Injectors from different cars and manufacturers have different size and capacity.I am not an expert in injectors but I'm trying to help where people want to upgrade their injectors. If you have injectors and know the size flow rate and impedance and its not listed here and you feel it might help e-mail me a copy of a photo so that I can add this to our list.there are 4 main different things of importance re injectors. size(flow), feed (top or side feed) and impedance.Flow is how much fuel they can put out people in the us use pounds most others uses cc we will use cc/s for our examples. if you know the calculation for conversion to pound or reverse please email me.
Note:If you change your injectors you will require your ecu to be modified as the car will run very rich, if it runs at all.the reason is Injectors open for a certain amount of time and spray fuel but if the injector is open and the size of the nozzle is bigger then more fuel comes out.
Another reason to upgrade injectors is when you fit a bigger turbo cause the the bigger turbo is increasing hp which in turn needs more fuel to burn
The stock injectors can't handel it and the car leans out and damages if not destroys the engine so something else to consider is a bigger fuel pump when you up grade your injectors.
Top Feed
Side Feed
Top feed injectors and side feed injectors
The injectors the Nissan motors use and their sizes stock.
RB20 det uses top feed high impedance injectors 270cc
RB25 uses side feed high impedance injectors 370cc these are the same as the sr 20 det.
RB26 uses top feed low impedance injectors. 440cc
SR20 uses side feed high impedance 370cc injectors (same as rb25)
VG30dett uses side feed high impedance 370 cc injectors (same as above)
N/A engines I have not included these but are generally smaller than their turbo counter parts.
rb30 e & et 250cc low impedance
Common upgrades
RB20
high impedance top feed.
the main choice is from the series 5 rx 7. these are 550cc injectors (they are denso and the part number is 195500-2020).
nismo make 2 as well 550 and 600 cc.
But I believe that you can use low impedacnce injectors with a resistor pack from a gtr this has not been confirmed.
This is what the series 5 injectors look like.
RB26
Top feed low impedance injectors.
these are cheaper than side feed and come in many sizes from 550 up to 1000cc+ in 100cc approx steps.
suppliers Nismo, Apexi,Denso,Sard,HKS Trust etc
rb26 550 injectors
rb26 600cc injectors
part number assuming nismo part
16600-RRR60
people say these are 550's I have doubt
RB25
high impedance side feed.
these are very expensive supplyiers are nismo, apexi,denso,sard, HKS,Trust
sizes avaliable 550,660,740,850 cc
use the cc rating to give you a guide as to how much hp they can handel there is a formula which I will include later .
s/hand after market options.
s15 sr 20 engine is reputed to have 480 cc injectors (hard to find)
20b rotary engines are believed to use 850cc injectors.
people fit a new fuel rail to enable the use of top feed injectors but you would still need high impedance if you are using a modified stock ecu or a resistor pack to change impedance.
850cc side feed sard injectors
the nismo 740cc side feed injectors
550 side feed sard injecotrs
SR20
refer to RB25 the same.
VG30dett
refer to RB25det the same
Toyota's
US spec 2jz supra and 3s-gte from the gt4 have 550 low impedance side feed injectors.
Jap spec 2jzgte and 7ma-gte and 1 jz-gte have 430 side feed low impedance injectors.
most people convert to top feed as there are more injectors options there.
The jury is still out with me as to whether bosch injectors work on nissan cars but here are some references.
you might need a new fuel rail and aftermarket managment to run these.
'meggala"
added the sizes or bosch injectors from various cars with part number
(
-------------------------------------------------------------------
0 280 150 001 265 cm3/min
0 280 150 002 265 cm3/min
0 280 150 003 380 cm3/min
0 280 150 009 265 cm3/min
0 280 155 009 346 cm3/min Saab Turbo
0 280 150 015 380 cm3/min
0 280 150 024 380 cm3/min Volvo B30E
0 280 150 026 380 cm3/min
0 280 150 036 380 cm3/min MB 4.5l
0 280 150 041 480 cm3/min MB 6.9l V8 / Cadillac
0 280 150 043 380 cm3/min BMW
0 280 150 100 185 cm3/min
0 280 150 121 178 cm3/min
B 280 410 144 434 cm3/min Bosch R-SPORT
0 280 150 200 300 cm3/min BMW
0 280 150 201 236 cm3/min
0 280 150 203 185 cm3/min
0 280 150 208 133 cm3/min
0 280 150 209 176 cm3/min Volvo B200-B230
0 280 150 211 146 cm3/min
0 280 150 335 300 cm3/min Volvo B230 turbo
0 280 150 400 437 cm3/min Ford 4.5l
0 280 150 401 437 cm3/min Ford
0 280 150 402 338 cm3/min Ford
0 280 150 403 503 cm3/min Ford
0 280 150 614 189 cm3/min
0 280 150 704 170 cm3/min
0 280 150 706 214 cm3/min 250kPa
0 180 150 712 214 cm3/min 250kPa Saab Turbo 2.3l
0 280 150 715 149 cm3/min
0 280 150 716 134 cm3/min
0 280 150 762 214 cm3/min Volvo B230F
0 280 150 802 284 cm3/min Volvo B200 turbo, Renault J7R turbo
0 280 150 803 384 cm3/min
0 280 150 804 337 cm3/min Peugeot 505T
0 180 150 811 298 cm3/min 3.5kPa Porsche Turbo 944
0 280 150 814 384 cm3/min
0 280 150 834 397 cm3/min
0 280 150 835 397 cm3/min Chrysler
0 180 150 951 346 cm3/min Porsche Turbo
where ths info was found
http://www.co.jyu.fi/~rax/suutin.htm
...more to come soon!!!!!!!!!!!!!
A final note: the data in the following table is provided only as a guide. When installing new injectors you should always proceed with care, testing flow rates and measuring actual air/fuel ratios if you are at all unsure of the injectors that you have selected.
If you have any information that would help in increasing the quality of this data base, please email Advanced Engine Management at
steve@aems.com.au Providing additional accurate information will help everyone!
Conversions
• 500cc per minute is approximately equal to 49lbs per hour which is equal to approximately 100hp.
• lbs/hour = cc per minute / 10.2
• lbs per hour = HP / 2.04
• cc per minute = lbs per hour x 10.2
• cc per minute = HP x 5
• HP = cc per minute / 5
• HP = lbs per hour x 2.04
Fuel Injector Flow Rates
Injectors listed by flow rate, from lowest to highest
