JUSTINTHECOASTIE

s2000Junky

This would be the best set up. All the fuel needed without the compromise in idle/closed loop efficiency. I know this is done, but I haven't seen it on an s2k. Where do the secondary injectors plumb in? Tap each runner and thread/weld in provisions, or some other way?

JUSTINTHECOASTIE

Mijae007

ive seen the dual injector setup work on a b series once and it seemed to work out well. it was on a customized intake manifold with custom fuel rail setup. definitely a lot of custom work involved. id1700 probably keep things simple and easy to replace parts if need be. you can always go up 2000+ as well later down the road. also i believe you can achieve good drivability with the id1700.

s2000Junky

Are the ID1300cc and 450lph not enough alone to deliver the fuel for the power your going to make? You can up the fuel pressure significantly with these injectors if need to. 70/80psi no problem.

Your making 406whp now at 17psi, which is pretty low for the pressure on that blower - I guess due to very conservative tuning I understand, but is moving you to E85 going to get you over 500whp? I don't think it would unless you were to increase the pressure a fair bit more. Maybe you are, I don't know. 3.2" pulley and your technically reaching the max rated rpm for that blower at 8350rpm so anything smaller and your over spooling it. This is based on the standard 5.45 crank pulley. with the 6" crank pulley id say your already technically maxed at 8200 rpm and the current 3.4". But that hasn't stopped some from over spinning. I just wasn't comfortable doing so with my Novi 1200.

JUSTINTHECOASTIE

JUSTINTHECOASTIE

s2000Junky

In my experience, on a good injector like ID, or even the stock 360cc which are pretty tolerant ive found, the fuel pressure is rather arbitrary within a range, so sticking to stock pressure is offering no benefit, only a limitation in your case. Proper fuel atomization is the key element in running a particular pressure, and ID are specifically engineered to run a very wide effective range. I would go in with ID 1300cc, run the boost you intend to run on e85 and see what you can yield before your run out of fuel on the dyno, upping the fuel pressure incrementally. Like i said, 70/80+ static idle pressure all day long. I mean you already have a 450lph pump capable of pushing a lot of volume and pressure. From stock 43.5 vs 60-70- 80psi could make all the difference between you utilizing a normal ID1300 set up, or messing around with a two stage injector system and modding/fussing around with your manifold and added tuning complication and cost. You should be able to do the math and figure out if your going to be in the ballpark with a set cc injector at x static pressure and HP expectation before you even toy with the avenue id want to pursue first here.

06S2k07Si

ID1300x's here... 60psi base fuel pressure...Walbro 450 82% duty on E85 17-18psi of boost SOS return kit and fuel pump rewire kit. Just my experience.

JUSTINTHECOASTIE