I am running an FBO K24 set up TTS (2005) with a Eurodyne protune by Tim941.

The datalogs I have been able to do, show in these cold 30F temps, that my fuel is running out (IDC% > 100) at 5200 rpm or so. I am getting noticeable audible knock in 3rd gear - 4th etc (yes I know that is bad, really bad on E85)... when temps were in the 70s I only got knock occasionally in 4th gear near WOT at 6500+ rpms.

I think I should upgrade injectors and am confused by some things I hear and read.

I think I should go straight to ID 2000 injectors (rather than the ID1300) but have heard from some people that the ID 2000 is not suitable for Ethanol. I contacted the ID company who assured me ID2000 are okay for E20-E98% as per Chris Green's GT2 (USP E85 car).

I do intend to add a rod/pin and turbo, clutch, LSD, yada yada yada upgrade later this year but enjoy the car at current levels for the next 6 months or so.

It is truly sick the power E85 adds over 93 octane especially in this extreme cold.

Is it worth fecking with the ID1300 or should I go straight to ID2000

 

Step 1.) Ask Tim.
Step 2.) Get answer.
Step 3.) Profit!

...at least that's what I do.

Can't wait to see your car - hopefully soon.
-V

 

I don't bust his ***** until I need to as he is mega busy...the Tortuga likes to ask his brethren here on ideas then he wastes more of Tim's time

 

A respectful approach, I can dig it that too. He is super busy.

I just give him my car and say "have fun, tell me when it's ready." He knows what I'm going for.

-V

 

I'd drop for the 2000s. That's what I'm going to do. Should be good for 1k+ whp levels...when you get there.

 

I would do the smallest injector size that covers future power needs, our problem is we always want more and more, we say never above 800hp and we end with some crazy builds

Bigger injectors isnt always better imo, idle problems and poor drivability for example, taking into consideration that for a gt35 and 3.8 built engine setup 1100s injectors on race gas can do the job, and for the E85 you have to add 30% capacity on top of that, I would go with
-1300s for anything up to gt30 setup or like 900-950whp
-2000s for anything gt35 and up
But your tuner knows better all the time, this is just my opinion

For your info I was able to hit 900+ hp on 80s injectors MS109 and meth

 

I believe they is a new option on the market. They're 1600 size injectors. I read something about them on the Supra Forums.

I would just ask Tim since he's tuning your car and has a much better idea about where you want to go with your car.

BTW, post your build (when you get around to it) for the rest of us mere mortals

 

the 2000 are actually cheaper than the 1300. downside is 2000 suck at idle. my 1300 idle just like the oem inj on corn or gas. good for about 900 hp for me i won't ever build bigger than the 1300 can handle.

 

Will the 1300 make enough on E85? I've been doing the math myself and honestly thought ID2k were the way to go. I. Concerned if they won't idle on gas though! I'll ask Paul about it but when I was doing the math it looked to me like the 2k would be needed.

I've got 72lb injectors now and a stock pump, watching to see what Sambo does for a PnP drop in to solve pumps but my 72s support a depressingly low amount of power when I do the math. I've finally got an E85 station near me and am itching to check it out!

 

Honestly,
If I had to do it all over again I would never had went to E85. It is very costly transformation compared to the benefits. Just my opinion for those who might be considering it.
Robert.

 

These are words to live by!

 

Looks like the GT-R guys hit nearly 700whp on ID1300 running E85. I'm thinking that ought to be plenty for me. Really glad this came up, apparently I sux at the maths. ID 2K are supposed to be better than competitor's bigguns at idling but I agree with not oversizing injectors.

 

with my fuel system setup my tuner says I'm good for 800+ rwhp on e85 with 1300. i put my faith in him as 800 is my max goal. the car goes were its happiest at when tuning.

 

Depends how you want to look at it; regardless of what fuel you're running you should avoid at all cost running your fuel system above 85% IDC (in case the system needs to dump extra fuel in a lean condition, you have a nice "safety" cap without concern of "floating"), and once you really push the car you're gonna be upgrading the Injectors, Pumps, etc. anyhow.

BUT with a quality E85 tune, it's not difficult to see equal/greater performance than a C16/VP Import tune. Especially when you compare the timing curves, it becomes VERY difficult to run something so aggressive (on E85) that you start seeing unsafe timing corrections. And when you're building the motor, this becomes another huge variable b/c now you can run a higher CR on a big turbo setup, and eliminate some of the lag.

 

If you have access to the fuel I think it makes huge sense. It's got great octane and knock resistance, cheap, makes good power, and is apparently forgiving to tune. I hope not to need lines but want Sam's drop in pump setup, a big Walbro E85 rated pump, and apparently ID1300s. That's not too bad to start with. Rails, lines, and a second pump in the tank would be the next step up. I do wonder what E85 will do to the octopus in the tank. Any upgrades for those plastic lines?