words of advice!!!
BTW ~300rwhp is about average for a full bolt-on M6 LT1. I have had my car on different dynojets that have been up to 10rwhp off from one another without making any changes to the car. I have also made pulls that have thrown some radical numbers, dynos are simply a tuning tool nothing but. Tuners have the ability to calibrate dynos so they throw generous numbers, some dynos are simply not calibrated correctly, etc. etc. I would expect you to realistically have between 295-305rwhp with your current mods on a dynojet.
The Best V8 Stories One Small Block at Time
For example...A buddy of mine has a full bolt-on LS1 that got dyno tuned by a popular LS shop on this board. My other buddy with HPTuners (LS1 tuning software) uploaded the tune from our other friends car and runs that on his full bolt-on LS1. Car runs mint, we have datalogged it, raced it, you name it and the tune is really spot on. That is exactly what the tuners do with a mailorder tune so with such a popular setup you can be sure to have a mailorder that should work really well for you all while saving you some dough over that $400 dyno tune.
But if you don't have the hardware, it will take a week or so to get a PCM from the tuner, depending on who you use.
I will agree with StealthFormula - it's not worth it at this stage of your game.
even with the engine running good I would still opt for a mail order personally just because you don't have a whole lot done. yeah a dyno tune would be more accurate but what happens when you get a few more mods and need a re-tune? another $400? a mail order re-tune is only $50-75 I forget which. so I'd send it to Ion(madtuner) personally.



