Bogging down under full throttle
Turbo Mini Forums

Chaps, dragged the tangerine out today and took it for a wash. One thing is it bogs down from low revs, I have to rev the engine to get it rolling. I also can't really dump the throttle from these revs as its stutters to fuck. It's always been like this and just assumed it was the cam as its a morspeed track cam, similar to a phase 3 cam. If that's how it is I can live with it, however am I missing something? Is it my carb spring? Or could I change my timing lower down?

Thanks

Mike

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

what does the AFR do when it boggs down?

does it feel like a miss? or just flat.

pop a screen shot of the ign map up?

Yeah the afrs are lean at tick over and its more like a miss I had a little play with idle mixture but didn't go crazy. Does anyone have John and Andys van map? It's the same one.

At

Mike

Edited by MikeRace on 5th Feb, 2013.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

worth shutting up the plugs a bit too,

if the maps one of these its deffo worth trying a bit of advance in that area

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=430430

Fresh fuel?

No but like I said its always been that way, yeah ill try some more advance down the bottom how do you mean shutting up the plugs joe,

Thanks for the input

Mike

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

dash pot oil

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Yep, 3-1 oil, not sure what spring it is mind.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

3in 1!! get some 20/50 in there!

plug gaps, tap the plug electrode to shut it up a bit, try 20 thou gap. although to be honest wide plug gaps normally show up on boost first.

Edited by Joe C on 5th Feb, 2013.

This I will try.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

Don't use the vans map. It's very aggressive of boost. Doesn't suit a lot of engines.

I used to use single grade gearbox oil (80w or something daft) on the TT whe it had a carb.

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

It's also got a lot of advance in low boost area's, think we were lucky not run into det with it. Good reason for using an RR with det cans

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

ill go with the dashpot oil,
20-50 is good, perfect for the road imo

vans map made mine det like hell 1500-2500 accelerating part throttle

Edited by Brett on 6th Feb, 2013.

Yes i moved to the darkside

Instagram @jdm_brett

Sound lads, ill pop some proper oil in and have a butchers at the map tonight. Ive also got a power leak somewhere, i soooo need a new loom. Time for a custom one i think...

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

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

The chaps on that rolling road day said it was detting it's tits of at low rpm. that's why it didn't get a big power figure....

Interesting! JS must need new headphones!

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

Indeed. I told them I didn't care and to thrash the tits of it anyway, but they where having none of it. The bastards.

Det on mine was very audiable even more so with my detcans 28 cc with beak 8.25ish cr
Mine and benny spec was closest and we ran exactly the same map iirc the gt20 is chomping at the bit at part throttle 22-27%throttle sees me into boost at maybe 2krpm
You can feather this back to keep the boost off but this is where mine was detting most

Yes i moved to the darkside

Instagram @jdm_brett