Word on the Street: F-150 5.0L On the Way!!
07-12-2010, 07:20 PM
#11
Ex Badge Bunny
I would rather have a quick spool. Turbo lag sucks, and you really notice it when racing. Or in the case of a big truck, pulling a load. My S60 put out 11 lbs. of boost... when it spooled up by 2500 RPM. I'd much rather have that boost at a grand or so.. Can't wait to test drive an Ecoboost F150.
The 6.4 Power Stroke has a fantastic turbo setup. I get giddy every time I look at it.
The 6.4 Power Stroke has a fantastic turbo setup. I get giddy every time I look at it.
I 2nd that! We will hopefully be bringing home a new F450 pretty soon
07-12-2010, 09:15 PM
#12
Devil's advocate
lol
07-12-2010, 11:27 PM
#14
Ex Badge Bunny
07-12-2010, 11:30 PM
#15
Ex Badge Bunny
We have a 2006 F350 right now to haul the 40ft bumper-pull (and it does it with no problems), but it's time to upgrade to a dually
The thing will haul a house... LOL
07-12-2010, 11:43 PM
#16
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I really don't get you guys wanting a high revving engine. Ever notice how they build 18 wheelers? Nearly all of them have a straight 6. They max out around 2500-2700 rpm and run forever. To me high revving = high maintenance. They physics of the stoke on a straight 6 give it a natural power advantage over a v-8. Call me crazy but the 08-10 SD powerstroke is a pile. I do not know of one that has not had many problems and gotten about 8 mpg. This has just been my personal experience and I would much rather have ford find a way to put a straight 6 in their SD diesel trucks.
07-12-2010, 11:57 PM
#17
Ex Badge Bunny
^Hmm, haven't heard much neg about the new SD... I do know that they are working out some kinks (like all new engines), but nothing major. Our buddy has one, and tows his 16,000lb trailer around. Yeah, it's only got a couple thousand miles on it (not enough to tell if anything major is going wrong with it), but like I said, it's a new engine... it will be the truck to beat 
07-13-2010, 07:37 AM
#18
Senior Member
Why Twin Turbo when you can just go w/ a GT3788R (.89)? The 4.6 is purrrrfect for that turbo. And personally, I wouldnt want a quick spool turbo, cuz then you are fully spun up before you are redlined. Diesels dont have quick spools, unless they are modded for performance. Plus, in diesels, when you do turbo upgrades, its just that, an UPGRADE, and not downgrade, which would give you a quicker spool. Sure, its nice to have all the power/torque right away, but you limit yourself. Maybe twin 3572's on the 5.0, w/ .72 housing would be a righteous beast (sorry if I lost anyone).
But if you have a quick spooler and a slower one... then you have lots of torque and power all over the band. Bigger turbos make more power, but take longer to spool. You don't get the torque as quickly, which when towing is what matters.
You want to be fully spooled before red line... because when you shift the blow off valve lets off all that pressure. You want to be spooled early if you are looking to get more torque for towing (you can't really 1:1 compare gas turbo to diesel turbo setups, they are just different animals).
07-13-2010, 07:42 AM
#19
Senior Member
I don't really have a NEED... but boy to do I want it!
I really don't get you guys wanting a high revving engine. Ever notice how they build 18 wheelers? Nearly all of them have a straight 6. They max out around 2500-2700 rpm and run forever. To me high revving = high maintenance. They physics of the stoke on a straight 6 give it a natural power advantage over a v-8. Call me crazy but the 08-10 SD powerstroke is a pile. I do not know of one that has not had many problems and gotten about 8 mpg. This has just been my personal experience and I would much rather have ford find a way to put a straight 6 in their SD diesel trucks.
I had not heard that about straight 6 configurations. Could you elaborate or point me to some information? I have always associated more cylinders with lower revs. I know that it isn't always the case but for the most part, especially with NA engines it is.
07-13-2010, 08:27 AM
#20
Member
Let me clarify a few things since so many care to copy/paste my twin turbo vs single comments:
I understand all the reasoning for wanting a quick spool, but, no one ever said anything about towing, we were just talking about a turbo on a truck, correct?
All my remarks are from personal investigation on what to put on my truck. I have done research over the last 2 yrs on what it would take to put a turbo, custom build, into my truck. I have my SCT tuner now, so all I need is pipe, turbo, and accessories.
The reason I mentioned the gt3788r is because that is the turbo I have pegged for my truck. If you crunch the numbers for the 4.6, you will see that this turbo will start to really come into play around 23-2500, and last all the way to 5700. Now, why would I want this to spool so late? My truck is still a daily driver. It is by no means a TOW RIG. It does its weekly duties hauling loads in the bed, and once or twice a yr I let her tow something almost out her class. But, it is still a daily driver. This RPM range will allow you to remain as a daily driver, not burning tires just to change lanes, but is there in case you put the hammer down. Sure, twin turbos are nice, but in the gas trucks, w/ the upgraded injectors, you just burn gas like an RV.
Thats just my reasoning... and by no means is it right for all.
I understand all the reasoning for wanting a quick spool, but, no one ever said anything about towing, we were just talking about a turbo on a truck, correct?
All my remarks are from personal investigation on what to put on my truck. I have done research over the last 2 yrs on what it would take to put a turbo, custom build, into my truck. I have my SCT tuner now, so all I need is pipe, turbo, and accessories.
The reason I mentioned the gt3788r is because that is the turbo I have pegged for my truck. If you crunch the numbers for the 4.6, you will see that this turbo will start to really come into play around 23-2500, and last all the way to 5700. Now, why would I want this to spool so late? My truck is still a daily driver. It is by no means a TOW RIG. It does its weekly duties hauling loads in the bed, and once or twice a yr I let her tow something almost out her class. But, it is still a daily driver. This RPM range will allow you to remain as a daily driver, not burning tires just to change lanes, but is there in case you put the hammer down. Sure, twin turbos are nice, but in the gas trucks, w/ the upgraded injectors, you just burn gas like an RV.
Thats just my reasoning... and by no means is it right for all.
