Guidance for an LS6 with S/C and 1200cc startup

[Jonas1979]

Helping a friend fire up the engine on the bench before it's going down in the chassis.

5.7 LS6
Custom LS harness
Kenny Bell - Blower 3.6 , 14psi (mammoth)
120pph Holley Fuel Injectors 522-128 Now changed to 750s
TB 102mm
Shorty headers
Std cam / Z06
ECU from Gm avalanche 1500 5.3 2002 - GM P01 (I must put a ?? here because they took what they had as it seems)
Maf 3.5" - AF10056
ACDelco GM Manifold Absolute Pressure Sensors 19418810
Lambda?s disabled for now

Looking for someone who is able to assist me in getting it to run well with a base file. Might need to change the ECU out if there are limitations for this.
Send me a dm for collab

Tnx

[DrLoch]

Holley Injectors???? Read some of the posts about using those, you aren't going to get much help, if any.

[SiriusC1024]

I'll give it a shot. Post your tune.

[Jonas1979]

I did some read up, and these are going...first BCS they are low impedance ( I didn't know this at first) so we are changing them to high impedance and less cc since the goal here isn't max power. It's more about show than go!

[gtstorey]

Make sure that you get injections that have full GM data. There a lot more to it than flow rate and impedance.

[Jonas1979]

Make sure that you get injections that have full GM data. There a lot more to it than flow rate and impedance.

Tell me more!?

[RDF1]

Tell me more!?

https://fuelinjectorconnection.com/collections/ls1-ls6

[Jonas1979]

https://fuelinjectorconnection.com/collections/ls1-ls6

Tnx

[gtstorey]

Tell me more!?

https://calibratedsuccess.com/media/technical-articles/

[Jonas1979]

New injectors, i didn't get any heads-up before he ordered them: https://www.speedingparts.com/p/fuel...tor-846cc.html

How about these?

I still look for help with a good start file / base file

[gtstorey]

New injectors, i didn't get any heads-up before he ordered them: https://www.speedingparts.com/p/fuel...tor-846cc.html

How about these?

I still look for help with a good start file / base file

Do they supply GM format data? If not then no. You only hope will be to see if there is a part number that will cross reference to a GM vehicle that you can pull data from and I think they are to large for that to be possible.

[Jonas1979]

So, how does everyone do with these bigger injectors and OEM ecu?

[edcmat-l1]

So, how does everyone do with these bigger injectors and OEM ecu?

Buy injectors with supplied GM format data. Pretty simple. IF they don't come with a spread sheet with copy and paste tables, you don't want them. Takes way too much effort to make mystery injectors work.

[SiriusC1024]

So, how does everyone do with these bigger injectors and OEM ecu?

https://fuelinjectorclinic.com/gmdata

https://fuelinjectorconnection.com/pages/injector-data

[Jonas1979]

Data for the new injectors https://www.rcfuelinjection.com/Port...tency_Time.pdf

Good enough to get it started and running for diagnostic purposes?

[chumba]

Data for the new injectors https://www.rcfuelinjection.com/Port...tency_Time.pdf

Good enough to get it started and running for diagnostic purposes?

No. Plenty of nice people giving you the answer in such a nice way. That didn't work. Reality, more cheap ass junk you have there with incomplete, non-sensical data for what you are attempting to do. Stop. Re-read this thread. Spend real money for a real set of injectors. Amazon, ebay, and other too good to be true deals are just that. A sucker is born every minute.

[Jonas1979]

No. Plenty of nice people giving you the answer in such a nice way. That didn't work. Reality, more cheap ass junk you have there with incomplete, non-sensical data for what you are attempting to do. Stop. Re-read this thread. Spend real money for a real set of injectors. Amazon, ebay, and other too good to be true deals are just that. A sucker is born every minute.

Chumba bumba, tnx for the nice comments

[SiriusC1024]

Lol hover over the red bars under his name.

Those injectors are spec'd in a really weird way. I was messing with the data last night and had big doubts about it. They are so high volume that accuracy of short pulse and offset is going to be really problematic. I can't get a good grasp on what they've done for short pulse because they're tracking out to 10ms before linearity. Tune only allows to 4ms.

If you can't get your money back on those injectors then a good option would be to send the injectors off to EFICalibrator to get them characterized.
https://calibratedsuccess.com/fuel-injector-test-bench/

Another would be to get some cheap Deka 60's or 80's. Sets go for $100-$200 on eBay. Here's injector data for those:
https://www.aacorvette.com/injectordatahp.html

[Jonas1979]

Lol hover over the red bars under his name.

Those injectors are spec'd in a really weird way. I was messing with the data last night and had big doubts about it. They are so high volume that accuracy of short pulse and offset is going to be really problematic. I can't get a good grasp on what they've done for short pulse because they're tracking out to 10ms before linearity. Tune only allows to 4ms.

If you can't get your money back on those injectors then a good option would be to send the injectors off to EFICalibrator to get them characterized.
https://calibratedsuccess.com/fuel-injector-test-bench/

Another would be to get some cheap Deka 60's or 80's. Sets go for $100-$200 on eBay. Here's injector data for those:
https://www.aacorvette.com/injectordatahp.html

Thanks! I appreciate it

To clarify, I know oem tuning but I'm not comfortable enough to mess around with this in hpt. And my customer pulled the trigger faster than I could say Chumba so it has been a bit of a struggle around just to get it start up and run.