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I build a lot of ZZ engines but the majority tend to be 2ZZ. It's nice when every now and then I'm asked to do something a little different and that's what has happened here. MWR was asked to build a strong, reliable, streetable NA 1ZZ engine with the maximum possible output. Here's what I came up with:


(standard notes apply- torque is on a different scale so the lines do not cross at 5250 and the torque curve looks lumpy despite being between 130 and 153 wtq from 3000-7400 which is remarkably flat. Measured on a Dynapack dyno which reads similarly to a Dynojet. Stock 1ZZ's typically register 117-118whp or so on this unit)

- We now offer a 2.75" or 3" short cold air intake for the MR2-S, it works with the 1ZZ or 2ZZ. When I put the 3" unit on this car it picked up 8-9hp over the 1ZZ AEM CAI that was on it though the old air filter was pretty dirty so I don't claim everyone will see that increase. PFC is required since the larger tube throws off the air meter signal scaling. We now have a good base map for this configuration so that can be preloaded in PFCs.

http://store.monkeywrenchracing.com/product_info.php?products_id=1032

- The engine is built to run on 91 octane and be driven daily. If someone wants to run 93-94 octane, E85, race gas, whatever then we can definitely push the compression ratio higher and get more power.

- MWR rods were used to ensure revving to 8k+ would be reliable.

- The Crower stage 3 cams work great. Midrange punch is strong, idle is ok, top end is fantastic. MWR valves, springs and Ti retainers keep valve motion under control to 8k+ and improve flow.

- The port work on this head worked great. We've fine tuned our porting especially on the 1ZZ head and now port them specifically to suit the 82mm bore.

- We've now done this 1zz spyder header a few times and it has worked great. Currently looking at making a batch of them.

- Circuitworx oil pump and Moroso oil pan keep the oil system working great in all conditions.

I'm happy with the results. The torque is fantastic and blows away any 2ZZ short of a built stroker. Like I mentioned, higher compression could push power output even higher. We are also working on a prototype intake manifold that could provide a significant improvement as well. 185 is great but more is always better of course. For now I'm happy with a ~77hp increase at the crankshaft. 215hp at the crank from a lowly 1ZZ!

If anyone wants to bring their car here so I can build the first 190+ whp NA 1ZZ let me know. I'll get you a quote :) Seriously though, if you're curious what a setup like this would cost you can see the prices for most of the parts on the website. Figure another $1500 or so for install and tuning.
 

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that's pretty impressive. good work guys.

..and 1500 dollars for all that motor work plus tuning is a steal.
 

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2,380 Posts
:eek: Nice job.
 

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Awesome, I kick myself for not getting a replacement long block from you guys when my motor blew almost three years ago. I bet that thing feels really nice in car!
 

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what kind of dyno did you use? dynopack, dynojet,mustang dyno?
(standard notes apply- torque is on a different scale so the lines do not cross at 5250 and the torque curve looks lumpy despite being between 130 and 153 wtq from 3000-7400 which is remarkably flat. Measured on a Dynapack dyno which reads similarly to a Dynojet. Stock 1ZZ's typically register 117-118whp or so on this unit)
.
 

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Thats good.. but a turbo is just so much more effective for the money.. mwr your 1zz turbo kit goes for 5000 and makes 250-260 hp for a stock motor right.?
 

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12+ years daily driver
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hahah he said figure another 1500. so the parts plus 1500
thx, i understand that part though :gap:. my comment was that $1500 for tuning and install of all this stuff is a great deal. All my research down here for a buildup like that had a much higher price tag.
 
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