I've been researching boosting my motor lately, aka a do it myself turbo set up. I just have a few questions to the people that have blowers, or duner who has a turbo. How did you setup fuel/spark/engine management? Does just the FMU work to get enough gas? Or is that more of a bandaide for fuel issues? Would a SAFC work to control fuel? or would it not work with our speed density setup? I have a few goals to make more power on less boost, and this includes keeping from afro engineering, or using bandaide fixes on things. No offense to anyone that uses an FMU or any of the so called bandaides. If I want to go all out, should megasquirt or another management system be my only option?
Boost questions
00dakotav8
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I've been researching boosting my motor lately, aka a do it myself turbo set up. I just have a few questions to the people that have blowers, or duner who has a turbo. How did you setup fuel/spark/engine management? Does just the FMU work to get enough gas? Or is that more of a bandaide for fuel issues? Would a SAFC work to control fuel? or would it not work with our speed density setup? I have a few goals to make more power on less boost, and this includes keeping from afro engineering, or using bandaide fixes on things. No offense to anyone that uses an FMU or any of the so called bandaides. If I want to go all out, should megasquirt or another management system be my only option?
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i thought u had nitrous, what happened with that?
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I'm in the process of boosting my 4.7 as well. I don't think the MS will work because we have a distributor-less ingnition system. If you go to the dealer and get your PCM done up with the "death flash", you should be able to run like 30 psi with no problems:jester:. Just kidding.
I know Duner runs or ran 5psi on the stock PCM but you seem like your going all out. I'm not so I'll be able to stick with the stock timing and intercool the charge.
Upgrade the fuel injectors to the 24lb ones and you should be able to add enough fuel with a 12:1 FMU no problem. Now if you need more fuel than that, you can just upgrade to higher injectors and choose your FMU from there.
Since your application is very demanding I'd go with the SCT or F.A.S.T. system for tuning. Although, those are supposed to be quite involved. I just want to get my turbo going and then worry about massive HP after this motor is dead or rebuilt. Good luck dude.
I know Duner runs or ran 5psi on the stock PCM but you seem like your going all out. I'm not so I'll be able to stick with the stock timing and intercool the charge.
Upgrade the fuel injectors to the 24lb ones and you should be able to add enough fuel with a 12:1 FMU no problem. Now if you need more fuel than that, you can just upgrade to higher injectors and choose your FMU from there.
Since your application is very demanding I'd go with the SCT or F.A.S.T. system for tuning. Although, those are supposed to be quite involved. I just want to get my turbo going and then worry about massive HP after this motor is dead or rebuilt. Good luck dude.
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I'm addicted to it, I'd rather have that kinda power on tap 24/7 as opposed to extreme drivetrain shock when it hits.
I guess the FMU is a cheap solution, but it seems like thats more of a bandaide type fix and theres more to go wrong with that. I suppose by time I boost the sct tune will be readily available for it.
duner has ran up to 14lbs of boost that i remember but he also had his pcm flashed
you really need to pm him or find him on the delphi forum with the name madduner i think it is
haha I bet you just need more power to turn those big wheels?
How much boost are you guys plannin on anyways?
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Duner has a .91 A/R turbine and I think a .70 A/R compressor on his Garret.
My turbo is a .81 A/R turbine and the same compressor A/R. Not sure what kind of turbo it is as I got it on e-bay for $250. For now I plan on running up to 7psi until I can get all the bugs worked out and determine what might break first:stick:. This is my first turbo install and actually the first vehicle I've really worked on so I'll take it slow for now.:waiting:
And unless you guys do a rear mount or make some custom manifolds, your gonna have a real bitch of a time stuffing that turbo into the engine bay.
My turbo is a .81 A/R turbine and the same compressor A/R. Not sure what kind of turbo it is as I got it on e-bay for $250. For now I plan on running up to 7psi until I can get all the bugs worked out and determine what might break first:stick:. This is my first turbo install and actually the first vehicle I've really worked on so I'll take it slow for now.:waiting:
And unless you guys do a rear mount or make some custom manifolds, your gonna have a real bitch of a time stuffing that turbo into the engine bay.
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Battery delete > * for space in the engine bay. With the batt gone theres enough room for TT. But its pointless on such a small motor. I want to run 14-16 psi / see what the bottom end will take before I need to upgrade pistons and rods. I think the block can take more than 600 because of the girdled design. I'm planning on a custom manifold for the passenger side, and running a pipe from the other side over. I would probably use the same turbo as duner, except I would use an air to air intercooler as opposed to duner's water to air. I think that the a t a would be more efficient for multiple uses. I'm looking for a better average time, as opposed to the one run wonder.
When I do get setup with what I want to do, I will be running ~10 psi on the street and the 14-16 for the track/ saturday night special. This is my daily so I dont need more than 350 at the wheels for traffic driving haha. However I dont drive everyday so having my truck down for a month isnt going to hurt.
^1hotdak, if thats a random no brandebay turbo you might want to be careful. I've heard horror stories of the housings being super glued together, and turbine blades falling apart at anything more than 5-8 psi resulting in engine ownage. Just a thought.
This is obviously a long ways off for me, like 6 months or so, But I want to take the time now to get kinks worked out that way when its all put together and done I can really have fun.
Once I get closer to this I'll probably be in contact with Duner. Hopefully I'll be getting my turbo for xmas
When I do get setup with what I want to do, I will be running ~10 psi on the street and the 14-16 for the track/ saturday night special. This is my daily so I dont need more than 350 at the wheels for traffic driving haha. However I dont drive everyday so having my truck down for a month isnt going to hurt.
^1hotdak, if thats a random no brandebay turbo you might want to be careful. I've heard horror stories of the housings being super glued together, and turbine blades falling apart at anything more than 5-8 psi resulting in engine ownage. Just a thought.
This is obviously a long ways off for me, like 6 months or so, But I want to take the time now to get kinks worked out that way when its all put together and done I can really have fun.
Once I get closer to this I'll probably be in contact with Duner. Hopefully I'll be getting my turbo for xmas
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thanks 00dakotaV8. Now I have to worry about that turbo too
Below is Duner's turbo page that shows his custom passenger manifold and what not. I've been thinking bout the cutom manifold deal but I still want my cats in place so I can pass emissions here is AZ. When I move back home to Florida it will be different because there's no regs down there.
Good luck dude and keep us updated.
http://members.cox.net/duner/Turbo/RTnotTurboPage.html
Below is Duner's turbo page that shows his custom passenger manifold and what not. I've been thinking bout the cutom manifold deal but I still want my cats in place so I can pass emissions here is AZ. When I move back home to Florida it will be different because there's no regs down there.
Good luck dude and keep us updated.
http://members.cox.net/duner/Turbo/RTnotTurboPage.html
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