another rolling road.
Turbo Mini Forums

Just been for another tune up, very good job i had.

the car had been running very badly not much go and wouldn't tick over right.

It was because the Mixture had gone way out. It was 2. some % at tick over which as you no isn't good as it's normaly double that.

Good job i didn't race any thing on the way home from retro day as one might have melted some thing.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Is it all OK now then?

yes mate all seems ok now back in the 200s again.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

Not being funny, but how did the mixture 'go way out'? and what was changed to rectify it?

Wil

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

Good Call Wil,
Something has happened for that to occur...

Never had any problems with mixture changing that much without an issue / cause seperate to the mixture screw...

I'd be interested to know what happend too!
What power did it put out then? (and what ATW?)

I'd be interested too :)

Alex

AlexF

id be interested three :)




*gets coat*

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

I'd be interested in five

(and maths lessons!)

Team Racing

To be honest chaps I'd be very interested too as it costs me money every tune up and it's almost once a month at times:(

Every year after the normal rebuilds at the start of the year the car always goes out of tune fast. and as the year goes on it's goes out less!??

It does pee me off as i can't always get into the RR for a check up for 2 weeks or so, there for i'm with out a good running car untill i can get in, and this often means missing out on the odd race

I do notice it goes out of tune after a hard drive with 20psi, no idea why. I go to the local RS meets and the day after it could well be out.

I do get major engine wear as you have see from the pics posted in the past and this is what i put the going out of tune down to, weather this is right or not, i really don't know.

Altrezia , It made this time 177.3 at wheels.

If any one has any ideas on why it goes out so much let me know.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

That's mad...

Is it always the fuel, ignition or both?

That is alot of poke!

By "race" do you mean driving way too fast on the public highway endangering yourself,passengers and other road users?

To many emergency starts me thinks!

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

boy racer williams!

Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
Previous engine: STD metro turbo, megajolt
Drives: 399bananahp (flywheel) Honda Civic Vtec b18c4 T28 Turbo 1968 Mini

Megajolt maps to download: http://www.jamesfawcett.co.uk/cms/index.ph...&gid=3&Itemid=3

willie still has trouble keeping up with the hogmeister well till 40 any way then there is this blue flash which jets past like f4 phantom on afterbuner lol.

havnt got a scoobies why she goes out of tune,

especially on the fuel side i can understand it if the timing went out as the chain wears ect.

by the way whats the flywheel hp you cheeky boy lol.

always looking for them bigger bunches of bannanas

LOL Hogster! I'll gewt you one day below 40, don't know how though!
The flywheel figure was nicerly over 200 mate

Any way chap has any one any realy ideas why it goes out so FAST!

Could the mixture screw be moving, (i wouldn't think so but...)

So any thoughts????????

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

my engine used to go way out quickly becuase the movement in the engine was causing the carb jet to hit the bulkhead whenever you floored it, this is because of the alloy inlet moving it right back, the position of the carb meant the jet was an inch or less form the bulkhead
that was an hs4 so the jet is protruding quite far, but perhaps the same thing could happen with an hif? especially in such a cramped space.
have a look for any marks behind the carb on the bulkhead. i know it has an internal jet but the same could happen.
just a thought...
DAN :)

Edited by clubman_dan on 10th Jul, 2004.

Nice power!

I'm thinking it's not the carb that the problem.

Picture the bottom half of the needle - how much does it change in diameter over a 10mm length? F**k all... So, moving the heedle up and down a couple of mm won't be makign the difference...

I'd be looking at my fuel supply system. I bet if you got the spec sheet from whoever sells these regulators, they are rated at 1.5bar of boost or therabouts...
Either way, your existing regulator has had years of abuse (in a nice way!) - so the diaphram is probably pretty stretched...
I'd be lookign at a BRAND NEW (yes NEW) regulator in the first case... They do stretch - mark has had experience of this.

I know they're expensive, but it's gotta be worth a go...

Edited by turbodave16v on 10th Jul, 2004.

Hi clubman_dan cheers for that, i've just check and it doesn't hit on mine, but i take your point it was worth looking into:)

HI TD

Yes i like what your saying, as like you say years of use, and i've never changed it!

Nice one mate

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com