Autothority vs. Steve Wong chip

[skinnerd]

I was going to wait to send in my results....but the timing looks right.
I have an RS replica weighing a little over 2200 lbs with a Motronic powered 3.2.
It runs SSI's, a larger throttle body, Pressler twin pipe sport exhaust, Carrera "sport" cams and until tonight, an Autothority chip geared for these types of mods.
I've had the Autothority chip for at least 6-7 years and it was a useful upgrade over the stock chip.

After reading post after post about Steve Wong's chip, I finally said "hell" or something along those lines....what have I got to lose, as Steve guarantees your satisfaction.
When it came time to install the chip, something was different on my DME board, so being uncomfortable with what needed to be done, I shot the entire DME down to Steve and he completed the install on my board quickly and cheaply.

Just installed the DME in my car tonight.
Of course if fired right up and idled great.
After a full warm up, out into the damp and rainy Portland evening I went.
I can simply say the difference between the Autothority chip and the Steve Wong chip is startling.
It pulls so strong and clean now, that it really surprised me a bit.
My car was always pretty quick due to the 3.2 and low weight, but now it enters into a different realm.
My buddies on the autocross circuit will not like my car this coming season.
It feels that fast and strong.
And like others have said: idles better, no backfiring on decel, on and on and on.
I can see no faults to the chip.
Except that I couldn't plug it into a 3.8 Varioram maybe.

I am very, very satisfied with Steve's chip, service and prices.
I don't really see how you can go wrong.
I wish I had done this years ago....the difference is that big.

I have a slightly used Autothority chip I WILL GIVE AWAY FREE to anyone who wants it. Serious.

OK...done extolling virtues.
Get it....or be left behind.
-Doug

ps.... I've been driving my car hard for those 6-7 years with the aftermarket chip, and never blew the car up....who would have thought?

[JasonAndreas]

I'm curious why is that people don't individually map their 911s on the dyno and instead rely on a generic chip?

[movin]

First, what version of Autothority chips are we talking about for the 3.2L? There are about 3 versions out there and if you don't match them to your mod's you won't get optimum performance.

[skinnerd]

My Autothority chip was matched to the mods I had on the car.
Steve Wong chip still much superior in my opinion.

Maybe one day I will get the car on a dyno to map the chip more optimally.
That is not always easy or convenient.
I feel I am at least 85% of the way there.
The last 15% will be for another day after further intake mods are added to the engine.

[Vipergrün]

Originally posted by DByers
Something tells me this could prove to be more entertaining Jeremy. (plus Im stuck in the office doing paperwork) Now get Brads car done so I can come drive it!!!

Soon, grasshopper, very soon

Chips are evil.....do a search

[don911]

Here are some dyno sheets comparing the AutoT chip for the MAF vs a custom Steve W chip. engine is a stock 3.2L, cat by pass and stock muffler.
The autot chip for the MAF had a rich A/F mixture. Steve got the mixture where it should be and flattened it out throughout the rpm range. My goal was to get the a/f ration corrected but also got some extra hp and tq. The car runs great at all rpms, idle, WOT all perfect. I give two thumbs up for Steve's custom chips vs the autot.

[KCPSG]

Originally posted by johnnyo
First off let me start by saying I've heard nothing but good things about the Steve Wong chip, that being said I have a Autothority chip which was given to me for my 1987 911 and wanted to know if there was a big enough difference between the two to warrant spending the money for a chip from Steve I don't want to spend unnecessarily for just a 2-3 hp advantage with Steve's chip, I'd rather apply the money to a better exhaust upgrade, Thanks for any insight, Johnny O

Can't actually answer what the HP difference would be for you. But I just recently switched from an Autothority chip to Steve's chip and there is a major difference between the 2 chips. IMHO

Low end responsiveness is much much better w/ Steve's chip and the power seems to be there all the way up to red line.
But when I had the Autothority chip in it seemed like it took more to build power, then @ 4500 rpm it felt like a turbo kicked in to red line.
I ended up using a friends LM-1 to show my A/F ratio's and as it turned out, I was running way too rich w/ the Autothority chip.
I am hoping to get out this weekend to run the LM-1 on the car w/Steve's chip in there to see the difference.

