cainhead Posted August 9, 2014 Share Posted August 9, 2014 Hello, Need a little help, ive be suspect of my boost controller for a while now as the car is full BPU and when I switch the controller to off, the car still only reaches non BPU stock boots. To get anywhere near 1 bar I have to have a higher than expected setting. Anyway today I reconnected the system as it was before I installed the controller and it seems pretty good. 1.0 bar in the lower gears creeping to 1.1 in 4th then had to slow down. The controller I have is an old Blitz SBC dual solenoid. I always read about them being a pretty good unit, so can anyone let me know if they have had issues and what they may have been. Also does anyone in the London area have a controller I could please borrow for the day to run a test. I could pick it up and drop it straight back when done. All help gratefully appreciated as im really enjoying the car this summer and just want to iron out the few issues I have right now. Cheers Quote Link to comment Share on other sites More sharing options...
Benjy Posted August 9, 2014 Share Posted August 9, 2014 I've got a DSBC and if it's switched off it hits 0.8bar. But I have got a restrictor ring in place. When I removed the second cat, on cooler evenings on full boost in top gear it'd hit fuel cut whilst on the stock ECU. To achieve 1.2, I think my gain setting is at about 65ish. Yours sounds about right to be honest mate. Quote Link to comment Share on other sites More sharing options...
cainhead Posted August 9, 2014 Author Share Posted August 9, 2014 I've got a DSBC and if it's switched off it hits 0.8bar. But I have got a restrictor ring in place. When I removed the second cat, on cooler evenings on full boost in top gear it'd hit fuel cut whilst on the stock ECU. To achieve 1.2, I think my gain setting is at about 65ish. Yours sounds about right to be honest mate. Mines a UK so no restrictor ring. Also I thought BPU increased the stock boost (0,8), and shouldn't the boost level be the same in the off position as a car with no controller at all. When I remove the controller I get much better boost. Are you sure you gain is at 65, that sound really high as the manual recommends 5 - 25 for the 2JZGTE. Do you mean the volume is 65? Sorry if I sound confusing. Quote Link to comment Share on other sites More sharing options...
Benjy Posted August 9, 2014 Share Posted August 9, 2014 I'll have to have a look at the controller and see what it's on. The boost will find it's own level depending on air temp, exhaust size etc. but yeah, if I turn mine off, typically it's 0.8ish. Quote Link to comment Share on other sites More sharing options...
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