Steve Wong/911chips.com

[flee27]

I know this is not new or revolutionary feedback but I like to talk positively about good products/experiences. As we all know performance improvements on air cooled Porsches in not a cheap thing. IMO at $600 this chip is the best value for engine performance (good maintenance aside).

I can’t speak for any model other than the 3.2L 911 because that is what I have.
If you don’t have a Steve Wong/911chips.com chip in your car, order one today. I have no affiliation with the company other than I just purchased and installed a chip. Mine was spec’ed for 93 octane w/ a premuffler/sport exhaust. My car is stock other than a premuffler in place of the cat. There are plenty of raving testimonials about this product so this isn’t new feedback, I am just affirming it. This is the most impactful $600 you can spend on your car as far as engine performance.
Car runs smoother, better throttle response, better power, pulls through the entire RPM range with more authority and to a higher redline.

I have no idea how much more horsepower it added. It is not earth shattering in that regards. Just a lot of small improvements that add up to a very noticeable and positive improvement in performance and driving pleasure. All for a relatively small investment.

Get one and enjoy.
Best.

[mark4ton]

i agree 100%. I waited way too long to pull the trigger and it was so worth it once i finally did. Also, Steve is super great about helping troubleshoot any issues you might have.
FWIW, I feel the same way about the WEVO shifter!

[ant7]

The SW chip does indeed improve power delivery and performance across the range, However; as you say; the initial improvement in power is not what its about, its how it affects the drive and feel of the car across the range, had mine in for around 10 years now.
Ant.

[flee27]

Originally Posted by mark4ton

i agree 100%. I waited way too long to pull the trigger and it was so worth it once i finally did. Also, Steve is super great about helping troubleshoot any issues you might have.
FWIW, I feel the same way about the WEVO shifter!

Off topic but can you elaborate on the shifter. I have read conflicting opinions on changing the shifter.

Thanks
Foster

[mark4ton]

Originally Posted by flee27

Off topic but can you elaborate on the shifter. I have read conflicting opinions on changing the shifter.

Thanks
Foster

It modernized the feel of the shifting. It's more engaging and the throw is shortened by 30%. I did opt for the PSJ as well. It does bring extra noise into the cab (as advertised). but does definitely tighten things up.

[dkirk]

I certainly agree with flee27. I have both the Steve Wong custom chip and enlarged throttle body on my 3.2L engine, along with some other modifications. Performance, running quality, and throttle response all improved over stock.

[flee27]

Originally Posted by dkirk

I certainly agree with flee27. I have both the Steve Wong custom chip and enlarged throttle body on my 3.2L engine, along with some other modifications. Performance, running quality, and throttle response all improved over stock.

Did you do you enlarged throttle body separately from other mods? I guess what I am really asking is can you quantify what the noticeable improvement (if any) were?

Thanks

[Peter M]

Originally Posted by flee27

Did you do you enlarged throttle body separately from other mods? I guess what I am really asking is can you quantify what the noticeable improvement (if any) were?

Thanks

I was unable to identify any improvement with a bored throttle body on my modified 3.2. It felt great but after objective testing I proved once again how unreliable our butt dyno is. I did a post on my findings a few years ago.

[dkirk]

The 3mm enlarged throttle body was installed along with the custom chip. I noticed a difference in throttle response over the stock throttle body and my previously installed SW chip. But as the two mods were done together, I can't say that the throttle body is the main contributor.

I'm planning to have my car run on a chassis dyno this summer and will report the results along with all engine modifications.

[darrin]

Originally Posted by Peter M

I was unable to identify any improvement with a bored throttle body on my modified 3.2. It felt great but after objective testing I proved once again how unreliable our butt dyno is. I did a post on my findings a few years ago.

as I understand it, the larger throttle plate in an enlarged throttle body allows more air into the engine at the same part throttle position as a standard-sized throttle body. This provides the "butt dyno" perception of increased (part throttle) performance/different throttle response. However, since the throttle body's diameter is not a significant pinch point in a stock or mildly tweaked 3.2 Carrera engine, full throttle performance (as tested on a dyno) is not materially affected.

[dkirk]

Darrin, I totally agree. And if there was a power gain to be had, it would be slight and only at the top end of the RPM range of the engine.

[mysocal911]

Originally Posted by Peter M

I was unable to identify any improvement with a bored throttle body on my modified 3.2. It felt great but after objective testing I proved once again how unreliable our butt dyno is. I did a post on my findings a few years ago.

