Siemens/Deka 72 and 83# Injectors

[Chris W]

We now offer Seimens/Deka 72 and 83# injectors. These are the low impedance 2.4 ohm version injectors. Cost for a set of 4 is $240. and $260. respectively.

Chris-TU

[1966 dart wagon]

SWEET since i was looking at getting these, will these directly bolt in like the +40s? any mods required for install?

[bakes]

Ohhhhhhhhhhhh pretty , must have!!!!:eyebrows:
Dam good price too!!!!

[Chris W]

SWEET since i was looking at getting these, will these directly bolt in like the +40s? any mods required for install?


None at all. They are the same size as the factory versions. You should use an adjustable fuel presure regulator to insure the proper A/F ratio.


Chris-TU

[1966 dart wagon]

None at all. They are the same size as the factory versions. You should use an adjustable fuel presure regulator to insure the proper A/F ratio.


Chris-TU

sweet I'm sold :D

[Ondonti]

are there any good cals out for this size injector?

[Chris W]

are there any good cals out for this size injector?

That depends on your definition of "good". :D I have been asked by a few people to carry these injectors so I added them.


Chris-TU

[MopàrBCN]

are there any good cals out for this size injector?

If you want to run savely above 300bhp those ones would be a must in my opinion - besides other things of couse. Yes the +40 thanks to rising rate in the FPR support in theory more then 300hp BUT I was talking about "savely running above 300hp".

RE cals, those injectors are predefined for scaling on the cals on this board.
If making your own cal is not yours it wouldn't be a technical problem for either the vendors or anyone here involved in making cals to set you up.

But even if a cal wasn't scaled for those and you take boost control in you own hand, I think those injectors are great news. You still have the possibility to control A/F via the fuelpressure (although this would not be my preferred option).

@TU
GREAT NEWS!

[Aries_Turbo]

the current DIY cals do have options for this size injector scaling in Chem2 or for SMEC cals, in the assembly setup. it will probably take some tweaking to get everything to be happy though.

either way, good deal on these injectors.

brian

[1966 dart wagon]

the current DIY cals do have options for this size injector scaling in Chem2 or for SMEC cals, in the assembly setup. it will probably take some tweaking to get everything to be happy though.

either way, good deal on these injectors.

brian

yep, he has said it all i know dcal as an option for 72lbs injectors not sure on 83's but i know im going with the 83s

[Aries_Turbo]

chem2 has an option for 83's.

Brian

[1966 dart wagon]

I ment to say chem2 has a setting for 72lbs, not dcal, good to know chem2 does support them:D

[TurboII]

We now offer Seimens/Deka 72 and 83# injectors. These are the low impedance 2.4 ohm version injectors. Cost for a set of 4 is $240. and $260. respectively.

Chris-TU

are these bigger then plus 40?

[crazymadbastard]

are these bigger then plus 40?

+40 are 52lbs at 50-55 psi fuel pressure. I believe that everyone else rates
their injectors at 42ish lbs of static pressure. So yes.

[BadAssPerformance]

+1, standard rating is @ 43psi....

[TurboII]

so, what are these considered as +50's? lol

[crazymadbastard]

probably more like +120s ;)

[mario03SRT]

If you want to run savely above 300bhp those ones would be a must in my opinion - besides other things of couse. Yes the +40 thanks to rising rate in the FPR support in theory more then 300hp BUT I was talking about "savely running above 300hp".

RE cals, those injectors are predefined for scaling on the cals on this board.
If making your own cal is not yours it wouldn't be a technical problem for either the vendors or anyone here involved in making cals to set you up.

But even if a cal wasn't scaled for those and you take boost control in you own hand, I think those injectors are great news. You still have the possibility to control A/F via the fuelpressure (although this would not be my preferred option).

@TU
GREAT NEWS!

I'm sorry to dispute your claims but you are wayyyyyy off. For 300+ hp a +40 is more that enough. A true 72 lb injector rated @ 43 psi will support closer to 450+ hp. Douching your cylinders is a bad idea even if this would start or stay running long enough to wash the cylinders.

Go see www.rceng.com and use thier calculator to see my point.

FYI,
Marion

[Ondonti]

I was only asking what people are using to take advantage of these since I know so few have aftermarket management.
I don't support the use of stupid idiot fueling crap that I do on my car lol.

Some 83's would be great for most of us to use e85.

[1966 dart wagon]

I run e85 on my 40+s right now, 23lbs of boost from the stock turbo, with no detonation, around 18+ i had to increase the fp to make my af correct since the injectors pulse width wouldn't go any higher.

[MopàrBCN]

I'm sorry to dispute your claims but you are wayyyyyy off. For 300+ hp a +40 is more that enough. A true 72 lb injector rated @ 43 psi will support closer to 450+ hp. Douching your cylinders is a bad idea even if this would start or stay running long enough to wash the cylinders.

Go see www.rceng.com and use thier calculator to see my point.

FYI,
Marion

Hi, I accept your point of view although I don't share it entirely:

The way I calculate you would support with +40% injector at 80% dutycycle 309hp. My recomendation was aimed at projects going beyond 300hp and referred to "savely" going this way!

So yes, also my calculation supports your claim for 300 hp with +40% but at the same time it supports the point I made, because in my view your are close to the limit at 300hp.

If you run 72 injectors your can achieve sufficient fueling at 300 hp with much less dutycylce. This is my point.

At the same time I wouldn't put 72 injectors on if I'd plan to run less then 300 hp. But I stated "savely" and "above 300hp". Anyone who want's to go beyond 300hp with +40 shall feel free to do it. I wouldnt.

Thats all :-)

["Top Fuel" Bender]

I made 320hp 370ft/lbs with the 40+'s with a stock fuelpressure regulator
and a bad O2 giving below 10:1 air/fuel across the board

but I have since switched 72's