Turbo professionals needed

roachie said:
EFI life, cp3 bag of parts, and an S366 (or S465) will do all you want. And cost $2500 + what you need on a trans.

If you want to spend 12k on what you have listed just to make 600hp....thats retarded.
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did you get a 6.7 release for EFI Live?
 
What you listed is capable of 800 with the supporting turbos. Your trans will not be, 68's still suck. What I listed will set you in the 550 range with no problems after some minor trans work.


If you would have said that you want 900hp this would be much easier. If you dont like the truth...too bad.


Edit: It will be out soon enough.
 
I realize many folks go at this with a HP number in mind. I am going at this with the premise that I want a super capable rig...one that can tow a heavy load, unhook and hit the strip if need be. It will see punishment, but not be an all out race machine. More than anything, reliability is the most important.
The 68 is the weak link. Understood. Original post had that covered...stated that I am going in with a suncoast comp 68.
Now back to the point, single vs. compound...dual cp3 or modded CP3? 90 or 125 nozzles? Decisions, decisions, decisions...

Thanks guys for the feedback. Keep it "cummins".
 
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Do the turbo first. The 6.7's stock fueling is already capable of overwelming the stock turbo with a hot tune.

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willjames007 said:
The 68 is the weak link. Understood. Original post had that covered...stated that I am going in with a suncoast comp 68.
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DONT waste ur time with that 68 retro fit a 48re before u drop the coin cheaper and stronger in the long run
 
I saw this thread over there, but there was so much "get a huge turbo with big wheels talk" I said screw it. I think those guys are basically steering you into oncoming traffic. Your rig on 37's with an S475-78 single towing a 10,000lb camper regularly? The only reason I didn't say anything is because you're on the flats down in Florida so maybe it is possible it could be tolerable. Doubt it.

Sounds like you are getting some more realistic suggestions over here.
 
A big s300 if you are going to tow a lot, it will get you to where you want to go and be very street friendly. S400's are great on the big end they do not spool nearly as well on the bottom as an s300. 66/74.90 will drive nice and make the power you are looking for.
 
The only reason not to go twins is money. They'll be way more drivable than a single in every way and less prone to surging.
 
Sandaholic said:
I saw this thread over there, but there was so much "get a huge turbo with big wheels talk" I said screw it. I think those guys are basically steering you into oncoming traffic. Your rig on 37's with an S475-78 single towing a 10,000lb camper regularly? The only reason I didn't say anything is because you're on the flats down in Florida so maybe it is possible it could be tolerable. Doubt it.

Sounds like you are getting some more realistic suggestions over here.
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After going back and reading his sig on CF, I have to agree with you. I took for granted that it was a stock truck, and not lifted on 37's. If he's planning on towing, and racing.........there could be a trail of broken parts on the way to his goal. I would probably inclined to say twins over a single.
 
Sandaholic said:
I saw this thread over there, but there was so much "get a huge turbo with big wheels talk" I said screw it. I think those guys are basically steering you into oncoming traffic. Your rig on 37's with an S475-78 single towing a 10,000lb camper regularly? The only reason I didn't say anything is because you're on the flats down in Florida so maybe it is possible it could be tolerable. Doubt it.

Sounds like you are getting some more realistic suggestions over here.
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Completely agreed! The perfect turbo for this Guy would be a bullseye billet 6 blade 466/83/1.0. I used to run one and I was start spooling it at 1300 rpm, and lit hard by 1800, full flow by 2250.

The comment about s400 only being good on the big end is bunk. I was spooling the above stated turbo sooner than 64/480 twins would. I went to my current setup to ditch torque on the low end.
 
not enoughsmoke said:
DONT waste ur time with that 68 retro fit a 48re before u drop the coin cheaper and stronger in the long run
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At some point and time a guy has to wonder when an 47/48 is more economical over a 68.

Initial purchase price is about the same AND rebuilding a 48 down the road is cheaper.

How often are the extra 2 gears necessary?

Its grounds for a debate IMO
 
I think a S471 would be perfect for him...

You can tow and run hard with it.

