MM Turbo upgrade 3071 or 3076 or ???
11-28-2009, 10:43 AM
#76
U-Stink-But-I-♥-U
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Yeah, I heard from shadow1 about your build and he mentioned something about the ports. 
IDK, I have been an owner of a 3071 for quite a while now, I just dont have possession of it. You may understand... I have two engines invested now to make one, and the build has started. It will be a race to see who can get it in their car first, break it in and tune it, and get it on the dyno. If everything goes well, I am hoping to be done by mid-spring. If it goes well, we might make an interesting competition out of it.
If you are not being too secretive about what is going into yours, or have posted what you are doing already, let me know. I will happily divulge in kind.
IDK, I have been an owner of a 3071 for quite a while now, I just dont have possession of it. You may understand... I have two engines invested now to make one, and the build has started. It will be a race to see who can get it in their car first, break it in and tune it, and get it on the dyno. If everything goes well, I am hoping to be done by mid-spring. If it goes well, we might make an interesting competition out of it.
If you are not being too secretive about what is going into yours, or have posted what you are doing already, let me know. I will happily divulge in kind.
11-28-2009, 11:12 AM
#77
Life begins @ 30 psi
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Nothing secretive, the new motor is being built by Brian at BDC in TX. It's fully bridgeported with light exhaust/intake porting, dowel pinned, and I'm still settling on apex seals but will probably be using the Esmeril seals. I'll be upgrading the clutch to the BHR/SPEC Stage 2+ carbon/kevlar clutch. Then the boost gets pushed and we'll see if I can reach "double baller" status.
11-28-2009, 11:27 AM
#78
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Sounds good.
I haven't settled on the details, but this is the working idea:
Being built by KD rotary
Cryo treated side and apex seals (MS side seals)
port and polish (no bridge)
potentially lightening the rotors, balencing the rotating parts and cryotreating internals.
Studded.
As for fly and clutch, I would like to have a lighter fly than what I have now (RB), but would like to stick with the centerforce pp. Not sure about the clutch itself. I am waffling between the semipucked clutch with a sprung center that I have now or a full puck solid hub.
I am sure that this can be done in a month or, at most, two.
I will be doing the engine pull myself, which might be an issue if it were not for the fact that I will have lots of help.
I haven't settled on the details, but this is the working idea:
Being built by KD rotary
Cryo treated side and apex seals (MS side seals)
port and polish (no bridge)
potentially lightening the rotors, balencing the rotating parts and cryotreating internals.
Studded.
As for fly and clutch, I would like to have a lighter fly than what I have now (RB), but would like to stick with the centerforce pp. Not sure about the clutch itself. I am waffling between the semipucked clutch with a sprung center that I have now or a full puck solid hub.
I am sure that this can be done in a month or, at most, two.
I will be doing the engine pull myself, which might be an issue if it were not for the fact that I will have lots of help.
Last edited by carbonRX8; 11-28-2009 at 01:56 PM.
11-28-2009, 11:36 AM
#79
Join the club - my engine is being re-built now as well :
Port polish (done by me - what a PIA that is )
Esmeril seals
Stress relief of dowel pin area
Change around the injectors a bit
Might stick the Greddy IC back in
Then settle back with around 300-310whp and leave it alone for a while
later (when my wife has forgotten how much I spent on the rebuild) I'll get a new turbo and better supporting mods and start crnking it up again
Port polish (done by me - what a PIA that is )
Esmeril seals
Stress relief of dowel pin area
Change around the injectors a bit
Might stick the Greddy IC back in
Then settle back with around 300-310whp and leave it alone for a while
later (when my wife has forgotten how much I spent on the rebuild) I'll get a new turbo and better supporting mods and start crnking it up again
Last edited by Brettus; 11-28-2009 at 11:43 AM.
11-28-2009, 03:39 PM
#80
I divide by zero
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11-28-2009, 04:24 PM
#81
Nothing secretive, the new motor is being built by Brian at BDC in TX. It's fully bridgeported with light exhaust/intake porting, dowel pinned, and I'm still settling on apex seals but will probably be using the Esmeril seals. I'll be upgrading the clutch to the BHR/SPEC Stage 2+ carbon/kevlar clutch. Then the boost gets pushed and we'll see if I can reach "double baller" status.
I think you should be able to hit Double Baller Status...
I wish I had the cash to get a spare motor and rebuild/ported by BDC. If my motor pops that's who I'm going to. But right now I'm busy saving for a complete E85 fuel system swap
11-29-2009, 01:00 AM
#85
As for fly and clutch, I would like to have a lighter fly than what I have now (RB), but would like to stick with the centerforce pp. Not sure about the clutch itself. I am waffling between the semipucked clutch with a sprung center that I have now or a full puck solid hub.
they are awesome.