Overall I just wished I had changed to his chip much sooner,the car runs better and stronger than ever before. Steve is a great guy to deal w/

and he can always re-map the chip for you as you add parts.

[ted]

Originally posted by JasonAndreas
I'm curious why is that people don't individually map their 911s on the dyno and instead rely on a generic chip?

That's what I did.
It took/cost two hours on the Dyno and another $15 for the chip.
For $450 I had a custom chip made specifically for my engine and fuel.
Location the Dyno Shop in El Cajon Ca.
Click here for a more info on my day at the wheel dyno.
Note the Air Fuel Ratio on the Dyno chart.


If you get an A/T chip you are stuck with what you get.
No remapping the chip. You should still put it on a wheel dyno to sure you don't have a lean condition.
If it's conservative and rich, then if the AFR were optimized you could have 10hp or more left in your engine.

S/W allows you to custom tailor your chip specifically to your engine, the process is time consuming and perhaps more expensive.
If you go for Steve's custom chip I think you could achieve the same results I did.
It isnt going to happen in two hours and it may cost more than $450.
If you want a custom S/W chip this is the process as I understand it.

1. Install SW chip $$.
2. Go to wheel dyno $.
3. Send results and chip back to SW.
4. S/W re-maps your chip and returns chip to you.
5. Go to wheel dyno $.
6. Is it optimized? Or do you repeat #3 through #5.

If you live in an area where the dyno operator can not write a chip for your 911 then this is a great way to get a perfect chip.

The red lines (Peak 306 hp) are the results from a chip made in 2 hours at the Dyno Shop in El Cajon Ca.
The blues lines are the results from a copied chip I had of unknown origin.

[Carrera3.5L]

I've been fortunate to spend time driving with Steve in the passenger seat with his emulator, LM-1 and laptop as well as with him next to me on the chassis dyno for both engine tuning and product testing.







3.2L before with SW chip, Dansk pre-muffler and Dansk final muffler and 3.5L after with many mods and Steve's optimized chip. Notice the "flat line" a/f ratio in red? On the dyno, Steve coaxed 7 whp and 10 ft/lbs from our initial 3.5L run of 239 whp and 214 torque. Search in the archives and you can read all about it.



I am in a fortunate position that dyno time costs me next to nothing.

Ralph

[HarryD]

Originally posted by skinnerd
...
My buddies on the autocross circuit will not like my car this coming season.
...

Man, just when I thought I might close the gap.....

Sigh

[Hugh R]

I've had two of SW's chips and they're both excellent. The first was good, the second was better and it passes CA smog. My brother drove my car pre-SW chip and then about six months later and he said "Whow, did you tune this thing up or what".

When I first went to Steve (he lives in the LA area) he pulled the DME box from under my seat and began desoldering jumper leads because its an ROW, all I could think was F(ck, I hope this guy knows what he's doing. But it runs so much better, its unbelievable. Gone is that mid range sluggish pull.

[Craig 930 RS]

You've been OPTIMIZED.

Steve ranks up with the top respected doods in the biz -

[goat]

Well I have stayed clear of all threads regarding Performance chips.
But I guess I have only one statement to make.

Hi my name is Tim and I have been running a SW chip for two years No regrets. Great product.

[Wavey]

Hmmmmmm... 32 positive replies based on personal experience. How could any reasonable person argue with that?

[Thrasher]

Easy big fella. Didn't your momma ever talk to you about sleeping dogs?

[Wavey]

You're lucky I didn't comment on your "Johnson" claims, Thrasher!

[Thrasher]

I think you're the only one who read thru all that and noticed the claims. Hey, when you buy a "Wong performance" chip, you should expect something down there! No offense, Steve!

[Joeaksa]

Steve will make a chip for YOUR car, not one that is generic from some large company in the sky. If there is an issue or needs some fine tuning due to a new mod, Steve can do it, while the other guys could care less.

Support a Pelican!

JoeA