NEW PRODUCT!! KPTuned Gearsets

July 26, 2019

*** Product Release Notice ***

We are proud to be distributing and stocking custom 02A/J gearsets here in the US. We have worked with Saphino on custom ratios for this application taking into account the tire sizes used on most of the race classes here. These gears have been tested on the quickest FWD VW in the world.


KPTuned Dog Gears

Fitment 02A/J
Dog engagement & Syncro
1-4 gears
Retains stock VW ring and pinion gears

Dog Engagement $2200

Syncro Engagement $1800

Transitioning Products to PRO Units

June 30, 2015

Over the next few months we will be phasing out our in-house assembled options to further support the development of Microsquirt and MS3-Pro units. After doing many sales and installs these units provide the best long term value to the end-user. Moving away from assembly will allow us some extra time to focus on custom Microsquirt and MS3 based units for specific applications as well as a few other products we’d like to offer in the future. We will continue to support all existing installations, as well as offer new support packages with all our new products as they become available.

As always we’re a distributor and rabid supporter of the guys at DIYAutotune and will continue to use them as well as other reputable vendors for our lines in the future.


We will continue to have our repair services as long as they continue to make sense. Please contact us in advance for RMA authorization prior to shipment.


Stay KPTuned for further information!

It HAS been awhile!!

December 3, 2013

It’s been quite a long time since our last update, and shame on me! Keeping busy with life, working, and keeping my customers happy in this last year. Orders for MS3 variants have been coming strong, and with the MS3/3x unit’s setup and configuration is always key to getting people up and running as quickly as possible.


In the near future we will be offering different support packages for the MS3-Pro units to complement what we have done in the past with MS1, 2 and 3 units. Likely we will be offering a web-store for these units as they can be easily configured by the user after wiring is complete. We will still be offering all the kit built variants on a personal-order basis for the time being.

The KPTuned GTI VR6 project is coming along, although slowly. Look for an update around the holidays.

As always we welcome and appreciate all the business that our customers throw our way, and we’re really thankful this holiday season for all the friends we have made along the way. THANK YOU!

Communication and juggling, what do they have in common?

December 28, 2011

Lots of balls?

Seriously though, as you can see from my last post (which was a long time coming!) there are more then a few things going on that I’m trying to make progress on.

  • Support of existing customers install and tuning
  • Meeting current orders in a reasonable period of time
  • Pre-sale support/Q&A
  • Tuning local and remote installs
  • Developing new products/innovation
  • VW Drag Racing program

Now that I wrote it down, I think that’s more then what it has seemed!! Each of those things requires some head space, and there are things that ALL of you can do to help me out:

  • Include history in your emails
  • When calling leave messages including call back numbers/email
  • Text messaging – include your name/contact info especially if you are a new customer or someone whom I don’t talk to regularly
  • Be patient – I get lots of calls, and when I do have free time at home it’s not always easy to call back due to ambient noise level (parents will understand that one!)

As always don’t hesitate to contact us, we will try to be as accommodating as possible. However, going a short way to help us help you, it will make information turns much quicker.

Again, thanks to all of our existing and future customers for their interest in KPTuned!

Paul Kiernan
610-248-6490 (cell/txt/pic msg)

KPTuned is moving!

November 18, 2009

KPTuned is happy to announce that we’re moving. Along with a new personal property will come a new larger space for Megasquirt system assembly, repair, development and testing. We will also have much more room for installs, which has been a big limitation for us over the last few years.

The new address will be:
105 Sunset Rd
Oxford, PA 19363

Please DO NOT send anything to us for modification/repair without speaking to us first!

Due to the move we will be closed from 11/25-12/2 and have limited internet usage during that time. Stay tuned for further updates!

Dyno Results – KPTuned 1995 GTI VR6 – GIAC vs Megasquirt

March 31, 2009

As most of you know I recently got my personal car running on an MS1 V3 and I’m able to switch between the stock ECU and the MS ecu rather easily. Below are the results:

As you can see the gains are about 3-4whp through the entire curve, more down low where the stock ecu runs pretty lean and a bigger gain up top. Also the ability to rev about 500rpms higher is nice, I’ll be able to wind my shifts out a little more for better before/after shift power matching.

The results were replicated within ~1whp with three back to back pulls on MS. I didn’t have enough time on the dyno to let the car cool down to the levels at the beginning of tuning, but the results might have been just a touch higher.

You can have better then a chip tune, even a ‘really good’ one.

Stay KPTuned for track results shortly!

1995 GTI VR6 on Megasquirt!

February 24, 2009

Exactly, another definitive how-to with actual information! I spent a few hours this week finally putting a MS setup on my personal 1995 GTI VR6, and here is how it turned out!

First off here is the information thread for distro cars, LINK just in case someone is looking for that information.

The car in question is a 1995 GTI VR6 running all factory sensors with the only exception being an Innovate LC1 wideband and a 1.8T open element temp sensor. It has been running a stock GIAC chipped ECU for a long time. The only addition to the engine bay is a single vacuum line for the map signal. The car is using a stock VR6 coilpack with integrated ignitor.

The board was built and setup tuned here at KPTuned

MS1 V3.57


Board mods/hardware:

VRIN – TSEL (JP1 1/2)

TSEL – VROUT (J1 4/5)

Bottom VR pot fully CCW, top pot a few turns CW from fully CCW

Glen’s Garage Error* Daughter board for all the ‘extra’ circuits

I used the daughter board to make adding the extra circuits a little easier with the 3.57SMT board that doesn’t have a proto area. I will post the circuits I used to help those that want to use a V3 board instead.

