DaveRS

hi ppl. not so long ago i sold my 1990 2wd saph cossie. had a dump valve on when i bought it but took it off as i prefered the sound of the chattering. got a 1990 S2 now. also fitted with dump valve. took it off the other day but i dont get the chattering that the cossie used to have. why is this and is there anyway to make it chatter? any help would be much appreciated

DaveRS

sufsRS

i have an s2 and mine chatters all the way!!!! and thats wiv a standard air box!!! dnt fink theirs a way of "making" it chatter????

james_birch

its cus of the ke-jetronic!

dont know exactly why but efi chatters like fook! an mfi..genrally dont chatter unless u running a shed load of boo0st and it still wont sound like efi!

so either get efi conversion! which is expensive just for some chatter! or get used to it just doin a little bit of chatter! get a big cone filter on that will help!

mattbibs

yeah mfi sucks for chatter!!

sufsRS

wird mine is totally standard!!!!! and it chatters!!! could be me hearing fings

Stratos RS

i thought the Metering head is the only reason a MFI doesn't chatter as it obstructs the airflow from the turbo?

Mines running EFI and F#ck me does it chatter

Rallyesport

You will not hear any sound from the wastegate. When the pressure builds up after you have shut the throttle, the air will escape through the compressor of the turbo and will make the chattering sound. The sensor plate in the the KE-Jetronic unit will slam shut because of this pressure and will dampen the sound.

rsnitrouskev

mine chatters wiv a stg 2 hybrid and 18 psi of boost

stevos1

how much does a efi conversion cost?

Rallyesport

No where near like on an EFI engine. I tried without dump and 16 psi. Boring sound compared to an EFI engine.

DaveRS

ok. cheers peeps. hafta sell it and getta FRST! lol

mattbibs

dont be crazy!!

CabrioTurbo

anyone who has a stadard RST and gets chatter needs a new meetering head! The reason an MFi car wont chatter is as is said above that the metering flap is shutt hence the noise is almost un-audible... if you can hear a significant ammount of chatter then you meetering flap is not shutting propperly and hence the meetering head needs an overhaul.

rsnitrouskev

mines been overhauled and calibrated

Puss2

iTrader: (5)

around about a grand for the lot

RS2000_Daz

better off going cossie management for that price
I find you can hear the chatter more at higher speeds probably due to more boost pressure?

Puss2

iTrader: (5)

yeah cossie manage is wat i meant

1.9 xr2 on 40's

i have full frst managment for sale if ne1 wanst to go efi, jeez didd my series 2 chatter

love it

powerRSturbo

can any one tell me how much it will cost to tune my standard rst to 210bhp+ and what needs to be done to get there any reply i would be greatfull cheers.