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Ran a dyno yesterday... Removed the aftermarket air filter as it ran too lean... So completely stock except for the HKS Legamax exhaust.....
Will post official graphs when i find time to scan it in..... It did 160.1HP @ Wheels, 192.7HP @ Flywheel on a Dyno Dynamics "Possum Bourne Edition" dyno.... I am not too happy considering there was a JDM FE3S that did 230 @ Flywheel a couple of days ago... K |
that must be an auto
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Originally Posted by Shane.Trammell' post='778896' date='Nov 17 2005, 02:25 AM
that must be an auto 6-speed manual :( |
WTF? I expected more than that https://www.nopistons.com/forums/pub...1047683561.gif
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Ran lean? The reason why power is so down in our RX-8s is because it runs too rich after 6000 rpm. It runs below 11:1 AFR at that point. That may be fine for a boosted motor, but not on our N/A setup.
I dynoed 146 HP on Mustang Dyno stock. With a preloaded e-manage map, I ran 156 HP. Later on, with RB intake, hot spark plugs, new ECU flash, and street-tuned my own map, I managed to pull 188 HP. I averaged top end AFR to 13.5:1. We learned from the star mazda series cars that their Renesis targeted 13.5:1 AFR (.92 - .93 lambda) at the open-loop area. Go to rx8club.com and look up the dynos everone has been pulilng. ...or you could always go Turbo https://www.nopistons.com/forums/pub...#>/biggrin.png |
Originally Posted by Xyntax' post='779268' date='Nov 17 2005, 11:30 AM
LoL ****, do something. 146hp https://www.nopistons.com/forums/pub...1047683664.gif |
Yep, funny **** was, everyone else's RX-8 had around 145 - 150 WHP that same day. But that's on a Mustang Dyno, which gives lower numbers than the common dynojet or others.
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Originally Posted by Xyntax' post='779268' date='Nov 18 2005, 03:30 AM
Ran lean? The reason why power is so down in our RX-8s is because it runs too rich after 6000 rpm. It runs below 11:1 AFR at that point. That may be fine for a boosted motor, but not on our N/A setup. I dynoed 146 HP on Mustang Dyno stock. With a preloaded e-manage map, I ran 156 HP. Later on, with RB intake, hot spark plugs, new ECU flash, and street-tuned my own map, I managed to pull 188 HP. I averaged top end AFR to 13.5:1. We learned from the star mazda series cars that their Renesis targeted 13.5:1 AFR (.92 - .93 lambda) at the open-loop area. Go to rx8club.com and look up the dynos everone has been pulilng. ...or you could always go Turbo https://www.nopistons.com/forums/pub...#>/biggrin.png Umm.. with the air filter.. It was an apex'i power intake with a 4" pipe and a round weld for the MAP.... It caused it to run ard 16-17...... I was told that the guy who did my piping for the air filter forgot a piece of netting which was on the stock oil filter When replaced with stock, it was ard 11.1..... Anyways, here are the dyno charts.. |
That netting is important to stabilize the airflow going to your MAF (not MAP). Our intake is MAF-based. It was probably more than the lack of net your guy made a mistake on. Don't fiddle with stupid intakes that will only let your engine suck in hot air. I suggest you go to rx8club.com for some good info on what mods work and what doesn't. NOpistons is great for tech stuff, but they don't have much RX-8 tech here; only RX-7s.
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Originally Posted by Xyntax' post='779651' date='Nov 19 2005, 02:20 AM
That netting is important to stabilize the airflow going to your MAF (not MAP). Our intake is MAF-based. It was probably more than the lack of net your guy made a mistake on. Don't fiddle with stupid intakes that will only let your engine suck in hot air. I suggest you go to rx8club.com for some good info on what mods work and what doesn't. NOpistons is great for tech stuff, but they don't have much RX-8 tech here; only RX-7s. Since u've mentioned rx8club on ur previous post, i've already been over to check it out.... I've found a wealth of info on that site... Thanks for the recommendation... I was pissed off when i found out about the air filter lol.... My car's going to a reputable shop now! I am not putting the air filter back on, as i am going boosted. Greddy kit arrive here in 2-3 weeks from japan... At the same time, an HKS SQV B-off, Profec-B II and some defi guages are going in.. So looking forward to it.... |
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