hadyn Posted April 2, 2005 Share Posted April 2, 2005 got it sorted today and i now boost at 1 bar all day quick question, will hand tightening the locking nut suffice, or would you recommend using a socket/spanner on it? Quote Link to comment Share on other sites More sharing options...
250horses Posted April 2, 2005 Share Posted April 2, 2005 got it sorted today and i now boost at 1 bar all day quick question, will hand tightening the locking nut suffice, or would you recommend using a socket/spanner on it? nip it lightly with mole grips - keep the mole grips in your car - when weather gets colder you will boost higher Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 2, 2005 Share Posted April 2, 2005 why the mole grips?? is it likely to come loose??? Quote Link to comment Share on other sites More sharing options...
250horses Posted April 2, 2005 Share Posted April 2, 2005 nah...........i meant the mini 99p mole grips you can get so you dont over tighten. No probs about over boosting as I am sure you would known when u did and have a handy set of mimi mole grips in the glove box Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 first run i actually hit fuel cut @ 1.1 bar, not as severe as everyone makes out! Quote Link to comment Share on other sites More sharing options...
Jake Posted April 3, 2005 Share Posted April 3, 2005 first run i actually hit fuel cut @ 1.1 bar, not as severe as everyone makes out! Did the red triangle light on the rev counter come on at the same time? Proper fuel cut is horrible. What FCD have you got fitted? Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 Did the red triangle light on the rev counter come on at the same time? Proper fuel cut is horrible. What FCD have you got fitted? AFAIK no FCD is fitted, no red triangle came on (or i didnt notice it) as soon as it held at 1.1 bar for few seconds, the power cut and then came back on again pre-fuel cut perhaps? Quote Link to comment Share on other sites More sharing options...
Jake Posted April 3, 2005 Share Posted April 3, 2005 Then you didn't hit fuel cut. Which explains why you thought it was not as bad as "everyone makes out". Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 Then you didn't hit fuel cut. Which explains why you thought it was not as bad as "everyone makes out". so what was it then??only happened once and was a deffinate quick cut on power??FCD probably been fitted previously? Quote Link to comment Share on other sites More sharing options...
Jake Posted April 3, 2005 Share Posted April 3, 2005 Plugs breaking down is the usual one that seems like FC but not as severe. Stock FC happens at 1.0 bar iirc and makes the red triangle light come on. If the car has had a FCD fitted then the FC point is either raised to 1.25bar (Thor) or removed altogether (Cheapo FCD) Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 if a plug had broken down though or begun to break down wouldnt i be getting the same symptons @ 1 bar and generally the car would run badly on and off boost? Quote Link to comment Share on other sites More sharing options...
Jake Posted April 3, 2005 Share Posted April 3, 2005 Plugs break down at certain boost levels but they are still fine below that level. Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 when you say 'break down' do you mean physical damage to the plug? or do you mean they dont produce an efficient spark?? also do you think my fuel cut has been lifted? Quote Link to comment Share on other sites More sharing options...
lovatt Posted April 3, 2005 Share Posted April 3, 2005 hadyn you need grade 7 spark plugs, if you have hit 1.2 bar you must also have a FCD already fitted Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 didnt hit 1.2 liam, only 1.1 i've got the NGK grade 7 copper plugs in as reccommened by mkiv.com *edit* the cut was more like the sensation you get when you hit the j-spec limiter at 110 mph Quote Link to comment Share on other sites More sharing options...
lovatt Posted April 3, 2005 Share Posted April 3, 2005 that really does sound like plugs, check your gaps Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 that really does sound like plugs, check your gaps well i got a much worse sensation @ 1 bar with the same grade 7 plugs gapped to 1.1mm, it was like constant jerkiness and hesitation, but in a new set of the same NGKs gapped to 0.85mm and they're fine running 1 bar, it just seemed cut when it overboosted to 1.1 bar as i was setting the boost Quote Link to comment Share on other sites More sharing options...
lovatt Posted April 3, 2005 Share Posted April 3, 2005 Went out for another run and got 1.2bar!!!!! eeek!! thats why i said you had a VFCC Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 thats why i said you had a VFCC where can i find it??theres no sign of anything knocking about obviously? aftermarket ecu perhaps? Quote Link to comment Share on other sites More sharing options...
lovatt Posted April 3, 2005 Share Posted April 3, 2005 you need to look under the carpet in the passenger foot well, look at the ecu stickers and have a good look around, even under the ecu for piggy backs Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 3, 2005 Share Posted April 3, 2005 i've always thought its been played around with whilst it was in japan liam - no one fits 11" wide rims for standard power do they?? also the t-piece for the boost gauge was still there(as you know), and the hose slipped incredibly easy off the actuator when i was installing the valve, which was a bit suprising when you consider how rigid the other hoses are Quote Link to comment Share on other sites More sharing options...
tDR Posted April 3, 2005 Share Posted April 3, 2005 well i got a much worse sensation @ 1 bar with the same grade 7 plugs gapped to 1.1mm, it was like constant jerkiness and hesitation, but in a new set of the same NGKs gapped to 0.85mm and they're fine running 1 bar, it just seemed cut when it overboosted to 1.1 bar as i was setting the boost You cannot assume they are gapped at 0.85mm unless you physically gapped them yourself. They are not pre gapped out of the packet - NGK expect you to gap them. That's why you gap plugs, sounds like the problem you are having above 1.1bar Quote Link to comment Share on other sites More sharing options...
hadyn Posted April 4, 2005 Share Posted April 4, 2005 went to work this morning and with the colder temps the boost spiked back up to 1.1 bar and the resulting 'cut' sensation reoccured. As soon as this happened i pulled up and removed the valve and plugged the original boost source hose back into the actuator to get my old peak of 0.9 bar back. Turbo seems to spool a bit slower now and it just doesnt seem as 'fast' I suppose thats the difference 0.2 bar makes Quote Link to comment Share on other sites More sharing options...
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