PSD POWER007
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Irate Diesel.
Best engine/transmission setup for a daily driven/towing 7.3
- Thread starter jcarrick
- Start date
Irate Diesel.
PSD POWER007
Member
Also, DP Tuner sells the HFSB, which is basically the same. I think it is just a different compressor orientation.
Homesteader
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Thanks guys
gnxtc2
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Told ya......you'll love the BASB. Did you get the BASB with the billet wheel?
Who's tunes are you running?
Billy T.
[email protected]
PSD POWER007
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Yes, I got the billet wheel. Running Jody's tunes and they work really well. Gonna take the trailer up soon and have some Live tuning done to really dial her in.
nossliw
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While everyone bitches about this one or that one, I will make one other suggestion. Your buddy is towing a toy hauler...so I'm guessing 14-18k lbs... have fun on any mountain pass or grade of any sort doing that with 3.73s and 35's... I’d love to see this 1800 rpm 6% grade climb at 70 mph in over drive some speak of with 14,000+ behind their truck. Sea level on the flat, doable … a true mountain pass 8000-11,000 feet, forget it. If you are running 35’s, 4:10 gears will be a nice change. Just a suggestion.
I'd consider the cost perspective of all of it too.
A stock S366 flows 1050cfm, billet wheel maybe 1150cfm – 580$ shipped(not knock offs) +T4 kit $$$
BASB = 1350cfm – 1375$ + T4 $$$
38r = same as the s366 IMO - 1350-1500$? Not rebuildable
So that being said I’d just stick with the 38R if you don’t want to convert. If you do convert is the BASB really worth 120% more of the cost of the 366? IMO…no. Would I choose it over a 366, yes if I could afford it. Went with the 366 instead. Coming from someone who does not use his truck as a toy but rather for towing, The 366 is a hell of a change over the stock unit. Towing 14-17,000 lbs in the CO mountains I have yet to push 1250 in a stock tune, turn it up, yes she needs a bit of water to stay within reason. Yanked that weight around over 10,000 miles last year.
When out in the Midwest at a lower elevation, there was absolutely no issue on any grade with EGTs. Once again, its all in the tuning as some have mentioned.
I'd consider the cost perspective of all of it too.
A stock S366 flows 1050cfm, billet wheel maybe 1150cfm – 580$ shipped(not knock offs) +T4 kit $$$
BASB = 1350cfm – 1375$ + T4 $$$
38r = same as the s366 IMO - 1350-1500$? Not rebuildable
So that being said I’d just stick with the 38R if you don’t want to convert. If you do convert is the BASB really worth 120% more of the cost of the 366? IMO…no. Would I choose it over a 366, yes if I could afford it. Went with the 366 instead. Coming from someone who does not use his truck as a toy but rather for towing, The 366 is a hell of a change over the stock unit. Towing 14-17,000 lbs in the CO mountains I have yet to push 1250 in a stock tune, turn it up, yes she needs a bit of water to stay within reason. Yanked that weight around over 10,000 miles last year.
When out in the Midwest at a lower elevation, there was absolutely no issue on any grade with EGTs. Once again, its all in the tuning as some have mentioned.
Twisted diesel automatic if you upgrade the injectors at all. If you run a stock injector and tuning or an ac/stock a torque converter and vb would be sufficent if you keep it cool.
Im done with the turbo.
Ive towed tons of **** with 35's and 37s around here with less power.
CurtisF did the same thing with 38r, 250/200, and 35s with COOLER egts so a 38r is capable even with larger amounts of fuel. Jus sayin...lots of no's but lots sayin yes too..
Iincolnlocker runs a 38r and he drives like a banshee in a 470 hp truck and his egts were enviably cool..
Im done with the turbo.
Ive towed tons of **** with 35's and 37s around here with less power.
CurtisF did the same thing with 38r, 250/200, and 35s with COOLER egts so a 38r is capable even with larger amounts of fuel. Jus sayin...lots of no's but lots sayin yes too..
Iincolnlocker runs a 38r and he drives like a banshee in a 470 hp truck and his egts were enviably cool..
gnxtc2
Active member
I have a BASB and tow 21k in the East (PA, WV). I have 3.55s with 275s. There're a few good grades in western PA and going from PA into WV. I don't know the grade percentage but have pulled 5-7 mile grades. I could've pulled them OD at 70 (1850 rpm) but get caught up in slow moving traffic.. I'm passing cars. The slower moving traffic makes me downshift into 3rd.
Billy T.
[email protected]
Billy T.
[email protected]
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Thats awesome shti right there...move over, comin through!
gnxtc2
Active member
gnxtc2
Active member
How does the basb like higher rpms? I am at 2350-2400 at 70 mph in fifth gear. At those rpms egt has obviously not been a problem while towing, around 900 to 950 or so. This is with a brute66. Much better than my stock turbo. One thing im curious about. When you install a turbo that moves more air than stock, like a 38r/basb/66, will your boost stay the same at a given throttle position? Or does the engine get the volume of air it needs at a lower boost since so much more air is being moved? Does the addition of an intercooler affect any of that?
