How to convert your Toyota 3MZ electronic throttle to wire and TPS

Click here to see how I did this simple conversion.  The link is to my facebook page

2015 Racing Strong Toyota MR2’s. Two cars = twice the fun


A few early announcements for 2015! First off we are building another car. A 1992 Toyota MR2-GR will join the #79 MR2 GTv6 in ChumpCar, WRL and AER racing events in 2015. The new car 179 will be powered by a 275hp Toyota 2GR-FE V6.

Zipline Welding Booms and McKibbin’s Irish Pub Montreal will continue their support of RSm cars in 2015. Lincoln Electric will again be our official supplier of welding equipment. will be the official RSm OE used and new parts supplier. is now the official brake supplier for the Raybestos race brake pads. New for 2015 we have inked a deal with AutoMeter to supply race winning gauges so my drivers can keep up to date on the condition of our V6 engines. will be supplying the needed parts to complete the monster motor swap into the MR2 chassis. Moroso will again be supplying oil products from Accumulators to Aluminum Oil Pans.

Racing Strong will again be working along to develop new and exciting products for the Toyota Mr2 that are race proven. A new big brake system using Toyota / Lexus OE parts and custom Raybestos pads is just one of the new systems that will be available soon. is now the official RSm race and utility light supplier!

2014 racing starts off great for MR2’s!

Yellow 79 at VIR South

Yellow 79 at VIR South

2014 has started off awesome for MR2s in endurance racing.
December 2013 saw Racing Strong finishing 3rd in the ice bowl championship on the Patriot Course at VIR in Virginia. 10 hours of racing in the ice and rain was incredibly fun with our yellow 3MZ v6 powered MR2.
So to start 2014 we headed to Road Atlanta in late February along with Team Biohazard MR2 owned by Troy Truglio to race for 14 hours. We started out pretty good getting into 5nd, and then fell back to 88th place when Racing Strong driver and 2013 Ohio SCCA Driver of the Year (MK1 MR2 D-Production)  Mike Helm lost the right front tie rod on the 1991 MR2 braking into turn 10A. He made it back into the pits where we set out to fix it. Found out the tie rod was frozen on the rack side. So when I would align the wheels it basically unscrewed itself. Lesson learned. We got the car back out on the track in about 19 minutes after reinstalling the rod, and doing a quick alignment.
All the time this is happening Troy and his team in the 3MZ V6 powered Biohazard MR2 take the race lead.
We battle back and get back into the low 30s, but at the 12 hour mark I get a radio call that the car broke. Gene says he thinks the transaxle let go. Tow truck gets back to the pit and we immediately see that the tire is no longer connected to the car, it is sitting up in the wheel well. The Timken Camry hub broke in two at the flange, and then the axle tip broke from the stress.
Troy and his team ends up winning the first race of 2014 in his badass winged 91 V6 MR2. We load up and head home to figure out why the axle broke.
After a few emails to different people, Timkin emails me and basically says that the Camry hub broke due to stress that it was not designed to take. So I picked some 1998 turbo uprights with hubs off a MR2OC member and installed those.
So we head down to Virginia International Raceway near Danville, Virginia for the ChumpCar 12-hour endurance race.
I have Gene Bird owner of Zipline Welding Booms and Mike Helm driving for me. Troy is there with his MR2. He has a new driver, and he is also testing out a few new things.
We start the race pretty well in 8th and work our way into the top 5. A few times we take the lead. I am really concentrating on learning and trying out new “race craft”, trying to time pit stops and getting our pit stops done so we spend no more than 5-minutes total in the pit. We have minimum 5-minute pit stop rules. Safety thing. So I have my 13-year old son Ian sitting on the stopwatch letting us know exactly how we are doing as we fuel and swap drivers and cool suit ice. It is working great.
Troy has some issues, one of his drivers hits something and the left front strut breaks. He also had some ECU issues that were fixed with a quick ECU swap. But he was basically out of contention early. But he was still fast as hell when he was out there.
On the second to last stint Gene takes over and is doing well. He is in 2nd and a big rain comes. The third place car is an Acura Legend V6 and he is very close to catching us.I was pulling faster laps than Gene, so we made a decision to pull him in 20 minutes early when a local yellow popped up. I hopped in, we added 15 gallons of high test fuel, and I headed out on a wet track. Really really NOT fun in the MR2!
I kept us in 2nd until the 3rd place car passed me. I had a very big issue with third gear. It worked sometimes. Under hard braking it may be there, or it may not. And third is a very important gear on the South Course! Troy was coaching me over the radio letting me know where the Acura was.When he passed me, I basically gave up. Save the car and settle for 3rd and a podium. He basically called out my manhood at that moment. I agreed, balls out. 1st or last. That is why we race. I caught back up to the Acura and we both came up on slower traffic. I am really good in traffic. I was able to get past him and boxed him and then sneak in between two cars on Oak Tree leaving him stuck behind me. I then put down the fastest lap I have ever down on VIR South. 01:25.976. What is wild is that I did that in traffic!
We ended up finishing 2nd overall. My best finish racing this yellow V6 powered MR2 over the past 3 years.
Great video of the Acura chasing me down at the end of the race.
Acura chasing down the Yellow 79.
Inside the V6 MR2 with Mike Helm driving. Mike set our fastest lap at 01:25.157.
Our next race is at Watkins Glen May 23 – 25 for three races, 6 hour, 12-hour and a 6-hour. We are bringing spare engines! lol. Come join us if you want to see some great racing!

