Modified V10 vs Modified PSD
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Former Vendor
Joined: Mar 2004
Posts: 4,362
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From: Hendersonville, NC
Modified V10 vs Modified PSD
Since we already have a thread for arguing how a stock v10 compares to a stock 6.0, I figured that since far more than half of the PSD owners here have modified their vehicles, we need a thread for that also 
Since, obviously, the "on paper" version of things seems to be what most people are using for comparison, let's do some "on paper" comparison to the power outputs of modified v-10s (blowers, chips, exhaust, ect.) to the power outputs of modified PSD's (tuners, modules, propane, water/meth, ect). While we are all at it, lets throw unloaded mileage, towing mileage and cost of modifications in the mix of the debate too. Dyno charts, track time slips, mileage information and all other forms of "on paper" information are welcome
I would imagine everyone would like to start with their comments and information on the Predator?
Since, obviously, the "on paper" version of things seems to be what most people are using for comparison, let's do some "on paper" comparison to the power outputs of modified v-10s (blowers, chips, exhaust, ect.) to the power outputs of modified PSD's (tuners, modules, propane, water/meth, ect). While we are all at it, lets throw unloaded mileage, towing mileage and cost of modifications in the mix of the debate too. Dyno charts, track time slips, mileage information and all other forms of "on paper" information are welcome
I would imagine everyone would like to start with their comments and information on the Predator?
Last edited by PSD 60L Fx4; Oct 1, 2004 at 09:24 AM.
Cargo Master
Joined: Jun 2003
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From: Carlsbad, California
SCMT for me. I posted time slip info earlier in the SCMT thread but may get time this weekend to scan the slips and post on my gallery.
In short, two runs stock and two runs on high power. First run stock I creeped through the trap as I was powerbraking and red lighted but the MPH for both stock runs were withing tenths of each other so I assume the ETs were the same too 16.0 flat. On High Performance tune again the two runs were the same within 5 thousandths of a second at 14.33x seconds and 93.5 - 94 MPH. 60 foot times on HP mode were 1.9 s.
But because I haven't made it to a dyno day to show stock and SCMT torque and HP numbers, the above performance gain is all smoke and mirrors and didn't really happen, can't be believed, according to some of the Predator crowd
One of these days I'll break down and find a dyno somewhere down in SD that can handle the PSD.
In short, two runs stock and two runs on high power. First run stock I creeped through the trap as I was powerbraking and red lighted but the MPH for both stock runs were withing tenths of each other so I assume the ETs were the same too 16.0 flat. On High Performance tune again the two runs were the same within 5 thousandths of a second at 14.33x seconds and 93.5 - 94 MPH. 60 foot times on HP mode were 1.9 s.
But because I haven't made it to a dyno day to show stock and SCMT torque and HP numbers, the above performance gain is all smoke and mirrors and didn't really happen, can't be believed, according to some of the Predator crowd
One of these days I'll break down and find a dyno somewhere down in SD that can handle the PSD.
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If anyone is willing to post their dyno plots, I can do the paper analysis on modified V-10 vs modified PSD.
Or ...
give me your best estimate with a couple of known or estimated points, and I'll complete the curve well enough to do this analysis.
Or ...
give me your best estimate with a couple of known or estimated points, and I'll complete the curve well enough to do this analysis.
Senior User
Joined: Mar 2004
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From: San Diego, CA
One thing I know for sure is it will cost a LOT less to pump up a diesel. For about $1000 in mods, I am putting down about 425HP and 750 ft/lbs at the wheels. On top of that, my mileage went up to 17-18 MPG. Let's see a gasser do that!
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Originally Posted by MaXRSmart
One thing I know for sure is it will cost a LOT less to pump up a diesel. For about $1000 in mods, I am putting down about 425HP and 750 ft/lbs at the wheels. On top of that, my mileage went up to 17-18 MPG. Let's see a gasser do that!
+1..............!
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Former Vendor
Joined: Mar 2004
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From: Hendersonville, NC
Originally Posted by MaXRSmart
One thing I know for sure is it will cost a LOT less to pump up a diesel. For about $1000 in mods, I am putting down about 425HP and 750 ft/lbs at the wheels. On top of that, my mileage went up to 17-18 MPG. Let's see a gasser do that!
That was the whole point of this thread; I was in a smart-aleky mood when I posted it, but have come since to realize that it will actually be of some use.
Senior User
Joined: Mar 2004
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From: San Diego, CA
Even if you take the option money you save from buying a V10 and apply it towards a supercharger, I you still don't think you would match the power of a chiped diesel. Plus the already bad mileage of the V10 would drop even more. Around San Diego right now, Premium gas is $2.55 per gallon! 
The cost of diesel is $2.19.
The cost of diesel is $2.19.
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Former Vendor
Joined: Mar 2004
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From: Hendersonville, NC
Originally Posted by PowerStroke King
If anyone is willing to post their dyno plots, I can do the paper analysis on modified V-10 vs modified PSD.
Or ...
give me your best estimate with a couple of known or estimated points, and I'll complete the curve well enough to do this analysis.
Or ...
give me your best estimate with a couple of known or estimated points, and I'll complete the curve well enough to do this analysis.
A modified 2005 model V-10 is going to be hard to find at this point; Very few of them are even in existance right now, much less ones with blowers or the sort...chips are not even available right now.
For now, I suppose, we can use 2004 information.
Elder User
Joined: Apr 2004
Posts: 552
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From: Midland, TX
I think it would be very hard and expensive to get a v10 to run with a modded PSD. I had a gasser in the past and tried headers, intake, tunning, and exhaust and the difference was minimal. I've spent less money on my 6.0 for far greater results.
A supercharger would help but they take about 20-40 hp to turn them and get the maximum benifit from them. So your only making a little bit of ground and taking a step back too.
There is ways to get the v10 to run with it, blower, dry shot, tunning and other junk. But its gonna take some dough.
I bet a custom tune would work pretty decent, a lot better than those programmers. Gassers need custom tunes rather than a general tune like most companies sell.
A supercharger would help but they take about 20-40 hp to turn them and get the maximum benifit from them. So your only making a little bit of ground and taking a step back too.
There is ways to get the v10 to run with it, blower, dry shot, tunning and other junk. But its gonna take some dough.
I bet a custom tune would work pretty decent, a lot better than those programmers. Gassers need custom tunes rather than a general tune like most companies sell.
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Former Vendor
Joined: Mar 2004
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From: Hendersonville, NC
Originally Posted by Todder
I think it would be very hard and expensive to get a v10 to run with a modded PSD. I had a gasser in the past and tried headers, intake, tunning, and exhaust and the difference was minimal. I've spent less money on my 6.0 for far greater results.
A supercharger would help but they take about 20-40 hp to turn them and get the maximum benifit from them. So your only making a little bit of ground and taking a step back too.
There is ways to get the v10 to run with it, blower, dry shot, tunning and other junk. But its gonna take some dough.
I bet a custom tune would work pretty decent, a lot better than those programmers. Gassers need custom tunes rather than a general tune like most companies sell.
A supercharger would help but they take about 20-40 hp to turn them and get the maximum benifit from them. So your only making a little bit of ground and taking a step back too.
There is ways to get the v10 to run with it, blower, dry shot, tunning and other junk. But its gonna take some dough.
I bet a custom tune would work pretty decent, a lot better than those programmers. Gassers need custom tunes rather than a general tune like most companies sell.