1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Nikki on 6port 13b?

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Old 05-17-05, 02:03 AM
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Nikki on 6port 13b?

Since i'm swapping around a lot of parts between my two Rx7s that both have 6 port 13bs. i may have to steal some precious EGI items off one of them. however i have 3 spare Nikki carbs, pumps, filters, lines, etc.

i've heard of adapters for the intake manifold to do this, or ways to modify them, but no explanation of how to do so...

i will be keeping one of the Rx's EFI, but i'm also not willing to blow a grand + on a weber or similar setup for the other if i go carbed.

is the Nikki on the 13b possible? if so whats required?
Old 05-17-05, 02:16 AM
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Nikki

don't think the Nikki has enought cfm to make any hp on the 13b 6 port. You are better off finding a used Mikuni 44phh out there and buying racing beats maniflod for $130.00.
You can usually find a good 44phh for around $350.00. I believe that rebello racing sells used ones for that price. And you will make alot more Hp with a mikuni than you will with a nikki

Last edited by Rx-7Doctor; 05-17-05 at 02:20 AM.
Old 05-17-05, 02:21 AM
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Mikuni

Try this link. www.rebelloracing.com
Old 05-17-05, 07:47 PM
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so the nikki will work?

i'm not trying to make power, i'm trying to get one less paper weight off my driveway and back on the streets

i need a bunch of EFI parts off one of my 13b cars and would rather just swap over a nikki than buy a entirely new setup...

Last edited by Paradox; 05-17-05 at 07:50 PM.
Old 05-17-05, 08:04 PM
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i'd think to run a nikki u'd have to modify a old 70's 13B 4 port hitachi intake so that its got openings big enough for a 6 port... then put that nikki on top of it... but i'm not sure theres enough meet to open the ports on a 4 port 13B manifold to the size of a 6 port's 2 ports
Old 05-17-05, 08:14 PM
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http://cgi.ebay.com/ebaymotors/ws/eB...sPageName=WDVW
Old 05-17-05, 08:27 PM
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Primary Ports are larger on a Stock 12A than a Stock 4 or 6 Port 13B. The nikki will work well enough.
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