I'm junkyard turboing a D15A3 in an 87 CRX Si and I need to upgrade my stock 180cc injectors to something in the neighborhood of 270cc - 340cc. It'll have either an SMC or AFC hack for fuel management so I can't really go any smaller than 270cc or I won't be able to use much boost, and I can't really go any bigger than about 340cc or the fuel hack won't be able to reduce the map signal voltage enough, i.e. not more than -50. I'm only looking for about 7-8 psi of boost and 150whp (up from 91hp stock lol) so please don't suggest DSM 450s cause I can't use 'em.

So, the unanswered questions are 1) what size injectors do non-turbo DSMs use 2) are my stock injectors peak-and-hold or saturated (I would just go out and measure them but the car is hours from here and my shop manual doesn't say) and 3) do any hondas or DSMs use ~310cc injectors that are plug-and-play with my clips and fuel rail and match my impedence?

Sorry if this has been covered before but I read thru about 200 threads in my archive search and I searched elsewhere online till my eyes are watery and burning. All they talk about is the flow and impedence of <U>turbo</U> DSM injectors and that pratically all 88+ d-series and b-series use 240cc injectors.

Mucho thanks for any and all help and for a great forum.

 

ford probes turbo use 310cc - I don't know if they are low or high imp. I think they are high ehh..

 

non-turbo DSM should be 370. what about prelude injectors? i think some years are 270.

 

Thanks for the info guys. Can anyone else confirm that the non-turbo DSMs are 370cc, or if the 310cc Probe injectors fit my clips and rails? Any idea what years are which size and if they (or my stock 180cc) are low impedence or high impedence? Thanks again.

 

non turbo DSMs can't be 370... especially not the RS, with its dodge neon motor... the automatic 1g turbo DSM uses 390s. i'm using them right now for the hack. they are

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ross1459 &raquo;</TD></TR><TR><TD CLASS="quote">non turbo DSMs can't be 370... especially not the RS, with its dodge neon motor... the automatic 1g turbo DSM uses 390s. i'm using them right now for the hack. they are </TD></TR></TABLE>

my bad. I forgot there are 3 DSM sizes. That means the non-turbo are in the 240-270 range like Bseries. I have a B so I don't pay attention to small injectors. There are usually some RC310s for sale in the FI Classified section.

 

manual turbos - 450cc
auto turbos - 390cc
shitty models - 240cc

 

Anyone else know of any 310cc-340cc stock injectors that are plug-n-play with my 87 Si rail and clips? Do the Ford Probe turbo 310cc ones fit and do they match my impedence? Thanks.

 

Anyone??

 

c'mon guys, someones gotta know this! Pretty please? With a cherry on top?