Beretta.net

I need to get mine 3500'd with the quickness.

13's or bust wrote:Mickaz i forgot about so now we have 9 3500 swapped berettas? Mine is my daily driver too, today after my fuel pump changed i did over 34mpg on the highway full tank than divide down. 34.3 was my mpg lol.

WOW. i need one too LOL.. 34.3 mi. = 55.2004 km
How is the bigger engine better on fuel ?

And those 3900's run on 3 cylinders when on the highway or when ever really your not into it all the time. if you have the wire harness and ECM from that car with the 3900, shouldnt be too hard to rig up.

The 3900 is a 60 degree, why can you use a 3900 block, put a different cam in cuz they have a weird cam and put 3500 heads onto it, 3500 intake and what not. then it will run off our ecm's and be simple to get it going. would need a tune for sure, but might be possible

power to weight ratio... If you get power to a certain point you will use less gas keeping the vehicle in motion. It also GREATLY depends on how he is driving. I've told him to keep it civil till I can send him a properly setup ECM since his is not configured properly. I get 25mpg and thats being rough on it from time to time, including my over 3k stall converter, so as DTMAce noted when he gets 34mpg he doesn't go over 3k rpm accelerating, or exceed the speed limit at all... He is still an original 3100. Mine unfortunately as soon as you start to move is already over 3k, and I typically go 70-75 on the highway.

Exactly how jon said, havent brought it over 2500 rpm but once to see if i can go wot when i changed the pump...but highway i do around 60-63 which is right at or under 1900 rpm with cruise control on. Also big thing on fuel economy is the tune. I got out of my lead foot stage in life back at bfest 2010 lol. Jon knows what happened.....but good mpg is very obtainable in these cars. My purple car get around 32 kicking in nd out of overdrive or full lockup. It has a 2095 stall converter instead of stock 1630. Its all about keeping your rpms down nd not being ricky racer through town.

The 3500 is a much better design and not only does it make more power it is also much more efficient.
Hell I can get 26 -27 mpg on the highway with 3.73 gears. That's about 3500 RPM at 68 mph or so with the TCC locked up.

I get the same MPG with the 3400 bottom end I'm a shade below 3500 rpm though, thank god overdrive.

i wanna see what ill get with out a cam, and 3.69's with a 3k stall. nd yes jon thank god for overdrive, doing 40mph at like 1100 rpm on the streets lol.

beretta wrote:

13's or bust wrote: And those 3900's run on 3 cylinders when on the highway or when ever really your not into it all the time. if you have the wire harness and ECM from that car with the 3900, shouldnt be too hard to rig up.

The 3900 is a 60 degree, why can you use a 3900 block, put a different cam in cuz they have a weird cam and put 3500 heads onto it, 3500 intake and what not. then it will run off our ecm's and be simple to get it going. would need a tune for sure, but might be possible

It's not really that easy... The 3900/3500 VVT are a newer generation, unfortunately parts don't just swap over... I guess we should be lucky that parts from the first 3 generations of 60° V6s do.

Just grab all the crap, bolt it up, and run a standalone ecm. Done.


If only.

Yea "if only" thank god 2nd gen parts fit onto 3rd gen motors too. If not the 3500 swap in my car would have never been done lol. sensors, waterpump pulley, ps pump, ac delete puley for the 3100, ummm...idk what else lol. Crank pulley, misc nuts and.bolts all from the 2nd gen 3100 onto the 3500.

Im very curious to see what itll run since i dont have fuel problems amymore. i dont think....wanna get it retuned for the 3500 tables nd hit the track open dp.

The 3100 is third gen... they didn't change generation when they went from L82 to LG8

It was Iron head Gen1, Aluminum head MPFI Gen2 and Aluminum Head SFI Gen3

Ohhh i thought they did, sorry retract my last reply than lol.How about this im just happy all my old parts from the 3100 bolted up to my 3500 than lol.

How do you drive under 3 K rpm....

I drove to work today like a 90 yr old man. i tryed to keep it under 2500 the whole way there and back, my cruise control on a hill will push it past 3 K by itself.

I felt like i was driving and old 3 cylinder piece of junk with no compression driving that slow LOL takes for ever to get to speed keep the rpm down.

I still burned over 1/4 tank of fuel, i think its actually better when im on the throttle all the time

Haha very simple 1/8th throttle it. Idc about people behind me. Lol. I bring it up around 2k rpm it shifts than back up to 2k rpm and than im in 3rd bring it up a lil than goes to overdrive. Im doing like 1100 rpm at 40 mph. Its very simple i think. maybe your trying to hard? Its very easy for me to do lol.

I just get behind a semi and tailgate him to work.

Get 35 easy in the mustang.