Boosting problem hellpppppp!!!

1988typer · November 25, 2012, 01:20:04 PM

Have a t66 single turbo setup 1500cc injectors apexi ecu...

Major boosting problem. Every time the car boosts and pressure builds up it hesitates cutting boost on and off viciously??!!

Anyone have any idea where i start

m1tch · November 25, 2012, 02:42:24 PM

Sounds like a fuel or ignition cut to me? Might be best to put up the specs, im guessing you are using a 3 bar MAP sensor etc?

1988typer · November 25, 2012, 11:00:08 PM

I have no idea about map sensor etc. i didnt build the car i brought it how it is.

This all i know

1500cc injectors, external waste gate, apexi ecu + commander, fpr, t66, nitrous

ad4m1 · November 25, 2012, 11:08:37 PM

hows does it idle and run off boost

davehg · November 26, 2012, 05:46:31 AM

I\'d ditch the nos straight away

1988typer · November 26, 2012, 06:15:11 AM

It runs fine off boost idlea fine. The second the turbo

Nos is never used

Is there any where near gloucester that i could take this to? Its not boosting at all now. Soon as boost trys to cut in it just splutters.

ad4m1 · November 26, 2012, 07:30:51 AM

And maybe get map and fuelling checked before something lets ago

1988typer · November 26, 2012, 09:03:46 AM

Okay im not a mechanic by all means but is there any chance my spark plugs just arent keeping up with the fueling?

Bobbit · November 26, 2012, 02:01:35 PM

check the clutch, try to pull away with the hand brake on and see if it tries to move. It\'s probably not the issue but an easy check to rule it out.

nuki · November 26, 2012, 02:45:40 PM

mate had very similar issue. turned out to be faulty HKS twin spark.

1988typer · November 26, 2012, 02:48:15 PM

100% not the clutch that would be slipping. Im going to buy some hks plugs does anyone know the beat place?

1988typer · November 26, 2012, 03:09:52 PM

Anyone know where to get hks spark plugs?

ad4m1 · November 26, 2012, 03:12:48 PM

doesnt need to be hks plugs. pretty sure theyre just rebranded ngk iridiums. just go to any decent parts stores and they should be able to get decent heat range ngk plugs.

Bobbit · November 26, 2012, 04:22:31 PM

Quote from: 1988typer;842598100% not the clutch that would be slipping. Im going to buy some hks plugs does anyone know the beat place?

You sure, mine did exactly this, and was a nightmare finding the fault.

1988typer · November 26, 2012, 04:44:32 PM

It had a 3 paddle clutch fitted 600 miles ago. When i was driving the car my friend following said when it was trying to boost it was spitting flames out.

Thing is i brought plugs last week ngk platinum ones because the car would even start from could and ever since i\'ve had them in i\'ve had nothing but problems it seems. So i managed to hunt down new hks iridium plugs for 14 quid each which i think is a decent price also brought new leads. Once i have fitted that its going for a re-map. Hopefully fingers crossed that should be the last of my boosting problems