Mast Motorsports L92HO/6L90E Powered 1968 Short/Wide---Hot Rod Power Tour Long Hauler
#21
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The fuel cell has the outlet on the wrong end of the tank. It still works fine, it is just inconvenient to keep the truck half full of fuel. We are going to install some fuel cell foam in the tank and see how that helps our issue. I'll post them up whenever we have some results.
#23
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What vehicle did that throttle pedal come from? Would you happen to have a GM part number?
I have a (somewhat) similar project:
http://www.pacificp.com/forum/viewtopic.php?t=6034
I have a (somewhat) similar project:
http://www.pacificp.com/forum/viewtopic.php?t=6034
#24
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#25
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What vehicle did that throttle pedal come from? Would you happen to have a GM part number?
I have a (somewhat) similar project:
http://www.pacificp.com/forum/viewtopic.php?t=6034
I have a (somewhat) similar project:
http://www.pacificp.com/forum/viewtopic.php?t=6034
BTW, your swap looks really interesting. Is that your primary build thread? I would like to keep an eye on your progress.
#28
TECH Resident
Excellent build up. Congrats on this and the mastery of VVT, AND the MAST M90 ECM. That is a masterpiece. A lot of work to get that to market!
At the start of the thread you mention that the MAST ECM interworks with the TCM in the 6L80/90. Is that interworking to the same degree as i.e. a GM E38 controller?
Also with the CAN gauges, is this a MAST specific CAN, or is it compatible with current GMLAN? i.e. to work with a Dashhawk, Dashdaq, PLX devices gauges as well?
Cheers.
At the start of the thread you mention that the MAST ECM interworks with the TCM in the 6L80/90. Is that interworking to the same degree as i.e. a GM E38 controller?
Also with the CAN gauges, is this a MAST specific CAN, or is it compatible with current GMLAN? i.e. to work with a Dashhawk, Dashdaq, PLX devices gauges as well?
Cheers.
Last edited by rsz288; 08-14-2008 at 08:23 AM. Reason: Speeling....etc
#29
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We have solutions for all of the transmissions that you listed. You just have to let us know what route you want to go. 4L60/80s have different requirements than 6L80/90s.
#30
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Excellent build up. Congrats on this and the mastery of VVT, AND the MAST M90 ECM. That is a masterpiece. A lot of work to get that to market!
At the start of the thread you mention that the MAST ECM interworks with the TCM in the 6L80/90. Is that interworking to the same degree as i.e. a GM E38 controller?
Also with the CAN gauges, is this a MAST specific CAN, or is it compatible with current GMLAN? i.e. to work with a Dashhawk, Dashdaq, PLX devices gauges as well?
Cheers.
At the start of the thread you mention that the MAST ECM interworks with the TCM in the 6L80/90. Is that interworking to the same degree as i.e. a GM E38 controller?
Also with the CAN gauges, is this a MAST specific CAN, or is it compatible with current GMLAN? i.e. to work with a Dashhawk, Dashdaq, PLX devices gauges as well?
Cheers.
The gauges in this truck are SAE J1939 which is pretty standard in other applications. We are working on making our controller run GM stock factory gauges. (GMLAN) Once we do this, I don't see any reason why it wouldn't run the aftermarket devices that you listed.
#31
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Cooling System Installation
The cooling system was pieced together out of relatively inexpensive components but still yielded excellent results. The radiator is a Jegs universal fit (555-52009) with Summit fans (SUM-G4852). The bottom of the radiator sits factory heavy duty radiator mounting brackets and pads that are welded to the core support. We had some aluminum bent at a local sheet metal shop to attach the fans and radiator to the core support. The aluminum plate bolts to the core support and to some bungs that were welded to the top of the radiator. When bolted together the fans are trapped in and don’t move at all. The fans are wired directly into the Mast Motorsports Engine Harness, no other fan relays are required!!!
The lower hose is NAPA P/N: 8025, while the upper hose is a Gates P/N: 22436. If we had it to do over again we would try a Jeg’s double pass radiator (555-52039). This would put both the inlet and outlet on the passenger side and eliminate the upper hose from having to go all the way across the vehicle.
The cooling system was pieced together out of relatively inexpensive components but still yielded excellent results. The radiator is a Jegs universal fit (555-52009) with Summit fans (SUM-G4852). The bottom of the radiator sits factory heavy duty radiator mounting brackets and pads that are welded to the core support. We had some aluminum bent at a local sheet metal shop to attach the fans and radiator to the core support. The aluminum plate bolts to the core support and to some bungs that were welded to the top of the radiator. When bolted together the fans are trapped in and don’t move at all. The fans are wired directly into the Mast Motorsports Engine Harness, no other fan relays are required!!!
The lower hose is NAPA P/N: 8025, while the upper hose is a Gates P/N: 22436. If we had it to do over again we would try a Jeg’s double pass radiator (555-52039). This would put both the inlet and outlet on the passenger side and eliminate the upper hose from having to go all the way across the vehicle.
#33
TECH Resident
The transmission controller is actually in the transmission on this setup. We are currently developing the features of this transmission for our engines and EFI systems. The only feature that we probably won't wind up accomodating is the torque management which is preferable for aftermarket use.
The gauges in this truck are SAE J1939 which is pretty standard in other applications. We are working on making our controller run GM stock factory gauges. (GMLAN) Once we do this, I don't see any reason why it wouldn't run the aftermarket devices that you listed.
The gauges in this truck are SAE J1939 which is pretty standard in other applications. We are working on making our controller run GM stock factory gauges. (GMLAN) Once we do this, I don't see any reason why it wouldn't run the aftermarket devices that you listed.
#34
Very nice
Love the build. I have a question what are the gear ratios of the GM 6L90E? Depending on what they arelooks like it might just do the trick for my swap (I haven't researched that yet) Thanks Dave
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#36
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1st---4.03
2nd---2.36
3rd---1.53
4th---1.15
5th---0.85
6th---0.67
They allow you to gear your vehicle numerically low and still have good acceleration from a dead stop.
#37
Thank you Shaun
Thank you very much looks like the overdrive isn't to bad either. My swap will be in a 3000 lb car with 3.55 gear (nothing else available but 4.10) so first will be really quick. What kind of RPM are you turning at 70 mph? You said you have 3.08 if I remember so I can calculate back with that and tire size if you would be so kind? I would like this thing to get decent mileage if I can keep my foot out of it. Thanks again Dave
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