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why the 3.4 at all?

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  • why the 3.4 at all?

    The 3.4 NA produces right around 200 hp.
    The 3.8 NA produces right around 210 hp.

    3.4 - DOHC nightmare
    3.8 - single cam with chain.

    What exactly did GM think the benefit of using the 3.4 would be?
    As the 3.4 takes a mess of cams to come close (but still fall short) of the 3.8, what was it really worth?
    Not like the 3.4 is THAT much more gas efficient.

    Just trying to learn something here.
    1994 Grand Prix GTP 3.4 DOHC

  • #2
    Nightmare: Taking turns with a 3800 at high speed
    Nightmare: Changing the rear spark plugs on a 3800
    Nightmare: The tiny ports a 3800 has
    Nightmare: Changing the cam on a 3800
    Nightmare: Exhaust sound on a 3800
    Originally posted by Mars
    Haha ^ Wrong Wheel Drive.
    S10 Blazer 4.3, turbo LX9 in its future...
    No 60ºV6 at the moment

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    • #3
      3.4 DOHC (94-97) 215 hp and 225 lb·ft
      3.8 (Series 2) 205 hp and 230 lb·ft

      Get your numbers straight

      BTW, 1.5 million 3800 equipped cars were recalled due to the leaking valve covers causing engine fires. How many 60v6 cars were recalled for the same thing? None
      Past Builds;
      1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
      1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
      Current Project;
      1972 Nova 12.73@105.7 MPH

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      • #4
        Call GM.
        Ben
        60DegreeV6.com
        WOT-Tech.com

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        • #5
          Because my stock 3.4 will smoke a stock 3800 and doesnt sound like poop while doing it.

          /thread.
          -Matt

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          • #6
            this thread delivers.

            oh, and the L67 runs like ~7 or 8 PSI to make a whopping 240HP, right? the LQ1 at the same pressure ratio will make somewhere around 300HP.
            1995 Monte Carlo LS 3100, 4T60E...for now, future plans include driving it until the wheels fall off!
            Latest nAst1 files here!
            Need a wiring diagram for any GM car or truck from 82-06(and 07-08 cars)? PM me!

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            • #7
              Its more then 300 hp with the same boost numbers with the same blower.

              96 Z34 3.4 SC DOHC Getrag, 284 5sd manual transmission, stage 3spec clutch, 97 engine, 97 pcm, S3 intercooler 1 of 1 Roots SC LQ1 in the world 8.5 psi.

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              • #8
                over 300?

                i guess i was a bit conservative then!
                1995 Monte Carlo LS 3100, 4T60E...for now, future plans include driving it until the wheels fall off!
                Latest nAst1 files here!
                Need a wiring diagram for any GM car or truck from 82-06(and 07-08 cars)? PM me!

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                • #9
                  Well then again i forgot to note with an intercooler...

                  96 Z34 3.4 SC DOHC Getrag, 284 5sd manual transmission, stage 3spec clutch, 97 engine, 97 pcm, S3 intercooler 1 of 1 Roots SC LQ1 in the world 8.5 psi.

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                  • #10
                    "Why the 3.4 at all?"

                    How about the simple answer:

                    "To compete with the Ford Taurus SHO having the Yamaha-designed and built DOHC V-6."

                    As supplied in stock form, the Yammie engine probably put out a few more ponies than the GM unit; and did it with less displacement (3.0L). The Japs definitely know how to build a powerful DOHC engine. Eventually, the Taurus SHO got a DOHC V-8 (but it had significant problems.)

                    The main problem with the Taurus SHO is that it was based on...the Taurus. What a shitbox.
                    Last edited by Schurkey; 12-06-2010, 12:54 AM.
                    ^ some people may call this guy an asshole at times, but he isn't wrong very often -- Robert

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