Ignition triggers are from the LED’s but the 3.57 has internal 1k pullups, the triggers com from PAD1, PAD2, and PAD3 for D14-16 respectively.

Similar to this circuit, but for each LED using a 1k pullup:

Tach output circuit, use a 4.7k resistor where 1-10k is listed:

FIDLE output for stock 2 wire idle valve:

TIP120 for PWM idle valve with 1N4001 flyback diode between output and 12v Remove Q4, Q20 and R39. replace R39 with a wired link or solder the (E) emittor to the right side of position R39 rather than at the Q4 position.

MAF wiring below, it uses a 12v power and ground, a signal ground and outputs 0-5v based on airflow. The Ford one is the same:

Outputs for Smog pump relay and CEL light are below. I’m going to be using the smog pump wiring and relay for a small fan in the future and use the CEL for a shift light:

Launch control and table switch circuit, table switch is on JS9, Launch JS11:


I have posted decent msq’s for both 029y4 and Hi-Res HR10g, both can be interchanged on a settings level, VE tables are different. Caution the 029y4 file has a ‘wrong’ req_fuel and if you plan on using it set it correctly and scale the VE table by .72. You will have to login to download the msq.

This is the first install that I’ve tuned with the new EFI Analytics Tuner Studio package, but I suggest to all to check it out HERE.
It is

All VE analysis was done with EFI Analytics MegaLogViewer package, it made tuning the car a single person operation. Details HERE


Wiring is straight forward from a cut up Motronic ECU connector to the MS DB37 connector. This is so I can switch betwen the MS and stock ECU setup for back to back testing. The pinout is posted below, be aware that some of the pins for ‘extras’ will need to match the location in hardware modifications:

Wiring Schedule:

Motronic T68 Pin # —- MS Pin # — Function

1,7,33,42,55,56 —- 8-19 — Ground

36 ———————20——– IAT+
68———————-7———-VR-/VR Shield
23———————-27——–PWM 12v
23———————-28——–12v supply
53———————-36——–PWM Idle (Fidle)
8————————3———Spark A Cyl 1/6
52———————-4———-Spark B Cyl 2/5
60———————–5———Spark C Cyl 3/4
6———————–37———-Fuel Pump (Relay)
28———————37———-Heated O2 (Relay)
49———————31———-Fan/Smog Relay

Non VW wiring
4—————-Table Switch
5—————-Spare Gen Output
6—————-Future Cam Sensor
7—————-Spare Gen Output

Gen Output Additional relay:

T68/9 needs to be pulled to ground to turn the ECM relay on. There’s a 12v ignition hot supply on T68/38 that does this for the stock ECU. Relay wiring below:

Relay Pin——-Motronic Pin




86 ————–T68/7

The above circuit should only be needed for OBD1 installations, OBD2 will switch on the ECU with ignition hot and doesn’t use that relay.


I only got a chance to tune the car for a few hours but a few things are definitely different from Motronic. I always had a little miss/stumble/roughness around 2k with this car. Both with the stock head, 262 cams and the 268s. The MS totally cleared this area up.

The car seems much happier with the raised rev limiter but that did lead to the demise of my clutch. High rpms seem to back my pressure plate bolts out so I won’t be able to get dyno results until it’s all fixed. Even with the limited tuning it does run well without any real issues.

Snippet of the datalog where the clutch decided to stop working correctly. Yes, that is 8000rpms.

Unfortunately that is all for now, but stay KPTuned for dyno results!!

KPTuned 2008 Season Wrap Up

December 11, 2008

Thanks again, all, for visiting!

It’s been a very exciting year racing the KPTuned ALLMOTOR GTI, ending the season with a new best ET, after the addition of some hotter camshafts. The last race of the year, at MIR’s World Cup Finals, unfortunately didn’t go as planned due to some shifting problems. The only two passes in the car were mid 14’s @ 100 without being able to engage second gear. The car will come back strong in 2009, with some much needed maintenance and a few modifications.

We would like to thank Joe @ The Race Shop and all the folks at MJM Autohaus for their support of the car this year!

The KPTuned ALLMOTOR GTI will continue to race in Battle of the Imports and MIR’s IMSTAR Series in the Street Stock class for 2009.

We’re planning some changes to the car over the winter which will include a custom KPTuned Megasquirt standalone engine management system. It’s been in the works for quite some time, but it’s been sidelined to get as good as possible ET’s with the factory management. The system will include the normal features of all of our systems, with the addition of two staged shift light outputs, launch control, fan control, and support of the stock coilpack!

On the product front we will be officially be offering “Plug-N-Play” wiring harness services in 2009, upon request. We have done this before for local customers wanting to be able to switch between their KPTuned system and the factory engine management. Now we have completed enough of these systems to be comfortable offering these to all our customers! Pricing is quite variable depending on make, model and options selected so don’t hesitate to contact us for a quote.

We are also going to be offering ‘on location’ wiring, installation and tuning services in 2009. Please contact for pricing!

Again, thanks for visiting and supporting KPTuned. We look forward to working with everyone for a sucessful 2009!!

KPTuned – Closed!!

September 12, 2008

We will be closed from 9/13-9/21, all emails will be handled when we return! Thanks!


July 1, 2008

Welcome to KPtuned.
MegaSquirt tuning, building, installs and troubleshooting.
Naturally Aspirated Volkswagen Drag Racing.