MY99TAWS6

iTrader: (3)

I am running 80 pound siemens.I was running 60s and they worked great with greg banish data . The 80s are not running so great especially at idle.
So would like to hear from other guys running these 80s .

I still have some 120s that might go back to but they are low impedence and didn't really want the extra harness and box in my car. There are thoses super pricey injectors for like 2000? but that is seriously nuts.

Maybe I am dreaming to think can have a nice stable 14 to 1 ish idle with the 80s. Maybe rich idle and maybe bit of bog off the line is all you can expect with them.

HUNTER02SS

iTrader: (24)

Did you re-tune the VE table?

MY99TAWS6

iTrader: (3)

Playing with it but it don't seem to be working too great. Talking mainly trying to get idle to stay at 14 ish.Not too worried of course about wot ,partthrottle,etc.

HUNTER02SS

iTrader: (24)

Are you re-tuning it with a wideband? Only way to get pretty much dead nuts on is to to tune it in SD.

BLNLS1/RX7

iTrader: (2)

Are you using a driver?

MY99TAWS6

iTrader: (3)

I run 3 bar SD. I had 60s last season and they worked perfect with Gregs Dvd data. Now finding the 80s are not so great with it. Driver..no these are high impedence. I had 120s low impedence and they work good but didn't like the driver box and the extra harnessess. I am starting to think will now sell my 60s,80s, 120 s ,gregs dvd since it dont' work on the 80s apparently and just get those very pricey new high impedence that do work right.

elias_799

iTrader: (8)

how much you want for the 60's ?

jjcamaro02

iTrader: (34)

I'm running the 80 pound siemens at first the tune was rich at idle and would bog. My tuner made some adjustments and it now idles about 14 to 1. Car drives almost like stock till you put your foot in it LOL.

MY99TAWS6

iTrader: (3)

Hmm so there is hope. Just need to mess around I guess or pay someone that knows what they are doing with them.

WS6HUMMER

iTrader: (19)

Scale them, then if they dont idle stoich cut down the pressure if you have a FPR. Are you selling the 120's ? Got a friend that might be able to use them.

MY99TAWS6

iTrader: (3)

Scale them with same numbers as if had a non boost referenced reg.I have same numbers all the way across now.
And if drop fuel pressure won't I be lean up top or do I just up my ve up there?

Yes selling the 120s I think. Does he want the aem box and racetronix plug and play harness. Paid over grand for all that will let it go for 700 shipped. No miles on them just put them in car then took them out. My cam sensor was screwed and coudln't run the 120s. Fixed it but decided to run 60s to make sure problem was fixed and then got 80s. Got 120s thinking we would get e85 at some point but not looking too good for that.
I could sell box and harness and injectors separate but would want like 500 shipped. They were delphi 120s. US and canadian funds are of course almost identical now.So US funds.

So you got the 80s running good in your car??

FL-Pirate

iTrader: (11)

I just switched to the Siemens 80's so far so good with my E40 PCM (2005 GTO). I'm starting to re-tune my SD tune tomorrow.

Inspector12

iTrader: (29)

I'm running them and I don'thave any issues with them they worked great. I can run as lean as I want at idle etc... Send me a copy of your tune (HPT right?).

MY99TAWS6

iTrader: (3)

Oh to be clear Ws6hummer have aem box and racetronic plug and play harness.

2001WS6Vert

I run the Racetronix 79's (whoever makes them?) I had a poor idle even though it read 14.5 on the wideband. The other day I was going to the track and the wideband went dead so I replaced the sensor and low and behold now my idle read 11.5. I leaned her out back to 14.5 and it idles pretty damn good now. Maybe your wideband is reading incorrect.

Lonnies Performance

iTrader: (16)

What you need is good tuning, those "pricey" injectors will work no better than what you already have.

No reason the 80's will not idle perfectly in your car.

MY99TAWS6

iTrader: (3)

Well good to hear Lonnie and from few other guys that the 80s can work ok. Main point is spend 300 bucks on Gregs dvd to get the right data and that data did seem to work well on the 60s. But plan was always to run 80s or bigger. The 120 low impedence did work ok for brief time that was running them. The converter box is not that big a deal to have in the car but that harness is annoying.If could have standalone then of course wouldn't need box or harness but don' really want standalone either. Just trying to keep things simple.

blk00ss

iTrader: (66)

I run 80's in mine. It took a while to get rid of the part throttle stumble and bog, but my buddy did great and it drives almost perfect now!

MY99TAWS6

iTrader: (3)

More playing on the 99 tuning but not really getting anywhere don't think. Tried several things. Not necessarily at same time.

I dialed up ifr across the table to 93 and then 97 from 89. I set it same as have boost referenced reg that seems to be working fine. Its 58 line off. Drops down when you reconnect line.

I didn't play with fuel pressure. I lowered ve in idle range didn't seem to change the short term much really. I lowered pulse widths trying .8 and then went back to 1.1 .

Also this is weird the car for awhile was doing great in gear hitting 14ish and had o2s cycling good and while trims were high and did turn long term back on at least it was staying in proper afr. Then put car in park and it quickly starts loading up , o2s slow down and stop cycling and afr goes of course richer and richer getting to like 12ish.
So played with idle airflow putting table from gear into table from park. Figured that should do it but then after a few minutes it seemed the idle in gear starting going richer ! o2s started to slow down again. What the hell is up with this car?
My o2s are pretty new densos maybe 3000 or so miles. Wideband pretty sure its working right.
Nothing is making any sense here. I heard it trims go way positive indicating lean its usually a vacuum leak problem or fuel problem, pump, injector clogged. But mine is opposite.I don't think any injectors are stuck they all seem to be making noise and feel them clicking when touch them. So don't think they are flooding.not sure what else could be making it so rich possibly turbos ar fubar and not letting air thru?? They were boosting fine thought just day ago. And not seeing huge clouds or hearing big screeching noises from them .

Racetronix

iTrader: (2)

At the end of the day you would have been MUCH better off running low-z injectors and simply downsizing your 120's. Mo matter how you slice it the high-z high-flow injectors will not perform as well as their low-z counterparts.