Here is a review of my RacePak stuff I have in my car.
Most of the info, part numbers, pictures and prices I got were from:
http://www.motorsportsinnovations.com/RacePak/racepak-Display.htm#iq3
RacePak has a pretty strict pricing structure and all the vendors should have the same prices.
If you are outside California I would just buy direct from RacePak, if within I would buy from an out of state vendor to save on tax.
I have bought my stuff from http://www.figspeed.com/ and they are great to work with.

IQ3 Display Dash $675 part number# 250-DS-IQ3
I have the display only dash and it works great as all of the stuff I need to monitor is right in front of me. RPM, speedo, coolant, oil pressure & temp is on my main screen and I can access AFR's, odometer, MAP, and other information on the next 3 screens.
Everything on the dash is pretty much customizable from the shift light RPM points to the warning lights, read out placement of your sensors, display text, etc. I find that brightness level 4 is a good balance between day and night time driving.

RacePak sells a push button assembly for $99 bucks which allows you to toggle from screen to screen but I made my own setup fairly easily with push buttons that you can get from Ebay. I soldered everything and it cost about $15 bucks total.

I got the blue buttons because its my favorite color.

It has been reliable so far, it sometimes freezes up or has glitches with the temp sensor values being zeroed out but that is easily fixed buy turning it off and back on again. For fuel level, I just used an Autometer gauge because it was previously setup in my car from before, but IQ3 should be able to display it as well.
There is also a logger version of the IQ3 part# 250-DS-IQ3LD which has the GPS and datalogging built in but I found that I really didn't need to log all the info. I also found that the RacePak datalogging was a bit complicated to use at the track and just used my RaceChrono app on my smartphone to get my lap times. Also at $1525 it is really expensive!

V-net modules

RacePak uses a V-net system to connect all of their sensors together fairly easily. Basically all of the electronics are housed in the purple portion of the module and communicates with other RacePak components in a big electrical loop. The wire that RacePak utilizes for their components are of really good quality and more importantly they are shielded from outside electrical interference.

(pic is off the internet and not my stuff but it looks close haha!)
This is why it is important to have the male and female terminator caps installed or you will have a communication issue.

I run an oil temp sensor to the oil pan and use a pressure sensor on my oil filter adapter port. I also have this same water temp sensor in the pic above but do not use it because I can now read water temp from the EFI interface. Prices vary per sensor and most of the sensors sizes are 1/8 NPT if you have to drill for a coolant source for example.

EFI interface $375

The nice thing with RacePak is they have V-net EFI interfaces that will read data from you particular EFI box and display them on the IQ3 dash. All the major EFI boxes are covered such as FAST XFI, Holley, Bigstuff, AEM, MegaSquirt etc. Specific part numbers are in the link
http://www.motorsportsinnovations.com/RacePak/racepak-efi.htm
All of the EFI interfaces cost $375 bucks.
I run a MegaSquirt 3 interface which is not listed but the part number is 230-VM-EFIMSCAN and is basically a two wire CAN high and CAN low connection. Other than the text on the module it looks exactly the same as in the pic.

USM $99 part number# 230-VM-USM

This thing is pretty much required when you run a RacePak system because it allows you to read pressure and temperature and other readings from the engine. It is basically a junction box for items that do not have their own individual Vnet connector and is pretty easy to wire up. I use it for oil temp & pressure as well as transmission speed which translate into MPH and also shows what gear my T56 Magnum is in right on the IQ3 dash.
There is a formula to input into the Datalink II software to program the IQ3 to get a speedo signal from the transmission if it has an electronic output. You have to wire the electronic output on the trans to a USM box and then input a value into the software. The formula for the value or "factor" as the RacePak guys call it is:

tire height x 3.14/12/5280/rear gear ratio x 60 (/ = divided by)

This is handy to have because the GPS speedo does not always connect when you need it or if you are in cities or tunnels

AF-1 Wideband O2 sensor $375 each part number# 220-VM-AF1

I run two of RacePak's wideband Bosch oxygen sensors which are pretty accurate and can monitor my engines driver and passenger side AFR's.
You can also use the white output 5v signal wire as an AFR source for your EFI system. You have to turn them on to let them warm up before firing the engine to get the most life out of them though. Be careful when servicing them as they get super hot, I have already burned myself haha!

