifold for a 20b?

Thank you,



Clark Burke

Principal

C.W. Dillard Elementary School

(916) 687-6121

fax (916}) 687-8183"





I would be interested if you are designing or looking to add the carb... It doesn't seem that difficult, just no one has followed through yet... that I know of.

sen2two

thanks man! do i have to order the catalog? cause i couldnt find it on their web site.



im really trying to go the cheapest and most simple route. a "budget" 20b into an FC. if there is such a thing...



stock 20b with header and stock ECU. should be fine for a daily driver. i figure swapping to a distributor is cheaper and easier than using 6 MSD coils or 3 dual tower coils. and looks cleaner in my opinion anyway...



have any experience with this? tips???

hsmidy

lol budget 20b=expensive 13b, nar but good on ya, i dont have a any personal experiance with this setup but id highly recommend going electronic ignition(cant remember if RB dizzy is or not) and dont skimp out when it comes to ya extarctors theres alot to be had from a well tuned exhaust in an n/a

sen2two

the word budget was loosely used...



im still looking at 6 grand. but thats about 4 grand less than other 20b swaps i seen...

Clarks7

Type in "11603" in the part number search on the RB website. The advantage is you will not have to spend the time or money tuning the ECU, but the disadvantage is apparent switching from an electronic distributor to a mechanical... but it does simplify things if that is your goal.

sen2two

thanks for the part #!



have you installed one of these? what do they mean by "The kit does require a moderate level of fabrication ability, including welding skills"? what needs to be done to fit this? and what is CDI ignition? it says i need that also.

Clarks7

The unit attaches to a 12a distributor. I just recieved mine, I will look more closely at it tonight and get back to you tomorrow. It does come with detailed instructions and all required parts (minus the 12a distributor of course).



Here is a pic of it installed on one of the Atkins Supercharged motors.

Clarks7

Okay, here is the deal. It all depends on your setup for how much you have to fabricate. If you use the 20b water pump you have to modify the alternator adjustment bracket (the RB instructions have a template for this) for distributor clearance (or you could use a water pump from a 13b, but they warn cavitation of the 13b waterpump over 7000rpm and you would have to change your pulley ratio)... if you can weld, the modified alternator bracket doesn't look difficult... If you use a 13b water pump there are some other block off plates you need to build... again, easier to use the 20b pump. but all the instructions and templates are in the RB instructions for using either setup. That is the short jest for mounting the system. You will also have to change the factory 12a ignitors to (they are not powerful or reliable enough) for something like an MSD setup (it makes sense).



If you are anybit handy, RB has step by step instructions. If you are concerned about it, they will to the labor for you for approx an extra $140.



Hope that was descriptive enough.