inactiveuser92616

In my opinion an economy chip would be better suited to use premium fuel. You can get a little better efficiency out of the charge by advancing the timing further than you could with standard fuel, and/or have a leaner cruise. The price increment for premium over standard is miniscule, when compared to the base price of fuel.

bearone

years ago i got better mileage running chevron super-duper but it wasn't enuff to offset the increase of $0.30-0.40/gal cost.

87951
95sl320 dd

John_AZ

I would be interested to get 30 to 35% savings. If I could increase my mpg from 22/25 (city/hwy) to 28/32 I would be impressed.

The chip would be more effective if all of the 20+ year old cars had perfect maintenance. ie:a disclaimer: If your car needs basic tune-up and repair, do the work first before you order or install the chip.
The mpg improvements may not satisfy some buyers.

Typical normal standard and/or performance improvements-basic maintenance.
From 9xauto.com
http://www.9xauto.com/hgrailart.htm

John_AZ
1988 924S + 1987 924S

M758

I think 3 postion switch would be idea.

1= Fuel Econ
2= Stock (for those time stock is good like emissions testing)
3= Performance


Just an Econ chip probably won't go over well.

tk's944

If you need a tester Let me know.

BeerBurner

Correct me if I'm wrong, but don't some 944s run on 87 octane anyway? (Unless I've managed to misread my owner's manual, mine can.) Or are we talking about the S's and turbos?

Of course, I do understand the benefit of a mileage increasing chip anyway... but I'm just throwing this out there.

BB.

Wipeout

I think you're right, we're currently talking turbos as the NAs can run 87. I wonder if the chip would help the folks who run on 87 out much.

rberry951

I posted this feeler thread on turbo and non-turbo forums, you can indeed run 87 on most NA cars, and I can indeed make them get better gas mileage on any octane fuel, what one gentlemen mentioned about having multiple images along with the mileage image being a more attractive proposition is exactly what I was thinking with the multi-board, giving you up to 8 different maps with a flip of a switch.

No, I don't think anyone would be that interested in a gas mileage chip by itself, it would basically be a detuned, leaned out stock chip. I doubt anyone who wants to drive a Porsche is willing to sacrifice power to save a few dollars, it may be a limited interest application even coupled with the multi-board. That's why it's a 'feeler' thread. If there is sufficient interest, I will develop it, if not, I'll develop something else...

Regards,
Russell

Wipeout

How are the chips for earlies coming?

Calmchaos

I have an 86 n/a and I run premium gas. I tried 87 octane from several different gas stations, and it seems like the car suffers. I also get worse mileage, it seems.
Is this all in my mind? Anyone here with an n/a actually run 87?

Wipeout

I do. Seems completely fine to me...

Calmchaos

Ok... I was thinking it was all in my head. Maybe I'll find a way to trick myself into thinking its actually 91 or 93... LOL. Thanks.
I really do want to run 87, I guess I'm just paranoid.

John_AZ

I have put "regular 87" Chevron or Shell in the pair of 924S for over 10 years. They get a bottle of Chevron "Techron HD concentrate" usually every 6 months. Works for me. The cars need maintenance and be driven.

John_AZ
1988 924S + 1987 924S

Reimu

I run 87 as well and do fine. Russel if you need anyone to test anything out I'll probably be able.

harrisonrick

The inside of my gas flap says minimum 90 RON. So its premium or super gas here.