IQ3 cover $75 part number# 250-DS-IQ3CVR
While not necessary, I use the clear plastic cover to keep my IQ3 nice and clean from dust and dirt. I have seen other IQ3's that weren't covered and crap gets inside the dash pretty easily. there is also a flanged version that is available.

G2X red box $699 part number# 600-KT-G2XRND

I also have a G2X red box for datalogging stuff for road-racing activities as it has GPS sensors and what not, but I found that it was kind of complicated to use at the track and could not really figure it all out? I don't really use it at all and DO NOT recommend getting one unless you HAVE to have datalogging for all of your sensors and such. All I use it for now is a tach signal but I think you can get that from the USM as well.

Pros & Cons
My thoughts are that the RacePak stuff is a good entry level system and you are provided a reliable way to monitor everything on your vehicle given that it is all wired in correctly. All of the components have to be custom installed and configured for your application but it is really not that difficult if you take the time, patience and common sense to plan your setup. I find the only main negative is the cost of each individual sensor really adds up and gets expensive, but the positive thing is that everything I have run is pretty damn accurate and reliable.
There are way fancier systems available such as AIM and Motec but also at a much higher cost. The IQ3 dash is fairly old as I bought mine new back in 2009 so there have been a few firmware updates. From what I have heard, RacePak may be coming out with a new version in 2016.

Here are a couple of videos that I made going home.
They are really short as I did not want to cause an accident.
Sorry for the shakiness but you get the idea
https://youtu.be/a5RcHWSns6s
https://youtu.be/SR-XPTMaJOU

Information overload for me, but, technology is great. Would be cool if I could interface my GPS speedo with the MS3 somehow though. Then my datalogs could also contain my speed.

Does the GPS speedo have an OUT pin? My autometer electric one (I use the driveshaft with 4 magnets) has an out pin and I have that running into the MS3 Pro I have and I had no issue having a speed on my datalog.

It does not.

Very helpful, Thanks

Three quick questions:
1. There is a fuel level reading possible on screen?
2. How daylight readable is the screen in a track situation?
3. Do you know if they the have a color screen available and cost upgrade

Very cool write up! FYI- you can set up your Megasquirt to datalog everything. External GPS and accelerometers are available for integration as well.

And I see 2 green buttons and a red button. No blue!



http://youtu.be/ilcRS5eUpwk

Hey jcc,

1. Yes, fuel level should be available on screen.
2. Unless you have the sunlight directly on the screen, everything should be easily viewable.
3. As of right now I don't think RacePak has a color screen like the AIM MXS or Motec C125.
Hopefully that changes next year but I doubt it.

Can this be done without all the add ons? I want the street dash primary to read my speedo (autometer sending unit), tach (output from ms3), temp (output from Ms3 or my innovate gauge)...and then my turn signals, hazards and high beams from the factory wiring.

Can these not be wired directly to the panel, or is the v net needed?

For the IQ3 you would need the V-net EFI interface just for the MS3 temp.

There lies the negative of the system as each additional component cost big bucks, and RacePak is one of the less expensive systems out there!

They also have a UDX Street dash that has turn signals. Also I think the "street" IQ3 coming out next year has turn signals and more features as well.

I talked to them at lunch today.

UDX Street Dash $675
MS3 Interface $375
Connection caps $28
UDX programming cable $100

$1180 to have a running dash system that talks to the MS3.

It's disappointing that the dash can't have the controller built in, and simply be programmable. It nearly doubles the cost of the dash to get it working.

Although their stuff is expensive, I can say that the Customer service techs at RacePak are really helpful. They take the time to answer any stupid questions about my stuff and have been treated awesome.

I recently had to get my AF1 O2 controller checked out. I did not send the O2 sensor back to RacePak. The controller checked out normal and they were nice enough to send me an extra $80 o2 sensor for FREE!