Cammer engine?
- Thread starter johnny_engstrom
- Start date
Isn't the RF available with a 4.6? If it has enough clearance for the DOHC heads, the cammer should physically bolt in, but there might be some interference with the intake manifold.
Or else, you could go to your Ford dealership and get a new Ford GT with the mother of all cammer engines, the all aluminum 550+hp supercharged 5.4 liter.
Or else, you could go to your Ford dealership and get a new Ford GT with the mother of all cammer engines, the all aluminum 550+hp supercharged 5.4 liter.
Ron Earp
Admin
I have to say, I've never been a fan of that motor (mod motors) but I do like it in my Lightning. We dynoed 365 rwhp at 445 ft/lb torque - STOCK! I've got a pulley to raise boost from 8lbs to 14lbs and we'll fatten it up on the fuel side to be safe, I think it'll be in the 12s, mid 12s too, with that single change if we can get it to hook up.
Big motor though, a 385 series with a blower would go in there nicely and make a bunch more power. But, the mod motor is smooth and has a very flat torque curve. All in all, I like it despite the bad things I say about them.
The Lightning motor is only a 2V head motor with a roots Eaton blower, so it is quite different from the 4V GT motor with the screw type compressor. Still, similar DNA and I'm damn suprised how well a 4800lb truck will go and handle!
Big motor though, a 385 series with a blower would go in there nicely and make a bunch more power. But, the mod motor is smooth and has a very flat torque curve. All in all, I like it despite the bad things I say about them.
The Lightning motor is only a 2V head motor with a roots Eaton blower, so it is quite different from the 4V GT motor with the screw type compressor. Still, similar DNA and I'm damn suprised how well a 4800lb truck will go and handle!
I guess it is that time of the thread. Please see my picture comparing 5.0L vs. 5.0L cammer
I think RF has fitted the cammer beast. CAV has fitted one 427 FE.
I think RF has fitted the cammer beast. CAV has fitted one 427 FE.
Howard Jones
Supporter
Gary I think that we should use this picture for our GT40s.com logo at the top right hand of the web page.
Other than smog requirments I see no reason to put one in a GT 40.
Other than smog requirments I see no reason to put one in a GT 40.
I like my Lightning motor too but part of the very essence of the GT40 is that it is very much a street legal race car? If you want refinement why not buy a Porsche?
Lynn Larsen
Lynn Larsen
I hear that the 3 valve mod motors are the ones that are really going to be da bomb! I have heard a lot of "another mod motor blows up" type stories on other forums. Unfortunately, most are true, but it isn't because its a bad design necessarily. My understantding is that the QC on the torques used on internal components is absolutely for crap! It is an assembly problem not a design problem is what I'v heard.
So if you are going to build the Mod motor yourself and blueprint it and assemble it with a methodical approach and some pride, I see no reason why it wouldn't make a fine motor as long as you have room for it. I would love to have an overhead cam motor, but I don't think they have to be all that to achieve it. On my car, with an enginge box, there is no way all that low hung accessory stuff would fit. I'd have an easier time fitting those broad shoulders than the wide ass
Regards,
Lynn
So if you are going to build the Mod motor yourself and blueprint it and assemble it with a methodical approach and some pride, I see no reason why it wouldn't make a fine motor as long as you have room for it. I would love to have an overhead cam motor, but I don't think they have to be all that to achieve it. On my car, with an enginge box, there is no way all that low hung accessory stuff would fit. I'd have an easier time fitting those broad shoulders than the wide ass
Regards,
Lynn
Lynn Larsen
Lynn Larsen
Hey Ron,
Bye the way a buddy of mine called and said there is a GT at Cross Roads Ford. Want to go take a look at it soon?
Let me know if you'd like to get together to go see it.
Lynn
Bye the way a buddy of mine called and said there is a GT at Cross Roads Ford. Want to go take a look at it soon?
Let me know if you'd like to get together to go see it.
Lynn
Does anybody know if there are "go-fast" parts coming available for these engines? I am interested in mainly the 4.6L 32V Cobra engine (normally aspirated).
Quad cam, 4 valves sounds like a great idea for a GT40 to me. /ubbthreads/images/graemlins/smile.gif Particularly for those of us under strict emissions laws........
Quad cam, 4 valves sounds like a great idea for a GT40 to me. /ubbthreads/images/graemlins/smile.gif Particularly for those of us under strict emissions laws........
There are cams and some companies that will port 4V heads, but the most popular speed part for serious power is a supercharger.
Lynn is right, the 3V is going to be huge. Motor trend did a road test of the 05 mustang with the 3V 4.6 and it did 5.1 seconds 0-60. The heavier 300hp 05 mustang is faster than the lighter, 305hp '04 Mustang Mach 1. I think it also put down 263 rwhp through an automatic. The manual will probably have more like 280-285 rwhp. That is very healthy for a "300hp" engine.
