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Search took 0.01 seconds. Search: Posts Made By: twj347
Forum: Motorcycles / Scooters 06-21-2022, 09:56 PM
Replies: 3
Views: 2,907
Posted By twj347
Yeah, that's my primary concern. I'm going to...

Yeah, that's my primary concern. I'm going to reserve the leaner settings for cruising. If the bike runs well and fuel economy is significantly better, I might install a Power Commander so I can...
Forum: Motorcycles / Scooters 06-21-2022, 01:31 PM
Replies: 3
Views: 2,907
Posted By twj347
Homemade Air/Fuel and Ignition Timing Controller for SV650

I've been wanting to experiment with leaner fuelling on my 2008 Suzuki SV650S. I've had good success with a lean burn tune on my Subaru, running as lean as 17.5:1 AFRs with more advanced ignition...
Forum: Motorcycles / Scooters 05-26-2022, 08:44 PM
Replies: 8
Views: 1,375
Posted By twj347
Whenever I clean and lube my chain, I do a "spin...

Whenever I clean and lube my chain, I do a "spin test" before and after, where I give the wheel a good spin by hand to see how many rotations it will do.

With a dirty chain that hasn't been...
Forum: EcoModding Central 10-20-2018, 10:30 AM
Replies: 9
Views: 1,224
Posted By twj347
You really want to know the relationship between...

You really want to know the relationship between IAT and intake temperature in your ECU before doing this. My car has IAT vs Ignition Timing tables in the ECU, but the OEM tables only retard timing...
Forum: EcoModding Central 07-04-2018, 11:47 AM
Replies: 8
Views: 5,344
Posted By twj347
I tuned my engine for lower octane fuel

The DIT engine in my Subaru is designed for 91 octane fuel. I figured I would try to save some money on fuel by making a tune for 87 octane. The price difference between 87 and 91 octane fuel is...
Forum: Off-Topic Tech 03-17-2018, 03:37 PM
Replies: 31
Views: 4,615
Posted By twj347
Have you considered HIR lamps (Halogen Infrared)?...

Have you considered HIR lamps (Halogen Infrared)? They're a relatively new type of halogen that produce about 50% more light per watt than regular halogens, and they have a good hour rating. I used...
Forum: General Efficiency Discussion 02-11-2018, 07:03 PM
Replies: 58
Views: 7,081
Posted By twj347
The car was put into a slow rotation to heat up...

The car was put into a slow rotation to heat up both sides of the car evenly (and maybe more importantly the camera equipment).



A parachute would weigh less than the extra fuel, but doing...
Forum: Success Stories 01-31-2018, 11:52 AM
Replies: 16
Views: 6,019
Posted By twj347
Lean Burn Success

I've been tuning my 2015 Subaru WRX to run in lean burn and I finally got around to doing some proper A-B-A testing. This car has a direct-injection turbo engine that is pretty knock-limited at...
Forum: Off-Topic Tech 12-12-2017, 03:31 PM
Replies: 17
Views: 2,915
Posted By twj347
Are your winter tires new or did you use them...

Are your winter tires new or did you use them last winter also? They could have significantly higher rolling resistance than your summer tires. That, combined with cooler temperatures could explain...
Forum: Aerodynamics 10-15-2017, 06:18 PM
Replies: 18
Views: 2,373
Posted By twj347
Agreed. Also, I'm not sure how the suspension...

Agreed. Also, I'm not sure how the suspension geometry and adjustment ability is on those cars, but usually lowering springs will increase negative camber. If you don't have any camber adjustment...
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