anyone with 550cc prim and 1600cc secondaries?
 

I would like to know how you guys set up your staging for it to have a good idle and smooth transition when boost kicks in...

thanks

Most cars with 550cc primaries & 1600cc secondaries will need to be up around the 95% mark in the % stage.Once you change to a setting like that you will then have to go back & take out fuel in the lower load points to compensate.

copied from the sticky up top.

95% stage, 0% vacuum at 3500RPM.

thanks all for the input , im still trying to understand the sticky thread =)

I can´t understand why you use 1600cc injectors at all...
How many of you have over 600hp engines?
The 1600cc are just harder to fine tune!

Use the formula:
(hp x 0,65 / 4) x 10,5)) = what you need...

1600's are only in the secondaries... Remember, most rotaries run a staged injection setup.

BTW, since we are not piston engines, 550/1600 combo will only support ~450bhp on a 13bt at 80-85% duty cycles ;)

nice call infini....

well for me primarily the new 1600 bosch injectors are dirt cheap for me heheheh.... so i used it on my setup 680cc r/c engineering primaries and 1600cc secondaries bosch.....

anyone else have set up like this for a smooth transition? .....im still waiting on my plx wideband.... its been forever

i had ur setup. but 95% stage? that fucked my car up even more, I think I had like 30 or 40. Im going to 550cc primaries tho, cuz my cosmo engine has a weird primary rail and weird looken injectors. (the primary rail off an fc won't work w/o fab work) The secondary I can just use off my tii.

why is 680 / 1600 bad?

i dont think anyone ever said they were bad.

I got the 680/1680 combo with like 98% stage 3K rpms and 00"hg.

I couldnt get a good transition staging at 00hg, I had to do mine at 2psi, the primaries arent even close to maxing out either. 95% stage and i believe 2500rpms, although it never makes boost that fast anyways.

What kind of turbo are you running, at how much boost? Is your engine street ported?

How are you setting up the timing?

i couldnt get a nice staging at vacuum points either , i had mine on 6psi.....will see what it does if i put it lower

i think 6psi is too high man. 0-3 i think is ideal.

Whatever you stage it at, you want to have as smooth and gradual a load map at optimum AFR's as is possible.

Your not goin to get a smooth transition because of the large gap between the 550 and 1600 injector, unless your running a Tec3 where you can bring the injector on by percentage.

i had a smooth transaction with 680 and 1600's?

well mine is smooth at 6psi....shall fine tune it more to bring it down to 3psi as mentioned by rexryder and see how it goes.

yeah my 880 pri and 1240 secs were bad 00hg i recon that i will need at 3 or 4 psi i think

I have 550 pris and 1600 secs and staged as follows:

90%
3500
00"hg

I would say the transition is pretty smooth.

The resolution may not be as fine on a Microtech but a smooth transition can still be had.

I think alot depends on how picky someones ass is. There are people out there who want there car to ride and drive like a cadillac or something with absolutley no little nothing hiccups. Personally i think the transition can be plenty smooth with the microtech, especially in matrix mode.

I do Know thar rotaries run staged injection...
If you use Bosch injectors, then I also know that their cc figures are set at 80% duty-cycle from the beginning/factory. And I am certain it's the same with Denso!