35's 37's whatever it will still spool quick with a pump and nozzels/injectors
 
Sandaholic said:
I saw this thread over there, but there was so much "get a huge turbo with big wheels talk" I said screw it. I think those guys are basically steering you into oncoming traffic. Your rig on 37's with an S475-78 single towing a 10,000lb camper regularly? The only reason I didn't say anything is because you're on the flats down in Florida so maybe it is possible it could be tolerable. Doubt it.

Sounds like you are getting some more realistic suggestions over here.
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Well, the trailer pulls quite well even on a lift and 37s. I would not want to go any further than that. It is the mega cab, so it helps with the weight, keeping more of it in front of the camper. I have pulled it through Florida and through the hills in Georgia with no issues.
 
nike said:
At some point and time a guy has to wonder when an 47/48 is more economical over a 68.

Initial purchase price is about the same AND rebuilding a 48 down the road is cheaper.

How often are the extra 2 gears necessary?

Its grounds for a debate IMO
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I am not spun up on the retrofit. I know some individuals have done it, but what is the advantages (besides cost and availability). ATS and SC are both making killer 68s (albeit at a cost) that are nearly indestructible.
 
not enoughsmoke said:
DONT waste ur time with that 68 retro fit a 48re before u drop the coin cheaper and stronger in the long run
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I have also heard that the 48s are tough and appearantly more abundant at this point. Advantages of a 48 over a 68? I know cost is a factor...Is the retro difficult?
 
ISBeINSIDE said:
the 6.7's can spool a fairly large turbo with not much work. have a truck with a s465 on it. it tows heavy 95% of the time.

you are going to want a large turbine housing somewhere in 16cm range to control drive pressure, a external gate is also advisable. a silver bullet wouldnt be a bad choice...


Jason
SBT/Left Coast Diesel
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Jason, tow heavy? I know 10K is nothing for the cummins, but I do have to put into consideration that I am lifted and rolling 37s. Is the s465 still a viable choice?
 
Side note prior to picking a turbo know what you want to do fueling wise. I've personally started with a sps66 (66/71/14), then went to a silver 66 (66/74/14), a bullseye billet 6 blade 66/83/1.0, and now the fi s478li/87/.90. So its fair to say I've tried quite a few different turbos.

The first 2 turbos were ran with 75's. The silver 66 then with 150's, which was too much for that turbo. The bullseye billet 6 blade 466/83/1.0 was a spectacular turbo and would flow 82 lbs of air per min at only 30psi vs a standard 66 flowing almost that at 55psi. I ditched that turbo because it was too torquey for my likes (1400+ftlbs) and wanted more top end potential so I went to the 478. Works great for me considering I have good fueling and smoke free on the big end with heavy tuning. Eventually I'll put a cam in, but don't see myself wanting to do a 10 he job just to swap a cam.

Reliable smoke free setup for you would be a bullseye billet 6 blade 466/83.10 with race cover and 90's with your cp3 of choice. Heck you could get away doing just a bag of parts kit and medium tuning.
 
With the setup : bullseye billet 6 blade 466/83.10 with race cover and 90's with your cp3 of choice - what do you figure my HP figure will be? Also, I am wanting to leave room to expand if ever the need arises.
 
willjames007 said:
Well, the trailer pulls quite well even on a lift and 37s. I would not want to go any further than that. It is the mega cab, so it helps with the weight, keeping more of it in front of the camper. I have pulled it through Florida and through the hills in Georgia with no issues.
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What I said may have sounded wrong I wasn't talking about big wheels and tires, I meant big compressor and turbine wheels. Also my point wasn't that a lifted rig can't tow. I had a 15,000lb fifthwheel and my rig with a lift and tires towed that thing like a beast when it had the stock turbo and injectors. It just didn't look like the whole combo was going to work well for towing. I also assumed you hadn't regeared the axles.

IMO it looks like blackmega has you squared away. Probably be the most inexpensive and tow friendly route while still having some good power potential.

If your needs change down the road I'm sure you could always find someone to buy your turbo while you move up. I know that's what we're all trying to avoid here (doing it twice......or more lol) but sometimes that's just part of the compromise. Unless of course you go with compounds. I'm sure you can go bigger, but I have to imagine that if you don't guess just right with the parts combo that towing could turn into a PITA. And you'll turn that nice white trailer into a gray mess.

Course I'm just an apprentice at this diesel modding. The little (I think) I know has come from reading here and the little bits and pieces gleaned from good old google searches.
 
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