Red Top Rb20 Woes

[bubbabooga]

hey all

iv just brought myself a hr31 for dirt cheap and its interior and body is mint condition...

its got the stock red top rb20 in it..

i got it so cheap cuz motor aint running.. the guy i brought it from said he brought it not running and has not even looked at fixing it...

is their any comon things to check??.

it has done genuine 200 thousand kays and is 100% completlly stock...

i know most basics like fuel pump and presure... all fuses. if its sparking... knkow how to trace most things..

but on the old red top is their any super comon problems that always f**k up on them??

i pick the car up tomoro night so ill get started on checking shit...

cheeers in advance

[R31Nismoid]

common problems are everything

they are old, and suffer from every sensor failure you can think of

CAS, AFM, Ignitor, connections on all wires etc etc etc

[nizmonut]

honestly dude . go for a silver top from a 89 to 97 r32, A31 or c33, much cheaper then keeping that museum piece on the road

[bubbabooga]

yeah the plan prob will be to dump a silver top in it.... but if the red top is still goona work i mind as welll use it....

its only goona be a daily.... i work early mornning so the heaters and the heated seats will work wonders...

im hoping i can get her to run .

il let yas know how i go...

is it a hard wiring conversion from the red top to silver top??

[bubbabooga]

giday again...

have been playing with the hr31.. has fuel presure and injectors are pulsing... has power to the coils but the coils are not firing..

i have swapped them over with my silvertop rb20 out of my cefiro and they still dont fire.. has brand new plugs in...

any one have any idea what could be causing this???

cheeeers yall

[_x_FiReStOrM_x_]

Check ignitor module... CAS will be fine if you're getting injector pulse.

[bubbabooga]

ignition module the box on the centre cam covers correct??

i just found their are two small wires that have been broken on he right side plug??

that possibly have somthing to do with it...

seriouslly fidgetty to gt my hands in their to reconect the wires tho....

??

[luke20t]

from memory i think the red top and silver top coils are different.

[bubbabooga]

okay its down to the coils.....

they have power going down the wire's to the coils... still wont fire...

my silver top coils were exactlly the same.... but still would not fire.... altho my silertop coils work fine in my rb20 cefiro....

im lost aye....

[Justa32]

use an eccs on it, red top head flows much better just get rid of the ecu and crappy turbo =], im using splitfire rb20 coils on my redtop with no problems

[bubbabooga]

it is a nics head i forgot to mention..

if it is only a few hundred dollar fix to keep using his motor for awhile i would like to fix it.. as i said car is 100 percent factory. so to keep factory motor would be nice,,

just want it for my daily as i have my cefy to pour money into...

plugs are brand new and coils are gettin power but still wont fire...

tried other coils that work fine on my other car.

still nothing...

what could it be.. f**kn hell aye

[bubbabooga]

anyone have any idea what it could be???

and how do i go about testing the ignitor module??

would silver top and nics red top ignitors be the same??

and one more thing, i hav brought this car from interstate unregistered, i have heard to get it registered in south aus i need to go threw and inspection to check engine numbers and that??

any one know the truths about that???

cheeers

[bubbabooga]

have found their to be 4 broken wires on the right side plug of my ignitor...

i am goona have to call a auto electrician to come see if he can replace the plug and re wire it...

[Wheezy]

Ignition module plugs between red top and silver top are different. They are not compatible unless you changed plugs. But once you changed it, kind of hard to go back. And adding another plug to interchange them is just another point of failure.

[Justa32]

m8 just stick an eccs head on it ul have a much better engine with better flow than the silvertop

[teng]

The redtop RB20 is turboed am i right? It's a very rare engine and i don't see it often as they aren't many HR31 here equiped with it. Only Saw only one at a wreckers shop. Looks in bad shape too.

Edited July 14, 2008 by teng

[bubbabooga]

yep thats the one..

turbo red top..

its one hundred percent stock as a rock.

i kinda want to keep it that way...

i have dodgily fixed the four broken wires on the right side of the ignitor and have it sparking out of the coils..

but still wont run..

possilby going to tow it to a mechainc and get leak down test and see if they can find anything wrong..

[B. J.]

Redtop's are not rare! f**k me drunk.

redtop DET-R's are rare, but thats a totally different ball-game.

NICS are not worth the money you spend on them ( I know, I used to have one!) For heavens sake, just keep the coilvalley cover and the cam covers and swap them over, no one will know.

if you want a realiability and power out of a good 20det just get a silvertop (ie R32 etc) the Redtop ECCS is good too but as mentioned the plugs and things are different, so hard to get parts for.