Steve Posted August 21, 2006 Share Posted August 21, 2006 or dampener, well i think thats what it is called Does this cause a restriction in the fuel system at all? And is it really needed? Just thinking as at the moment i have the Inlet side totally stripped down so could remove now if required. I will be going single by the end of the year and i have seen the bypass devices which take these out of the fuel system. Is it worth removing it or just leave it there? Link to comment Share on other sites More sharing options...
Wez Posted August 21, 2006 Share Posted August 21, 2006 I have left mine in. Link to comment Share on other sites More sharing options...
uk-rich Posted August 21, 2006 Share Posted August 21, 2006 mines out Link to comment Share on other sites More sharing options...
JohnA Posted August 22, 2006 Share Posted August 22, 2006 If it perished it could theoretically be a restriction under full load. It is meant to prolong the life of injectors/fuel pump, not sure how effective it is though. People have ran for years without it, go figure. I'd replace it and keep it in, why add another layer of risk... Link to comment Share on other sites More sharing options...
Steve Posted August 22, 2006 Author Share Posted August 22, 2006 Thanks all. Just thought i would ask as its easy to get to at the minute. Link to comment Share on other sites More sharing options...
Matt Harwood Posted August 22, 2006 Share Posted August 22, 2006 With all those banjo bolts with tiny holes, I'd guess it must be a restriction... Neddless to say, mines out. Make sure you're feeling strong though, I've removed a couple now, and the bolts are bloody tight! Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted August 22, 2006 Share Posted August 22, 2006 Ya big girl, mine came off without putting up any sort of a fight. Link to comment Share on other sites More sharing options...
V8 Killer Posted August 23, 2006 Share Posted August 23, 2006 The fuel pulsation damper is the single largest restriction in a stock Supra TT fuel system. That is based on USA testing with our stock 550cc injectors. I can not say for a fact if it is the biggest restriction in non-USA-spec Supras, but I can say for sure it is one of the biggest restrictions. Anyone wanting high BPU power or a single turbo without a proper fuel system should go around this line with the stainless steel braided bypass line. Especially those going to single turbo, VERY important! Kind regards, Dusty Link to comment Share on other sites More sharing options...
Steve Posted August 25, 2006 Author Share Posted August 25, 2006 Matt would just like to add that i agree with Ben, you must be a big girl, mine was off in less than a minute Link to comment Share on other sites More sharing options...
Matt Harwood Posted August 25, 2006 Share Posted August 25, 2006 Link to comment Share on other sites More sharing options...
JohnA Posted August 26, 2006 Share Posted August 26, 2006 Matt, you've seen hoses and fittings of both UK and JSpecs haven't you? Could it be that the pulsation device is more of a restriction on one compared to the other? I don't think that mine has been disturbed since birth, and mileage is rather high. Fuel pump ain't a spring chicken either. Still, it produces more fuel than I need. Don't know how it would be with the needs of a big single, but judging from my airflow and AFRs the UKSpec setup would be fine with around 550bhp at least. Link to comment Share on other sites More sharing options...
Steve Posted August 26, 2006 Author Share Posted August 26, 2006 John do you want me to send my old pulsation dampener so you can have a look at it and do some testing or something. Will chuck it in the post if you do. Link to comment Share on other sites More sharing options...
Wez Posted August 26, 2006 Share Posted August 26, 2006 I am running with it in on a single Walbro, stock FPR, 650cc injectors and have not had any fueling issues to date Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted August 26, 2006 Share Posted August 26, 2006 John do you want me to send my old pulsation dampener so you can have a look at it and do some testing or something. Will chuck it in the post if you do. J Spec and UK Spec have the same part number so they must be the same with regards to flow abilities. Part Number is 23207-46021 Link to comment Share on other sites More sharing options...
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