Khiem Dinh, Author at MotoIQ

I installed the water injection setup to help with knock mitigation and reduce the intake air temperature a bit. I went with the new wheel and tire package to increase…

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Cayman T

Project 718 Cayman T: Part 16 – Antigravity Battery Weight Reduction, More Grip, and More Acceleration

Khiem Dinh

I have done a ton of modifications to the car so far, but none have been targeted at reducing weight. The AP Racing brakes setup should have shaved some weight,…

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Project 718 Cayman T: Part 15 – Water Injection

Khiem Dinh

Ever since I had my 2005 Evo, I’ve wanted to try water injection. Kojima tested it out on his Evo IX back in the day. For the turbocharged 718 Cayman,…

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Cayman T

Project 718 Cayman T: Part 14 – E-Motion Engineering Strut Tower Reinforcement Brace

Khiem Dinh

Strut tower failures are a known issue on the 991 generations GT3s and the same-era GT4s. They typically occur from a sharp impact such as curbing at the track. I’m…

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Cayman T

Project 718 Cayman T: Part 13- How to Install a Numeric Shifter

Khiem Dinh

As I mentioned in Part 1, the factory shifter in the 718 Cayman T is not as good as the factory Honda S2000 shifter; I rated the GT4 shifter, which…

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Nerd’s Eye View: LA Auto Show 2024

Khiem Dinh

So, the LA Auto Show was about five months ago, but better late than never. Cars are becoming more defined by their software than powertrains, but there are still some…

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Cayman T

Project 718 Cayman T: Part 12 – E-Motion Suspension Components and Track Update

Khiem Dinh

The stock suspension of the 718 Cayman does not have enough adjustment range for serious road course track work. You can’t get enough negative camber in order to prevent destroying…

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Cayman T

Project 718 Cayman T: Part 11 – DSC Sport V3 Controller

Khiem Dinh

The Porsche SPASM suspension comes with electronically adjustable dampers. From the factory, you get Normal and Sport modes with Sport mode being much stiffer, of course. But why settle for…

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Cayman T

Project 718 Cayman T: Part 10 – RaggDoll Motorsport RENNEN Turbo Upgrade and Compressor Inlet

Khiem Dinh

The 4-banger turbo 718s haven’t gotten much love from the aftermarket because they are just the lowly 4-cylinder engines instead of the all-mighty 6-cylinders in the Porsche lineup. Those of…

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Tech

Porsche’s T-Hybrid System: Formula 1 Technology for the Street

Khiem Dinh

All images from Porsche. “Hybrid is the devil!” Waterboy voice. “Not so fast my friends!” Lee Corso voice. I think most people associate the concept of a hybrid car with…

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Project 718 Cayman T: Part 9 – GT4 Undertray Vanes and Water Pump Mod

Khiem Dinh

It was time to dig into the low-cost OEM+ upgrade goody bag again. Aerodynamics has become increasingly prevalent on cars straight off the showroom floor. Everyone can see the front…

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Project 718 Cayman T: Part 8 – BMC Air Filter

Khiem Dinh

I only have a bit over 3000 miles on the car, but I had some free time, so I figured I would go ahead and install the BMC air filter…

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Project 718 Cayman T: Part 7 – COBB Accessport

Khiem Dinh

The awesome thing about turbo cars is the ability to easily adjust the engine calibration for more power. Importantly for California, COBB provides off-the-shelf maps that have CARB EO numbers.…

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Project 718 Cayman T: Part 6 – Third Radiator, Center Grill, and GT3 Vent Installation

Khiem Dinh

I did say I was going to tackle the suspension next in order to optimize tire usage, but life threw me a bit of a curveball. So, I decided to…

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Cayman T

Project 718 Cayman T: Part 5 – AP Racing by Essex Big Brake Kits

Khiem Dinh

The stock 718 Cayman T brakes with Brembo calipers are the best stock brakes I’ve felt on any stock car that I have driven. However, they are not sized big…

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Project 718 Cayman T: Part 4 – Track Day Baselines

Khiem Dinh

With 1400 miles on the car, the engine exercised through its full load and rpm ranges, and two oil changes in, I thought it was time to do some track…

