Project Supra Part 5: Thermal Coating, Wrapping, and Engine Assembly
by Pablo Mazlumian
A notable tradeoff to turbocharged power is the potential for more heat in the engine bay, leading to less-than-optimal power and increased turbo lag. Find out how we minimize these fun-killers. Our cylinder head and built short block also come together, and we show off the variety of MKC-tuned boosted cars.
Project Supra Mark IV, Part 4: Turbo Components
by Pablo Mazlumian
Some of the most exciting products to feature are turbo components. We choose some of the best turbo, wastegates, intake manifold and exhaust manifold components in the industry in pursuit of a streetable 800 whp with our 2JZ.
Project Supra (Extreme Engine Tech): Part 3 - The Cylinder Head
By Pablo Mazlumian
EXTREME ENGINE TECH: 2JZ-GTE Engine Build; Part 2 - Modified Oil Pump and Crank Damping
While we await our cool turbo components, we tackle the oil pump and crank damper after recently discovering that our previous motor could have seized catastrophically!
Extreme Engine Tech: 2JZ-GTE; Part 1 - More Strength, Less Weight
Known as one of the badest blocks that ever left an assembly line, the 2JZ-GTE found in the MKIV Supra is known for its ability to handle horsepower. Unable to contain ourselves, we build one, and make it even stronger. We start by discussing our piston and rod selection. The goal? A streetable 800 whp, daily-driven!
Rotary Radness, Mazdatrix's 13B REW/MSP Hybrid!
By Mike Kojima
So far we have not focused too much attention on the Mazda Rotary engine on the pages of MotoIQ. This is not because we haven't wanted to but because no one on our staff has much expertise on the engine except for Eric and he has been pretty busy lately doing other things in the world of internal combustion besides messing on rotaries.
Extreme Engine Tech: Inside the Cosworth VQ35DE Rev-Up! (Part 1)
by Mike Kojima
No, this is not the engine for the Team America BNR32 GT-R Time Attack killer. That engine tech article will be written hopefully by Eric in a few weeks. This is an engine build for a future MotoIQ 350Z project that we will launch sometime late this year.
Turbo Tech: Compressor and Turbine Map Details
By Khiem Dinh
We have previously covered compressor wheel technology and also how compressor and turbine maps are generated. Now we are going to dive a little deeper into the details of the compressor map and all-mysterious turbine map. Furthermore, we are going to see how compressor wheel and turbine housing A/R changes affect turbine flow and efficiency.
Building the Long Rod Nissan SR20VE Engine
By Mike Kojima and Chuck Johnson
We last left off our SR20VE engine repair job with Port flow Design fixing our head. Read about that here! Since our broken valve chopped up one of our pistons, we decided to go through the engine's bottom end at this time. Since we have been editorially discussing the effects of running a longer connecting rod at MotoIQ lately, what a better place to try a longer connecting rod than our race motor! Check out Khiem Dinh’s excellent article on the subject here!
By Jim Wolf
Oh my God, what a mess this has become! As race engine development moves forward, aftermarket fuel injectors seem to be moving sideways. About ten years back a trend started to modify stock injectors for higher flow rates. This was done by either drilling out the spray orifices or removing the spray plate all together! While some of the companies attempting this seemed to be making a serious effort, actual flow testing in many cases would indicate otherwise. No doubt someone will eventually figure out how to do this accurately, but in the mean time, they at least need to be willing to do actual flow testing, static and dynamic on each injector (no duplicated flow sheets please). Add this twist to the already diverse methods used to state injector flow values and you have a bit of a mess to sort out.
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