16 replies to this topic

[new_zealand _minis]

hey . having trouble tuning my eaton 45 1293cc ...

i am running a bca needle with 2.5 turns out on mixture .... its runs ok studders abit gets up and going and goes ok .. i have an afr gauge it shows around 11.5 and 13 on boost

at idle is showing around 12-14 . but after you go for a run and try to stop it wont idel . just stalls .. i have checked the fuel pressure is set at 3.5 psi and it still does it


i have no option over here in nz as no one close by has a rolling road ,and or there is no one with good enough knowlage to profile a needle for me . they are all jappa shops that have the rollling roads



my question is can anyone point out to me a better needle to start ?? i can do a bit of profiling ...

after looking on minty lamb .. i have seen the bdk is leaner through the whole range maby this will be better and maby profile it a bit on top end to make it richer on boost ???

[Gr4h4m]

Whats the fuel like on overrun. Is it sucking too much fuel and flooding?

[new_zealand _minis]

no it does not flood . . i have made the mixture richer today made 1.5 turns out and you can come up to a stop sign and it idels now etc. but it does not have as much top end power etc . i bet it will be worse on gas now aswell

[shellspeed]

I've got the needle off my 1293 if you want it. I've swaped to a webber so its nolonger needed. It was set up on the rollers at vmax with a stage 3 head and a 276 cam. PM me you're address and i'll sent it out to you

[new_zealand _minis]

that will be great .. im in new zealand .. but will still be keen on it ..will pay for post etc

[shellspeed]

Sent buddy, no idea how long it will take though. Good luck

Edited by shellspeed, 19 July 2011 - 05:08 PM.

[joe90]

What spring are you running?
You need a 12oz spring to help the dashpot from rising to quickly. That will most probably sort out the studder too
Did on mine anyway;)

[new_zealand _minis]

car is away getting certed for its mods ..

preety sure its a red . which is 4oz

will try diffrent spring as i have a selction in my parts department

.and wait and see if the needle that i have been kindly given will do the job ...

[joe90]

Try differant spings with the same needle, you will notice it straight away when you drive it good or bad (will need small tweeks on mixture each time).
I tried 3 needles, each time with 4oz, 8oz, 12oz & found the one that worked for me.
Think i ended up with bca neddle 12oz spring
1293, 276 cam, 8.3.1 comp, standard valves with worked head
Hope this helps
Joe

[Turbo Phil]

You can try some heavier oil in the dashpot, this can have a marked affect.

[new_zealand _minis]

very good . just the info i am needing ..

ive just got my car back today ..

ive got the bca with a 4oz spring , and the su oil in the little bottle

will put diffrent spring in it tomorow .. and see what happens ...

joe 90 how many turns out on mixture are you running with the bca and 12oz spring ???


what advance shuld i be running at idel... ive just got a na austin metro dizzy and i think ill have to nock it back as its pinking under load

Edited by new_zealand _minis, 22 July 2011 - 09:30 AM.

[HUBBA.HUBBA]

Have you had any joy?I'm having fun and games too!

[HUBBA.HUBBA]

I've got the needle off my 1293 if you want it. I've swaped to a webber so its nolonger needed. It was set up on the rollers at vmax with a stage 3 head and a 276 cam. PM me you're address and i'll sent it out to you

Hi, How's the webber set up running?

[shellspeed]

I've got the needle off my 1293 if you want it. I've swaped to a webber so its nolonger needed. It was set up on the rollers at vmax with a stage 3 head and a 276 cam. PM me you're address and i'll sent it out to you

Hi, How's the webber set up running?

It runs pretty sweet. Changing to some larger mains and then its off to the rolling road to see what differance it makes. I'll keep you posted.

[HUBBA.HUBBA]

I've got the needle off my 1293 if you want it. I've swaped to a webber so its nolonger needed. It was set up on the rollers at vmax with a stage 3 head and a 276 cam. PM me you're address and i'll sent it out to you

Hi, How's the webber set up running?

It runs pretty sweet. Changing to some larger mains and then its off to the rolling road to see what differance it makes. I'll keep you posted.

I'dbe really interested in the results, as it's always been my plan to end with a webber set up.