Possible power numbers?/pointers and thoughts

[S Phinney]

I have a stock lly living at over 650. It get driven like a normal truck get driven for the most part. It has been 130,000 miles like this. Even dynoed it this weekend with drive leaks and still made exceptional power even though the torque was low because iof the leaks. How well it last you is going to depend more on you and the tuning than anything else. Drive it like someone with sense and it will do ok.


Sent from my iPhone using Tapatalk

 

[zakkb787]

I have a stock lly living at over 650. It get driven like a normal truck get driven for the most part. It has been 130,000 miles like this. Even dynoed it this weekend with drive leaks and still made exceptional power even though the torque was low because iof the leaks. How well it last you is going to depend more on you and the tuning than anything else. Drive it like someone with sense and it will do ok.


Sent from my iPhone using Tapatalk

That's my goal. It's not like I'm going to drive it on the hottest tune every day. Now I drive on my dd tune which isn't too much over stock. Just like to have a nasty tune that I can put down some wild dyno numbers. Maybe a few passes on our local strip. Just wonder how a s472 will spoil with my setup...

 

[Josh154]

Talk with Russ aka 1trikhd. He has a 472sxe on a lbz with stock fuel and made 680. He seems more than happy with it. Trans tuning helps shift points and staying on top of charger. Your 30% sticks will also help spool up but remember a fast spooling hard hittinf charger will bend those rods easy. If I were in your shoes with a lb7 I'd go 472

 

[S Phinney]

That's my goal. It's not like I'm going to drive it on the hottest tune every day. Now I drive on my dd tune which isn't too much over stock. Just like to have a nasty tune that I can put down some wild dyno numbers. Maybe a few passes on our local strip. Just wonder how a s472 will spoil with my setup...

That lly drives around everyday on a tune that makes 640hp. It has a S371 turbo. Can tow whatever as well. You only need to have gauges and pay attention to the egts when you run bigger turbos. My goal is to keep egts under 1200 when accelerating or pulling a grade. It does that just fine with that turbo. A 472 may be a little slower spooling but not much. It will depend on the converter selection and the tuning as to how it will spool and make it power. If you are careful you should have a little time to build you a motor. It won't be permanent so don't beat on it. When we did head gaskets on that lly protrusion was not where it should have been so the rods are a little shorter that they should be but there are not any side effects that you will notice on this motor.


Sent from my iPhone using Tapatalk

 

[zakkb787]

Talk with Russ aka 1trikhd. He has a 472sxe on a lbz with stock fuel and made 680. He seems more than happy with it. Trans tuning helps shift points and staying on top of charger. Your 30% sticks will also help spool up but remember a fast spooling hard hittinf charger will bend those rods easy. If I were in your shoes with a lb7 I'd go 472

That's probably what I'll end up doing after I pay for the wheels. Heck I may even go 475 just to say I did it. Talk about lag :joker: I would love to tear into the bottom end but I'm afraid of I do I won't be able to stop... twin pumps. Massive twin setup. 100 over sticks. Headwork. Too much $$$

 

[zakkb787]

That lly drives around everyday on a tune that makes 640hp. It has a S371 turbo. Can tow whatever as well. You only need to have gauges and pay attention to the egts when you run bigger turbos. My goal is to keep egts under 1200 when accelerating or pulling a grade. It does that just fine with that turbo. A 472 may be a little slower spooling but not much. It will depend on the converter selection and the tuning as to how it will spool and make it power. If you are careful you should have a little time to build you a motor. It won't be permanent so don't beat on it. When we did head gaskets on that lly protrusion was not where it should have been so the rods are a little shorter that they should be but there are not any side effects that you will notice on this motor.


Sent from my iPhone using Tapatalk

I'll have to remember your name on here. Nice to see someone who is pulling this off and making it last. I have gauges on my truck. And I don't really tow much. Just maybe a pop up camper and a 4wheelers sometimes. As far as converters I don't remember exactly what it is but it's what came with the PPE stage 5 without the billet cover. Stock stall. And Tony does my tuning. I'd probably have him wrote a tune that'll get me down there and let him tune it in house. My goal is to have the fastest stock bottom end duramax in the surrounding counties. Just to say I do haha and pray I can keep it together. But if not I can always drive the old 6.2 diesel :rofl:

 

[Josh154]

If you don't want to build the bottom end then you better just stay stock turbo lol. My max effort is a scary piston cracking 3300uS tune. I've ran it that way for a good year so far. I do cringe every time I go wide open though lol

 

[JRein]

I like the buy twice smile twice adage better, but I get bored quick.

to each their own. LOL Living on that enlisted pay so wife makes me prioritize

Sent from my SAMSUNG-SGH-I747 using Tapatalk

 

[S Phinney]

You are going to have to change that convertor if you want it to perform correctly. We will tow as much as 15,000 lbs or a little over at times with that lly.


Sent from my iPhone using Tapatalk

 

[zakkb787]

You are going to have to change that convertor if you want it to perform correctly. We will tow as much as 15,000 lbs or a little over at times with that lly.


