billet s366 vs. fmw468

617mach 1x · Oct 28, 2013

hey guys just wondering what you think of these turbos?

truck has normal stuff and

fuelab fuel system
205/100 injectors
ported intake

getting ported heads, worked over exhaust, stage one cam, built trans

looking for 650+, with ok spool time

smoker00 · Oct 28, 2013

With that setup i would go with the 468... a little slower to spool...

slc dzl · Oct 28, 2013

If it were me I would put the money used to port the heads towards getting a efr 9180.
There is a thread with decent numbers coming from that turbo and the response is supposed to be awesome.

Sully · Oct 28, 2013

68mm vgt with 205s it'd be right at 650.decent spool and it drops in with no adapters.rcd has a wicked cnc program for heads now too.joshs Orange truck with 205s and a box stock powermax smokes like a stock truck.

617mach 1x · Oct 28, 2013

slc dzl said:
If it were me I would put the money used to port the heads towards getting a efr 9180.
There is a thread with decent numbers coming from that turbo and the response is supposed to be awesome.

yea saw that, was reading that, the 67.7 fmw is the same comp. wheel and with the cam and porting i should be able to spool it pretty quick

Sully said:
68mm vgt with 205s it'd be right at 650.decent spool and it drops in with no adapters.rcd has a wicked cnc program for heads now too.joshs Orange truck with 205s and a box stock powermax smokes like a stock truck.

looking to go t4, also have no choice to make new up-pipes to clear my fuel system RR, the 90* is really close to touching the up-pipe i had to dent the stock pipes to clear it

slc dzl · Oct 28, 2013

For me the amount of money on ported 6.0 heads doesn't seem worth it , but if there is new info about ported 6.0 heads I would like to hear it.

Josh@DirtyDiesels · Oct 28, 2013

slc dzl said:
For me the amount of money on ported 6.0 heads doesn't seem worth it , but if there is new info about ported 6.0 heads I would like to hear it.

In for more info on heads too

617mach 1x · Oct 28, 2013

sorry, should've explained that more, i will be porting these! ive done sleds, ford 429 etcs,

ill be doing the same with my 6.0 as i did with the 429

ill be getting ported section of head and transfer that to myheads. also sonic test for thickness, guy im working with on this has ported many 6.0s and is working with another world known porter, details will be let out after everything comes together

the section i get will be flowed etc,, might do 6.4 exhaust valves depending on the cash flow and machining cost

this truck will end up a 2.6 pull truck in a few years if its not to outdated

2wd-fire · Oct 28, 2013

I have 205 and regular 66 and spool is fine so good infact I'm gonna switch to 472 here soon

Josh@DirtyDiesels · Oct 28, 2013

617mach 1x said:
sorry, should've explained that more, i will be porting these! ive done sleds, ford 429 etcs,

ill be doing the same with my 6.0 as i did with the 429

ill be getting ported section of head and transfer that to myheads. also sonic test for thickness, guy im working with on this has ported many 6.0s and is working with another world known porter, details will be let out after everything comes together

the section i get will be flowed etc,, might do 6.4 exhaust valves depending on the cash flow and machining cost

this truck will end up a 2.6 pull truck in a few years if its not to outdated

It's a 6.0. It's BEEN outdated

Tyler@Street Diesel Performance · Oct 29, 2013

dzlpwr said:
It's a 6.0. It's BEEN outdated

this is very true josh lol

617mach 1x · Oct 29, 2013

True that! But tuning and company's are still coming out with some wicked new stuff so I'm sure it can be made to compete well (note, I didn't say dominate!)

SEABEE08FX4 · Oct 29, 2013

We have a 66mm Powermax that would be a strait drop in and a good match for those injectors. Nothing else would need changing, we also have a FMW 71mm Powermax though thats not a 2.6 turbo obviously.

slc dzl · Oct 29, 2013

617mach 1x said:
sorry, should've explained that more, i will be porting these! ive done sleds, ford 429 etcs,

ill be doing the same with my 6.0 as i did with the 429

ill be getting ported section of head and transfer that to myheads. also sonic test for thickness, guy im working with on this has ported many 6.0s and is working with another world known porter, details will be let out after everything comes together

the section i get will be flowed etc,, might do 6.4 exhaust valves depending on the cash flow and machining cost

this truck will end up a 2.6 pull truck in a few years if its not to outdated

Definitely keep us informed on how the head porting goes.

JDub · Oct 29, 2013

617mach 1x said:
yea saw that, was reading that, the 67.7 fmw is the same comp. wheel and with the cam and porting i should be able to spool it pretty quick

Remember the turbine side is much different though. The S366 uses a 73mm turbine wheel, the 9180 does as well, except that it uses a much lighter Gamma-Ti turbine shaft, so it is about 1/3 the weight of a standard 73mm shaft, so it spools much quicker. The S467.7 you're talking about uses a 83mm turbine. So while the compressor sides are very similar, the different turbine wheels will really affects how it drives. The 73mm will be more responsive but have a higher drive pressure. S467 is going to spool slower, but most likely have a stronger topend and better EGT's. So think about where you'll want to make the power...

Like Eric says though, it sounds like their new 66 and 71 Pmax turbos are working quite well.