Losing boost at 6400rpm. Help!
- Thread starter suprahero
- Start date
On the Cam timing I'd only go 2 degrees at a time and verify if there's any change.
If you make too many changes at a time you're not going to know what fixed it.
If you make too many changes at a time you're not going to know what fixed it.
If changing your cam timing, verify with a timing light that your ignition timing is still correct. It will change when you adjust the cams.
gtsfirefighter
SM Expert on White trash
Actually I got it today John. I also changed my exhaust cam to +4 and it didn't change anything. I also realized why I thought that my exhaust was retarded eight degrees and that's because it was. I posted +8, but I know which way my cams were moved and it was definately retarded. I've now got the exhaust cam set to four degrees retarded, but I haven't did a datalog yet. I hope to get to do one tomorrow, but I can't promise yet. Hopefully I'll get through with work in time to do it though. I would like to take it down the highway and do a couple pulls so I don't get arrested or blackballed by my neighbors. I'll be sure and post up the results. Thanks for the help.
I really doubt that the cam timing is the cause of your boost loss issues, unless theres so much overlap the turbos blowing freely into the exhaust.
It's one of the few things I can think of that I haven't tried yet Justin, so I have to give it a shot. I still have to try it without the exhaust, but I did the exhaust myself and I know there isn't anything in it to stop flow. Straight 3" pipes with no cats all the way to a magnaflow muffler.
Can adjustable cam gears be adjusted so much that you get overlap? I ask this because it makes an EGR affect and may actualy make it pass emissions that way. That and I would like to try a set of gears but if it doesn't do this I dont want to waste my money on them.
I'm hoping that they can Rob. Mine can be adjusted pretty far either direction so I would think they're would definately be some overlap.
Hopefully it doesn't rain today and I can try some adjusting. My dyno shop is closed for a few months while he relocates, so I can't adjust them there.
Hopefully it doesn't rain today and I can try some adjusting. My dyno shop is closed for a few months while he relocates, so I can't adjust them there.
^Is Blake moving the operation to Mobile? Please?Please? How bout just somewhere south of where he is now.
I looked back at some of my older data logs and something is totally different.
Right now, I don't see 17psi until 6287 rpm. On my first 2jz dl before I blew it up, I was seeing 17.694 @ 4512 rpm and on another run I got 17.913 @ 4486rpm. I wish I had another T3 turbo to try, but I dont. I wish I had a shop I could take it to and just tell them to fix it, but I don't have that luxury living over here in Camarostangville.
Right now, I don't see 17psi until 6287 rpm. On my first 2jz dl before I blew it up, I was seeing 17.694 @ 4512 rpm and on another run I got 17.913 @ 4486rpm. I wish I had another T3 turbo to try, but I dont. I wish I had a shop I could take it to and just tell them to fix it, but I don't have that luxury living over here in Camarostangville.
Have you done this yet?
Followed by this...in 2 deg increments per what IJ suggested?
IJ.;1121720 said:
Followed by this...in 2 deg increments per what IJ suggested?
jdub;1121944 said:
Jay, does Keylan maybe have one laying around waiting on his swap you could borrow? I haven't seen his thread in a while, at his pace the swap may have already been done.