[smufguy]

This would be awesome. But I have the 2008 model, So no Ktuner or ecu tuning is available for my car.

last time I spoke with a rep from K-Tuner, they did say they support the '06-'08 Model Years - though it is not listed on their website. You should reach out and verify for the '08.

 

[smufguy]

Wonder how much the already bad gas mileage would change (decrease)?

Magnuson advertises that the bypass efficiency, for the 1900) is high and only uses 1/3 hp at 60mph. Not sure what the Whipple is advertised as.
Magnuson and Harrop use the Eaton TVS1900 blower units.

 

[smufguy]

After thinking quite a bit and assessing all avenues, I decided to build the motor, learn more through the process, and go with a power adder while I was at it. Sourcing up the parts as I do my homework has been a year long process. I bought a salvage truck couple of years for spare parts and engine and started accumulating certain replacement parts as they come up for discounted sale. While I was in that process, one of the owners of the company reached out and we got to chat - as we were chatting, he disclosed to me a deal he was nice enough to offer for some of his R&D/prototype parts. We shook hands and learned a few things along the way about the Z-series blocks. End of the day, I added few things to my collection.

None of these will be on the vehicle for another year or so as there are many things to still get done. Engine still needs to be built, transmission and torque convertor needs to be looked further into (had great conversations with a member on AcuraZine who has been running a 500hp+ on the auto trans on a 3G TL for over 6 years), fueling system sorted out, oiling system, electric power steering pump, electrical system, exhaust system, etc need to be sorted out. Then comes the tuning, which is the easiest due to good solutions and decent tuners around the area.

Point of this post is to provide some hope and encouragement to folks who think about things like this - do not stop dreaming, be realistic, plan well, take your time and research, and you will end up with something you enjoy and proud of. In that process, you end up learning so much that you pass on to others.

 

[smufguy]

Fuel Injectors are one of the items in the fuel system that needs to be sorted out. Depending on the Fuel pressure, fuel type, and target engine output, the injector size will change.

The Turbo RDX runs a Denso fuel injector, I believe the 297500-0880 and the Ridgeline is a Keihin one
The Ridgeline is a 270cc while the RDX is a 420cc at 43.5psi for fuel pressure. Physically, they look the same, but I am not familiar with power requirements on either of the injectors. Also, from what I understand, injector duty cycle is very important and pushing them upwards of 80% is not advised.

As you can tell, I still have quite a bit to learn.

EDIT: Looking at HeelToe, there are quite a bit of options for injectors through FIC (Fuel Injector Clinic) - from 365cc to 2150cc. Interestingly, it does show the RDX injectors being compatible. Using FIC's fuel injector calculator, a 500hp J-series, would require a 601cc injector. FuelTech calculates is at 656cc. This is based on a 80% duty cycle and using regular gasoline (non-ethanol). With the stock RDX injectors, you can safely push 320/350hp at the crank with 80% duty cycle.

If you are running an M90 and no intercooler, you do need to keep an eye on the intake air temp as the one you get off the MAF sensor will be lying to what is actually going inside the plenum. I believe there is a video of a guy (I may have posted it somewhere on the forum) and his setup on the Pilot, made marginal power. The intake air temp is the killer when it comes to power production and one of many reasons I did not like the non-intercooled M90 setup. The kit I will be using, also has a non-IC option and with that setup, it made 130hp+ over stock on a 3G TL.