Hi guys, my buddy and I are going to be working on our m35a2's and we were curious as to what turbocharger can replace the stock one, if the injectors could be honed, intercooler fabed for it, modify the headbolts(ones that will handle higher level of boost) how to turn up the fuel pump. I am curious as to how much boost the stock turbocharger puts out, how much it can handle. How much boost will the stock headbolts can handle. These deuces will be operating on diesel fuel only. I am trying to get a feel for what can be done to increase the power output of these LDT 465 motors. Please give me any information you can, Im a cummins guy, ive never worked on these motors nor do i have much knowledge on the performance of them. Thanks alot!!
Alrght. I will spout back what I have read. My truck is stock, so this is only what I have read. When you add that new inspection port to your engine (You know, the one you didnt want) dont start going round saying "Well Loco said I could" I will simply laugh at you.
I know, your excited, but this truck is not ever going to be fast with its current engine. All you can hope for is less slow. Also, the "Modification and Hotrodding" forum is a good place for these questions.
Searching inter-cooler will net you DAYS of reading material.
Your questions, with short answers:
what turbocharger can replace the stock one? This has not been covered much. The general opinion I have read is that the stock ones are more than sufficient, but there are gains to be had by adding one with a waist-gate. This can be obtained from some of the LDS engines (5 ton multifuels)
Can the injectors be honed? The way I understand anything can be honed. Oh! you mean can it do any good? It COULD. The stock injectors may be either the single or double port design. You have to remove them to find out. These do not inject a mist, they inject a stream. This results in less power but helps it be less picky with fuels.
intercooler fabed for it? Silly question. You asked if you CAN fab an inter-cooler. I dont know if you can. I know I CAN fabricate up an inter-cooler for a non turbo Chevy if I wanted to, it just wont do any good. For putting one on the Deuce, the intake is heated with engine coolant, so the question of how much good an Inter-cooler will do comes up. Wreckerman just did a thread with some awesome info about this, you should search, "Threads started by Wreckerman" and do some reading.
how to turn up the fuel pump. Wow. I was a noob once, (Kind of still am) and I guess I didn't use the search as much as I should have, but this question is kind of asinine. Im not just being a dick, but when you enter the Deuce forum, its a sticky-ed thread, at the top, first one you see. This the most frequently asked question on the entire forum. "How to turn up the fuel, with pictures!"
Im not trying to be a jerk, Im not, but we have answered this question 1,000,000,000 times.
how much boost the stock turbocharger puts out, how much it can handle. How much boost will the stock headbolts can handle. The most boost I have seen used in my reading was around 25psi.
Alright, here is some of Loco's knowledge. Your thinking of this engine like a Cummins. The cummins is an INCREDIBLE engine. The block and lower end are INSANE, able to handle around 450hp without modification. It was (As I understand) an engine that was used on marine applications with water to air inter-coolers and put 400hp out comfortably. It was de-tuned for the trucks. That makes it great for going butt humping FAST.
The LDT is not a cummins. It will never be a cummins. If you treat it like one, your going to snap a rod, or if you avoid that then the block will actually come apart near cyl #6. Your best bet if you want Cummins performance? Put a cummins in it. Fits well, and is an awesome improvement.
Now, what other members have done to get some power from these engines. You start with a pyro and boost gauge. Next, we bump the fuel up till the EGTs reach about 1100. Not fast enough? Then time to add a water injection system. The good news now? Your faster, and still multi-fuel!
Your still going to top out at 56mph, so lets throw some 395 series tires on it, (46 inch tall) and/or an overdrive kit. Either of these options will cost approximately $1500.
You are still unhappy with your performance, you want more. You could now loose one of your rear axles, and shorten the bed. You are now 3000lbs lighter, and much peppier. You can try to add a thicker head gasket, or whatever blah blah blah, or just send your LDT to me and buy a cummins for it. Now, your FAST.
I would be NEGLIGENT to not post some stuff about this out dated braking system, so allow me to quote what I told another gentlemen yesterday.
tire size = mph?
I have experienced brake failure on my own Deuce, and THANK GOD I was in a parking lot. Still terrifying.
Im not however saying you should not do as your considering. An overdrive kit and 395s sounds like 1/2 of a GREAT plan, and should put you right around that 65mph/2200rpm sweet point you want. I suggest that you try with just the tires or just the OD kit first, and see if you think you will find the other to be necessary or if 62mph feels good enough to you.
Now lets look at 2/2 of this plan. First step I would suggest is for ever $10 you put towards speed, you put AT LEAST $5 towards stopping. There are a few dirrection to go on this. You can upgrade to 6 wheel disk brakes, which is a big and awesome job. Bit pricey, and involves getting calipers off an F450 or something. OR build a second (Backup) braking system. This could be in the nature of an exhaust brake, or some kind of pinion brake.
Keep in mind, you are taking the lives of everyone else on the freeway into your hands. That is no reason to not do it, and not enjoy your own truck though. We all just want our hobbies protected. We can best to do that by taking care of our members and everyone on the streets around our members.
The main point they want to get across is that you need to check your brake fluid daily, and twice a year remove all six brake drums, thoroughly inspecting any rubber component. When they fail, the entire world seems to speed up, and life gets scary.
I aint done the math, but loading a deuce with 10,000lbs of payload (its surface street load rating) would put a lot more strain on the brakes (I would think) than than tires that are a bit taller and 10 additional MPH.
Sidebar for all you Nay-sayers. Yes, this MAY increase the load on his brakes, but didnt we have a member on here DIE on the freeway because the rest of the traffic didnt realize he was doing 50? Thats not a "it could happen" that DID happen. Its dangerous to do 45-50 on public freeways also.