NHTSA Toyota MR2 Crash Test Results

Screen Shot 2014-02-13 at 4.25.47 PM

I know you just want to see the data! You will need to have a PDF reader installed to view these. 

1985 Toyota MR2

1987 Toyota MR2

1991 Toyota MR2 N/A

1991 Toyota MR2 Turbo


Racing Strong Motorsports Endurance MR2 GTv6 Endurance Racing Team Finishes 3rd at VIR Regional Championship

1991 MR2 GTv6 at speed

A little bit of off roading could not stop the RSm Toyota MR2 GTv6!

RSm’s 1991 Toyota MR2 GTv6 finished 3rd in the 2013 Optima Batteries ChumpCar World Series Eastern Division Championship at VIR.

Ice and freezing rain could not stop the power and reliability of the Camry V6 powered MR2 against some of the fastest machines in the ChumpCar series.

Gene Bird, Mike Helm and Bill Strong piloted the MR2 RSm’s best finish in 4 years of racing in the ChumpCar World Series.

2014 brings some big changes to RSm and endurance racing. 8 races planned with more possible.

ChumpCar World Series Eastern Regional Series 3rd place

RSm #79 Toyota MR2 GTv6

3.3 liter 3MZ-FE V6 Powered 2001 Toyota MR2 Spyder Build – Part 1: Parts assembly

I have grown tired of having to rev the snot out of my 200hp 2ZZ-GE powered 2001 MR2 Spyder. I want the grunt of the V6 in my lightweight sports car. So now the build begins…

2001 Toyota MR2 GTv6

2001 Toyota MR2 Spyder GTv6



    • 2005 3MZ-FE, used, 103,000 miles. I’ll refresh the belts, tensioners, water pump and a few other bits.
    • 2001 1MZ-FE 3 liter VVTi engine harness. This is plug and play on the later 3MZ using the 1MZ VVTi ECU. This allows the use of a non-electronic throttle control. The what? Old fashioned wired throttle.
    • 2001 1MZ-FE knock sensors.
    • 2001 Toyota Avalon ECU, Toyota part number: 89661-07311. I believe this may have had the immobilizer hooked up to it. Cost was $75 for him to zap the ECU back into virgin mode. So I will send it off to:
        Brooke Francisco at AD USA 650-351-8270


        M-f 9am-11pm


        Sat 12pm-8pm


        1435 Huntington Ave. Ste C


      South San Francisco, CA 94080
  • 1997 Toyota 1UZ-FE V8 70mm throttlebody. I’ll have a RSm 1UZ to 3MZ adapter to make this fit on the 3MZ plastic intake manifold.
  • OBX 1MZ-FE stainless steel exhaust headers. These need to be modified to fit the V6 / manual transaxle configuration. They are designed for the Camry. But are easily adapter to work on the MR2. These are some nice flowing Chinese made headers, we also use them on the MK2 yellow endurance racing MR2.
  • Stock modified 3SGTE steel flywheel. Street car, so standard street stuff will be used. Makes driving in traffic easier. Clutch is an ACT HD pressure plate and friction plate.
  • Mishimoto MMRAD-SPY-00 Aluminum radiator. Crash damage protection. The only radiator that RSm uses.
  • NoobieMR2 1MZ/3MZ E153 engine mount adapter set.
  • Moroso 1.5 Quart oil accumulator, for those days that we do track the car at VIR or Summit Point.
  • K&N bigass air filter and BPi Flow Stack intake with Jet Performance Mass Air Flow Meter.
  • Woodsport Performance 6-Speed gearbox with Quaife LSD.

  • 1995 Toyota MR2 turbo axles and intermediate shaft modified using the RSm mount on the intermediate shaft. ST185 26-spline outer CVs.
  • Walbro High Pressure 255LPH fuel pump, internal returnless FPR.

