imi Posted May 30, 2006 Author Share Posted May 30, 2006 Are these number with the engine running or just ignition on, if its with the engine on then maybe your boost controller only reads positive boost but the fuel controller also reads vac. Just a guess as I have not used either device Ignition ON (that is, engine is NOT running) - shouldnt it all be reading ZERO, SAFC , AVC-R and my Blitz boost gauge - the last two DO READ ZERO. When the engine is running, there is still that difference of -9 >-15 between the devices..... PLUS, the SAFC only goes to a max of 0.84 PRESSURE while the boost controller reads 1.19....again, why isnt it reading the same? Quote Link to comment Share on other sites More sharing options...
Ian C Posted May 30, 2006 Share Posted May 30, 2006 Find the pressure sensor for the AVCr and tell us what it's plumbed in to. Also, have you got a fuel cut defender, perhaps an adjustable one...? -Ian Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted May 30, 2006 Share Posted May 30, 2006 sounds about right, im getting 360 @ the wheels, but i have the same problem, cant get the boost too 1.2 using a bleed valve so ? have you got a pic of the bleed value you're using ? ages ago i had one which didn't increase the boost enough until i made the hole a tiny bit bigger using a tiny drill bit which done the job. However, i'd strong advise getting an electronic controller as my mbc was a bit all over the place. Quote Link to comment Share on other sites More sharing options...
imi Posted May 30, 2006 Author Share Posted May 30, 2006 Find the pressure sensor for the AVCr and tell us what it's plumbed in to. Also, have you got a fuel cut defender, perhaps an adjustable one...? -Ian cheers Ian, Ill have to check that when i get back home later tonight. Yes, the car does have a FCD (near the ECU in the passenger footwell) - not sure if its adjustable - was there when i got the car. Regarding the plumbing, are you thinking that perhaps they are plugged into different sources. that would explain i guess the minute difference, but how come at peak boost, the SAFC only reads 0.84 Quote Link to comment Share on other sites More sharing options...
imi Posted June 4, 2006 Author Share Posted June 4, 2006 UPDATE I have nailed it down to the boost controller. The settings aint right. I changed the Duty Cycle on the AVC-R to 70% and the boost shot up to 1.38 Kg/cm2 - Ive now brought it down to 58 and it shoots upto 1.3 - I'll do another run with the duty cycle at 56 and the settings to 21111 instead of the current 32222 to see whether that controls the boost spike. any experts out there on the AVC-R that can suggest how to control the boost spike, yet sustaining a 1.25kg/cm2 boost. Quote Link to comment Share on other sites More sharing options...
supRo Posted June 4, 2006 Share Posted June 4, 2006 Just for your info Imi, mines set to 1.25Kg/cm2 and the duty is 52%. I think yours is still strugling a bit to get to the desired boost Check all your hoses and couplers. I managed to leave a coupler for the turbo pipework loose after removing the pipework and it was making 1.1 bar max. I tightened the join and it's now back to normal - 1.25Kg/cm2 spiking upto 1.35 on very heavy load Quote Link to comment Share on other sites More sharing options...
imi Posted June 4, 2006 Author Share Posted June 4, 2006 Hey Buddy... How can you check whether your AVC-R is sustaining 1.25kg/cm2 of boost and only spiking to 1.35...? Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted June 5, 2006 Share Posted June 5, 2006 Just for your info Imi, mines set to 1.25Kg/cm2 and the duty is 52%. I think yours is still strugling a bit to get to the desired boost Check all your hoses and couplers. I managed to leave a coupler for the turbo pipework loose after removing the pipework and it was making 1.1 bar max. I tightened the join and it's now back to normal - 1.25Kg/cm2 spiking upto 1.35 on very heavy load Sounds like you need to play around with your gear duty cycle, you can get rid of all spiking under load with that feature.... Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted June 5, 2006 Share Posted June 5, 2006 Hey Buddy... How can you check whether your AVC-R is sustaining 1.25kg/cm2 of boost and only spiking to 1.35...? You need to book your car in mate! Quote Link to comment Share on other sites More sharing options...
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