You are absolutely correct, as exemplified by other testes over the last 10+ years.
The idea is totally laughable, when one considers ALL the key variables for intake air volume.

Consumer naivety always results is wasted money!

Found this Pelican Parts thread; Performance Tuning - The Myth -

[ant7]

Hi Loren,
I wondered when you might show up
I do agree on the throttle body conundrum though, unless your doing serious increases elsewhere, its pretty pointless, and can in some cases cause adverse effects.
Ant.

Originally Posted by mysocal911

You are absolutely correct, as exemplified by other testes over the last 10+ years.
The idea is totally laughable, when one considers the key variables for intake air volume.

Consumer naivety always results is wasted money!

Found this Pelican Parts thread; Performance Tuning - The Myth -

[stephen1070]

dkirk - please keep us informed on your custom wong / chassis dyno activities.

This is on my 'to do' list. I have run an SW chip for 10 years along with other mods but want to dial it all in on a dyno.

Regards,
Steve

Originally Posted by dkirk

The 3mm enlarged throttle body was installed along with the custom chip. I noticed a difference in throttle response over the stock throttle body and my previously installed SW chip. But as the two mods were done together, I can't say that the throttle body is the main contributor.

I'm planning to have my car run on a chassis dyno this summer and will report the results along with all engine modifications.

[mysocal911]

Originally Posted by stephen1070

dkirk - please keep us informed on your custom wong / chassis dyno activities.

This is on my 'to do' list. I have run an SW chip for 10 years along with other mods but want to dial it all in on a dyno.

Regards,
Steve

Oh, so you're going to "performance tune" your 911 3.2, right? What "tuning-app" will you be using?

[stephen1070]

Dave,

SW chips can 'flash' a chip specific to your (my) 3.2 based on actual dyno run A/F data.

So although my chip seems to be fine 'as is' based on all of Steve's experience, I thought why not send him data from a few dyno runs and have the chip flashed to my car.

I'm open to hearing why this is a good, bad or marginal idea. The obvious answer is that this is silly because he's likely 99% there already based on how much data he has accumulated over the years.

The argument against that may be that why not get to 99.5%.

Regards,
Steve

[917_Langheck]

Here we go again....

May as well start an oil and filter thread while you're at it.

[famoroso]

Originally Posted by Lorenfb

Found this Pelican Parts thread; Performance Tuning - The Myth -

Linking to a thirteen year old closed thread that had devolved into hot garbage. Gee "Dave," that must have been really difficult to find.

[famoroso]

Originally Posted by stephen1070

Dave,

SW chips can 'flash' a chip specific to your (my) 3.2 based on actual dyno run A/F data.

So although my chip seems to be fine 'as is' based on all of Steve's experience, I thought why not send him data from a few dyno runs and have the chip flashed to my car.

I'm open to hearing why this is a good, bad or marginal idea. The obvious answer is that this is silly because he's likely 99% there already based on how much data he has accumulated over the years.

The argument against that may be that why not get to 99.5%.

Regards,
Steve

OMG, Steve! I LOVE that you just explained to "Dave" what SW can do. Too bad you couldn't understand it for him too!

I have a few decades worth of real world experience with off the shelf 3.2 chips (SW, Weltmeister, Superchips, Autothority, Sal Carceller, etc) in MANY different 3.2s. I've tried / run different MAF conversions too. The shop I worked at installed many Weltmeister 3.2 chips in-period. I've had numerous cars tuned on the dyno, including a pair of 3.2s. Steve Wong dyno tuned my former '88 3.2 and one of my current '87s, a 3.4, with his throttle body. Send me your number via DM if you'd like to discuss the particulars. Happy to discuss the objective and subjective, real-world, pros / cons / good / bad / marginal of all the above.

[stephen1070]

Thank you Frank - I have enjoyed seeing your car on several occasions during the Monterey Auto week and I have a file of pictures for reference.

I do want to memorialize my mods and the proven BHP for 'Dave' - keep in mind my 3.2 has never been opened, good compression tests and 132,000 mi, your results may vary.

I exclusively use Chinese oil filters and Venezuelan oil.

Decat pipe 21 bhp
Stock exh cut open, cut up, welded back up 8 bhp
Cup air box 18 bhp
Enlarged TB 15 bhp
Extrude Hone intake 2.9 bhp
Clean air filter 7.1 bhp
SW Chip +/- 69 total
Round off or up with over rev 77 BHP