CONMAX

where are the before and after hp and tq graphs? all i have see in the tread are like made 20 more torque, hp about the same.

all of other dyno tuners show a baseline pull compared with tuned pull. then they the affect of mods like CAI, cam, headers and porting.

why don't the diablo example follow this easy to understand approach?

Mike@DiabloSport

This is tuned vs stock, hot pulls on a stock Z06. We don't do testing on other aftermarket parts, thats a giant can of worms

xp800

Mike, you may want to update this image in your OP. Link is currently broken there.

Rguy271

Diablo, whats up with those dips around 4krpms?

Deuuuce

Excellent delta! What are the peak differences? Hard to read on the graph.

phantasms

Curious.

I'm not terribly up on what happens inside car's ECU.

My dealer did an update that seems to have gotten rid of the heat soak. The car no longer feels slower when it reaches normal operating temps. In the past it was noticeable. Would using your base 93 DS tune (with ~15 throttle boost) overwrite the improvement that was made or would that be a different set of tables?

why oh why didn't GM give us the better throttle response to being with?!?!?

Twowheelin_wildman

Hey guys ,been out of the loop for awhile, Did diablo ever get a tune upgrade for an A8 Z06 for my intune i1000. Hope im not looking too lost ,sorry I haven't followed faithfully..

Dougpaper

After going back and forth with your tech support they claim my 2015 z06 has a early pcm and there is nothing they can do I should contact my dealer and ask for a update. My dealer won't and I feel taken advantage of by your company. No where is there a disclaimer alerting potential buyers to this situation,I would like a solution that doesn't involve my dealer telling me they won't install upgrade pcm flash?

phantasms

Doug what vin number are you? I'm 27....guessing this means it won't work for me either.

dar02081961

Gents;
I went through this in early 2015 when Diablo introduced their tune for the Z.

It seems they did the tune based on the earliest 2015 Z they could get a hold of. However there were quite a few cars produced before that time frame. Therefore those early VIN's unfortunately aren't covered.
I know it sucks but it is what it is.

I was able to get my service manger to update my PCM free of charge.
First off I never told him (on the record at least) anything about not being able to upload a tune or anything of that nature.

My approach was, I have an early VIN and GM has come up with several minor updates in the first 6 months of production for various things. Mike was able to give me updates available for my Operating System.

So armed with that info I pulled the service manager aside (he's a car guy) and I told him I had purchased a new diagnostic scanner as I do much of the work on my car myself. However the scanner wouldn't interface with the very early 2015 VIN's for Z06's produced within the first 6 weeks of Z06 production because those cars were actually running a preproduction Operating System (OS). I asked if he would help me out by updating my OS. I told him there were diagnostic updates from GM for the 2015 OS that helped with the following codes. I explained that I wanted that update because in the future when I was out of warranty if the issues these updates address occur I couldn't get the update free from GM at that time. And I wouldn't be able to diagnose it with my scanner either. In short I wanted the update that covered these codes specifically P16F3.

"The New calibration with diagnostic enhancements for DTCs P0503, P16F3 and P2227." GM PN 12671230 CVN 0000F211.


My point is if you have good relationship with your service manager/service tech and you have a fairly honest story often times they will work with you.

If you get this update the Diablo will work as advertised.

phantasms

Thanks man. Is there any way to tell what version my car is running? My car was built on the first day however the dealership is solid and is always updating the car every time I come in. Did they update this specific thing? Well I don't know for sure.

At what point does the Diablo fail if the car isn't updated. I have a unit I use on my Tahoe so maybe I can check if there's not an easy way to tell otherwise.

I do have a very good relationship with my SA and tech but would rather find out on my own.

At the end of the day I'm still waiting for someone to come forward and say definitively if the Diablo is a good move. I've spent days looking into this thing and all these independent dynos showing no gain are scary. I know it's more about drivability but I have a manual and frankly don't want to touch the computer if all I'm doing at the end of the day is decreasing torque management and heat related timing pull a bit.

Best,
Gene

dar02081961

Gene;
Our VIN's are close and yours is earlier than mine so I am sure yours has the earlier OS unless it was updated during a dealer visit.

The only way I know of to read the OS is:
1. Get it from the dealer by providing the VIN or the car to them.
2. Have it read/scanned using a scanner like Diablo, HPT or EFI Live ect. This is read only and wont void the warranty.
3. Possibly locate it in the infotainment screen, ask ONSTAR or look on your ONSTAR report. Not sure about any of this because I haven't had cause to look since I have HPT and Diablo.

Regardless your guy at the dealer will probably hook you up.

As far as the Diablo tune I wont comment.

However I would like to see the independent dynos if someone could post them or a link to them.

eric04