CALL911

First off, if the fix could be done via email, and he said "a day" and it has been a 7 day week, then I would give him a call just to see what is up. I'm sure if he is later than he told you he would be bothered by it.

As for the premium question, IMO 93 is ideally the best premium to get. Some pumps out there only offer up to 92 octane, and then a few others just 91 octane. Your car was designed from the factory to run off of 93. I'm sure there have been some out there running 91-92 with no noticeable problems. However, my Z was tuned on 93, and there's no way I would ever risk detonation by running anything less than 93. I have witnessed a buddy of mine with just bolt ons running 91 octane and it ran like crap (pinging)! After a tanks worth of 93, it went away. Sunoco a lot of the times sells 94 octane. This also would work. Better to go an octane or two over than an octane or two under.

DelSoto

I have owned this car since it was new and religiously have run 93 until a year ago when they stopped offering it at ANY gas station in my area. Any recommendations on a good fuel additive/octane booster?

CALL911

That sucks! Well, the only octane booster I know of that works excellent, raises your octane level way over 100, and was really expensive, and I wouldn't reccomend to you for what seems to be a mild street car (correct me if I am wrong).

Honestly, I would include this question to Bryan when you talk with him. He may even be able to give you a tune to compensate for this, or advice for which road to go down for your situation.

DelSoto

You are correct. This is just a mild street car. I told Bryan that 91 is as high as I can get at the pump. I'm sure when he gets around to it, this will be corrected.....when he gets around to it. It doesn't matter right now anyways. There is 3" of snow and ice that fell in the last 2 days here. I do not drive the Z in the snow. Thanks for your input!

CALL911

Here in NJ we haven't had any snow this winter yet. It's actually making me mad because I put my Z away for winter storage back in September in a garage back in Indiana where I used to live (USAF, stationed in NJ). And since it has been put away, I have had nothing but day after day of mild to nice wheather I could have driven it in!!!

Bryan is a great guy, I have used him for years on more than a couple tunes. I am sure he will take care of you.

camarodude8703

i've seen two of my friends go to PCM and had to send it back not once but twice for minor mods.. i went MADZ and will stay with him.. one o fmy frineds went from PCM to MADZ and loves it..hope that helps..

CALL911

I have a very hard car to tune (590 RWHP LT1 D1SC with the stock 1 bar MAP sensor ECU all on pump gas!), and Bryan from PCM's did an outstanding job.

Even though I have not dealth with MADZ, I am sure he still does a good job as well. (As most people here are stating)

The Engineer

Down here in the OKC area several of the Sinclair stations have 93 octane. Have you checked the Sinclair stations there in Stillwater? Most people agree the octane boosters are a waste of money.

WD

DelSoto

Im back in Tulsa now....I guess I should update that

foggedz

Last year I fried out my PCM during a tune due to voltage drop. I noticed that Ion was only about 20 min away, so I shot him an email and asked him if he could fix the computer. He said sure, I just droped it off with him. I went to get something to eat, picked it up 30min later, and he even put my tune back in for me. Really helped out on short notice.

I have done all my tuning myself, but after my cam swap this winter, I think I might have pay Ion $75 to give me a good initial tune Then take it to the dyno to make fine adjustments.

Critter

madz28.com tune and very happy with it, 3 days after i ordered it i had it on my car.