Rdevelopments
10-02-2014, 09:00 AM
Last saturday we finally where able to test the intake system on the Dyno. We ended the day with Mixed feelings… Did we make more hp / torque, yes we sure did (8,5 hp over a stock airbox with taitec (similar to downforce) scoop).. But the intake is far from ready! Background, we wanted a back to back comparison of various airbox types / scoop setups. We did 3 runs with every setup to make sure there where no “lucky runs”
The results:
1st run: 273 bhp (flywheel), Setup: Gruppe m air intake with stock scoop.
2nd run: 279 bhp (flywheel), Setup: Stock airbox, stock scoop.
3rd run: 281 bhp (flywheel), Setup: Stock airbox, big scoop.
4th run: 269 bhp (flywheel), Setup: R-dev intake, big scoop (This is the point where i was shockend, dissapointed etc etc. But hey thats what development is about. The only restriction we could think of was the filter.. Conclusion; remove filter.)
5th run: 287,5 bhp (flywheel), R-dev intake (without foam filter), big scoop..
We also tried putting extra fan’s around the scoop bellmouth, this had 0,0000 bhp effect…
Conclusion of the day:
1. The Honda engineers have done a pretty amazing job…
2. Every Company that sells the large scoop and claim 6 whp are talking “****”…
3. The design we came up with “works” but only without a filter element.. So really it’s a useless result.. But we are going to work on a different filter setup.
I can hear All Nsx Owners thinking, but i can feel the differance when i mount my “big scoop” And k&n / uni filter.. This shows that “sound” makes a bigger differance then bhp’s .. Why can you be Sure the results are real and unbiased.. Well quite simple, our “own” airbox design gave a Crappy result And i’m not ashamed to honestly tell it on the web.. (I’ve invested € 3k+ in this project so yes i’m dissapointed)
Whats next? Back to the drawing board! To be continued!
Before i forget, special thanks to Gerard And Dimer van Santen and Theo Berkvens for the help! And ofcourse Pieter Oonincx at www.dp-engineering.nl (http://www.dp-engineering.nl/) for the use of his Dyno and patience between the runs when we where changing the setups.
http://r-developments.com/wp-content/uploads/2014/02/1661222_659971397393443_15477698_n.jpg
http://r-developments.com/wp-content/uploads/2014/02/484878_10151895003666434_1195965435_n.jpg
The results:
1st run: 273 bhp (flywheel), Setup: Gruppe m air intake with stock scoop.
2nd run: 279 bhp (flywheel), Setup: Stock airbox, stock scoop.
3rd run: 281 bhp (flywheel), Setup: Stock airbox, big scoop.
4th run: 269 bhp (flywheel), Setup: R-dev intake, big scoop (This is the point where i was shockend, dissapointed etc etc. But hey thats what development is about. The only restriction we could think of was the filter.. Conclusion; remove filter.)
5th run: 287,5 bhp (flywheel), R-dev intake (without foam filter), big scoop..
We also tried putting extra fan’s around the scoop bellmouth, this had 0,0000 bhp effect…
Conclusion of the day:
1. The Honda engineers have done a pretty amazing job…
2. Every Company that sells the large scoop and claim 6 whp are talking “****”…
3. The design we came up with “works” but only without a filter element.. So really it’s a useless result.. But we are going to work on a different filter setup.
I can hear All Nsx Owners thinking, but i can feel the differance when i mount my “big scoop” And k&n / uni filter.. This shows that “sound” makes a bigger differance then bhp’s .. Why can you be Sure the results are real and unbiased.. Well quite simple, our “own” airbox design gave a Crappy result And i’m not ashamed to honestly tell it on the web.. (I’ve invested € 3k+ in this project so yes i’m dissapointed)
Whats next? Back to the drawing board! To be continued!
Before i forget, special thanks to Gerard And Dimer van Santen and Theo Berkvens for the help! And ofcourse Pieter Oonincx at www.dp-engineering.nl (http://www.dp-engineering.nl/) for the use of his Dyno and patience between the runs when we where changing the setups.
http://r-developments.com/wp-content/uploads/2014/02/1661222_659971397393443_15477698_n.jpg
http://r-developments.com/wp-content/uploads/2014/02/484878_10151895003666434_1195965435_n.jpg