STILLEN Exhaust & Gen 3 Intake Dynos - 18hp Each!

Denny McLain · 02-17-2009, 11:41 AM

Fresh from dyno.

Three baseline runs were done to find the sweat spot for testing temp and a 4th run done removing the air filters to see the effects. All runs are SAE corrected utilizing a dynojet dyno.

The first run was with an oil temp of 180 (usually do water temp, but being none are available) which yielded 277/231 torque. After five minutes a second pull was done with an oil temp just under 200 degrees which yielded the best run of the three of 275/240. (fyi 282/246 std) Even though peak is slightly less, the overall power was significantly more. A third run was done with an oil temp of 220 with power going down to 273/236 indicating the car likes oil temps just under 200 degrees. Really wish I could do better water temp readings as this is usually what I go by in establishing a baseline for consistency.

The car was allowed to cool down to 195 oil temps (best run temp), the air filters removed and redynoed. The results were 274/239 which tells me I may have pissed away 90 bucks buying the Corsworth high flow filters making me even more skeptical of an 18 hp gain in just intake.

Air/fuel ratio are pretty rich for a N/A setup mostly in the mid to high 11 to 1 range which tells me one of two things: These care either like it rich, or the factory is sandbagging. Tuning software should answer that question.

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Also for poops n grins we pulled dyno sheet up of a 350Z. No offense to the 350 people, woe....glad I bought a 370.

Image hosting, free photo sharing & video sharing at Photobucket

If anyone is slicker (probably a ton) than me at embedding images into posts...I send the scanned file and you can add.

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02-17-2009, 11:41 AM	#11 (permalink)
Denny McLain Enthusiast Member Join Date: Feb 2009 Location: Double Oak Tx Posts: 255 Drives: 370Z, 96CE hotrod Rep Power: 18	Fresh from dyno. Three baseline runs were done to find the sweat spot for testing temp and a 4th run done removing the air filters to see the effects. All runs are SAE corrected utilizing a dynojet dyno. The first run was with an oil temp of 180 (usually do water temp, but being none are available) which yielded 277/231 torque. After five minutes a second pull was done with an oil temp just under 200 degrees which yielded the best run of the three of 275/240. (fyi 282/246 std) Even though peak is slightly less, the overall power was significantly more. A third run was done with an oil temp of 220 with power going down to 273/236 indicating the car likes oil temps just under 200 degrees. Really wish I could do better water temp readings as this is usually what I go by in establishing a baseline for consistency. The car was allowed to cool down to 195 oil temps (best run temp), the air filters removed and redynoed. The results were 274/239 which tells me I may have pissed away 90 bucks buying the Corsworth high flow filters making me even more skeptical of an 18 hp gain in just intake. Air/fuel ratio are pretty rich for a N/A setup mostly in the mid to high 11 to 1 range which tells me one of two things: These care either like it rich, or the factory is sandbagging. Tuning software should answer that question. Image hosting, free photo sharing & video sharing at Photobucket Also for poops n grins we pulled dyno sheet up of a 350Z. No offense to the 350 people, woe....glad I bought a 370. Image hosting, free photo sharing & video sharing at Photobucket If anyone is slicker (probably a ton) than me at embedding images into posts...I send the scanned file and you can add.