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Cayman T

Project 718 Cayman T: Part 3 – Custom X-Pipe and Liftbars

Khiem Dinh

The 4-cylinder turbo engines in the 718 Cayman and Boxster are not that high strung, only pushing out between 300hp-365hp. So, Porsche did not have to optimize the exhaust tip…

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Tech

Nerd’s Eye View: LA Auto Show 2023

Khiem Dinh

It’s been a minute since I last went to the LA Auto Show and wrote about it. COVID shut the show down for a bit and I was too busy…

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Project 718 Cayman T: Part 2 – Oil Change Mod, GT4 Scoop Install, and Increased Octane

Khiem Dinh

The 718 Cayman T is not the easiest car to do an oil change on. I did one modification to make doing an oil change quicker at least. The first…

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Cayman T

Project Cayman T: Part 1 – Intro and Must-Do Mods

Khiem Dinh

For all of those wondering why I sold Project S2000 shortly after I FINALLY got the turbo installed and running well, this is it: a 2023 718 Cayman T. The…

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S2000 (AP2)

Project S2000: Part 36 – The Finale

Khiem Dinh

-ed note: I have always given Khiem crap about his overly complicated turbo system and lack of peak power for all the work he did but, I had never driven…

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Project S2000: Part 35 –Dyno Tuning, Finding Problems, Retuning, and Math

Khiem Dinh

If you have been following the progress of Project AP2 S2000, to prove my motor and turbo combination, I drove the car around for a while avoiding boost to test…

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Project S2000: Part 34 – Fuel System Install and Dyno Tuning for 500hp

Khiem Dinh

The last major part of the puzzle before getting the car tuned was installing the fuel system components. Smaller bits included wiring in the Hondata boost solenoid and 4-bar MAP…

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S2000 (AP2)

Project S2000: Part 33 – Turbo Installed (Not Yet Boosting) and Sorting Things Out

Khiem Dinh

I have been driving the car around with the turbo installed to help troubleshoot all the small issues. That, and I just like driving the car because of all the…

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Project S2000: Part 32 – Fitting and Installing Turbo System Parts

Khiem Dinh

Firstly, please excuse the phone pics. I brought my camera but forgot my memory card in my laptop. Oops. So anyway, it’s been a super slow burn on this project…

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Project S2000: Part 31 – Oil and Fuel System Updates

Khiem Dinh

To make my low-mount turbo setup work, I would need to relocate the oil filter to make space for the turbo compressor inlet pipe. Of course, that means mounting the…

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Tech

Nerd’s Eye View: Mercedes AMG M139 Engine with E-turbo and Liquid Immersion Battery Cooling

Khiem Dinh

When we last looked at the Mercedes AMG M139 engine, it was the highest output 2.0L engine to go into production at 416hp. Increasing horsepower out of a small displacement…

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Project S2000: Part 30 – Cooling Upgrades and Packaging Improvements

Khiem Dinh

In deciding to go with an air-to-water intercooler setup, there are extra component and packaging challenges compared to a typical air-to-air setup. The S2000 already has a tight engine bay…

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Sportbike Easy Upgrades: Accelerating Faster and Decelerating Better

Khiem Dinh

Motorcycles are relatively basic machines which makes them easy to upgrade for performance. I’m not doing anything nearly as cool as Rob with his Ducati 998, but just a couple…

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Project S2000: Part 29 – Investment Cast 347SS Turbo Manifold

Khiem Dinh

It’s been a long journey, but the most important piece of the Project S2000 AP2 turbo build is finally here. The original plan was to 3d print from Inconel 625…

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Project S2000: Part 28 – Test Fitting Cooling Components For The Air-To-Water Intercooler

Khiem Dinh

I had some concepts in my head on how the parts for the air-to-water intercooler setup would fit. As is often the case, things don’t quite work out the way…

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Project S2000: Part 27 – Building the F22c for Turbo Boost and Manifold Test Fit

Khiem Dinh

The stock block F20c/F22c is well-known for being very stout. Many S2000s have been turbocharged to over 600whp without ever being opened up. However, our base target is 500 crank…