Carb needle for 998 turbo
Turbo Mini Forums

hey need some help, im moving country and wana get my car running before i leave,i wanted to know what needles people are using in there 998T, i have a standard metro turbo needle BDD an a needle out of n/a hiff44, im engine specs are..

998 A-series block bored 40thou
also block has been decked an water and oil gallerys drilled
pistons are racing pistons of some brand with a+ rod bolts
crank has been gound .010/.010
running a RE13T cam
bigger oil pump off 1275
lightend fly wheel
duplex timing gears and chain
cooper 12g295 head with isky double valve springs
motor has been balanced an blue printed
my cr is 8:5.1
running a intercooler with custom piping, oil cooler
extrnal wastegate, bov
have a t2 air research turbo of a 1985 nissan pulsar
sitting on a custom made manifold over clutch bell housing,
im also using a standard mini dizzy with electronic igniton system, with a msd boost retard setup
custom made alloy radiator

i think ive missed a few things but this is what my setup, what are your thoughts in what i could use to get it running enuff to drive and tune up, time is very very limited .....
have been working on this car for ova 18months now and has cost me an arm an a leg to build up any help would be great.
cheers

1966 MK1 1034CC TURBO MINI

i forgot to mention im using a metro turbo carb with metro turbo carb box thats been moded to suit.

1966 MK1 1034CC TURBO MINI

I read in the 998 section that its a good start point with the BDD needle.

one day boost will be mine!

With that spec I'd try a BCA as a starting point.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

BCA, ok cos i do not no any thing about carb needles whats this mean? i hope i can get one in new zealand ?

1966 MK1 1034CC TURBO MINI

BCA is the identifier for the needle.

If you can't get it out there:

http://www.minispares.com/Product.aspx?ty=...id=36134&title=

or avonbar.

http://www.avonbar.com/prodMain.aspx?range...Id=188&makeId=0

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

ok swt is there any others around that i could try ? im trying not to set this up on a dyno i just dont have the time or money to do it. ( stupid i no) but when your moving country and cant take the car with you makes it a lil hard.

the other thing id like to know is what sort a max boost can i use on this, i see people putting 12 and 14 psi threw theres and i have been told not to go higher than 10psi ?

what sort of power should an engine spec like this make ?

1966 MK1 1034CC TURBO MINI

what i should have said is which is next in the range above and below the BCA because if i buy a few and try them all out might help ?

1966 MK1 1034CC TURBO MINI

You'll easily run 12psi, at 8.5:1 CR you could run more. 12psi generally gets you between 110 and 120 bananas.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

so your saying thats a safe boost to run at, ive got a couple of wastegate springs to play with a 5,6 and 7 psi springs, also i have a boost tap, but just dont wana blow it up. 110 - 120 this is bhp at the fly wheel ?

1966 MK1 1034CC TURBO MINI

I run 12psi on a similar setup with 9.4:1CR, no problem, others running similar boost/CR on 998s too.

I run 15psi on 8.5:1 and plan to run up to 20psi.

yes, 110-120 flywheel bhp.

The biggest killer will be the diff, what do you run?

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

o ok, yea kinda my weak point really didnt have the coin to buy a lsd or any thing flash, ive just got an uprated comp diffpin, the gearbox has been fully rebuilt to match, i duno how long the diff will last with it like that.

if i had a spare $3500NZD i could have had myself a jack knight dogbox ... but no money at the time,

1966 MK1 1034CC TURBO MINI

I didn't realise there was so many different needles, I run a bca needle in mine

If in doubt... flat out! The words of a true legend

The Minispares crosspin diff is good for more power than you'll ever need, good value too.

A hardened pin will survive at 12psi power, but will ultimately wear. Some on here have used them, maybe worth a question for more advice as it's not something I have direct experience of

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

o ok yea, well seeing im not going to be driving it all the time now, probly maybe once or twice a year, it should be ok, my old man said he would drive it round the block to keep it running, lol

1966 MK1 1034CC TURBO MINI