mail order tunes?





Some things are the same on every PCM like CAGS elimination or lower temp fans. But when it comes to a/f ratio and ignition advance, that's where it really matters because no two cars behave the same.
There is no substitute for a good tuner with a good dyno.
Last edited by Mez; Feb 1, 2011 at 05:17 PM.
Some things are the same on every PCM like CAGS elimination or lower temp fans. But when it comes to a/f ratio and ignition advance, that's where it really matters because no two cars behave the same.
There is no substitute for a good tuner with a good dyno.

Yes, as you said, the car "ran fine" but after a proper tune, they picked up a lot more HP and maintained a safe A/F ratio. I've seen tunes that were total just crap. Even from well known tuners.
Just last week I witnessed a 2008 Corvette with an A&A supercharger rolled in with 544 rwhp. Very lean A/F ratio and very low ignition advance. After these were adjusted, it dyno'd 590 rwhp. As you said, the car ran fine but the owner was shocked how much power it picked up. It was not initially tuned by anyone on this forum.
On a mildly modded 2005 GTO, a well-known tuner had set the ignition advance at 26° flat from 3500-6500 at WOT. Just by changing the advance and tweaking the a/f ratio, it picked up 15 rwhp and rwtq.
This ain't magic. It's no secret that there are many hacks out there. Some will cover their tracks by shutting off DTC so you don't know if something is really messed up.
My advice is be careful. Anyone that won't provide details of what was done, run away.
Some things are the same on every PCM like CAGS elimination or lower temp fans. But when it comes to a/f ratio and ignition advance, that's where it really matters because no two cars behave the same.
There is no substitute for a good tuner with a good dyno.
When I bought my 03 Cobra Pre-Kenne Bell (2.8 pulley/CAI/Catback) it had a Diablo canned tune and it was spot on and made 46xrwhp. That's F/I no less-
For a bolt-on (cai/headers/FAST) I would not hesitate to go mail order. Even when cam'd I wouldn't have a problem but getting the most power obviously won't be mail order.
Will a mail order tune be safe? Absolutely- (given they are reputable, as Doug pointed out)
Will you get more power with a dyno tune? Absolutely-
Last edited by JayplaySS2; Feb 1, 2011 at 06:08 PM.
The Best of Corvette for Corvette Enthusiasts




Is an in person tune (by a reputable shop) always best? Sure is, but we have now performed literally 1,000's of mail order tunes with many, many happy customers. Hard to argue with that.





Thanks
I'm waiting for a reply from EFI LIVE on the PC min requirement....
UPDATE:Here's your answer from EFI LIVE's Creator...
Win 2K is the earliest we support now.
But Win XP or Win7 are better.
Don't use Vista.
Regards
Paul
DUDE, this is the tool for you.
Every day it gets better and better....
In fact, tonight I'm considering releasing the latest AUTOCAL breakthru for the A6 CARS....
Stay Tuned!
Chuck CoW
Last edited by Chuck CoW; Feb 1, 2011 at 07:25 PM.





I'm waiting for a reply from EFI LIVE on the PC min requirement....
UPDATE:Here's your answer from EFI LIVE's Creator...
So far, I've had a few customers running windows on a MAC and efi live works just as if it's on a pc.
DUDE, this is the tool for you.
Every day it gets better and better....
In fact, tonight I'm considering releasing the latest AUTOCAL breakthru for the A6 CARS....
Stay Tuned!
Chuck CoW
Thanks.

A reputable tuner generally starts out with a tune from a similar set up and goes from there. This was pointed out in Greg Banish's books. I think he also said, a monkey could tune a car for WOT. Its all the other functions where they earn their money like start up, idle, transition, economy, etc.
However, on this forum, its generally not permitted to post threads naming who is not a reputable tuner. While it may be a good policy otherwise it will turn into a flame-fest, I wish there was a certification process because the way it is now, anyone with a PC and HP Tuners/EFI Live can say they are a tuner.
Most professions have a certification process but to my knowledge, there is none here.
Last edited by Mez; Feb 1, 2011 at 10:13 PM.
and now they want their old A6 back!
People will find it hard to believe, but I know a few guys in that position right now....
A properly tuned A6 car is LOTS OF FUN!
Chuck CoW








