Blown motor @ 39k Miles need help please!!!
08-09-2007, 02:30 AM
#12
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: Blown motor @ 39k Miles need help please!!!
ORIGINAL: xxkazp3rxx
ehhhhhhhhhhhhhhh you're wrong.... just a fyi...
The 4v low end power is better then the 2v low end power. Its just harder to tell because you have more power on the 4v... the 4v continues to pull whereas the 2v stops thats why... It's just a butt dyno thing, where it feels like it has a crappy low end, but it's not true in the numbers... The motor just builds power longer so it feels longer until you reach full potential, but your making just as much if not more power at the same rpms with a 4v vs a 2v....
ehhhhhhhhhhhhhhh you're wrong.... just a fyi...
The 4v low end power is better then the 2v low end power. Its just harder to tell because you have more power on the 4v... the 4v continues to pull whereas the 2v stops thats why... It's just a butt dyno thing, where it feels like it has a crappy low end, but it's not true in the numbers... The motor just builds power longer so it feels longer until you reach full potential, but your making just as much if not more power at the same rpms with a 4v vs a 2v....
ORIGINAL: JHonor
I did see the Ford Racing had a 1999 and 2000 Cobra motor option. At the time it was a steal; like $5700 with all accessories and a new transmission. The low end sucks on those motors, but they are flywheel rated at 320hp. But if my motor blows, I definitely going forged with ported heads. Anyway, either of those engines will drop right in, but if you end up with a 4 valve, of course you'll have to change out the ECU.
I did see the Ford Racing had a 1999 and 2000 Cobra motor option. At the time it was a steal; like $5700 with all accessories and a new transmission. The low end sucks on those motors, but they are flywheel rated at 320hp. But if my motor blows, I definitely going forged with ported heads. Anyway, either of those engines will drop right in, but if you end up with a 4 valve, of course you'll have to change out the ECU.
So far as the engine, I woudl definatly be looking at local and internet junkyards, often you can find PI 4.6L engines for around 600-1000 bucks complete.
Also, make sure you get at least a 99-04 engine, not a pre 99, as they are NPI (much less power). There were small changes made in 01 1/2 just FYI, different fittings and stuff on the intake side, and a few other things. If I were you, for max easy install, find a 99-01 1/2 (or on safe side 99-00) engine.
08-09-2007, 10:46 AM
#14
5th Gear Member
Join Date: Mar 2007
Location:
Posts: 2,441
RE: Blown motor @ 39k Miles need help please!!!
ORIGINAL: xxkazp3rxx
ehhhhhhhhhhhhhhh you're wrong.... just a fyi...
The 4v low end power is better then the 2v low end power. Its just harder to tell because you have more power on the 4v... the 4v continues to pull whereas the 2v stops thats why... It's just a butt dyno thing, where it feels like it has a crappy low end, but it's not true in the numbers... The motor just builds power longer so it feels longer until you reach full potential, but your making just as much if not more power at the same rpms with a 4v vs a 2v....
ehhhhhhhhhhhhhhh you're wrong.... just a fyi...
The 4v low end power is better then the 2v low end power. Its just harder to tell because you have more power on the 4v... the 4v continues to pull whereas the 2v stops thats why... It's just a butt dyno thing, where it feels like it has a crappy low end, but it's not true in the numbers... The motor just builds power longer so it feels longer until you reach full potential, but your making just as much if not more power at the same rpms with a 4v vs a 2v....
ORIGINAL: JHonor
I did see the Ford Racing had a 1999 and 2000 Cobra motor option. At the time it was a steal; like $5700 with all accessories and a new transmission. The low end sucks on those motors, but they are flywheel rated at 320hp. But if my motor blows, I definitely going forged with ported heads. Anyway, either of those engines will drop right in, but if you end up with a 4 valve, of course you'll have to change out the ECU.
I did see the Ford Racing had a 1999 and 2000 Cobra motor option. At the time it was a steal; like $5700 with all accessories and a new transmission. The low end sucks on those motors, but they are flywheel rated at 320hp. But if my motor blows, I definitely going forged with ported heads. Anyway, either of those engines will drop right in, but if you end up with a 4 valve, of course you'll have to change out the ECU.
08-09-2007, 08:03 PM
#16
1st Gear Member
Join Date: Dec 2006
Location: Cali Via Texas
Posts: 54
RE: Blown motor @ 39k Miles need help please!!!
hey man i had a low end knock and went to ford amd they told me i spun thr main bearing so i bought a used engine from asap motors out of houston do Not buy from these ******!!!!after i got the engie i decided to take apart my ould engine and it was a piston bearing.
08-09-2007, 09:38 PM
#17
2nd Gear Member
Join Date: Jan 2004
Location: United States
Posts: 165
RE: Blown motor @ 39k Miles need help please!!!
Well if you are talking terminators, then of course you are gonna eat a 2v. But that motor and the 2000 cobra 4v are two different things. What I was talking about was stock for stock. If you mod something, you'll get 90 different scenarios on this board. But an 02 GT motor torque peaks around 4k 302 flywheel; versus that 4v which does it 317 at 4800. I didn't say that motor was a slouch; it just does most of it's performing very high up. I have driven both and I just wasn't all that impressed with it down low. Heck, I know everyone hate magazine racing, but 5.0 had a comparo with the Mach 1, a Bullitt, and an 01 Cobra, and the Cobra had to play catch up with the Bullitt. It's all preference. The 4v is still more capable.
08-09-2007, 11:03 PM
#18
3rd Gear Member
Join Date: Jan 2006
Location: Kansas
Posts: 816
RE: Blown motor @ 39k Miles need help please!!!
ORIGINAL: m1950
hey man i had a low end knock and went to ford amd they told me i spun thr main bearing so i bought a used engine from asap motors out of houston do Not buy from these ******!!!!after i got the engie i decided to take apart my ould engine and it was a piston bearing.
hey man i had a low end knock and went to ford amd they told me i spun thr main bearing so i bought a used engine from asap motors out of houston do Not buy from these ******!!!!after i got the engie i decided to take apart my ould engine and it was a piston bearing.
08-09-2007, 11:06 PM
#19
5th Gear Member
Join Date: Mar 2005
Location: Nashville/Knoxville, Tennessee
Posts: 4,687
RE: Blown motor @ 39k Miles need help please!!!
the cobra is also a heavier car to boot. ive driven cobras and all years of GT's... i will say, the cobra is a top end car... down low a stock GT will stay with it. but once they get into those rpms, they will pull. the 4v motor has runner plates on the lower intake manifold that open up up top to get more power since the heads flow much better air. and they open due to throttleor rpm or maybe even vaccumi believe. down low they arent open as much that way the car will have more power and not bog as much... its hard to explain the concept of what it does.. but what kills a cobra, are those 3.27 gears (99-01 cobras).. since it takes longer for them to get into those higher rpms where their power band is.
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08-09-2007, 11:07 PM
#20
5th Gear Member
Join Date: Mar 2005
Location: Nashville/Knoxville, Tennessee
Posts: 4,687
RE: Blown motor @ 39k Miles need help please!!!
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[blockquote]
ORIGINAL: cahtr6
I gotta know what is a piston bearing?
ORIGINAL: m1950
hey man i had a low end knock and went to ford amd they told me i spun thr main bearing so i bought a used engine from asap motors out of houston do Not buy from these ******!!!!after i got the engie i decided to take apart my ould engine and it was a piston bearing.
hey man i had a low end knock and went to ford amd they told me i spun thr main bearing so i bought a used engine from asap motors out of houston do Not buy from these ******!!!!after i got the engie i decided to take apart my ould engine and it was a piston bearing.