DTS LB7 64mm Turbo

[RockinJW]

It's a fully rebuilt stock IHI turbo, they're doing some machine work on the compressor housing to fit the 64mm extended tip wheel. Exhaust side stays stock as the factory turbine wheel and wastegate work quite well. I also opted for the polished compressor housing.

Dynoed the truck with the stock turbo, swapped the turbo, and dynoed it again. Only other difference was the ambient air temp, as it was 48-degrees when we tested it in the morning at 9:00 and 75-degrees when were re-tested at 2:30.

DTS Turbo picked up 30hp and 35ft-lbs of torque at peak. But notice how much broader and flatter the curves are, truck holds power and torque much longer through the RPM's. Driving it, you'd never know it wasn't the stock turbo as far as spool-up and driveability go. Pulls much harder and EGT's are down over 100-degrees at wide open throttle. Judging by the exhaust, my tune is out of fuel, think we could feed it some more in the tuning, but in the interest of keeping the stock rods happy, I'll probably leave it where it's at.

Thing is so strong on the street now. I charted it out and figured the numbers based off Engine RPM. This shows the real improvement...

2500 +20hp / 30lb-ft
2600 +10hp / 34lb-ft
2700 +20hp / 40lb-ft
2800 +30hp / 30lb-ft
2900 +28hp / 50lb-ft
3000 +40hp / 80lb-ft
3100 +45hp / 85lb-ft
3200 +55hp / 80lb-ft
3300 +60hp / 95lb-ft
3400 +70hp / 135lb-ft

So while at peak power, it only shows 30hp and 40lb-ft improvements. The gains just get larger the further into the RPM range you go, to a max gain of 70 rear wheel horsepower and 135lb-ft of torque at 3400rpms. That's a HUGE jump with no change in tuning. For towing, racing or sled pulling application this thing is well worth the investment. Not to mention the drop in EGT's...

Here is the chart from my Tow Tune...notice how the torque curve stays constant clear through and the horsepower just keeps climbing. Can't wait to try this new turbo out with some weight behind the truck

 

[bikeluver43]

Looks nice, what else is on the truck?

 

[DirtyMaxx03]

How much did DTS charge you for that thing?

 

[RockinJW]

Looks nice, what else is on the truck?

Tuning, trans, lift pump, DTS intercooler, intake and exhaust.

How much did DTS charge you for that thing?

It's $1500+core

 

[DirtyMaxx03]

Damn. Hope it came with a tube of lube

 

[RockinJW]

Damn. Hope it came with a tube of lube

I thought it was a good price, no mounting kit required since it's a direct replacement. Was an easy swap and made a big difference. It's the least expensive drop-in on the market and it works.

 

[DirtyMaxx03]

I have $1,400 into my whole s472 kit

 

[ctdiesel99]

I have $1,400 into my whole s472 kit

WTF does this drop in replacement turbo have to do with a ****in s472 kit??

 

[1pieceatatime.]

WTF does this drop in replacement turbo have to do with a ****in s472 kit??

Unless he's sled pulling and has to run a stock appearing charger, it means why spend $1500 for such a small improvement.......

 

[phale]

That turbo is really aimed at workstock pullers. Around where DTS and ourselves are located workstock is a huge class.

 

[LReiff]

It's also a great alternative for someone simply needing a replacement charger.

 

[DirtyMaxx03]

That turbo is really aimed at workstock pullers. Around where DTS and ourselves are located workstock is a huge class.

I always forget about the sled puller guys.

 

[1pieceatatime.]

That turbo is really aimed at workstock pullers. Around where DTS and ourselves are located workstock is a huge class.

If thats the case, hows a truck laying down 530 horse going to hang in a stock appearing charger class?

 

[RockinJW]

Unless he's sled pulling and has to run a stock appearing charger, it means why spend $1500 for such a small improvement.......

i thought it was a great improvement. 70hp and 135lb-ft at 3400rpms...that's a good gain if you ask me. Plus, it drives like stock.

If thats the case, hows a truck laying down 530 horse going to hang in a stock appearing charger class?

I'm running all stock fuel and am not a sled puller, just a daily driver. DTS said they have multiple guys running this turbo with bigger injectors and cp3's at much higher power levels.



Sent from my XT907 using Tapatalk 2

 

[1pieceatatime.]

i thought it was a great improvement. 70hp and 135lb-ft at 3400rpms...that's a good gain if you ask me. Plus, it drives like stock.






I'm running all stock fuel and am not a sled puller, just a daily driver. DTS said they have multiple guys running this turbo with bigger injectors and cp3's at much higher power levels.



Sent from my XT907 using Tapatalk 2

If your excited about the power gains, thats all that matters. I guess in the grand scheme of things its not an awful piece for the dollars invested.

 

[Powerstroked162]

If your excited about the power gains, thats all that matters.

That is all that matters.

 

[RockinJW]

I should point out that this is with ATP's standard stock turbo/built trans EFI tunes

 

[DirtyMaxx03]

Now see how an s480 does under it :ft:

 

[2001 max]

im running the same turbo with atp stock turbo/built trans tunes and i agree i need more fuel as well it works well for pulling, i heard that duramax tuners tunes run good with this turbo, thats who im going to go to for tuning