Ford GT Engine (interesting boost setup)
11-12-2003, 03:51 PM
#1
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Ford GT Engine (interesting boost setup) The new Ford GT as we all know has a boosted Ford V8 engine.
I find it interesting, that it's rated for 500hp, makes 12 lbs of boost, and has 8.4:1 compression. Anyone have the bore and stroke of the motor handy? Is the block the same one that is in the Lightning or the 03 Cobra? It's air to water intercooled as well.
Car weighs 3400 raceweight? and went 11.8@123 in magazine testing.
My point is that this an interesting example of how to make 500hp on pump gas.
What do you guys think?
I find it interesting, that it's rated for 500hp, makes 12 lbs of boost, and has 8.4:1 compression. Anyone have the bore and stroke of the motor handy? Is the block the same one that is in the Lightning or the 03 Cobra? It's air to water intercooled as well.
Car weighs 3400 raceweight? and went 11.8@123 in magazine testing.
My point is that this an interesting example of how to make 500hp on pump gas.
What do you guys think?
11-12-2003, 04:14 PM
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I think it has the lightning engine.
In the multimedia section they have the Top Gear video of it.
Wonder who is going to be the first to put a whipple on it.
Awesome car!!
In the multimedia section they have the Top Gear video of it.
Wonder who is going to be the first to put a whipple on it.
Awesome car!!
11-12-2003, 04:16 PM
#3
that motor is a marvel considering that it has to be warrantied and supported for a LOT of miles and still make that kind of power. now i know that most wont drive it everyday like a fbody. but still, it is a mass produced (for the most part) motor, not a one off tuner built setup. the 32 valve head and that much cfm from that blower is a great combination of streetable power. i bet 10s (if drag racing is there thing) would be EASILY done with just the normal bolton pulley, computer, etc mods. also when someone wants to turn 20+ psi that thing will make some SICK top speed.
11-12-2003, 04:17 PM
#4
it is pretty far from a L motor, other than it shares the same cubic inch. it is a true fully forged motor with 32 valve heads and i am pretty sure an aluminum block. the L has none of these. it is more of a cobra motor with more cubes and more boost.
11-12-2003, 10:47 PM
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Originally Posted by gator's 99TA
it is pretty far from a L motor, other than it shares the same cubic inch. it is a true fully forged motor with 32 valve heads and i am pretty sure an aluminum block. the L has none of these. it is more of a cobra motor with more cubes and more boost.
The Ford GT has a 5.4L aluminium engine with 32V heads and a screw type blower unlike the other blower Ford Engines that use roots type blowers.
It's too bad a whipple charger won't fit on an F-body since it's the most effiecent blower design and doesn't suffer the downfalls of a roots blower or centrifugal.
The C5 guys could get a whipple to fit and work much better than the current Magnuson but no one seems interested even though it's a big improvement. Maybe the upcoming GTO guys will look into this more since it's already been done on the Holden Monaro.
11-13-2003, 12:07 AM
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Wow it already comes with a screw blower?
From the vid it looks like the roots type blower. The casing looks like two parallel cylinders. The screw blower, at least the ones I have seen up to now, has a box shape i.e. Kenne Bell and Whipple.
From the vid it looks like the roots type blower. The casing looks like two parallel cylinders. The screw blower, at least the ones I have seen up to now, has a box shape i.e. Kenne Bell and Whipple.
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11-13-2003, 12:38 AM
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If your talking about the motor on the cover of hot rod magazine then it is a 5.4 L (331 roughly) all aluminum DOHC motor. All forged bottom end with I believe 8.5:1 compression. I am not sure if it is a single screw roots style blower or twin screw but it is for sure a roots style blower. It is said to make 500 hp in the magazine but not sure on how much boost. I would definlty say though that with the simple pulley, ECM, fuel mods some serious boost will be possible along with some serious HP.
11-13-2003, 01:16 AM
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According to this article it's an Eaton screw type blower. Talks about the engine at the bottom of page 1.
http://www.motortrend.com/roadtests/...2_0303_fut_gt/
http://www.motortrend.com/roadtests/...2_0303_fut_gt/
11-13-2003, 02:41 AM
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The 5.4 motor is a stout piece....i remember a few years ago when Granatelli was sponsored by Summit Racing and they had a stock 5.4 motor untouched except different pistons and rods (stock crank). Put that motor in a Pro 5.0 chassis and a 100mm turbo and it went like 7.20s with just different rods/pistons
11-13-2003, 08:36 AM
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it already clocks 200mph...
if it was geared for a 1/4 mile i'm sure it would do low 11s.
undersquare is the understatement of the year, but they make it work somehow, and the thing has top end..
if it was geared for a 1/4 mile i'm sure it would do low 11s.
undersquare is the understatement of the year, but they make it work somehow, and the thing has top end..
11-13-2003, 03:35 PM
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Originally Posted by Pro Stock John
Sweet link!!!
Why is Ford going so undersquare with stuff, is that smaller bore more reliable with boost?
Why is Ford going so undersquare with stuff, is that smaller bore more reliable with boost?
I think I also read that they had to move up to a screw blower because the roots blower wasn't meeting their hp goals. Maybe it made the power just not at a low enough boost level to be reliable.
Here a comparison of roots vs screw type blowers:
http://www.kennebell.net/techinfo/ge...romcatalog.pdf
http://www.kennebell.net/techinfo/fo...obra03dyno.pdf
http://www.kennebell.net/media/articles/SNAKEBITE.pdf
Comparison of screw vs cetrifugal blowers:
http://www.whipplesuperchargers.com/....asp?PageID=68
11-14-2003, 06:23 PM
#16
while on the topic of undersquare, these motors, when they make more boost that stock (bolton 475 rwhp/480rwtq in the cobra form) make INSANE area under the curve. teh early tq is something no ls1 centrifigal blower car could dream of. dangit. wish GM would do it but they wont ever/
11-14-2003, 08:45 PM
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The supercharger is a Eaton built twinscrew with the Eaton vacuum operated bypass valve and big heat exchanger built into the intake manifold.It's a really trick supercharger setup added to a no compromise engine setup.I guess when you are designing a $150,000 car,you can build an engine with premium components.That 5.4 bears about as much resembalance to a production Ford truck engine as a Viper V10 does to a Dodge truck V10.
Last edited by whitt1; 11-14-2003 at 08:52 PM.
11-15-2003, 09:38 PM
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Originally Posted by sscam68
Wow it already comes with a screw blower?
From the vid it looks like the roots type blower. The casing looks like two parallel cylinders. The screw blower, at least the ones I have seen up to now, has a box shape i.e. Kenne Bell and Whipple.
From the vid it looks like the roots type blower. The casing looks like two parallel cylinders. The screw blower, at least the ones I have seen up to now, has a box shape i.e. Kenne Bell and Whipple.
11-16-2003, 07:52 AM
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Smaller bore = less emissions and smaller area for flame front to propogate.
Roots is more like a fan. An air mover, which, incedentally was the reason the Roots brothers designed it... To move air in mine shafts.
The screws are true compressors.
SC-
Roots is more like a fan. An air mover, which, incedentally was the reason the Roots brothers designed it... To move air in mine shafts.
The screws are true compressors.
SC-