i have decided i want to get the best performance i could out of my little 3.5 v6 so ont thing i am gonna do its get a dyno tune but befor wasting like 400 i would like to see if anyone has done this to a lt yet and what performance did you get out of it

 

honestly your not going to see that much of a gain from it without more extensive mods... dont get me wrong theres always gains to be had with a tune but your basically stock

 

I'm thinking the same thing as montecarlo01ss - there's not much if anything that you could "tune" on that car, unless the shop in question is doing a custom tune on the PCM. If the dyno shop is reprogramming the PCM, and you could see the before and after power curve, that would be cool. I'd hate to spend $400 if it's just a few HP.

 

usually a dyno is going to do you well if you have larger things like headers, turbo, supercharger, etc, because then its really going to adjust the pcm tuning to help raise the effectiveness of those power adders.

 

Like everyone is saying, a dyno tune is good AFTER you do a bunch of stuff. When I was NA, I had my Monte dyno tuned twice. The first time, I had a bunch of stuff done (headers, CAI, bolt ons, etc.) and put down 205whp. After the tune, it put down about 210whp. That's not a big gain. The second time that I went when I was NA I put down 218whp (I had added P&P heads and .045" head gaskets) and after the tune I made 222whp. So, each time I did gain all across the power band but in the end, I really only gained a little bit. The nice thing is though is that ZZP is very resonable price wise. I've never payed more than $165 to have them dyno tune my Monte.

If you can find a shop that will dyno tune your Monte for under $200, I say go for it. It's a great experience, and it's also a plus to know what kind of power you start out with.

 

I agree here, I would much rather pay about double the price of a tuned pcm straight from somewhere like zzp for a dyno tune, its going to benefit you alot more than just a tuned pcm, so if you can find a cheap dyno, that knows what theyre doing, then i would say go for it, but if you plan on doing some bolt ons, i would do those first before the dyno.

 

I was going to do a dyno and reprogram the pcm .....i am going to get a cai and i have a exhaust system done...and not sure really what else even bolt on or anything you can do to a 07 monte lt besides spend $2000 on a uni turbo or supercharger so i figured every hp counts but i told the guy not for $400 on a 5-10 hp gain no way in hell so i am shopping around a little more

 

There really aren't many performance options for you. If you have it tuned, I'd want them to:
- Remove all torque management
- Tune your timing tables to run on 93 octane (3-4* of added timing)
- Dial in your MAF table
- Shorten and firm up your shifts
- Raise your shift points by 50-100 RPM

This should make a huge difference in the way the car drives. While you may only gain 5-10 peak horsepower, you'll make power sooner and lower in the gear and it'll feel alot more responsive. Besides a cold air intake and cat-back exhaust, I really don't know what else you could do it- if you want to get serious about performance, and want to stay in a Monte Carlo, I'd look for an LS4 (5.3L) or 3.8L SS and forget about the 3.5L (no offense to anyone, but there really aren't any bolt-on parts to make a 3.5L quick).

Good luck.

 

you cant also port the stock stuff, other than that theres not much for the 3.5 right now.