BUICK 3800: The best engine EVER!
"The supercharged 3.8-liter Series III helps the Grand Prix become a true hot-rod sedan.""More important, the Grand Prix offers higher horsepower and torque that is locomotive low. Push the gas pedal more than one-quarter of the way down from a stoplight, and the BFGoodrich Comp T/As will shriek loud enough to set off car alarms. Turn off the traction control and floor it, and the tires will sing the first 12 bars of La Traviata before they hook up.
Puffed up by the 9.5-psi sirocco from the twin-rotor Eaton supercharger, the big pushrod V-6 slings the Grand Prix to 60 mph in 6.6 seconds, faster by a half-second or more than all the prestige machines mentioned earlier. The quarter-mile clicks by in a virile 15 flat at 93 mph, but after that, progress slows as the lungs of a two-valve engine start to burn for lack of air."
https://www.caranddriver.com/reviews...rpoint-page-1/
Sounds plenty competitive to me, even in the 2000s, though the 2000s aren't what I'm talking about as I've repeatedly said.
I also have a pretty intimate knowledge of the 1UZ and the 3UZ as I've done a good amount of work on both of these engine, and while I'll give credit where its due I'll point out the flaws just as well, same as with any other manufacturer. I can find you a ton of posts in the 1LS forum regarding many common issues, and they were all a major pain to fix due to the less than optimal design.
"The supercharged 3.8-liter Series III helps the Grand Prix become a true hot-rod sedan.""More important, the Grand Prix offers higher horsepower and torque that is locomotive low. Push the gas pedal more than one-quarter of the way down from a stoplight, and the BFGoodrich Comp T/As will shriek loud enough to set off car alarms. Turn off the traction control and floor it, and the tires will sing the first 12 bars of La Traviata before they hook up.
Puffed up by the 9.5-psi sirocco from the twin-rotor Eaton supercharger, the big pushrod V-6 slings the Grand Prix to 60 mph in 6.6 seconds, faster by a half-second or more than all the prestige machines mentioned earlier. The quarter-mile clicks by in a virile 15 flat at 93 mph, but after that, progress slows as the lungs of a two-valve engine start to burn for lack of air."
https://www.caranddriver.com/reviews...rpoint-page-1/
Sounds plenty competitive to me, even in the 2000s, though the 2000s aren't what I'm talking about as I've repeatedly said.
If anything, the FI version of the 3800 only highlights its age and mediocrity. There was just no room for improvement in that old design, and 240hp/280tq out of FI 3.8 liter is very pathetic. Any FI Japanese 6 cylinder of the 90ies would wipe the floor with the 3800, and in 2000s Japanese engines made more power and torque with NA 6 cylinders with smaller displacement.
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Car and Driver seems to agree with me about this motor, and despite what you say it is a very well respected engine that does have a legacy.
What N/A Japanese V6 made 280ft/lb of torque? Most Japanese motors that made good horsepower were 3.5s...vs a 3.8.....A whopping 3/10s of a liter smaller. That is not a significant difference as you're pretending it to be.
Did you not read the C&D article I posted? They seemed to think the 3.8 was just fine in 2004....and again I'm not even talking about that decade in regards to my original post.
Car and Driver seems to agree with me about this motor, and despite what you say it is a very well respected engine that does have a legacy.
What N/A Japanese V6 made 280ft/lb of torque? Most Japanese motors that made good horsepower were 3.5s...vs a 3.8.....A whopping 3/10s of a liter smaller. That is not a significant difference as you're pretending it to be.
Did you not read the C&D article I posted? They seemed to think the 3.8 was just fine in 2004....and again I'm not even talking about that decade in regards to my original post.
I have said repeatedly I'm not talking about now.
However, what N/A Jap V6 made 280lb/ft in 2004 like the 3800 in that Grand Prix did?
You do know that the S/C 3800 was very underrated as well, don't you?
Basically the 3800 was relevant in the 80ies, dated in the 90ies when everyone switched to OHC, hopeless in 2000s, perfect candidate for the cash for clunkers in 2010, and if you see anyone driving it in 2020 most likely they have a mullet.
Last edited by Och; Feb 1, 2020 at 07:16 PM.
Basically the 3800 was relevant in the 80ies, dated in the 90ies when everyone switched to OHC, hopeless in 2000s, perfect candidate for the cash for clunkers in 2010, and if you see anyone driving it in 2020 most likely they have a mullet.

We have an IS350 with that 3.5 motor and it's a rocket but doesn't have the bottom end of a S/C 3800 at all, sorry. But yes once it revs out, get out of the way.
And the 2004 Acura TL, I owned a 2006 one that was a 6spd. It was a sweet engine too but had zero torque, and the rating wasn't 260, it was 238 lb/ft.
When I test drove my LS and bought it it took me a minute to get used to, the torque compared to that Acura.
I will agree with you on one thing: The 3UZ is basically a perfect engine. You can't not notice how heavenly and refined it is when it does its business. It's so undertaxed it's ridiculous. But it springs to life if you prod it and sounds like ripping silk.
We have an IS350 with that 3.5 motor and it's a rocket but doesn't have the bottom end of a S/C 3800 at all, sorry. But yes once it revs out, get out of the way.
And the 2004 Acura TL, I owned a 2006 one that was a 6spd. It was a sweet engine too but had zero torque, and the rating wasn't 260, it was 238 lb/ft. 260 in the type S
When I test drove my LS and bought it it took me a minute to get used to, the torque compared to that Acura.
Its not just refined, its also brilliantly engineered to perfection, very easy to work on with every component making perfect sense.













