1650cc injector and pump/e85 question

[asshanson]

I recently traded my old 1600s out for the new bluemax 1350s. Cold startup is about the same but not too bad if it's above zero outside. If you're just going to use a single pump the 1350s will outflow one which is why I downgraded, the part throttle hesitation on the 1600s got annoying (even with e85, can't imagine how much worse it would be on pump).

There is no way I'd run these on pump gas for a daily driver though.

[sleepydsm]

we'll see how it works this spring!

[Archertsi]

I currentley have 1600's for e85, Idles at about 1000 rpms, But here and there at idle, the afrs go a little crazy and the car revs up and down a bit. No boost leaks, correct fuel pressure, etc, yadda yadda yadda. They actually run great on the freeway, no cutting out or bogging after I got my trims dialed in.

But, this spring i may upgrade to the bluemax 1650's so I can hopefully lower the idle and get it to idle smoother. I also see they have 1850's, and i thought 1650's were over board.

I really doubt either injector could run regular pump, but then again, nobody will know until someone trys it.

[asshanson]

I remember a guy on link trying them out before he switched to e85 and he said he felt like he was pulling a huge trailer on the freeway, constant hesitation/bucking because the AFRs would go 13:1 then 18:1 and back.

[Andrew7dg]

If you have an ajustable FPR just lower the base pressure a bit (instead of 43psi which is stock I believe). They should just work out fine for you on E85.

[sleepydsm]

I am not concerned how they will work with E85.

I was/am concerned how they will work if I use pump gas. I was planning on just getting a rough tune with pump while I learn a lot about tuning and DSMLink. Then I was gonna switch over to E85 when I was more comfortable with it. Or I could just fill it up with e85 and bring it to the dyno. But I wanna try tuning it myself.

[Archertsi]

I think you will find that it may be easier to tune the e85 over 91 pump. 1600's are MUCH friendlier with E85 than with 91. I set my global and dead time according to some threads I read on the link forums, installed the 1600's, filled up with E85 and she fired up, idled and ran decent with a little bit of back firing. Did some adjusting to correct the trims and the car ran great.

Pump, IMO, is gunna require more tuning before the car will even really be driveable. So if you have allot to learn about link still, I would reccomend starting your tuning with E85. Plus E85 doesnt detonate as quickley as 91 pump, so it gives you a safer fuel to learn how to tune with.

[4g63tcrazy]

^^Very very true. I would start off with E85 just for the safety factor.

[sleepydsm]

Ok, sounds like a plan. I've got over half a tank of premium, should i just drain the shit, and bring some e85 over once the car is in running condition?

[4g63tcrazy]

Thats what I did once I converted over. Save the gas for a lawn mower or something haha.