Im currently running the bank-bank system on my car. i would like to get some feedback on running 160# injectors on a street car.
My car is going to require about 95# injector, but why not just get the 160's so I will never have to buy injectors again?

Also the quality of 95# injecters that are avalible, seem to be low quality. The problems with them is the tendency of locking up under high fuel pressure.

If anyone is running these I would like feedback on them

Thanks!

 

they are propane injectors actually..

they are low impediance right? it woudl be cool to use a superfueler with these things..

 

How are you figuring you will "need" 95# injectors in the first place?

Rich Krause

 

95 lb/hr injectors, what's your set up?

 

83# injectors at about 100% duty cycle is about 1200hp. Thats close to my goal but dont want to push it. 95#ers would be about 80% duty cycle at about 1200hp. Both turbos combined should net about 1400hp. I will never bring it this high but 1200hp may be possible.

I did some research on those 160's. A guy that tunes cars said he has tried them and they are too big at idle. He said he can not pull enough fuel to bring the idle down to 1K without being overly rich. The car would have to idle in the range of 2K rpm. This was just one guy, I cant get much more input on this.

Right now Im waiting to see if Mac from fasttrack can work out a deal to get siemens 110# injecters for less then $110 a piece. If this doesnt go though I will probably end up with 95's

 

I think you have the right idea with injectors in the 90-100l# range. You will not get 160# to idle right. The proper duty cycle will be shorter than the rise time of the injector, so it would idle very erratically. A smaller injector run with a little higher fuel pressure (assuming you have enough pump) should work fine. If you have a lot of pump, you might try cranking up the FP with your current injectors. I am using 92lb'ers with a 55psi base pressure and it's a good combo (with a stock PCM and low-Z injector driver).

Rich Krause

 

If you find anything out from Mac, let me know. I'd like to run high fuel pressure and 110# injectors. I'm leary of 160# injectors and bank/bank on a small cube motor.

 

Z8's is running sequential and 95's right now.

 

You may be able to get 160's to idle pretty nicely as long as you upgrade to a full sequential setup. This would amount to a 80lb/hr injector running in once-per-rev firing. Since you will fire the 160's every other rev with full sequential, it should be no sweat. I wouldn't want to try to tune it to pass a smog test though!

In all honesty, if you want a true street car, I would recommend at least 8 injector channels. I would prefer to set it up as 4 channels devoted to 8 80lb/hr's and 4 channels devoted to 8 more 80 lb/hr's. The second set would be staged to come on under boost. If you mount them further upstream (say near the plenum), you will get a little extra air charge cooling from them too when under boost. This is how CART engines are (or used to be) setup. Firing the injectors in this manner will not require a cam sensor either.

And yes, those 160's were originally from a propane fueled Ford, I believe. They do not have the "pencil" spray pattern that we are all used to, either.

Just my $0.02 from my days working at Electromotive.

 

It's been a while since I worked with a FAST setup, but I know that there are different options available concerning injector channels at time of purchase. I am not sure if this is a hardware or software change... I would call FAST to find out the options.