What hp will it make?

Timmy · Jul 19, 2014

DocBar said:
I've never ran or rode anything with Swamps tuning, but they are one of the best shops in the country.

It's hard to go wrong with PHP tunes. In my personal experience, Gearhead tuning is great. You should consider them.

I like gearhead tunes, ran them on my last zf6 f350

emev0l · Jul 19, 2014

njjeep said:
My truck ran 12.9 with 250/200's and S468.

I was wondering how much nitrous would be safe with an S468 with no waste gate ?

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Don't spray without a wastegate

emev0l · Jul 20, 2014

An s475 is a better matched turbo for 400/400's but yer gonna kill forged rods

Timmy · Jul 20, 2014

emev0l said:
A s468 fmw will outflow a box s471.

I wouldn't run 400/400's with a s468 without a wastegate.

Smaller exhaust housings help spool a turbo faster.

Why would I want to wastegate the s486 with the 400/400? To keep the back pressure in check?

Would it be better to run a bigger exhaust housing to keep the torque down and save the stock rods? Just learning as this is my first diesel build, thanks for the advice so far!

silverpsd_06 · Jul 20, 2014

You're not gonna be able to get on top of that charger fast enough to snap rods I wouldn't think. It's gonna be a smokey laggy pig, get a really dialed in daily driver tune and leave it there until you want to play. I've had 275'/200's with a zf6 and a s466, always hazed, if you sneezed on the pedal wrong it would smoke, egt's never were under 1000 at any point in time. Not so much fun to daily drive but when the s400 lit up it was a grin for sure. Good luck personally i'd give matt@gearhead a try first

buschpoweredstroker · Jul 20, 2014

My pull truck has been on a 250xxx stock bottom end for a while with FFD 400/400's, gen3, a 482 with ported race cover and 220+ shot of Nos .... it's not a daily driver but it's still legal and I take it for a drive every once in a while...I snapped a BTS intermediate shaft during a pull but the motor is still going. Sorry, can't help you with the hp numbers. PS- I had a 472 with the 400's before and even with the nitrous it was still super smokey, I would definetly go with a bigger charger but drop your exhaust side down a lot to help with the lag. A BB turbo such as a GT 42 or 45R series is probably going to make a better daily driver for you than 400 series turbo because it will spool faster.

spongebob915 · Jul 20, 2014

Can you run 400/400 without a. Wastegate?

buschpoweredstroker · Jul 20, 2014

mine's non wastegated... my 472 was also and that was on for a long time, no issues, and is currently on a friends dd, still no issues.

bruce · Jul 20, 2014

i would just send the injectors back and have some 200% nozzles put on them

spongebob915 · Jul 20, 2014

I have a gtx4202r maybe I can get away without having a Watergate. Thinking about going to 400/400

spongebob915 · Jul 20, 2014

I'll Trade you your 400/400 for my 300/200.

smoker00 · Jul 20, 2014

I say Run it.. not sure if you will have enough oil but monitor it and see.. also BP..And see what its doing..

And what i would do if the 400 nozzles. Are not working out go to some 2s

I would hope to see you in the 600+ a little..

Good luck withe the build... have fun with it..

V-Ref · Jul 20, 2014

There's no single turbo that can clean up 2.3 ms of fuel from either a 200% or a 400% nozzle...so don't be chasing a single turbo that doesn't exist.

That said. ..that 468. ..is a damn tough turbo that you can rebuild for cheap as long as you don't tear up a comp wheel.

I'd just call your live tuner of choice and schedule the appointment. ...as 400% in a DD are definitely gonna need some tweaking.

And like Bruce said above. ..I'd either swap the 400% nozzles for 200%....or keep the 400% but get bigger oil in there (gen3, duals, 150+% Stealth pump)....cause you're gonna run into dc% issues with a single pump and big nozzles.

Smoker00 advice is gtg too...just run it and see....just keep in mind the points listed in my post and above it.

That s468 is gonna get lively around 1750-1900 rpm depending on tuning....but it's gonna need some help (atmosphere turbo or nitrous) to clean up 400% nozzles (even 200% nozzles)

Groomzybanshee · Jul 20, 2014

V-Ref said:
There's no single turbo that can clean up 2.3 ms of fuel from either a 200% or a 400% nozzle...so don't be chasing a single turbo that doesn't exist.

That said. ..that 468. ..is a damn tough turbo that you can rebuild for cheap as long as you don't tear up a comp wheel.

I'd just call your live tuner of choice and schedule the appointment. ...as 400% in a DD are definitely gonna need some tweaking.

And like Bruce said above. ..I'd either swap the 400% nozzles for 200%....or keep the 400% but get bigger oil in there (gen3, duals, 150+% Stealth pump)....cause you're gonna run into dc% issues with a single pump and big nozzles.

Smoker00 advice is gtg too...just run it and see....just keep in mind the points listed in my post and above it.

That s468 is gonna get lively around 1750-1900 rpm depending on tuning....but it's gonna need some help (atmosphere turbo or nitrous) to clean up 400% nozzles (even 200% nozzles)

I beg to differ on the single turbo cleaning up 2.3 ms on a 200%.

I had a set of 350/200s and my charger cleaned them up to a very light haze.

Steve's red stroker · Jul 20, 2014

I'm in almost the same boat, have 400/400's, just not sure what turbo to go with, as I want it to be streetable. Leaning towards a ball bearing garrett

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emev0l · Jul 20, 2014

Timmy said:
Why would I want to wastegate the s486 with the 400/400? To keep the back pressure in check?

Would it be better to run a bigger exhaust housing to keep the torque down and save the stock rods? Just learning as this is my first diesel build, thanks for the advice so far!

Yes, that's exactly what a wastegate will do, keep bp in check.

I'm sure with live tuning they can make 400/400's behave, but there gonna be de-tuned for that charger, an amazing setup would be 300/200's and a gtx4294r, but for a lot cheaper the s468 fmw with a .90 housing and a wastegate would get it done. You can't completely clean up 300/200's with a gtx4294r without spray.

TyCorr · Jul 20, 2014

emev0l said:
Yes, that's exactly what a wastegate will do, keep bp in check.

I'm sure with live tuning they can make 400/400's behave, but there gonna be de-tuned for that charger, an amazing setup would be 300/200's and a gtx4294r, but for a lot cheaper the s468 fmw with a .90 housing and a wastegate would get it done. You can't completely clean up 300/200's with a gtx4294r without spray.

Th3 op wont even tickle the 400% nozzles with that 468. They will be waaay detuned.

spongebob915 · Jul 20, 2014

I had the gtx4294r with 300/200 gearhead tuning it smoked very little. Great for a dd.zero lag.just put on a gtx4202r

TyCorr · Jul 20, 2014

spongebob915 said:
I had the gtx4294r with 300/200 gearhead tuning it smoked very little. Great for a dd.zero lag.just put on a gtx4202r

Isn't that similarly sized to the 468? Do you think it may have been pulled back a hair? A 400/400 and 300/200 will fuel that charger "a little" differently either way. Most compound trucks emoke like crazy with those in any tune that utilizes that fuel. I realize some of the self tuners are driving around clean but this doesnt appeaf to be the case for the op.

I may be way wrong so sorry if I am.