The chassis is already pretty sorted with Eibach Pro springs and Koni struts, RSm chassis reinforcements, and 245 40ZR17 and 215 40ZR17 tires with matching big wheels. Brakes are stock with Porterfield pads.

More to come as we start putting it all together. And when I am done, you will know how to build your own MR2 Spyder GTv6!



How to build a MK1.22 5SFE powered 1985-1989 MR2

How to build a quick and dirty MK1.22 5SFE powered MK1 AW11 MR2

Remove engine latch and latch mounting sheet metal on chassis. this gets in the way. Use hood pins to hold lid in place.
No need to cut battery box out. Keep battery right there. Move later if you want. we see no performance gains in real life. maybe on the internet, but not in real life.
use a 93+ 5sfe with the 93+ S54 5-speed that goes with the engine. Better setup than 90-92 5SFE. But if that is what you have then use it.
Use a Rav4 3sfe exhaust manifold. – lighter and actually more power and it last. cheap too.
hack together an air box or do what I did with a good K&N filter. makes pre-made mounts that you weld in. I did not use the jig, I just placed the engine in where I wanted it. mounted the side mounts to the engine, then tacked them in place. Pulled engine and welded to frame. painted.
I used the Speed-Source front mount and welded up a rear mount using the speed source chassis side for the rear.
Get a Celica 3sgte alternator mount as this moves the alt to the exhaust side and up high. Unless you want to notch a hole in the rear trunk and frame to fit it down low. I just hacked a hole.
stock MR2 1990-1995 5SFE N/A axles fit the transaxle and the MK1 hubs.
Replace electrical speedo sender with mechanical off of earlier S54.
Stock 4age fuel pump works fine. You can upgrade if you want to either 5SFE replacement. I suggest people do that so they know they are getting a good pump.
send 5SFE injectors to for cleaning.
use stock 1990 to 1995 MK2 5sfe fuel lines. The connect up to the AW11 filter and tank return. Replace fuel filter. Charcoal canister from the AW11 works fine as well.
Wiring is really easy. Call David Hawkins to come out and do it for you. Kidding. Use the Paul Woods MK1.5 wiring diagram. 1/2 the wires in that are not used as the 5SFE is really a simple ECU.
have your radiator professionally cleaned. use a new stock MK2 5sfe MR2 engine side hoses. that is the fun part, just slice and dice to make it all fit.
I use a 90s Corolla over flow.
Use the MK2 coolant fill tube and cap.
change oil pump, water pump, cam belt, clutch before putting the engine back in.
Use the MK1.5 SpeedSource clutch hose.

that is it. should take 3 to 4 days to do the swap, maybe 5 or 6 if you have to borrow a socket set. seriously. If you can’t, then please go back to changing air filters on hondahs

Stolen cheap race car building ideas

I have found ideas ion the web to make for cheap and to add some professionalism to your car build. Here are a few we have off the ChumpCar forum..

-RWD Driveshaft Shortening/Building – If you need to shorten a driveshaft or pair the front of one with the rear of another, this method works very well. You’ll need to cut the originals apart, and you’ll want the seam to be as close to either end as possible for balance reasons so keep that in mind when you prep them.Fit them together in the car, paying attention to be sure the yokes are aligned. Start by tack-welding and truing with a poor-man’s dial-indicator: a vise grip clamped to the car so it nearly touches the driveshaft. Keep turning the driveshaft and smacking the tacked weld joint until it turns true in reference to the Vise-grip, then finish the weld. Cheap, easy, and they actually come out balanced really well. Tools Needed: Saw of some sort, MIG Welder, Vise Grip (or some other method of indicating the trueness of the driveshaft)


-Body/Spoiler Bracing from Fuel Line – Fuel line with the ends flattened in a vise and drilled makes for very nice, lightweight body bracing. It’s zinc-plated so it won’t rust, and since it’s meant to be formed, it’s very easy to work with and straighten either when building, or after you get crunched. Buy a straight length of 5/16″ or 3/8″ Steel fuel line from your local parts shop, cut pieces to length, flatten both ends in a vise, then drill holes in both ends, you can radius the flattened ends with a grinder or sander to clean them up. Secure with 10-32 or 1/4-20 Screws and Nylock nuts. Quick, easy, light, strong, cheap, and professional looking. Tools Needed: Vise, Drill

For circle track racing it’s used to support skinned body panels, but in Chumpcar I’ve used them as spoiler braces in place of purpose-built adjustable ones that usually run $20+ each. Beyond that, you could use them as splitter supports, dash supports, etc.

This shows some purpose-built ones used on the inside of a late model nose:


- Get rid of washers under nuts that fall off.  Take a wizz wheel to the nuts face to add some grip to the nut/surface interface.