Modular Motors - Differences, pros, cons, etc...
07-29-2006, 01:53 PM
#1
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Modular Motors - Differences, pros, cons, etc...
I've read in a few places that the 4.6 which was in the SN95 body styles is sluggish compared to other Mustang motors, even though it has the same HP/TQ ratings as the older 5.0L's had - what validates the idea that they're slow?
I'm also interested in the differences between the 215HP 97/98 4.6 SOHC, and the advertised 260HP 4.6L SOHC in 1999 and newer GT's. I thought my 97 GT had basically the same motor as the 99+ GT's, but obviously that's not the case. I'd just like to know what the differences are between the 2.
I'm also interested in the differences between the 215HP 97/98 4.6 SOHC, and the advertised 260HP 4.6L SOHC in 1999 and newer GT's. I thought my 97 GT had basically the same motor as the 99+ GT's, but obviously that's not the case. I'd just like to know what the differences are between the 2.
07-29-2006, 03:00 PM
#2
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RE: Modular Motors - Differences, pros, cons, etc...
The diff in the 99-04 Gt is the PI heads (performance improvement) PI intake and Cams. On our 96-98 engines the experts say our heads are the weak part in this engine. The 96-98's just lose all go once they get to 400 rpms. Ford fixed that problem with the 99-04 revised PI Heads, intake and cams. If you install the PI kit you gain at the least 55 rwhp. The PI kit is a must have for the 96-98 engine.
07-29-2006, 03:08 PM
#3
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RE: Modular Motors - Differences, pros, cons, etc...
The PI swap will also raise the compression. When you do the swap you will have basically have the same motor as the 99-04.I dont no why Ford rated the 96-98 motor the same as the 94-95
07-29-2006, 03:53 PM
#4
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RE: Modular Motors - Differences, pros, cons, etc...
The main difference between 2v and 3v Mustangs.....
Ahh, well the 3v actually responds well to modifications. It takes a sickening amount of work to get near 300rwhp with a 2v. Whereas with a tune and 1,000 bucks worth of mods or less a 3v will surpass 300rwhp.
Ahh, well the 3v actually responds well to modifications. It takes a sickening amount of work to get near 300rwhp with a 2v. Whereas with a tune and 1,000 bucks worth of mods or less a 3v will surpass 300rwhp.
07-29-2006, 05:01 PM
#5
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RE: Modular Motors - Differences, pros, cons, etc...
What's a PI swap worth? (parts and shop labour)
Are the 99+ 4.6's a 3v? Dan's post confused me ... I thought all the 4.6 GT's were 2v, and the Cobras were 4v's ... ? As you can see, I'm a newbie to 'Stangs ... learning a lot though!
Are the 99+ 4.6's a 3v? Dan's post confused me ... I thought all the 4.6 GT's were 2v, and the Cobras were 4v's ... ? As you can see, I'm a newbie to 'Stangs ... learning a lot though!
07-29-2006, 05:35 PM
#7
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RE: Modular Motors - Differences, pros, cons, etc...
ORIGINAL: 98 Mustang GT
Yeah Dan ment to say 4valve heads are offered on the 99-04 GT STOCK. You should read the FAQ section and it explains the differences in
there quite well.
Yeah Dan ment to say 4valve heads are offered on the 99-04 GT STOCK. You should read the FAQ section and it explains the differences in
there quite well.
4v heads come on 2003-2004 Mach 1.
4v Heads come on 96/97/98/99/01/03-04 Cobra's.
3v Heads are on 2005+ Mustang GT's.
07-29-2006, 06:31 PM
#8
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RE: Modular Motors - Differences, pros, cons, etc...
ORIGINAL: Wes8398
I've read in a few places that the 4.6 which was in the SN95 body styles is sluggish compared to other Mustang motors, even though it has the same HP/TQ ratings as the older 5.0L's had - what validates the idea that they're slow?
I've read in a few places that the 4.6 which was in the SN95 body styles is sluggish compared to other Mustang motors, even though it has the same HP/TQ ratings as the older 5.0L's had - what validates the idea that they're slow?
In addition, from this forum I was led to believe that ALL 2V heads suck, despite the increased flow of the PI setup...
07-29-2006, 09:21 PM
#9
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RE: Modular Motors - Differences, pros, cons, etc...
the newer pi's dont suck, they alowed the mustang to make 1.07 ft-lbs of torqe per cubic inch, not bad back in 1999
260hp/302ft-lbs makes for a fun street motor, enough to hang with lt1 gm f-bodys. but yes i think that ford should have designed things faster and put the PI stuff on th 96-98 gt's and the three valves on the newer 99-04 and then go to big bore 5.0 for 05+
that may have changes history for the mustang in the mid and late 90s when the f-bodys were handing us our ***'s
260hp/302ft-lbs makes for a fun street motor, enough to hang with lt1 gm f-bodys. but yes i think that ford should have designed things faster and put the PI stuff on th 96-98 gt's and the three valves on the newer 99-04 and then go to big bore 5.0 for 05+
that may have changes history for the mustang in the mid and late 90s when the f-bodys were handing us our ***'s