Sent from my iPhone using Tapatalk

Why would it need changed? Which one would I need?

 

[Josh154]

Why would it need changed? Which one would I need?

Your gonna want something looser forsure. All depends on what turbo you go with, too tight of a converter and you will not get a larger single to spoil very good. Somebody else that knows more about converters and big singles should be able to recommend you one, I'm not too educated in that so I will let somebody smarter reccomend one :thumb:

 

[S Phinney]

It most likely will be a little tight for the turbo. You can always try it and if you can't get it to work to your satisfaction change it then. Tuning plays a role in how that feels as well. There are infinite possibilities out there. What works for one guy doesn't work for others so your opinion is the only one that really matters if your are happy with it. You have three important parts of converter characteristics. One is stall which you would be low on. Secondly is flash and that's the loose feel when driving around. Third you have coupling and that is how well it transfers the power to the ground. Most only think about stall when they select one so quite often you end up with the wrong part for the application.


Sent from my iPhone using Tapatalk

 

[Josh154]

Make sure you do your research and ask here before choosing a new converter if you go that route. I didn't and I ended up with a shit 1058 which sucks for my turbo. I got a trans tune just for lockup and it made it more liveable but I still hate it.

 

[WVRigrat05]

to each their own. LOL Living on that enlisted pay so wife makes me prioritize

Sent from my SAMSUNG-SGH-I747 using Tapatalk

I'm on the wife budget too, but man it's sure fun getting new stuff.

 

[zakkb787]

It most likely will be a little tight for the turbo. You can always try it and if you can't get it to work to your satisfaction change it then. Tuning plays a role in how that feels as well. There are infinite possibilities out there. What works for one guy doesn't work for others so your opinion is the only one that really matters if your are happy with it. You have three important parts of converter characteristics. One is stall which you would be low on. Secondly is flash and that's the loose feel when driving around. Third you have coupling and that is how well it transfers the power to the ground. Most only think about stall when they select one so quite often you end up with the wrong part for the application.


Sent from my iPhone using Tapatalk

Ahh I see. Well this converter has less than 1000 miles on it. So let's hope it works decent

 

[zakkb787]

Doing some more research.... got a few more ideas. What's you guys opinion on the double batmo s475 for my truck? How well will my cp3 keep up? I hear they spool very well with the batmo wheels in them. Even better than a billet s472 I hear. My other option is a smeding diesel s472. They have a killer price with a billet wheel when they come to rudys. Thoughts?

 

[454ss70]

Honestly looking at your current mods and being on a tighter budget i would just leave it the way that it is or at most do a s300 configuration, but even a s366 is enough to bend rods and destroy your engine(just had a customer last year on stock turbo built trans tune bend every rod in the engine similar setup to your current mods but had s366 turbo).
As far as a s475 as a single its not bad but my lbz has twin pumps and 60% over injectors, it dynoed at 739rwhp with stock exhaust manifolds, heads, and some home made y bridge with a boost leak. I upgraded heads, manifolds and new y bridge and it came to life even more then i broke the crank, but something had to give.
Drive ability of the truck was good, not a laggy pig, pulled my 24ft tilt car trailer with my skid loader on it and it did well just have to watch your gear and stay on top of the turbo and watch egts a little more. Daily driving it was fun and mileage was still in the 19-20mpg on the highway.

 

[zakkb787]

I am on a budget right now but I'll be saving cash for this. Just wondering what route to go. I don't really want an s3xx. Heard too many complaints about them blowing. I know it'll blow eventually with the 475. But that's why I want such a big turbo to keep the torque out of it to keep the rods as happy as can be. Which is still not happy haha towing isn't really an issue for me. Don't tow much. Any insight on the batmo turbo vs billet vs cast spoolip?

 

[kiwilml]

No insight on the spooling difference in between them but if you think you are gonna build the motor later and need more air, I would consider a 466 or 64 with a 87 turbine so if want to compound later with a 483 or something it would work good..

Just my opinion of course and lots of people on here that know more about all that then me, so correct me if that's not a good idea..

 

[zakkb787]

No insight on the spooling difference in between them but if you think you are gonna build the motor later and need more air, I would consider a 466 or 64 with a 87 turbine so if want to compound later with a 483 or something it would work good..

Just my opinion of course and lots of people on here that know more about all that then me, so correct me if that's not a good idea..

First off lemme say that if I had the money the truck you're selling would be mine cause that's a freakin nice ride

Back on subject. The reason I want such a big turbo is keeping the stock bottom end healthy. Since bigger turbos don't spool as good they keep the torque out of the engine. Less torque down low means I keep my rods longer. Plus good tuning as well. The 64 or 66 spoils faster which means a punch or torque which means bye bye rods out the block. Like I've said I don't really tow. It's more of a weekend toy as I drive the van to work daily. Twins possibly are in the future but after a built motor with twin pumps and injectors and AF cam. Really like to step into the >100 size turbos. To say I did.