Help with inconsistency

Mark Yacavone · 04-26-2017, 03:14 PM

Jamie, A 4900 converter that all of a sudden goes to 6K, isn't going to last more than two runs, if that long.

Jamie4127 · 04-26-2017, 03:44 PM

Quote:

Originally Posted by Mark Yacavone

Jamie, A 4900 converter that all of a sudden goes to 6K, isn't going to last more than two runs, if that long.

I made 5 runs, maybe 6 that day when it acted up. Right after that we had it checked along with the trans and was told it was okay. Also that same week I changed my fuel sending unit and had my injectors checked thinking it was a fuel issue.

Now same converter it goes to around 5500 off the line. Its hard to say because it happens very fast and I have to shift right away or it hits the rev limiter. There has to be 10-12 runs on it right now.

Coach · 05-02-2017, 12:00 PM

Did you get a chance to run this past weekend? RPR this weekend?

Jamie4127 · 05-02-2017, 12:23 PM

Yes sir we actually went to hmp friday night. 1st pass it still ran slow but it didn't hit the rev limiter right away like before. Also the converter I tried is about 600rpm looser then mine. 2nd pass same thing but it picked a tenth in the 1/8th. It was hard to warm up the car in the pits with all the cars and the circle track was blocked off so hopefully that's why it picked up. Jeff tested for me and he said he can now make the 1-2 shift so hopefully that is the problem.

I pulled the trans/converter back out on Sunday and sent the converter out yesterday.

Mark Yacavone · 05-02-2017, 12:42 PM

What kind of computer/ management system?

Jamie4127 · 05-02-2017, 01:14 PM

All factory Mark. The person who does the tuning is about 2 /12hrs aways. I've been trying to avoid making that that drive just to have him plug it in his computer. But I will if I need too..

Mark Yacavone · 05-02-2017, 01:32 PM

Quote:

Originally Posted by Jamie4127

All factory Mark. The person who does the tuning is about 2 /12hrs aways. I've been trying to avoid making that that drive just to have him plug it in his computer. But I will if I need too..

Very well could be your problem.There are several limiters in there. Assuming he removed all the transmission programs.
Anyway, more power, more stall, and vice versa.

04-26-2017, 03:14 PM	#1
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,821 Likes: 2,915 Liked 5,133 Times in 1,957 Posts	Re: Help with inconsistency Jamie, A 4900 converter that all of a sudden goes to 6K, isn't going to last more than two runs, if that long. __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

05-02-2017, 12:00 PM	#3
Coach Junior Member Join Date: Jun 2008 Location: Houston, Texas Posts: 68 Likes: 213 Liked 2 Times in 2 Posts	Re: Help with inconsistency Did you get a chance to run this past weekend? RPR this weekend?

05-02-2017, 12:23 PM	#4
Jamie4127 Junior Member Join Date: Dec 2014 Posts: 20 Likes: 0 Liked 0 Times in 0 Posts	Re: Help with inconsistency Yes sir we actually went to hmp friday night. 1st pass it still ran slow but it didn't hit the rev limiter right away like before. Also the converter I tried is about 600rpm looser then mine. 2nd pass same thing but it picked a tenth in the 1/8th. It was hard to warm up the car in the pits with all the cars and the circle track was blocked off so hopefully that's why it picked up. Jeff tested for me and he said he can now make the 1-2 shift so hopefully that is the problem. I pulled the trans/converter back out on Sunday and sent the converter out yesterday.

05-02-2017, 12:42 PM	#5
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,821 Likes: 2,915 Liked 5,133 Times in 1,957 Posts	Re: Help with inconsistency What kind of computer/ management system? __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

05-02-2017, 01:14 PM	#6
Jamie4127 Junior Member Join Date: Dec 2014 Posts: 20 Likes: 0 Liked 0 Times in 0 Posts	Re: Help with inconsistency All factory Mark. The person who does the tuning is about 2 /12hrs aways. I've been trying to avoid making that that drive just to have him plug it in his computer. But I will if I need too..