Supercharged Smok'n Bronco Build Thread
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Tuned
Joined: Sep 2010
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From: Boise Idaho
My utility belt already has a vacuum pump Robin, just in case. I guess there really wouldn't be a benefit to having vacuum. It would allow the vacuum pump to come off, but I don't think that uses enough power to make much of a difference. I'm still kind of curious though, and every little bit helps. I'm sure someone that understands vacuum much more than I do will speak up and verify. I guess my thoughts are, if a turbo creates an exhaust restriction than wouldn't a supercharger create an intake restriction? Obviously the principles are different, I'm still leaning towards no.
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That's what I thought too. I'm sure they are.
I was thinking tonight, I do that once in a while, will this supercharger on a diesel create vacuum? I don't know if there have been enough superchargers installed on diesels for the question to arise, so I'm trying to rap my mind around the idea. The supercharger isn't a restriction because it makes boost I guess. It's sucking in a lot of air but it's not going to encounter restriction like it would with a throttle plate.
I was thinking tonight, I do that once in a while, will this supercharger on a diesel create vacuum? I don't know if there have been enough superchargers installed on diesels for the question to arise, so I'm trying to rap my mind around the idea. The supercharger isn't a restriction because it makes boost I guess. It's sucking in a lot of air but it's not going to encounter restriction like it would with a throttle plate.
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Tuned
Joined: Sep 2010
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From: Boise Idaho
That makes sense to me. If it's creating boost than there will be more air dragged in but that does not make for a restriction.
I have my mercedes engine almost out so I should get the bronco front end taken apart Friday after I haul this car to the crusher tomorrow. I had some fun with over torqued bolts stripping out and it took forever.
I have my mercedes engine almost out so I should get the bronco front end taken apart Friday after I haul this car to the crusher tomorrow. I had some fun with over torqued bolts stripping out and it took forever.
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Joined: Dec 2011
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From: Kodiak, Alaska
That makes sense to me. If it's creating boost than there will be more air dragged in but that does not make for a restriction.
I have my mercedes engine almost out so I should get the bronco front end taken apart Friday after I haul this car to the crusher tomorrow. I had some fun with over torqued bolts stripping out and it took forever.
I have my mercedes engine almost out so I should get the bronco front end taken apart Friday after I haul this car to the crusher tomorrow. I had some fun with over torqued bolts stripping out and it took forever.
Im just thinking here (I dont know much about superchargers) but wouldnt you need that engine to turn over pretty fast to push enough air in the engine for starting?
Do you know the total lengh of the bronco frame?
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Tuned
Joined: Sep 2010
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From: Boise Idaho
That's an excellent question. I could always buy some batteries with more CCA's but I don't think it's needed. At the speed the supercharger will be pumping air on start up the pumping action will do more to assist starting than prevent it. Even if it doesn't create boost at starting rpm it will still be pushing more air than the engine would normally use, making for better starts in both higher temp conditions and in the cold. How much better, whether it will be noticeable is hard to say. I also have an old starter that I'm going to have rebuilt that spins a lot faster than my brand new Mitsubishi starter. I had it on two years ago but the solenoid got stuck on and I had to rip the terminals off before it ruined the starter or caught it on fire. I don't know why it spins so much faster than all the others I've had but I won't argue with it. I figure as long as it was spinning before I could shut it down it would be better just to rebuild it. I'm not sure what is ruined when they are overheated but I'll look into it. Maybe I can get away with replacing only the solenoid. The relay was fine, I don't know what went on in that solenoid to make it stay engaged.
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Joined: Apr 2008
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Im pretty sure hes stock CR, and i believe his estimate / goal is around 15psi @3k and 1-2psi at idle.
The blower will always be moving more air than the engine would see NA, so no there will be no restriction in the intake, or vaccuum of any kind there.
The blower will always be moving more air than the engine would see NA, so no there will be no restriction in the intake, or vaccuum of any kind there.
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Tuned
Joined: Sep 2010
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From: Boise Idaho
Stock CR is correct. I want to keep the supercharger efficient in order to properly test the supercharged idi idea, smart numbers are what I am looking for rather than huge power. Not that good power can't be attained, but at the boost I will be running lowered compression won't be necessary and if the supercharger is kept efficient it will be better than running more boost. At about 12 psi @3300 I would be in the far right side of the 70% efficiency area of the TVS flow map, but the advantage of higher boost (15psi) is that I would stay in the highest efficiency possible throughout most of the rpm range and get more boost at idle, but not too much. I think initially the torque curve on this motor is what will get attention rather than the power it puts out. That is, compared with some of the beasts these guys are are putting together. Power will still be considerable and improvements will be made once it is all together.
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Tuned
Joined: Sep 2010
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From: Boise Idaho
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Tuned
Joined: Sep 2010
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From: Boise Idaho
I found my disc with the old picks of my bronco being put together. That camera I had was junk. I lost a lot on the computer but at least I have a few left. That 38 gallon fuel tank sits down a ways. I'll have to make a skid plate for it eventually.
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Joined: Dec 2011
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From: Kodiak, Alaska
Pretty intresting running coil springs in front , did you just weld on new spring perches to the 60 or is it a newer 60 that comes with coils? Do you know the length of what you cut off of the back of the frame or how much you had to move tha shackle foreward?