416 N/A E85 550rhwp!
07-28-2012, 12:15 PM
#1
416 N/A E85 550rhwp! Well I finally got the car on the rollers last month and it made the power I wanted it to but there is still an issue somewhere that I can't narrow down. Here are the graphs that I got. You can clearly see that the graph that isn't smoothed out that there is an issue.
I have been told by my tuner that it is a valve spring related issue. I don't think that it is cause the heads are brand new with less than 3000 miles on them. I purchased everything from LME (heads,cam,rotating assemble, everything). I can feel it in the car it cutsout and comes back on. I can also see it on the wideband the AFR will be like 12.8 and then it shoot to 13.5ish and then comes back down.
I think it has to do with a coil or ignition somewhere. It pulls awesome to 6200 cutouts and comes back in. I want to get this figured out so I can spray this monster. The last pull is with the converter locked up. Its weird I didn't have this issue last year and the car ran a 10.51@128 all motor with a 1.47 60'.
I want to figure this out before winter so I can get my 9s pass this year!
I have been told by my tuner that it is a valve spring related issue. I don't think that it is cause the heads are brand new with less than 3000 miles on them. I purchased everything from LME (heads,cam,rotating assemble, everything). I can feel it in the car it cutsout and comes back on. I can also see it on the wideband the AFR will be like 12.8 and then it shoot to 13.5ish and then comes back down.
I think it has to do with a coil or ignition somewhere. It pulls awesome to 6200 cutouts and comes back in. I want to get this figured out so I can spray this monster. The last pull is with the converter locked up. Its weird I didn't have this issue last year and the car ran a 10.51@128 all motor with a 1.47 60'.
I want to figure this out before winter so I can get my 9s pass this year!
07-28-2012, 02:08 PM
#3
Something to look into as I had it happen last month, check the power wire from the battery to the starter. Mine would cut out like that only under full load, engine was moving enough to touch the cable and melted/shorted out on it and it would come RIGHT back
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07-29-2012, 07:12 PM
#10
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Well I finally got the car on the rollers last month and it made the power I wanted it to but there is still an issue somewhere that I can't narrow down. Here are the graphs that I got. You can clearly see that the graph that isn't smoothed out that there is an issue.
I have been told by my tuner that it is a valve spring related issue. I don't think that it is cause the heads are brand new with less than 3000 miles on them. I purchased everything from LME (heads,cam,rotating assemble, everything). I can feel it in the car it cutsout and comes back on. I can also see it on the wideband the AFR will be like 12.8 and then it shoot to 13.5ish and then comes back down.
I think it has to do with a coil or ignition somewhere. It pulls awesome to 6200 cutouts and comes back in. I want to get this figured out so I can spray this monster. The last pull is with the converter locked up. Its weird I didn't have this issue last year and the car ran a 10.51@128 all motor with a 1.47 60'.
I want to figure this out before winter so I can get my 9s pass this year!
I have been told by my tuner that it is a valve spring related issue. I don't think that it is cause the heads are brand new with less than 3000 miles on them. I purchased everything from LME (heads,cam,rotating assemble, everything). I can feel it in the car it cutsout and comes back on. I can also see it on the wideband the AFR will be like 12.8 and then it shoot to 13.5ish and then comes back down.
I think it has to do with a coil or ignition somewhere. It pulls awesome to 6200 cutouts and comes back in. I want to get this figured out so I can spray this monster. The last pull is with the converter locked up. Its weird I didn't have this issue last year and the car ran a 10.51@128 all motor with a 1.47 60'.
I want to figure this out before winter so I can get my 9s pass this year!
Get this problem fixed this car should be a TQ monster right around where it breaking up. Also is there a cutout on the car?
07-29-2012, 08:10 PM
#13
But from all the vids/threads ive seen explaining HOW and WHEN valve float occurs it would not make sense that at a higher RPM for the power to comeback.
Try googling "LS1 valvefloat".
In one of the threads i saw Damian chime in on that, when someone had a similar issue to you.
07-29-2012, 08:49 PM
#14
I'm having somewhat the same issue!! I hear it breaking up a Lil when I go 2nd to 4th under 3/4 throttle sorta speak or between shifts I feel it somewhat die out. I have ls3 coils so it's not that and I had this problem with my ls1 but that was really bad and all the time! and this is intermittent. I'm thinking a wire in the harness some where. But how do you test the wiring. Sorry to high jack bud just thought it might be the same issue. Sorry and thanks.
07-29-2012, 09:12 PM
#16
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I'm having somewhat the same issue!! I hear it breaking up a Lil when I go 2nd to 4th under 3/4 throttle sorta speak or between shifts I feel it somewhat die out. I have ls3 coils so it's not that and I had this problem with my ls1 but that was really bad and all the time! and this is intermittent. I'm thinking a wire in the harness some where. But how do you test the wiring. Sorry to high jack bud just thought it might be the same issue. Sorry and thanks.
