Wow... where does all this come from? I think the hundreds of positive posts in favor of Steve's product shows he's quite competant... and, while I don't have his chip yet, I like the way he responds positively and informatively to anyone on this board who engages him. It says alot for his character, in my opinion, which I'm sure reflects in the quality of the product he sells.

-Troy

Very incorrect and it shows a lack of understanding of how 911 motors are tuned from the factory. You should be a lot smarter than that. I will let you in on some secrets. Listen and learn:

Pushing timing only serves to reduce the predetonation margin without a torque or power gain to write home about. To increase torque without endangering the pinging margin to nil levels, it requires that the factory's lean fuel programming be richened substantially upon load and throttle transients to the air/fuel ratio of best power, which is around 13.0:1 instead of the lean smog ratio of 14.72:1, an approximate 20% increase in fuel. The richer mixture does two things: a) increases overall torque, and b) increases the predetonation margin significantly which allows an ignition timing increase in conjunction without the danger of pinging. And regardless of what some may say, the O2 sensor only serves as a guide at part throttle to bring the ratios to 14.7, but can be controlled and ignored on transients, high loads, high rpm, and full throttle.

The factory also programs 911s excessively rich above 5000 rpm to keep the catalytic converters cool when at full throttle on the Autobahn for two hours straight at 150 mph. Look at the air fuel ratio log of a stock 993 for example. But for those of us who don't drive full throttle for two hours, and don't have cats, this only serves to flood the engine and reduce power. If the fuel is not corrected, again, increasing timing at full throttle at 6000 rpm, provides only a tiny increase in power. A dyno will show that if the fuel maps remain uncorrected, a 6 degree increase in overall ignition timing will only show a 3-4 hp increase at 6000 rpm. Here is where most chip tuners fail. If however the fuel maps are corrected to the optimum air/fuel ratio, combined with a ignition timing increase, the hp gain will jump to 16 hp at the same rpm point. Try doing that with your 5 minutes and a 13mm box wrench.

A chip thread simply is not complete without a benevolent post from loren. :D

steve, i have spoken to you in the past and appreciated your wisdom. i would like to purchase one of your chips for my PCA showroom stock F-CLASS 87 3.2. we have gone by the letter of the rules as far as engine mods. ie. a K & N, cat bypass, GHL muffler. nothing else as far as engine mods. we lost one (1) pt for removing cat and also we lost two (2) points for adding tarret camber plates w/monoballs to front end to gain camber for DOT "R" tires. you can loose a total of seven (7) pts. before being bumped into a modified class.

pano magazine a month ago stated PCA was really going to crack down on showroom stock due to all the cheating. after watching one "infamous" shop owner here drive all the way from phx to sebring and get "caught" cheating the second time in another class, and being kicked out of that venue, i really dont feel like wasting my time nor money cheating.

but that doesnt stop me from wanting one of your chips for roadtrips and general terrorizing the populace.

soooooooo..........can i have my cake and eat it too???? since any 15 year old car classified as "collector status" here in az. no longer has to go thru smog, can i just "plug and play " your chip? w/out any hassles? ie. today i decide to go carve the twisties and next weekend i go to the track and switch from one to the other?

thanks for your time.

Wongified my baby some time ago, still trying to get the grin off my face...

Thank you Steve, again.

Loren, why do you still bother, after all this time?
I wonder if anybody has removed their chip after reading your rant after rant after rant after rant....

I just voted by sending in an order for a chip. New tires last week, new chip this week -- the car is just about ready to go. For this week at least.

Paul

Now that this thread is on its second page, I thought I'd stop by and see if Loren had posted any of his usual whining.

Yup. Just as expected.

I swear to god almighty IM sick of Loren and the entire I hate Steve Wong issues he has.

I have yet to read a post from loren (regarding chips) that makes any sense.

Man all this talk of the SW chip really has my interest. I recently purchased a 1989 3.2 Carrera Coupe SA.

I'm getting familiar with my 911 but the thought of crisper throttle response and more torque at part throttle would be a winner.

So...all of you who have done this are satisfied? My car is stock and would like to keep it that way with the exception of the chip.

David

Hell NO BUBBA do what thar Loren says.........Crank up the timming tell she talks to ya and then backer down a hair.............................That there is pure red neck small block chevy tuning..........*****


By all means listen to steve and visit his site.

David, I've never seen one complaint about Steve's chips (from anyone who actually has one), and there have to be many hundreds out there. You might do a search, both here and on Rennlist, to confirm this. In fact not only are there NOT complaints, most seem more than satisfied with the improvement.

Hey Pelicans,

My 924s had a cat-bypass, BB Stainless and a chip. It felt really fast and responsive. So, I am considering a chip for my 85 3.2. Steve Wong has a great reputation, which says something in the Internet age. If you do bad stuff to people, it gets around.

My 1985 3.2 Carrera is totally stock. What is the most common successful and reversible mods? I hear air intake, exhaust and a chip. Can anyone chime in with their setup and what you think about it?

How about a cat by-pass only with a chip? Does the choice of sport muffler make a big difference? I am going to have to sell some stuff on Ebay to fund my Porsche mods, so please recommend something economical. <smiles>

I'll chime in here and say that installing a Steve Wong chip completely transformed the drivability of my car. It has more bhp, torque (especially in the mid range), idles smoother, fuelling is spot on, and no pops from the exhaust on decelleration.

The car was on the Dyno on Saturday. It's got a pre-muff bypass and M&K muffler + an off the shelf Steve Wong chip. The graphs speak for themselves:

http://www.zen78885.zen.co.uk/ForumP...DynoTorque.jpg

http://www.zen78885.zen.co.uk/ForumP.../DynoLMBDA.jpg

I'm very happy, thanks for a great product Steve!

Cheers,

Tim.

tim, any data on the dyno before the chip?

Before the chip the car was standard apart from a DP muffler. It Dyno'd at 239 bhp. I haven't got the graphs at the moment, but should have them to hand later on this week. I'll scan & post when I get them.

My plots from the same dynamometer and on the same day as Tim. My car just has an off the shelf SW chip set for 95RON euro fuel. Everything else on the engine is stock. This is the first run I have done so I do not have any 'before' plots.

My air/fuel ratio not as 'smooth' as Tim's.

http://forums.pelicanparts.com/uploa...1174333345.jpg

http://forums.pelicanparts.com/uploa...1174333365.jpg

Bear in mind that Tim and Chris's cars are both Euro/RoW so factory rated at 231. No doubt Steve is the guy, we have loads of satisfied customers on our boards and the dyno we use doesn't tell a word of a lie (sadly for my Carrera 3's AFR curve LOL).

Keep up the good work SW ;)

Funny how Loren does more to sell Steve's chips than Steve could ever hope for.

My car has some extra mass air flow upgrade and a sports muffler which I was told required a different chip than what came stock. I have no idea what kind of chip is in there, but it seems to surge in second gear. I thought I read somewhere that a Steve Wong chip might fix that...am I mistaken? I don't race my car at all, just want to make it a nicer ride going through town.

I agree. Perception is reality and whether you like it or not - people believe the chip works. I am just a lay person but my 911 seems more responsive. End of story.