2.4>3400 crap - Page 2

kwhauck · 10-06-2010, 06:22 PM

Quote:

Originally Posted by [ion] C2

No reason not to, need a car to do measurements/fitment on though probably.

how about just a block and heads, I can tell them any other measurements they would need.....

It's a little lacking right now.......

Shiwnath · 10-09-2010, 11:23 AM

There's nothing wrong with the 3400. If your looking for a quick and easy mod for the 3400 you could always get an aftermarket PCM as well as the other suggestions in this thread. Don't just give up on it because its more expensive than the LD9. If expense is an issue then you should just get an LD9 or leave it stock.

XanderWiFi · 10-12-2010, 04:31 AM

Had the hptuner hooked up to my 3400 and ion and I found that it already comes built with a turbo modifier option which he said didn't exist for his car when he hooked up. Not that it slows him down any : P but the 3.4 has some kick. I love it.

radomirthegreat · 10-19-2010, 04:22 AM

The 3400 has plenty of advantages compared to the 2.4.

To start, it has more horsepower. You're complaining about how much the mods cost, but think about how much of that little bit of money here & there you'd have to spend to get an LD9 up to 170 HP at the crank. Subtract that from the price of 3400 headers, and it's not so bad.

Also, the 3400 has splayed valves for intake/exhaust. This lets the intake and exhaust air flow have a clearer path straight at the valves so that flow is increased. This actually gives you more power, and airflow increasing mods like a cam or rockers get you much better results than what you'd have with straight ports. Straight ports like the ones on an LD9, 350, 3800, etc. don't let the air as efficiently flow at the valves and into/out of the combustion chambers.

With a 60º V-design, the 3400 sounds great! The 2.4 sounds like a 4-cylinder engine, which it is, but I don't like the sound. A 60º V6 or a V8 sound fantastic, and you can run them without a resonator and enjoy a nice exhaust note without much rasp.

Downsides are the iron block, so some weight, and that the engine bay appears to be so cramped that those tiny manifolds are used. Otherwise, the 3400 is a solid engine that's generally easy to mod and is more powerful out of the gate.

kwhauck · 10-19-2010, 08:25 AM

I like the way this guy thinks......lol

Lucalare · 10-19-2010, 08:58 AM

Are you sure the 3400 has an iron block? I thought I checked once and it was aluminum, but maybe I'm on crack and just don't know it.

zzyzzx · 10-19-2010, 09:15 AM

The LIM problems and gas mileage of the V6 is more than enough for me to think of the 4 cylinder engine as the better of the two.

Alerojester · 10-19-2010, 09:17 AM

from what i have read the LD9 has crank bearing problems, BUT that's what i have heard/read. beings to it mine is on it 3rd engine and still under 100k miles

Lucalare · 10-19-2010, 09:28 AM

Quote:

Originally Posted by zzyzzx

The LIM problems and gas mileage of the V6 is more than enough for me to think of the 4 cylinder engine as the better of the two.

I've gotten 32/gal with my LA1

-Alero- · 10-19-2010, 07:53 PM

the 3400 does has its problems, but out of the box the driveability is much nicer compared to the ld9, due to have over 200 torque.

gas mileage can be 30+ if modded right, i remember getting 34 on the highway.

as far as modding potential goes the L61 has it all, LD9 is 2nd and LA1 is last.

however, i learned alot about a V series 6 cylinder with this engine. its very simple designed and alot can be learned about it, due to this simple design.

all three of them really just require money if you want to go fast, some more than others, but that gives them the personal choice factor.

Lucalare · 10-19-2010, 08:55 PM

I've kind of gotten away from performance mods because going fast just doesn't appeal to me anymore. I'm currently working on a lot of lighting stuff, then in spring I want to replace my one fender, or get aftermarket fenders, and also get GA mirrors and spoiler. After that I might do an underglow kit, or rims, or maybe both.

XanderWiFi · 10-21-2010, 01:58 AM

I get 30 mpg with mixed driving conditions with my 3400. MPG is mostly affected by the driver. They have found you can have a forty percent decrease in gas usage if you remove some lead from your foot.

Ttop191 · 10-21-2010, 02:28 AM

you mean increase in gas mileage lol

whiterider00 · 10-21-2010, 03:09 AM

Quote:

Originally Posted by XanderWiFi

decrease in gas usage ...

that would be an increase in milage.

Lucalare · 10-21-2010, 09:07 AM

Ttop191 · 10-21-2010, 09:34 AM

i swear it said mileage not usage

Shiwnath · 10-21-2010, 10:42 AM

Quote:

Originally Posted by zzyzzx

The LIM problems and gas mileage of the V6 is more than enough for me to think of the 4 cylinder engine as the better of the two.

Why would you get a V6 if gas mileage is an issue? Obviously in most cases a 4 cylinder will have a better gas mileage compared to a 6 cylinder. The LA1 has performance over the LD9. You either pick performance or gas mileage.

widbyj · 10-21-2010, 10:46 AM

I went with both - TwinCam for mileage and S/C for performance. IMO overhead cams and 4 valves beats pushrods and 2 valves any day. Besides the ease of doing basic work on this motor...

XanderWiFi · 10-21-2010, 11:04 AM

Quote:

Originally Posted by Ttop191

you mean increase in gas mileage lol

No I meant decrease in gas usage which generally equates to an increase in gas mileage.

But White already beat me to it I see lol.

Shiwnath · 10-21-2010, 11:25 AM

Quote:

Originally Posted by widbyj

I went with both - TwinCam for mileage and S/C for performance. IMO overhead cams and 4 valves beats pushrods and 2 valves any day. Besides the ease of doing basic work on this motor...

I was talking about a stock LD9 vs a stock LA1. And yeah when you compare a pushrod 3.4 vs a dohc 3.4, the dohc has my vote. The gm 3.4 dohc is better than the LA1 when it comes to performance. I still love my LA1 though.