Sprint Pogress (update 20 July 2010)
Turbo Mini Forums

For sure a quick build !
Wil, did you check the wastegate opens with the exhaust installed ? I had to make a wider connection.
Is that a 1300 head ? Did you pocket the engine ?

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

Looking good Wil!
Plastic cars are the way ahead! Just wish mine was 'going ahead' as quickly as yours is

head is a worked 295.

I made a 10mm spacer to ensure the wastgate opens.

I have now driven the car, only making 2psi at the moment but goes nicely. Off to toss around with needles now.

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

www.twin-turbo.co.uk

The two g295 I bought in US were green. From Austin Healey. So originally it's red ?

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

hummm, blown a head gasket. I couldn't stop pinking on any boost. Found a few things wrong with fuelling, but just seams to lean off to 18:1 AFR on boost. Needle looks thin already.

Even tried the t-piece trick.

New head gasket already on, going to try a massively adjusting mixture with the screw just to confirm it's all working an just needs the needle profiling.

I'v also binned the MBC which also caused problems on the TT and put a standard bleed valve in. 2psi on the gauge seems low too, but gauge seems to work ok when pumped up.

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

www.twin-turbo.co.uk

Blown head gasket, pinking and 2psi boost. Does that add up?

MBC caused problems on our van - 20psi+ no matter what you do

Not at all, boost gauge seems to work ok, all plumbed in right. I have a few tests to do with the fuelling, anf if tat makes no differance then I'll try a different carb.

something is amis, just not sure what yet, can't be too hard to find.

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

www.twin-turbo.co.uk

Im sure you'll figure this out wil

bummer :(

do you have megajolt on it yet? you could use that to confirm the boost.

definatly sounds like its worth swapping the carb though

Right well after lots of tossing around it is now all up and running as it should be, just needs setting up now. I've been struggling since I got it going with variable boost levels, sometimes 15psi plus, sometimes no more than 5psi.

Today I change the actuator, and hey presto consistant boost. the actuator was new and seemed ok when tested independantly, but was sticking, it's in the bin now.

Some photos

Sexy new front (daft camera angle)


New exhaust and stickers on the rear (thanks Jimster)


Nice shine red rocker cover new bonet prop!

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

www.twin-turbo.co.uk

What boost are you running then?

If something is worth doing, it's worth doing half of.

i like good work, :)

Yes i moved to the darkside

Instagram @jdm_brett

nice vinyl graphics,

Team www.sheepspeed.com Racing

Well it's currently running around 9psi, but I plan to run 12. Was bloody fast with the wastegate stuck shut!!!

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

www.twin-turbo.co.uk

I'm sorry, but it still looks like a MK 3 escort.

looks good mate, be nice to see it out and about.

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

Did you paint the head in that colour to feel like it's alloy when you open your bonnet ?

Rusty by nature

Its grey, Wil paints all his engines grey

Yep, all my engines are grey. Saves people arguing about which colour is fastest. I can say without a doubt that the fastest 998 engines are all grey!

I have now tossed around wit hthe fuelling, but can't get it to richen up enough at higher boost. 5psi is fine but 10psi it leans out.

After reading Tels guide I have ordered a BCA (Avonbar high boost) and an 8 oz spring. I know it won't be right, but it should be a good baceline as the BDD was way out once boost get going.

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

www.twin-turbo.co.uk

does the boost control work now ?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Yes, I robbed the MBC of the green mini and it works a treat so didn't need to fit a restrictor.

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

www.twin-turbo.co.uk

looks awesome very nice work, looks v nice from the front but the rears a bit ugly the vinyl makes up for the bumper tho where did you get your silicone from i cant seam to come across any particularly cheep suppliers. or am i just be a tight fisted twat again?