82 rx7 with a agro bridgey

hi,im new to this forum and find it great!! i have recently bought a canary yellow series 2 with a 12a bridgeport..now,having never owned a bridgey b4 i havwe a question...my motor has around 12,000kms on it according to the pile of reciphts i got with the car...runns real strong..but idles at around 1800rpm!!! now i know bridgeys idle high but this high?? a good rotary shop here built the engine in august 2004 but have since relocated to another city so that rules out stopping by to see them. the recipht 4 the motor rebuild says : extend primary bridge" anyway..thats my question/worry..oh and the dizzy is fully advanced,this normal 4 a bridgey?? also theres no longer any vaccum lines hooked up to the vaccum advances..doesnt bother it..motor is completly de emmisioned. hey thanks 4 any help you guys can give me. regards mike

82 rx7 with a agro bridgey

hey i just posted a thread..please reply fast!!

rxtasy3

iTrader: (2)

i've never had a BP but i don't think they'll idle below about 1500.

FIBREMAZ

my old bridgie (13B) idled at around 1750rpm. Quite often you ned a reasonably high idle to keep the plugs from fouling.

old_skool

its normal. mine idles around 1800. hows your low-end powerband?

Terrh

iTrader: (7)

my (halfbridge only) 13b idles at 1500.

trochoid

iTrader: (6)

You've said nothing about your carb set up, that can make a difference. My 1/2bp-1/2sp can idle as low as 800 rpm, barely. My bp is not extended and in the secondary ports, I usually run mine 12-1300 rpm.

GoodfellaFD3S

iTrader: (213)

.

BridgePorted12A

iTrader: (6)

Ya, logged in on my brother's account again^

My 1/2 BP likes to idle @ around 1500-1700 rpm w/ the overly sized carb that the idiot of an owner put on before me.

Ryan

blwfly

iTrader: (4)

what kinda carbs are you guys running im sure that has alot to do with it

FIBREMAZ

50mm throttle bodies

blwfly

iTrader: (4)

im guessing thats efi^^^^ you bein a yobbo n all

FIBREMAZ

you would be correct. Is that what the Yanks are calling Aussies these days?

gerbraldy

we prefer to be called stupid fat americans instead of Yanks

old_skool

touche on the fat american comment! back on topic though, im running a stupid big holley 650 double pumpin piece of crap

blwfly

iTrader: (4)

[QUOTE=13 BEEF]you would be correct. Is that what the Yanks are calling Aussies these days? [/QUO


lol no thats what we kiwis have been calling you for years
nope i bet honkeys have never heard of it

82 rx7 with a agro bridgey

yea im running just a rebuilt stock nikki..guess its been jetted for the bridgey....so you reckon with that high idle its not a half bridgey?? hey and sometimes wen sitting at lights etc..itl stop going brap brap brapand sound like an extend port and drop its revs to around 1500..u just give it a tiny tap on the gas and its brap brap braping again..im a virgin to bridgeys so any help would be great..motor runns great..loads of oil pressure..starts well hot or cold..oh yea and and the 2 vacuum advance diaprams arnt running hoses to antwhere anymore so im thinking its been converted to mech secondarys????? should my timing be fully advanced like it is???? its a 12a bridgey by the way.

DriveFast7

iTrader: (1)

My 12a J-bridge idles @1800.

You want a bridge to have a nice solid lope at idle. When I lowered the idle rpm's it studdered and hiccuped.

Your timing greatly depends on what material apex seals, size of ports, and intake system. Dynotune to be sure. Ceramics like more timing. Mine is set to 27.5* total advance on the leading, no vacuum advance. centrifugal only.

trochoid

iTrader: (6)

I don't know who mods the Nikkis down under for a bridgey, but it does take a bit of work. How smooth does the car run under under 3k at steady state cruising, is it smooth, herky/jerky? My 1/2 bridge is gutless under 3k and jerky under 2.5k when trying to cruise. At 4k the power starts showing, at 5k it rips. I'm running a Mikuni.

BridgePorted12A

iTrader: (6)

I am about to put this 600 on my 1/2 BP motor

http://www.holley.com/0-80457S.asp

Ryan