Asking because my truck is pulling harder than ever but i believe the boost is down a couple psi from what i can remember from before. Its hard to be sure since i didnt have the stock turbo numbers written down. The truck just seems to work less than before on the same hills. Maybe its because i need less throttle to tackle the same hill as before, therefore im not asking the turbo to spin as much?
Asking because my truck is pulling harder than ever but i believe the boost is down a couple psi from what i can remember from before. Its hard to be sure since i didnt have the stock turbo numbers written down. The truck just seems to work less than before on the same hills. Maybe its because i need less throttle to tackle the same hill as before, therefore im not asking the turbo to spin as much?
gnxtc2
Active member
Boost is restriction. If the engine is able to use all the cfm provided by the turbo, there would be 0 boost.
The bigger and more efficient turbos give more cfm at lower boost levels. The stock turbo needs to be worked harder to provide the same cfm. When this happens, the turbo is being operated out its map.
There is a balance between compressor wheel size/design vs exhaust wheel/exhaust housing A/R. The more cfm you put in the more, the same air needs to exit....exhaust backpressure/drive pressure.
Once the drive pressure reaches 2:1 to boost, need to look at a different turbo, cam lobes and/or exhaust housing to lower the drive pressure.
Billy T.
[email protected]
The bigger and more efficient turbos give more cfm at lower boost levels. The stock turbo needs to be worked harder to provide the same cfm. When this happens, the turbo is being operated out its map.
There is a balance between compressor wheel size/design vs exhaust wheel/exhaust housing A/R. The more cfm you put in the more, the same air needs to exit....exhaust backpressure/drive pressure.
Once the drive pressure reaches 2:1 to boost, need to look at a different turbo, cam lobes and/or exhaust housing to lower the drive pressure.
Billy T.
[email protected]
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PSD POWER007
Member
BASB has PLENTY to give in the upper rpm that you mention. If you are happy with what you have...the BASB will blow you away. Billy actually went from the turbo you have to the BASB, he will tell you the improvements.
PSD POWER007
Member
Being a higher cfm rating and having a larger exhaust housing...I'd think it will handle it just like a 38r would but just a tad better. Is my thinking wrong there?
bruce
Active member
Why would you run it with 250/200's? It's the same money as a 468
Better? I dont know about better? We're still deciding the better issue at low fuel levels.
Seems guys who went to the basb had trouble eith their 38rs. Lots of us didnt though.
The one time I had trouble for a month running some larger a codes or small hybrids, I can't remember, it was 200 degrees high. Always. I bkamed the egt probe. I do have vatometers after all. I finally threw in good stock injectors. ..no chip and a loaded trailer. Everything looked good but still 200° hot. Wtf!? 900 degrees with 8klbs of trailer running up the 7 mile hill to Arlington from my house. Its 2-5% with no flat spots. It was running at 900 degrees. Doing 55.
I finally went to checking my new brakes and new bearings. Frikkin pass side rear caliper was dragging :doh: two week old brakejob. Smh. Replaced it. Reinspected. Road test. Stock injectors no tuning. Trailer. Running 65 up the same hill egts 775-800 degrees. Pedal to the floor. Which is pretty effin good. The truck had full fuel system, srp1,35s, and 3.73. Those are cool egts in my book. With the chip and php tunes it wouldnt exceed 750 doing the same run. Unless I used the race tune! Then 1300 was there lol. This is with that billwt wheel too.
I do have one gripe right now that is totally related to that wheel. With 35s and 3.73s it hits a hot spot right into OD with the billet wheel. Its not running high enough and it hits 900 degrees. With the stock 38r wheel it'd be 550-600. Smaller tires would work or putting that noisy ass cast wheel back in.
Seems guys who went to the basb had trouble eith their 38rs. Lots of us didnt though.
The one time I had trouble for a month running some larger a codes or small hybrids, I can't remember, it was 200 degrees high. Always. I bkamed the egt probe. I do have vatometers after all. I finally threw in good stock injectors. ..no chip and a loaded trailer. Everything looked good but still 200° hot. Wtf!? 900 degrees with 8klbs of trailer running up the 7 mile hill to Arlington from my house. Its 2-5% with no flat spots. It was running at 900 degrees. Doing 55.
I finally went to checking my new brakes and new bearings. Frikkin pass side rear caliper was dragging :doh: two week old brakejob. Smh. Replaced it. Reinspected. Road test. Stock injectors no tuning. Trailer. Running 65 up the same hill egts 775-800 degrees. Pedal to the floor. Which is pretty effin good. The truck had full fuel system, srp1,35s, and 3.73. Those are cool egts in my book. With the chip and php tunes it wouldnt exceed 750 doing the same run. Unless I used the race tune! Then 1300 was there lol. This is with that billwt wheel too.
I do have one gripe right now that is totally related to that wheel. With 35s and 3.73s it hits a hot spot right into OD with the billet wheel. Its not running high enough and it hits 900 degrees. With the stock 38r wheel it'd be 550-600. Smaller tires would work or putting that noisy ass cast wheel back in.