Roush is developing a supercharger for it. It should be an eaton blower with water to air intercooler like the '04 Cobra. That is going to be a great system, but pretty expensive. Kenne Bell should be coming out with a similar setup except a twin screw blower. Turbo kits are going to be awesome.
There are all kinds of parts for the '03-04 Cobra, they are probably going to sell 50 '05+ Mustang GT's for ever supercharged Cobra they ever made, so the aftermarket is going to be huge. It might end up bigger than the 5.0.
As a Mustang owner, I can't wait.
Lynn is right, the 3V is going to be huge. Motor trend did a road test of the 05 mustang with the 3V 4.6 and it did 5.1 seconds 0-60. The heavier 300hp 05 mustang is faster than the lighter, 305hp '04 Mustang Mach 1. I think it also put down 263 rwhp through an automatic. The manual will probably have more like 280-285 rwhp. That is very healthy for a "300hp" engine.
Roush is developing a supercharger for it. It should be an eaton blower with water to air intercooler like the '04 Cobra. That is going to be a great system, but pretty expensive. Kenne Bell should be coming out with a similar setup except a twin screw blower. Turbo kits are going to be awesome.
There are all kinds of parts for the '03-04 Cobra, they are probably going to sell 50 '05+ Mustang GT's for ever supercharged Cobra they ever made, so the aftermarket is going to be huge. It might end up bigger than the 5.0.
As a Mustang owner, I can't wait.
The 5.0L cammer is $20k. We can build a 454 CI (7.5L) all aluminium 351W based engine weighing in at ~375 lbs and ~$13k. I am not sure what the point is of the extra cams, size and $7k?
Ron Earp
Admin
The cammer motors already have a huge following, in Mustangs, Lightnings, and regular trucks. Parts are a plenty and cheap. A lot of the "blown up mod motors" are of the Lightning and 03/04 Cobra supercharged design where idiots crank up the boost without doing anything else. But, there have been a large number of NA failures in the pre-03 Cobras too.
Still, you can't beat the pushrod motor for weight, power, and price. The mod motors are just too dang big. Why, pray tell, do I need SOHC designs on the 5.4 long stroke truck motor so that it can have a 5200 RPM red line?
The question, however, is answered in that they do fit and can be made to work. But, I would counter that if you used a pushrod motor, used ALL the smog stuff (air injection into the heads, EGR, not to mention cats, etc.) as intended they'll pass smog too. Lynn has one setup with the OEM electronics and sensors and if it had cats I bet it'd pass with no trouble. Lot easier than doing the same on the mod motor.
R
Still, you can't beat the pushrod motor for weight, power, and price. The mod motors are just too dang big. Why, pray tell, do I need SOHC designs on the 5.4 long stroke truck motor so that it can have a 5200 RPM red line?
The question, however, is answered in that they do fit and can be made to work. But, I would counter that if you used a pushrod motor, used ALL the smog stuff (air injection into the heads, EGR, not to mention cats, etc.) as intended they'll pass smog too. Lynn has one setup with the OEM electronics and sensors and if it had cats I bet it'd pass with no trouble. Lot easier than doing the same on the mod motor.
R
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And I bet the 3V 4.6 crate motors will be pretty cheap, probably less than $5,000 (possibly with computer, harness and transmission like the $7,000 '01 Cobra crate engine).
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Sure but if you are going on the cheap you can get 5.0L mustang style motors for under $2500.00 I was just saying in terms of $/hp or hp/lb or hp/volume the old push rod setup has the mod motor beat. IMHO.
And I bet the 3V 4.6 crate motors will be pretty cheap, probably less than $5,000 (possibly with computer, harness and transmission like the $7,000 '01 Cobra crate engine).
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Sure but if you are going on the cheap you can get 5.0L mustang style motors for under $2500.00 I was just saying in terms of $/hp or hp/lb or hp/volume the old push rod setup has the mod motor beat. IMHO.
Lynn Larsen
Lynn Larsen
I have to agree with Ron and Gary RE: mod motors in trucks! For just low down grunt in a truck you can't be the ft lb/$ of the pushrod engine and with the mod motor you're just dragging all the other stuff along for the ride.
On the other hand, when you are talking about a power/rpm point that is in the higher end, you are talking about a place you can get to with a push rod engine. But you are talking about a place where the mod motor is starting from. I believe the mod motor will go higher in rpm and power cheaper than a push rod will; maybe not at this moment, but in the near future, without a doubt.
Lynn
On the other hand, when you are talking about a power/rpm point that is in the higher end, you are talking about a place you can get to with a push rod engine. But you are talking about a place where the mod motor is starting from. I believe the mod motor will go higher in rpm and power cheaper than a push rod will; maybe not at this moment, but in the near future, without a doubt.
Lynn
