I Just installed the SLP Diablo tune on my 02 SS and changed some of the peramiter's like turning off the CAGS and torque reduction and also lowered the fan on and off temp's. Holey S%#T it's like a night and day seat of the pant's difference. The car never felt as strong and responsive as it does now! Why don't I hear more about the Diablo here it seams to have some good feature's like turning the MIL light off created by some mod's and it made a huge difference in how my car run's. I can't wait to get to E-Town and find out the real number's, I'm betting on 12.85 to 13.0's what do you guy's predict? I ran 12.88 in a C-5 with pretty much the same mod's witout the tuner at 111mph on runflat's 5 years ago and this car feel's as fast if not faster. I will post my ET as soon as I get out to the track. This was the best $430 I have spent on this car yet. Next will be SFC's and LCA's SSRA and when I blow up the 10 bolt a Strange 12 bolt and Spohn Torque arm.Untill then I'm looking to race my friend's ZO6 and see how I do...

 

From what I gather, anybody who is serious enough to mod their car enough to require a re-tune, cough up the extra 100 bucks or so and get a professional dyno-tune. Then the diablo's tuning capabilities are useless. Plus theres a place (i dont know the name off the top o the head) that does core exchanges on pre-tuned boxes.

 

The changes you mention with the tuner haven't increased your engine's performance. Turning of the ASR (torque reduction) will make the car feel wild because the computer no longer inhibits wheel spin although I'm pretty sure you must have done this with the switch from time to time? If the hand tuner has a performance option, and you chose it, then you will likely improve your track times. If you break into the 12s I'm going to be impressed. I will watch this thread.

As long as your car is running right and stays fairly stock, as it is now, the hand tuner will give you a few tenths but as GhostZ28 says, serious mods require pro tuning and a dyno tune is the best.

regards

 

I really don't know why guys post up on a subject that you don't know.
I have a Predator and my car is pretty serious. You can get a full custom tune e-mailed to you or you can get your car dyno tuned and still use it.
Where a Predator really shines is when you don't want to tune it yourself and you're too far from a reputable dyno tuner to get that done.
And what would make a mail order pre-tuned PCM better than getting new tunes via e-mail??? The person doing the tuning is in the same boat ie. writing a program for a car that isn't there.

 

You are very wrong. I ran 12.15 @ 110 with a lid, Loudmouth, ST3500 torque converter, and Predator tuner on sticky tires.
Having torque management reduced or eliminated in the PCM has nothing to do with ASR functions. Do a search here or on LS1tech on torque management

 

My reply was out of my limited experience. It's an open forum where we can learn and be corrected. I thought I knew something and apparently I am wrong and stand corrected. I would delete my post if it were possible.

Your response really comes across as angry. I'm amazed to get such a terse reply from a forum moderator over something like this.

 

It didn't seem like an angry response to me . . . You might be a bit too sensitive about this . . .

 

Not really angry, iritated, yeah. I've been using my Predator since they came out with one for the f-bodies and it's worked great. For a stock car with converter then an new program for the heads/cam combo all have worked great. I have Autotap to scan my sensors and the tunes from my tuner for the Predator are very good.
It just seems that any mention of handhelds and people who have never owned a Predator is bad mouthing them.

 

I'm not bad-mouthing the hand held's. And saying I dont know about something is kinda harsh, but I do know that getting a pro tune, compared to a handheld, is much better, thats all I was saying. Find me one person who would take a handheld over a pro dyno tune.

 

I went to the diablosport web page to see the features and it a is far more sophisticated tuning aid than I realized. Had I known of the Predator I would not have added my opinion as such.

I know the consensus on handhelds. I own two hypertechs and assumed there wasn't a vast difference between them and their competition. Apparently I am wrong and there is no actual comparison. Like smallblock458, I too wonder why these tuners haven't gotten more notoriety. The list of what the predator can do is impressive. Things like adjusting fuel tables and tuning a maf curve isn't for the unwashed masses. Why after reading through forums over this period of time that I haven't run across the advantages of the Predator leaves me wondering. I specifically look for this sort of information.

If we're beyond my ignorant presumptions and you're no longer irritated with them , can I use smallblock458's thread and ask you a question or two? Right now I have an issue with my a/f being nearly 14.5 @ wot. My dyno numbers aren't what they could be because of this. Assuming the Predator can adjust my maf and/or fuel tables for this, can you give me some idea what it looks like making this sort of adjustment with the handheld?

I see the FAQ section on diablosport's website btw and will use that if you would rather not answer the question here.

thanks

 

And you might not be sensitive enough ...

I'm still looking to understand the torque management with the predator. There are about 300 threads that contain the term but so far nothing as for describing it. It isn't explained on the diablosport web page that I can find.
Any info is appreciated.

regards

 

See your not reading. I meant that you don't have any personal experience with a Predator tuner.
You can get a pro dyno tune with a Predator. Several shops now use the Diablo sport tuning software on the dyno or you can convert an "edit" tune to a Predator tune after the fact. It doesn't have to be one or the other.
I have a low 11 second heads/cam 2000 Formula with all of the bolt-ons and it's tuning is done with a Predator, full custom professional tune. I log the sensor output (street driving first then track runs), e-mail it to my tuner, and he tweaks the tune and e-mails it to me. I log some more, send some more e-mails. It's as professional as it gets.
Yeah IF I had a guy near me that I trusted to dyno tune my car I probably would have went that way. Not everyone lives just around the dorner from a pro LS1 tuner.

 

torque management is a protocall built into the PCM by GM. It calls for power to be reduced at abuse times during driving like WOT shifting. Some years and models have it worse than others. GM increases the effects as years went on so the latest cars are worse and the automatics are worse than the sticks.
On the auto cars you can feel it really bad when going down the track. When it shifts there'll be a feeling that the car lost some power then it comes back. Well it did lose power. When a tuner takes out TM it just bangs into the next gear and I've seen good improvements in ET after having it removed.
But be warned it will add extra strain to your drivetrain and could cause premature failure of you trans. Hasn't hurt mine, so far (knock on wood)

 

Everyone makes that ***-u-me ption. The Crane and Predator are very different from a Hypertech. Every product has to be taken on it's own merrits and not pre classified in with simular products.
When buying engine parts everyone looks at each different cam as being different, each different brand of ported heads as being different, and so on. But handheld tuners get all thrown in a lump as being virtually useless without even a second glance.

 

I appreciate the explanation. I wish I had known these things before now. Although I never bought a new hypertech, I wish I had put the money that was spent toward a real hand held tuner instead of a tweaker.

Looking at the Crane Powermax online PDF, I can see power tuning options for cam and injector performance. I wonder if I can "***-u-me" the diablo approaches the the fuel table and maf curve adjustments in a similar fashion?

btw, I looked the faq for the diablo over at diablosport's website and there's not enough information there to determine well enough (for me) what the unit fully does. I'll have to keep looking and asking around to find that out.

One of the reasons the hand helds have been lumped together is that people either haven't asked or others aren't / can't offer enough real information on them. Then people read other people's "***-u-me ption"s many times over and begin to think it must be pretty solid fact. Then there are people like you that get irritated when people like me speak out on something ***-u-me d. Everybody makes mistakes and like you, I've made a half century's worth.

Once again, thanks....