11-29-2009, 05:05 AM
#86
Can\Will some of the newly bridgeported guys care to do some thorough tests about that kind of porting? We don't yet know if there's a real difference with a bridgeport since Chris changed a lot of things at the same time. Some flow vs boost comparison for the 2 configurations would be something, even if they'd still be the tip of the iceberg.
I'm not sure i would want a 4puck in my transmission. Our fragile transmission is already stressed by the higher torque a turbo produces, adding extra "shocks" because of the more aggressive contact may increase wear.
I'm not sure i would want a 4puck in my transmission. Our fragile transmission is already stressed by the higher torque a turbo produces, adding extra "shocks" because of the more aggressive contact may increase wear.
11-29-2009, 01:38 PM
#87
Life begins @ 30 psi
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Can\Will some of the newly bridgeported guys care to do some thorough tests about that kind of porting? We don't yet know if there's a real difference with a bridgeport since Chris changed a lot of things at the same time. Some flow vs boost comparison for the 2 configurations would be something, even if they'd still be the tip of the iceberg.
If I do re-dyno on this motor it will be ~11 psi and I'll try to get flow vs. boost info. That being said, I'm really not sure I'm going to bother re-dynoing with this motor. It depends on some other things I have in the works.
I'm taking my time with the new motor though, so its possible some of you other guys will have your new motors before I get mine put in.
11-29-2009, 02:06 PM
#88
After doing a bit of porting myself and having a good look at it - to me it seems that intake bridge porting is not going to yield much . We need to do something with the siamese exhaust port to make it flow better . What , I have no idea but it is pretty obvious that that is where the restriction is .
11-29-2009, 02:14 PM
#89
After doing a bit of porting myself and having a good look at it - to me it seems that intake bridge porting is not going to yield much . We need to do something with the siamese exhaust port to make it flow better . What , I have no idea but it is pretty obvious that that is where the restriction is .
11-29-2009, 02:15 PM
#90
.
If I do re-dyno on this motor it will be ~11 psi and I'll try to get flow vs. boost info. That being said, I'm really not sure I'm going to bother re-dynoing with this motor. It depends on some other things I have in the works.
I'm taking my time with the new motor though, so its possible some of you other guys will have your new motors before I get mine put in.
If I do re-dyno on this motor it will be ~11 psi and I'll try to get flow vs. boost info. That being said, I'm really not sure I'm going to bother re-dynoing with this motor. It depends on some other things I have in the works.
I'm taking my time with the new motor though, so its possible some of you other guys will have your new motors before I get mine put in.
Otherwise we'll probably never know how useful it is to spend the money on a bridgeport setup.
After doing a bit of porting myself and having a good look at it - to me it seems that intake bridge porting is not going to yield much . We need to do something with the siamese exhaust port to make it flow better . What , I have no idea but it is pretty obvious that that is where the restriction is .
The fact is that, apparently, there's not enough space to modify it, even with modified exhaust sleeves.
Is anybody thinking about a solution at the moment?
11-29-2009, 02:22 PM
#91
That's what I did ,unintentionally, when it melted and broke off . Car was running sweet . But I'm not really sure how it affected flow or the side seals .....
Anyone seen a renesis on an engine dyno ? Pretty sure the centre port is the one that heats up the most ...
Anyone seen a renesis on an engine dyno ? Pretty sure the centre port is the one that heats up the most ...
05-23-2010, 05:27 PM
#95
MM
How about giving us some thoughts on your 3082 upgrade .
IE spool up rpm ?
was it just a case of machining the housing out etc etc ?
I presume you also tried the 3076 at some stage so some feed back on that would be great as well .....
How about giving us some thoughts on your 3082 upgrade .
IE spool up rpm ?
was it just a case of machining the housing out etc etc ?
I presume you also tried the 3076 at some stage so some feed back on that would be great as well .....
Last edited by Brettus; 05-23-2010 at 05:31 PM.
05-23-2010, 05:52 PM
#99
Hey MM . I appreciate your responses but it does kinda feel like pulling teeth LOL .
Sounds like you have done some jiggery pokery to get it in there and don't want to let on - that's fine . I was just curious.
I'm picking you make well over 400whp now - how can I convince you to show us your dyno ?
Sounds like you have done some jiggery pokery to get it in there and don't want to let on - that's fine . I was just curious.
I'm picking you make well over 400whp now - how can I convince you to show us your dyno ?