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1979-2004 V6 Mustang Tech Discussions

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Unread 07-11-2003   #1 (permalink)
Zuhaib is offline Rookie


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Default Basic performance modifications/Tune up for new Mustang owner (3.8l 2001)

Hello Guys.. This is my first post here...
I need some help with a few basic performance modifications/tune ups for my fathers 3.8l 01 Mustangs. I was looking at the Tech Articles and i noted that before you jump in to mods you need to do a tune up but most of the info there was for the 5.0 or 4.8l guys and not us 3.8l. So does someone have a website or maybe can do a write up for me on what i need to be done to get a proper tune up on this 3.8l 2001 to make it run like new if not better.
Also i am a little confused on the performance of this car... Like i said this is my dads car, i drive Euro cars (Own a 03 VW Passat V6 4 Motion and before a 02 VR6 Jetta) and i am a little confused on how my Passat with a 2.8l V6 has the same Hp numbers as a 3.8l Ford V6??? Something has to be done to give my dads mustang a bit more punch.. ohh just note it is an Auto bc he does use it for his daliy drive to work and back.

Just for you guys that dont know the spec of a VW Passat V6:
Hp: 190 @ 6000 (142 kW @ 6000)
torque: 206 @ 3200 (280 Nm @ 3200)
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Unread 07-12-2003   #2 (permalink)
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2.8l DOHC 5 valves per cyclinder
10.6 to 1 compression
190hp @ 6000rpms
206ft @ 3200rpms

Veris
3.8L pushrod 2 valves per cyclinder
9.3 to 1 compression
193hp@5500rpms
225ft@2800rpms

Ford AJV 3.0L DOHC 4valves Per cyclinder
10.0 to 1 compression
220hp@6300rpms
192ft@5000rpms

The VW passat 2.8L has a more efficant engine, especially when your a 2.8L Double Over Head Cam engine that uses 5 valves per cyclinder, --VS-- a 3.8L push rod engine with 2 valves per cyclinder. The 2.8L allows more air in and out at a time. And it also revs higher than the 3.8L. On top of that it has a higher compression, which also helps it make more power from a smaller displacement 10.6:1 but that's not all the story. That little 2.8L is not making the low end torque that the larger engine is, so it has to rev higher, which also means that the gearing needs to reflect the power and torque curves for that engine. Give that passat our gear ratio's, and it will be a slug. This is the reason why you don't see the Ford AJV 3.0L DOHC engine in the mustang, it makes more hp 220hp@6300rpms but it makes less torque 192ftlbs@5000rpms, which is way too high to push our Mustangs, especially with the gearing in the T-5's. Ford needed to keep the T-5's and the AODE for abuse factor too. The gears can handle the abuse. Put in the gear ratios that the ford 3.0L and the VW2.8L engine uses, and then throw in the bad habits of mustang drivers, and you will get alot of granades. That's why the next gen Mustang is going to get the 4.0L temporarly untill they finish the development of the 3.5L DOHC engine that will go in around 07/08. I would expect the 3.5L to use the same T-45 gearing as the GT,s and I would expect the 3.5L to rev just as high.
The 3.8L engine was originally designed years ago compared to when the VW 2.8L was designed. The 3.8L engine does not have alot of delevopment from Ford, matter of fact, the 3.8L is nothing more that a copy of the Chevy 3.8L engine. If Ford did do a lot of development from scratch, you wouldn't have the poor head gasket and water coolant design that has pleagued the 3.8L/4.2L engines. The head and water coolant design would be more comparable to the 5.0 and 5.8L engines. If you was to compare both the Chevy 3.8L and the Ford 3.8L you will find a tremendous amount of similarities, from the internal counter weight to the head designs. You should see the dynos from the Chevy 3.8L, you can pratically lay it over the ford ones and have the same torque and hp curves.
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Unread 07-12-2003   #3 (permalink)
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Hey man.. Thanks for the write up.. on the VW 2.8l Vs 3.8l Mustang... Its kind of sad i heard its nothing more then a rip of the Chevy 3.8l.. The reason i asked is bc i was hoping that since the car was a 3.8l maybe ford has under rated it (as in the case with the VWs.. Many time we get under cut) or if not, that a few simple mods to free her up might yeild over 220Hp (Crank.. Its funny, the Euro/VW guys almost never talk about Hp at the wheel.. I guess its bc we are nto too much in to draging are cars) but i guess the way it is built its not going to happen without some crazy Mods.

I have found some mods i want to do already to my dads mustang.. First, Tune up (still need some help as most of the stuff here talks about the 4.2l and above), 2nd K&N filter or kit... And maybe a under drive pully.. Did not see any Mods i can do for the Tranny.
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Unread 07-12-2003   #4 (permalink)
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Under drive pulley.....mmm....you know that might/will discharge the alternator right?
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1998 Ford Mustang V6 Atlantic Blue
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Unread 07-12-2003   #5 (permalink)
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Quote:
Originally posted by Zuhaib
Hey man.. Thanks for the write up.. on the VW 2.8l Vs 3.8l Mustang... Its kind of sad i heard its nothing more then a rip of the Chevy 3.8l.. The reason i asked is bc i was hoping that since the car was a 3.8l maybe ford has under rated it (as in the case with the VWs.. Many time we get under cut) or if not, that a few simple mods to free her up might yeild over 220Hp (Crank.. Its funny, the Euro/VW guys almost never talk about Hp at the wheel.. I guess its bc we are nto too much in to draging are cars) but i guess the way it is built its not going to happen without some crazy Mods.

I have found some mods i want to do already to my dads mustang.. First, Tune up (still need some help as most of the stuff here talks about the 4.2l and above), 2nd K&N filter or kit... And maybe a under drive pully.. Did not see any Mods i can do for the Tranny.
You can add a B&M shift kit to the tranny, and use full synthic fluid, and use a Tranny Fluid cooler and... change your torque converter, plus get a chip that will also change the shift points.

Uderdrive pully is fine, but if your alt is starting to go.... the effects of a bad alternator will show up much quicker.
Another cheap mod is a rear sway bar, which will help in cornering.
and then a aluminum drive shaft, which will remove some rotational mass and is actually a bit easier on the tranny. **Note get a safety loop while your at it**
Also use WaterWetter, which will help cool the antifreeze. And then put synthetic fluid in your rear differential, and use synthectic or synthectic blend for your motor oil.
Another kinda cheap mod is Cobra R front brakes, which are now under $400 for the whole setup. helps alot with stopping.
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