First logs in 2nd and 3rd gear.

[dj_lethrow]

2nd gear pull

RPM Knock Tima

3968 7 22

4500 12 9

4875 11 10

5312 11 10

5593 10 10

5875 9 11

6187 9 14

6468 8 14

6718 7 13

7000 7 12

7218 6 11




3rd gear pull

RPM Knock Tima

2593 5 25

2718 12 23

2843 11 20

2937 11 23

3500 5 9

3906 11 12

4125 10 11

4281 17 9

4500 16 8

4687 15 7

4812 14 8

5000 14 9

5125 13 9

5375 12 10

5656 10 10

5875 9 12

5968 8 12

6093 8 13

6250 7 12

6343 6 14

6437 5 14

6500 5 12

6562 4 13

6625 4 14

6812 2 13

6843 3 14




These are some first logs... if someone could take a look and see whats going on with the motor and how to fix that knock would be great. Thanx

 

[blue1]

What are your o2's

 

[power=dsm]

ur running alittle lean give it more fuel or turn down the boost to get rid of the knock

 

[dj_lethrow]

I have not installed my SAFC2, Aeromotive FPR, walbro 255 fuel pump or my 650cc injectors. Next week I am going to install the FPR and safc2.. by installing the FPR could I richen it up by doing that and turning up the pressure a little or should I use the SAFC2 for that. I am still really new to the safc2 and not totally sure how to work it, but do have some knowledge on it. If anyone has any advice that would be great.

 

[herostar]

I would keep you FPR at stock pressure, and use the safc to tune it once you get your injectors in there.

 

[dj_lethrow]

I am afraid if I install the 650's in my car it will run really rich.... I have herd from some people to leave the injectors out till I get a bigger turbo. Will I be able correct the fuel so it runs just right without having a bigger turbo?

 

[dj_lethrow]

I just got my aeromotive fuel pressure regulator installed. Would it be possible to turn up the pressure a little to lets say 40psi? I wondering if I do that will it give it more fuel so it doesn't run so lean.

 

[herostar]

it would be fine to run a little more fuel pressure, and I'm sure you'd have no problems with 40psi

 

[dj_lethrow]

I turned up the fuel pressure to 40psi and now its having problems starting.... takes a while for it to fire up... could it be it's flooding itself? Iam not sure what it is... could be the battery, alternator, or starter.

 

[temfate]

I turned up the fuel pressure to 40psi and now its having problems starting.... takes a while for it to fire up... could it be it's flooding itself? Iam not sure what it is... could be the battery, alternator, or starter.

Once the AFPR is on you'll notice it bleeds off the fuel pressure while the cars not running. You have to turn it once and hold for a second or two. Then do it again, and give it some gas while starting. I personally run a 1g with 40psi base pressure now also. Honestly, looking at my fuel trims it's still WAY lean... The 1g is just lean to begin with... You should have no problems bringing the FP up to maybe 42psi... Hook up your logger and verify your fuel trims after doing so though...

 

[BrokenTsi]

i run 650's on a 14b. I set the dial on the maft and I correct with SAFC. I logged the other day and saw that i am maxing out my injectors because I am running super rich. So i bumped up the fuel pressure to 45psi and leaned out the safc and now I am running a much lower duty cycle.

 

[dj_lethrow]

Good deal. I am going to try and get my fuel pump, injectors and safc2 installed pretty soon and hopefully that fixes most of the knock.

 

[lowridin2g]

that looks terribly lean just by al the knock and the tiny amount of timing advance youre getting. if u want to call it timing advance