New Series 3100 V6

[Dallas_95GT]

Is it called the generation 3? Anyways, it's the 3100 found in the newer malibu's with the bigger intake manifolds and all. Just wondering if anyone has researched putting one of these in a GA. Seems to me like there would be a lot of electrical issues, and it'd be smart to get the computer and wiring harness too. Any opinions?

[MJE95GAGT]

contact HondaCivicsSuck, he has one from a Monte in his either 94/95

[Marks95GAGT]

I think you already have the Gen 3 3100. The thing is there is a mod that we can do that allows us to put the better gen 3 3400 heads and intake on. I am not sure it is correct to call the 3100 SFI a Gen 3 though. The reason I do is because GM calls the cam a Gen 3 camshaft. It has the roller lifters and all. But please correct me if I am wrong in calling the motor a gen 3.

[Jason Lesbirel]

If we look at the history of the 3100, the 94-95 GA had what could be called the GenI version, running on OBD I and making 160bhp.

The 96-99 3100 was running OBDII, and as a result lost 5bhp and 5 lb-ft. of torque due to strengthened emissions controls.

The 2000+ 3100 could be correctly referred to as GenIII, due to it's updated ECM mapping and better intakes.

Installing one into an older car would be, strictly speaking, "plug-and-play", so long as the newer computer was part of the deal. If the engine and computer are a package, then the computer doesn't even have to be flashed by the dealer.

[HondaCivicsSuck]

Hey jason that was 96-98 with the 3100. And i used my computer From the old 3100 in my car. I think it would be kinda hard to get a newer 3100 98+ in a older GA92-95. on that 97 i had to change alot of stuff :( But hey it run's good, I was told that the 3100's in the monte's have more kick then the ones in the GA's, The man was right. I guess its because the car is heaver, so it needs more power :???:

[Dallas_95GT]

Hmm... So would a 3100 out of a '99 require alot? Gen. II I think... I guess my big question is will my ECM work on a Gen II 3100?

[MJE95GAGT]

your ECM will work fine, all you have to do is take out the MAF from the newer engine and use your old wiring harness

[Dallas_95GT]

So... The Gen. III (2000+ models) requires the computer and wiring to work right?

The Gen. II will work with the wiring in my '95 with only a few changes. Right?

[MJE95GAGT]

The Gen III should work fine with your current computer and wiring too

[HondaCivicsSuck]

you would have to do more then that

[digital-d]

Originally posted by Jason Lesbirel
If we look at the history of the 3100, the 94-95 GA had what could be called the GenI version, running on OBD I and making 160bhp.

The 96-99 3100 was running OBDII, and as a result lost 5bhp and 5 lb-ft. of torque due to strengthened emissions controls.

The 2000+ 3100 could be correctly referred to as GenIII, due to it's updated ECM mapping and better intakes.

Installing one into an older car would be, strictly speaking, "plug-and-play", so long as the newer computer was part of the deal. If the engine and computer are a package, then the computer doesn't even have to be flashed by the dealer.

I think as the first gen he was reffering to the 3.1MPFI. So, you are telling me that my '95 3100 came with 160hp? that is not true because I have the '95 Pontiac brochure and the 3100 is 155hp and 185 lb-ft torque and I belive it stayed the same in '96 eventhough it's a OBD II.

[Jason Lesbirel]

Originally posted by HondaCivicsSuck
Hey jason that was 96-98 with the 3100. And i used my computer From the old 3100 in my car. I think it would be kinda hard to get a newer 3100 98+ in a older GA92-95. on that 97 i had to change alot of stuff :( But hey it run's good, I was told that the 3100's in the monte's have more kick then the ones in the GA's, The man was right. I guess its because the car is heaver, so it needs more power :???:

With all do respect, my information is correct. I was discussing the history of the 3100, not the history of the engine as it pertained to the GA.

OBD 1.5 3100s were making 155, so they I guess could be bundled in with the OBDII cars.

The GenI would not be the old MPFI 3.1 V6 - the two engines are significantly different. Among the only things they have in common are the bank angle and bellhousing bolt pattern.

Again, I assumed this was a discussion of the 3100 - not a specific history of the engine as it pertained to the Grand Am.

[HondaCivicsSuck]

hey, i thought he was talking about 3100 also. This is a good example. Look at the Grand National 87' GM says it makes 285hp when it really pushes out about 300hp. GM does that for a reason. can any of you guess why? :D

[John95GA]

My '95 has OBD-II (Superchips confirmed that when they pulled the computer to repgrogram it a few years back)... Anyway, I shouldn't have any electrical issues if I used 2000 3100 heads and intakes on my '95 block, should I? The only hurdle I can visually see is the EGR assembly. :???:

[HondaCivicsSuck]

i just looked to... i have OBD2 i took my hole computer out looked at it its OBD2 my dad had OBD1 on his IROC it way diffrent. It might be a older computer but if it was OBD1, wouldnt some of the componets be the same :rolleyes:

[L!m3]

The older style grand prix with the 3100 were pushin out 165 HP and 190 torque. I'm not sure what the difference is between the 3100 in the grand am and the grand prix, is just an ECM issue? Intake? When you look at the two engines they look exactly identical so i'm guessing it's something to do witht he computer.

[digital-d]

I thought they switched to OBD II in '96. How do you tell the difference?

[MJE95GAGT]

They switched it over to OBDII later in the 95 year, so some 95s are and some are OBDI