matthewpickup

what injectors do you guys think for 380bhp? i wanted siemens 55 but as i cant get hold of them dose that mean the only choice is greys?

gjh

light blues??

manoj

iTrader: (4)

What he said, light blues (400's) will do 380 - 400, depending on engine spec. and turbo.

thx,
Manoj

matthewpickup

thanks guys the turbo is a t34 .63 and planning to use the 380bhp msd off the shelf chip so are the blues better than the greys ? or is it power output thing?

Bart

Power is limited by youre turbo. Both will flow enough. The Siemens injectors however are better in every aspect then the l blues or greys.

Rsmat

iTrader: (2)

Is always like a set of injectors that could out flow my turbo just to be on safe hands.


Ps a set of 55lb or 83lb Siemens will be fine.

matthewpickup

i know that you want the injectors to basically able to out do the turbo and i know siemens 55 would be ideal but no where sells them anymore and this is the only reason i am looking to other injectors , dose anyone have an idea if there maybe new injectors comming onto the market ? as i am just at the stage of building not in the pickup .

mark r

have you not looked at msd for them?

silky16v

iTrader: (1)

as above has MSD not got them?

matthewpickup

yep tryed them last monday and they told me they didnt have any , think they said the makers stopped making them , which ever it was i could not get hold of them , are greys better to set up than the blues? as the off the shelf 380 chip msd sell (that i plan to use) say its for greys or siemens55s?
i guess i am asking which will be the best to use, grey or blue?
thanks

RSMK4TURBO

I was told by MSD to source some secondhand Siemens 55lb injectors as they aint got any,or some new 403 Greys for the 380 bhp tuning package they do.

matthewpickup

yea i think thats what i will do just get some new greys

RSMK4TURBO

Think i will also get some new greys,cant see a problem with them for that power,shame the Siemans aint available at min tho.

JOHNDQ

Have you looked into Bosch Motorsport injectors there really good but don't know if they will work with the standard ECU

graham c

iTrader: (5)

just buy some 83,s and have your chip written for them thats wot i have

matthewpickup

no not looked into them , not heard of them to be honest , and think its less trouble to just go with the greys and the right chip / set up for them

matthewpickup

do they still sell the siemens 83s as on the msd web page you could not buy 55s or 83s

matthewpickup

yea its just unlucky that we were not looking for them a year ago lol

dissmalrs

iv got 55 and my car id running 32psi and is still a but rich through the rev range

matthewpickup

is that not down to the set up ? or turbo size? think its better to run rich than lean mind you

graham c

iTrader: (5)

well if you ever go for more power youll need bigger injectors so just buy them once ive been their and done it

dingla rs

iTrader: (2)

tony at turbosystems may have siemens I got a set few months back

matthewpickup

o thats intresting will see if i can find him on here and ask


as for going more power i am going to run 4x4 so i read that the transmission wont take much more (400bhp i read i think) and so only looking to stay around the 380ish more than enough to suprise boy racers

Jan300

I have a new set of siemense 55 injectors for sale

matthewpickup

how much you looking for them?

Psycho Warren

iTrader: (5)

can you get a 380/380 conversion on greys running nicely on closed loop off boost/cruising??

or do they flow too much low down to be efficient??

I want to go closed loop to improve my 12mpg urban consumption but i wonder if id be better off getting different injectors too.

matthewpickup

well the chip msd sells is for 380bhp on greys or siemens 55s .
12mpg thats erm kinda nasty hope i get more than that once i have it built
(was kinda hoping to get better than the pinto moterway @70 i get 30mpg ,no idea are the doors)

Jan300

Closed loop fueling work fine

Jan300

Pm sent
I also have closed loop chip for siemense and grey injectors.

scoooby slayer

iTrader: (4)

when stu live mapped my last saph on t4 83lb siemens no closed loop it was great on fuel cruising and around town off boost, ive had a few generic chip cossies years ago and they were all utter shit on fuel.
i cant see greys being that much worse live mapped.

RS SHAUN

iTrader: (24)

What's the spec on the Siemens chip mate?

Jan300

Pm sent

matthewpickup

if anyone is selling siemens 55s let me know thanks