Injector data request: FAST 85 lb/hr #30857

[bikewiz]

I'm trying to get my first tune going and these injectors are killing me. Right now I used the injector data for stock 2010 Camaro SS LS3 injectors, the Bosch "051" injector. I then scaled the flow rates to equal 85 lb/hr @ 58psi. This setup is not working well. The car runs like garbage and is being difficult to tune. Every where I turn, I keep hearing "you need the correct injector data". This makes total sense to me, but to my knowledge, this data doesn't exist.

So I am asking/begging: those of you who have tuned a car with these injectors, can you share the injector data you used? I'd hate to give up and buy different injectors.

Thanks!

[granatl]

I use these injectors in my 2010 Camaro with E85. I'd be happy to share with you provided that you understand that my own car is the only one I've ever tuned with HP Tuners (i.e., there may be some funky things). I did not get a chance to do the fine tuning on a dyno though, but will in a couple of months. Do you still want me to share?

[bikewiz]

Sure. Would love to see your approach.

As of yesterday I tried published injector data from another company's similar sized injector and scaled their flow rate table to equal 85 lb/hr @ 58 psi. The results were great and the car is running better than ever, although this data is not totally correct.

[granatl]

Which tables do you want exported?

[bikewiz]

Flow Rate vs. Press
Offset vs. Press vs. IGNV
Short Pulse Adder
Short Pulse Limit
Min Injector Pulse

Thanks!

[granatl]

Short Pulse Limit: 2.000 msec

FlowRatevsPress.txt
InjOffsetvsIGNV.txt
MinInjPulse.txt
ShortPulseAdder.txt

[bikewiz]

So it looks like you left the Offset and short pulse adder the same as stock, cut the short pulse limit in half, scaled the flow rate up to 81.2lb/hr @58psi, and reduced the min injector pulse by about 43%. That about right?

[Brandoneaves]

I think if they are the fast precision flows that fast actually buys their injectors from deatschwerks, (baised off the FAST 65LB) they look the same and they both have the random number on the sides except fast looks as if they just print there logo on it.

[ALLR1SE]

These are my values im using for my Fast 85. I may end up going with deatschwerks just so i have a better injector.
Also my flow rates are scaled 50% due to my gto pcm
4.00 Short Pulse limit

[bikewiz]

Thanks for contributing!

[eficalibrator]

Redrilled injectors again? ARE WE STILL DOING THIS?

[bikewiz]

Greg, thanks for the reply to my thread and my PM.

That is a great publication and a great read with a lot of good info. Really wish I could have read it before I bought FAST injectors :-(

Thanks for your contributions to the performance community!

[DSteck]

Redrilled injectors again? ARE WE STILL DOING THIS?

But (insert some guy) on LS1tech said they work better than stock.

[rynez06]

I was forced to use deatschworks 65lb injectors on a 2010 Camaro last week. I went ahead and used their data from there website and was pleasantly surprised. the car actually didn't drive that bad. that being said when I have used the same injector without data before, its like pulling teeth, and the mileage and overall feel of the car was crap.

[LSxpwrdZ]

I refuse to tune cars anymore running the newer "re-drilled" FAST Injectors. I make them put in some non-drilled versions or send them down the road.

[rynez06]

I normally do the same, but it was one of those marketing things for powertv.... I couldn't say no.... got lucky this time...

[LSxpwrdZ]

I've not had one style repeat results from car to car. They all need their own hacked data to make a car run right. If you look at the tips on those injectors I swear I think they took a $99 De-Walt and some Kobalt drill bits from Lowes and went to town on them.

[ALLR1SE]

let me know what values work the best for your setup. I may have to copy your injector data if it works better than mine.

[bikewiz]

Once I find the data that works best for me, I will share it. Cold temps here in the Chicago area have been keeping me from going further on the tune, especially since I run E85. I have been playing around with published injector data from similar injectors and, so far, its going well.

[ALLR1SE]

Yup im running E85 here also. Have you played around with that data yet?