TripleBlackZ06

I have a 13 ZR1 & I am thinking about a tune , so I am just going to eliminate the 2 extra cats or resonators by replacing the mid pipe with the Corsa x pipe & change the filter with the Attac blue higher flow filter. I want to keep it close to stock for now with maybe a little edge. Very basic mods which I could get away without a tune at all. I would rather not go through the trouble of a dyno tune but I have never tuned a car any other way. What is the best way or who is the best tuner to go to for a tune without a dyno?

I brake for nothing

You need data logging software with wideband(s) to remote tune. Its going to be much simpler and cheaper for you to get the dyno tune done.

LMB-Z

A dyno tune is the only way to go, in my opinion. As far as who is the best, that would depend on where you live, I guess. There are many shops out there that can tune the car, just do your homework.

phils C5 vette

"dyno tune" is a little misleading, because the dyno simply measures your RWHP. The dyno is not making the car any faster or tune any better. Lets say your at 500 RWHP while strapped to the dyno machine with fans on your car to keep it cool. The right after that you take it on the street to see how the car performance under actual load, weight, aerodynamics, and cooling, the car will probably lean out some and knock a couple degrees. Then you correct that so the car is stabile on the street and you go right back on the dyno, you maybe 490RWHP. So the dyno is just a measuring tool and wont make the car faster.

Michael_D

You don't "need" to tune a car with a dyno. It's a lot more time efficient, safer, and the WOT portion can be done in fourth gear, but at the end of the day.....a good tuner will drive the car on the street to polish up what was done while on the dyno. And also, not all dyno's are the same. The best type to use for the purpose of tuning is a load bearing dyno.

Seeing how you are not planning to do much that would require a complete re-map of the air models, you can probably get away with doing it yourself. You'd just need the interface and a wideband - and time.

ralphsmithiii

I remote street-tuned my ZR1 recently on both 93 and E85. I prefer street tuning as you tune it using "real world" conditions and its how you'll expect it to function on the street. However, it can be risky if you're not sure how your car will react. Meaning, as long as you have really good tires (ie, drag radials) and you have a "safe" place to tune the car, then you can go that route. You will need a wideband and some sort of remote tuning software. For me, I installed a PLX Wideband (<$200) and purchased the HPTuners Pro suite. Paying someone to tune your car may be cheaper as you dont have to purchase the tuning software. However for me, I wanted to be able to datalog my runs on the street while tuning and at the track for further tweaking and troubleshooting. HPTuners Pro (need pro to remote tune) will run you around $550-600 alone. You can probably find someone who has it and has credits left to sell at a discount. You'd still need to pay the tuner for their time which typically runs around $500-$700, start to finish.

I do feel like with these cars, dyno tuning will produce a very fine tuned car. With other cars I've owned, such as my GTR, when tuned on the dyno it looked awesome. However, when doing a hit on the street or at the track with a prepped surface, the car didn't operate as expected so we had to retune it. That's why for me, I prefer street tuning or if a local tuner offers it, dyno + street. Dyno tunes also let you see if there's issues with the car by simply looking at the dyno graph.

MTPZ06

Where are you located? Your method of tune may be dictated by your location...some remote tuners may be better than whats local to you.

TripleBlackZ06

Long Island , New York , there are a few tuners out here I have used & some I have not , I thought to keep it simple this time without a tuner but I am reading all the responses & seems like I should just go with the dyno tune & be done

Tech

I tune my own cars and I wouldn't even bother buying the license with those mods.

jayyyw

Bare minimum, I'd buy a wideband to monitor your AFR after installing the parts. That will tell you whether or not you need a tune.

TripleBlackZ06

What do you use to tune your cars?

Tech

A Marsh

In my opinion, for what you're intending to do, the canned tune from an SCT or Diablosport tuner will give you a noticeable, but modest, boost.

You can also easily revert back to stock if and when the need arises.

I've tried both the Attack Blue and K&N air filters. My seat-of-the-pants dyno tells me that the K&N flows better. Take that for what it's worth.

I think I still have the Attack Blue filter around somewhere, but it's for an LS7.

0HorsePowerAddicts

If you don't mind the drive, We tune a pretty good amount of Zr1's

Michael_D

If removing the cats, cat protection can (and should) be zeroed out.

MTPZ06

He's just looking to eliminate the 2 extra aft cats...the two main cats off the manifolds would still remain, so I don't think this would apply for his scenario.

TripleBlackZ06

That's correct , just basic for now...

TripleBlackZ06

Thank you for the suggestions , I want a little edge over stock but keep the comfortability of the ride , I have overbuilt many cars in the past only to regret giving up nice rideability , so for now I am gonna hold back on trying to be the fastest on the block

MTPZ06

Maybe toss a ported TB on the list as well. No real HP to be had, but it is supposed to be a noticeable improvement in throttle response. Seems to be a go-to in the C7Z world as well for the low-mod crowd. X-pipe to eliminate aft cats, ported TB, and a drop-in "BMS" air filter are all popular entry level mods for C7Z owners...even on stock tune.

TripleBlackZ06

Installed the x-pipe & really like the improved sound when the valves are open & just feels better overall , it might not need a tune at all