Garrett powermax installed
Thread Starter
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Senior User
Joined: May 2009
Posts: 462
Likes: 1
Lol!!! Dang you think that might be why I have a vibration? I've installed my turbo both times with the pipes still tightened at the manifold. Turbo just slid right in. I figured I was good to go cause everything lined up. Lol!
Yeah and as far as the hard slow starts sometimes idk yet. Checked the voltage at the batts last night and there both reading 12.7. So I'll have to check the ficm maybe tonight or tomorrow.
Yeah and as far as the hard slow starts sometimes idk yet. Checked the voltage at the batts last night and there both reading 12.7. So I'll have to check the ficm maybe tonight or tomorrow.
Senior User
Joined: Jul 2007
Posts: 233
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From: central valley, CA
Smokersteve, I ordered mine from xtreme diesel. Got for $1,189 no tax free shipping. They told me when i was ordering that there was a 6-8week back order on it.
Will post review and egt numbers once i get mine. I have a 3.5 factory down pipe no kitty and then to 4 " Gibson muffler and out. Got an egr delete kit from Diesel Customs International on Ebay for $225 that looks exactly the same as the sinister one. Excellent quality. That will probably change my EGT temps on my post turbo sensor but still expect lower reading on the pre turbo one. Waiting for turbo to install everything.
Will post review and egt numbers once i get mine. I have a 3.5 factory down pipe no kitty and then to 4 " Gibson muffler and out. Got an egr delete kit from Diesel Customs International on Ebay for $225 that looks exactly the same as the sinister one. Excellent quality. That will probably change my EGT temps on my post turbo sensor but still expect lower reading on the pre turbo one. Waiting for turbo to install everything.
Thread Starter
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Senior User
Joined: May 2009
Posts: 462
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Now that Bench posts it I think I failed to ask you IF you had released the manifold to y-pipe bolts. Don't remember and not sure it's even possible to install a turbo with them tight (I don't want to try anyway).
And still having the long crank to start???? I thought that resolved itself? Waiting on FICM voltage.
And still having the long crank to start???? I thought that resolved itself? Waiting on FICM voltage.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Lol!!! Dang you think that might be why I have a vibration? I've installed my turbo both times with the pipes still tightened at the manifold. Turbo just slid right in. I figured I was good to go cause everything lined up. Lol!
Yeah and as far as the hard slow starts sometimes idk yet. Checked the voltage at the batts last night and there both reading 12.7. So I'll have to check the ficm maybe tonight or tomorrow.
Yeah and as far as the hard slow starts sometimes idk yet. Checked the voltage at the batts last night and there both reading 12.7. So I'll have to check the ficm maybe tonight or tomorrow.
Have you had your batteries load tested, although it seems the FICM voltage would drop if you had one bad. Maybe not.
One more thing to try.......wait an extra few seconds after the glowplug light goes out to crank it and see it that makes a difference.
Thread Starter
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Senior User
Joined: May 2009
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Some folks are just "lucky" I guess. I can't ever get the turbo to y-pipe flanges to line up right and seal off without loosening the y-pipe so I just do it by habit.
Have you had your batteries load tested, although it seems the FICM voltage would drop if you had one bad. Maybe not.
One more thing to try.......wait an extra few seconds after the glowplug light goes out to crank it and see it that makes a difference.
Have you had your batteries load tested, although it seems the FICM voltage would drop if you had one bad. Maybe not.
One more thing to try.......wait an extra few seconds after the glowplug light goes out to crank it and see it that makes a difference.
Posting Guru
Joined: Jun 2009
Posts: 1,373
Likes: 0
From: Anderson, SC
I'm confused about a lot of this Powermax turbo business. It's advertised to have less "turbo lag" than the stock and its supposed to spool quicker, but I've seen 1 or 2 people say it spools slower than stock. About how much power does it add overall? Also, River City Diesel has a modified Powermax that has a 68mm compressor wheel rather than the regular 65mm that the Powermax comes with. But will that small of a difference perform well enough to justify spending $800 more?!?
Post Fiend
Joined: Oct 2005
Posts: 10,626
Likes: 7
From: Plano TX and Brentwood TN
The only thing that I can think of for those that have experience lag compared to the majority of others is that maybe they didn't have that tight of housing. Tighter housing might help compress the air and spool a bigger wheel compared to the same turbo with a bigger housing.
I don't know for sure, that's just my spitballing here.
I don't know for sure, that's just my spitballing here.
Post Fiend
Joined: Nov 2006
Posts: 6,648
Likes: 1
From: CT
You will need to get updated tunes for the powermax to help with the lag.
Mine was about the same as stock with the new tunes.
I also get my FICM tuned from PHP and that helped a lot with turbo lag, it is almost like a gasser now, and Ipicked up about 1-1 1/2 mpg.
I would guess it added about 50-60HP.
And it sounds SOOOOOOOO sweet.
Mine was about the same as stock with the new tunes.
I also get my FICM tuned from PHP and that helped a lot with turbo lag, it is almost like a gasser now, and Ipicked up about 1-1 1/2 mpg.
I would guess it added about 50-60HP.
And it sounds SOOOOOOOO sweet.
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Posting Guru
Joined: Jun 2009
Posts: 1,373
Likes: 0
From: Anderson, SC
You will need to get updated tunes for the powermax to help with the lag.
Mine was about the same as stock with the new tunes.
I also get my FICM tuned from PHP and that helped a lot with turbo lag, it is almost like a gasser now, and Ipicked up about 1-1 1/2 mpg.
I would guess it added about 50-60HP.
And it sounds SOOOOOOOO sweet.
Mine was about the same as stock with the new tunes.
I also get my FICM tuned from PHP and that helped a lot with turbo lag, it is almost like a gasser now, and Ipicked up about 1-1 1/2 mpg.
I would guess it added about 50-60HP.
And it sounds SOOOOOOOO sweet.
Post Fiend
Joined: Nov 2006
Posts: 6,648
Likes: 1
From: CT
You should not have to much lag.
I think ether you need to try and clean it again or get a new turbo.
The powermax was a great upgrade to my truck do to the daily weight of 12,000 lbs.
It has really helped with the EGT's, I used to be able to get them up to 1500* pretty quick and now I have to try to get them up to 1300*.
I think ether you need to try and clean it again or get a new turbo.
The powermax was a great upgrade to my truck do to the daily weight of 12,000 lbs.
It has really helped with the EGT's, I used to be able to get them up to 1500* pretty quick and now I have to try to get them up to 1300*.
