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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
it depends what sort of power you want from it, 55s are bigger than a grey but i dont think you would see 500bhp from them, and the t4 is potentially a 500bhp turbo
whereas the 83s are safe to over 600bhp and you would be running a real safe duty at that
Last edited by JTECH James; 28-12-2008 at 03:12 PM.
Not sure on power to be honest.Its a new roller bearing t4 i have fitted.Small turbo plenium.
Ported head & bd 16 cams.
6.8 comp ratio.
What kind of boost would be ok? hit 32 hold 28? that would do me
55lbs would max at probably at 450hp; i had 55lb on my t34.55 and it was only around 370hp (ish)
the thing with all of the siemens injectors is that the 55lb, 72lb and 83lb are all the same price
ps. i bought mine from the US and it worked out cheaper, PM me if you want the details - the exchange rate isnt as good now tho :-( but probably still cheaper
Last edited by LHD220Turbo; 28-12-2008 at 06:59 PM.
Hi , Anyone please help,, I have fitted a Garrett 3071 and 55lb black fuel injector,
I want to know if the Garrett 3071 is safe to work witht he 55lb siemen 55lb injector.
thanks emile(seychelles)
Last edited by emilegarage; 16-09-2012 at 09:45 AM.
Hi , Anyone please help,, I have fitted a Garrett 3071 (GT30)and 55lb black fuel injector,
I want to know if the Garrett 3071 is safe to work witht he 55lb siemen 55lb injector.
thanks emile(seychelles)
the 55's are too small for the capabilities of that turbo you will have to cap your power or use the larger Siemens
and I do have these in stock and maps to suite
Hi there Perfic, my cossie the head has a mild flow and port and the cams are piper 262 and im running an RS500 intercooler on standard regular leaded fuel. will it be ok witht the larger siemens
emilegarage seychelles
just turn up the fuel pressure, may need a significant upgrade in fuel pump though.
on my 60lbers with 3BAR they will flow 630cc, at 6BAR fuel pressure (max of 2BAR boost at this level) they can flow 900cc.
i'd be thinking 55lb siemens could flow just over 750cc, the problem being the fuel pump needs to be able to run 6BAR plus boost pressure to get it right, even an 044 won't guarantee this, a 413 will though, hard to get hold of though
great the 55lb's are splitting new more money down the drain
ohh well
28-12-2008, 03:09 PM
