"inj flow rate in grams/sec"

That^^ is what I'm trying to adjust in my bin file to help me with my new 30lb injectors. I'm getting white smoke on acceleration and feeling the car pull back at higher rpm. Here is what it is set at right now in winbin....
inj flow rate in grams/sec
Raw Hex
1DD [up/down] 2.89

What does the 1DD mean? It changes with the number when I go up or down. Also to add fuel do I go up with the number or down? Thanks

[This message has been edited by MATEOZ28 (edited August 09, 2001).]

 

Well, if it is x '1DD, that equates to Decimal 477.

There are a number of ways the factors and constants are calculated based on a particular algorithym. Some are standard from ECM to ECM, some are unique.

But I need to know your more about your setup first...you don't mention what it is.

 

I have a 1991 Z28 w/383. Everything is extensivly modified. Please help, I dont have any idea what they are or how to effectivly change anything without screwing it up.

 

How does 1DD equate to .477?

 

If you have windoze, go to programs/accesories/calculator. Open the calc. and go to view, set it to scientific. Set it to decimal, write in a value then set it to hex. Voila, you now have the conversion. I wouldn't worry about what hex is unless you plan on doing something that your editor can't. At least I'm not going to worry about it because the only thing I know how to do is "point and click".


[This message has been edited by hectorsn (edited August 09, 2001).]

[This message has been edited by hectorsn (edited August 09, 2001).]

 

Thanks, I do appreciate the fast response.


Also, what would be an ideal setting for 30lb SVO injectors? what else should I change?

One of my worse problems right now is I'm getting a code 42. My tachometer is not working and my car runs like crap. Can the ESC module cause these symptoms? Thanks....

 

and if its 477 why does it read 2.89? Or do I just not need to care about the 1DD? Just pay attention to the number on the right *2.89*???

Thanks

 

Mateo, you need to tell us what editor you are using. Tunercat, Winbin, etc.

In Tunercat you just change the injector size to 30. There is no need to edit hex for injector sizing.

If you have Winbin, the injector sizing doesn't work correctly. Least not for me.

 

I took so long to edit the message I figured I would write a seperate post. To try and answer your question about what to put in for the inj flow rate. I hope this is right as I am just using some simple math here. Anyhow, there are roughly 28 grams in an ounce and 16 ounces in a pound. There are 60 seconds in a minute and 60 minutes in an hour. Yadda, yadda , yadda... to get g/s to lb/hr multiply times 8.035. To get lb/hr to g/s divide by 8.035. Please, someone correct me if I'm wrong. To add to the confusion I have seen the inj flow rate expressed as seconds per gram and not grams per second which I would guess is not the same thing. I would think a lower number would equal greater flow. I don't know.

 

I'm sorry, I'm using winbin

"To get g/s to lb/hr multiply times 8.035. To get lb/hr to g/s divide by 8.035. Please, someone correct me if I'm wrong. To add to the confusion I have seen the inj flow rate expressed as seconds per gram and not grams per second which I would guess is not the same thing. I would think a lower number would equal greater flow. I don't know."

so g/s means...... gallons per second?
and lb/hr is pound per hour right?

I'm sooooooo confused. I do appologize for my severe incompetance on this subject but I do appreciate the help

[This message has been edited by MATEOZ28 (edited August 09, 2001).]

 

Yes, don't pay attention to what the decimal number translates to in hex. Just pay attention to the 2.89 or whatever. This is the grams per second flow of the injector.

 

So does a bad ESC module cause bad performance?

 

I assumed you have a SD 730 ecm (90Z28) but now I realize you could have a TBI ecm. If you do have a 730 the esc is in the calpack I believe. I'm not sure on the TBI ecm of 91 but the older ones had the esc module outside. If it is bad I don't think it causes bad performance but it renders the knock detection useless. Now if it's a est problem then it may cause bad performance as it's having a problem controlling timing.

 

I have a TPI Z28.

I thought it was that thing inside of my distributer? Code 42 is talking about my spark control module right?

 

I don't know what the code you have is exactly. EST is spark timing. It involves the module inside the dist. A code can be set by unplugging the EST bypass connector to set/read base timing at idle or because of prolonged cranking without a start. If it is set because there is actually something wrong in the EST at the moment then you will have poor performance as you don't have ECM assisted timing. ESC is knock control, and not to be confused with EST. A code can be set if there is something wrong in the knock sensor circuit. That module is inside the calpack next to the PROM in your particular ecm. If by chance you messed it up when you desoldered the prom, this could be the reason for the code. I don't believe it will cause poor performance, just lack of knock control.

 

What computer are you running in your car? The 165 or 730?

Yes I spose the EST module could fail(730 is on the memcal and the 165 is a seperate module out under the hood). But I'd you will be needing a HIGHLY modified chip to fix the problem.

Brendan

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1987 IROC-Z L98,SR,EB 6085's,LPE 219/219 SR Cam, Crane 1.6RR, EB TPI Base, 58mm TB, Stock T5, 30lb SVO, AFPR, K&N, EB TES, Catco Cat, 3" Borla Cat-Back, Accel cap,rotor,distro/other crap, Aluminum DS, 94 Disk Rear, Adjustable Prop Valve, Precision 3.73 Gears, Weld in Sub-Frame Connectors, Hotchkis LCA's, KYB Shocks/Struts, Poly Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm, Big stereo, 730SD Conversion.

To see the ROC, Check out the webpage Here

 

I have a 1991 Z28 TPI 1227730 ECM Speed Density. What do you mean by "highly modified chip to fix the problem"? Be more specific, I dont understand what you infer could be the problem.



[This message has been edited by MATEOZ28 (edited August 10, 2001).]