Notices
RX-8 Discussion General discussion about the RX-8 that doesn't fit in one of the specialty forums.

Got my 8 dyno'd... Does this seem right????

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 04-08-2009, 06:09 PM
  #26  
#50
 
bse50's Avatar
 
Join Date: Nov 2007
Location: Caput Mundi
Posts: 7,521
Received 10 Likes on 10 Posts
lightweight 18" wheels, cat delete and another intake like the AEM or the stock one. Add fresh coils and your set up to go. Then a good tune!
Old 04-08-2009, 06:10 PM
  #27  
Hit & Run Magnet
iTrader: (3)
 
kersh4w's Avatar
 
Join Date: May 2007
Location: DC Area
Posts: 6,690
Likes: 0
Received 3 Likes on 3 Posts
180whp is exactly where this car is.

but you dont seem to know much so i'll give you another tip.

the renesis engine has about 215hp at the flywheel. which is why we see 180whp, it does NOT have 238hp at the flywheel. the problem is that mazda can report up to 6% change in horsepower with SAE, allowing for manufacturing differences. this is why they changed the horsepower to 232. 232*6%=14. 232-14=218. which is still high, but it is more plausible.

mods to add power
catless 3" exhaust system
cobb access port
header
intake

mods to free up existing horsepower
lightweight rims
lightweight flywheel
lightweight everything else

Last edited by kersh4w; 04-08-2009 at 06:12 PM.
Old 04-08-2009, 06:14 PM
  #28  
Boosted Kiwi
iTrader: (2)
 
Brettus's Avatar
 
Join Date: Apr 2006
Location: Y-cat-o NZ
Posts: 20,525
Received 1,492 Likes on 840 Posts
Originally Posted by kersh4w

mods to add power
catless 3" exhaust system
cobb access port
header
intake

mods to free up existing horsepower
lightweight rims
lightweight flywheel
lightweight everything else
mod to make car fast
FI

Old 04-08-2009, 06:14 PM
  #29  
Hit & Run Magnet
iTrader: (3)
 
kersh4w's Avatar
 
Join Date: May 2007
Location: DC Area
Posts: 6,690
Likes: 0
Received 3 Likes on 3 Posts
yeah, definitely.

nitrous too.
Old 04-08-2009, 10:44 PM
  #30  
Registered
 
shazy's Avatar
 
Join Date: Oct 2008
Location: Montreal,QC
Posts: 2,256
Likes: 0
Received 0 Likes on 0 Posts
Well I bet you would've gotten much closer to 190whp if the temps werent at 90F! if it was more towards 60, I guess you would've gotten like 186-192whp. At temps that high, the Ram air intake is sucking all the hot air and feeding it to the engine... which is pretty damn pointless.
Old 04-09-2009, 02:03 PM
  #31  
Hit & Run Magnet
iTrader: (3)
 
kersh4w's Avatar
 
Join Date: May 2007
Location: DC Area
Posts: 6,690
Likes: 0
Received 3 Likes on 3 Posts
i doubt it.
Old 04-09-2009, 02:18 PM
  #32  
Registered User
iTrader: (2)
 
jones75254's Avatar
 
Join Date: Oct 2006
Location: Ohio
Posts: 1,396
Likes: 0
Received 0 Likes on 0 Posts
Dyno nothin but a #. Unless this is just a baseline to get a before and after for FI, i wouldnt worry bout it either way. I would be more interested in healthy compression #'s rather than a high dyno #. And who gives a rats *** about 10 hp either way just becuase of ambient temps or calibration? Its still only 10hp that really doesnt mean **** in the grand scheme of things.
Old 04-09-2009, 03:12 PM
  #33  
Registered User
Thread Starter
 
RX876's Avatar
 
Join Date: Apr 2008
Location: Pembroke Pines, Florida
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Im currently trying to source a new set of coils and wires, and looking into a midpipe...... hopefully, i will get closer to 200HP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Old 04-09-2009, 03:23 PM
  #34  
Registered
 
devildog1679's Avatar
 
Join Date: Sep 2006
Location: Madison, WI
Posts: 1,202
Likes: 0
Received 0 Likes on 0 Posts
Your #'s are about right. I went to a dyno meet last spring and half the people went home crying The only ones happy were the FI guys or the AT's. Most who had mods posted similar #'s. With my mods I only made 192.
Old 04-09-2009, 05:01 PM
  #35  
Registered User
Thread Starter
 
RX876's Avatar
 
Join Date: Apr 2008
Location: Pembroke Pines, Florida
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by devildog1679
Your #'s are about right. I went to a dyno meet last spring and half the people went home crying The only ones happy were the FI guys or the AT's. Most who had mods posted similar #'s. With my mods I only made 192.
The only thing you have different than me is the flywheel, supercat, and accessport tune.... if i got those pieces, on a good day, with the new coils and wires, i would think i could get more than 192.....
Old 04-09-2009, 05:15 PM
  #36  
Administrator
iTrader: (7)
 
Jedi54's Avatar
 
Join Date: Mar 2004
Location: The Dark Side
Posts: 22,396
Received 2,638 Likes on 1,888 Posts
RX: ever de-carb'd the engine?
Old 04-10-2009, 07:59 AM
  #37  
Registered User
Thread Starter
 
RX876's Avatar
 
Join Date: Apr 2008
Location: Pembroke Pines, Florida
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Jedi54
RX: ever de-carb'd the engine?
No i wanted to do it but i was afraid it would mess something up. What is the proper product to buy and from where?
Old 04-10-2009, 08:56 AM
  #38  
Rotor User
 
fastlaneracing's Avatar
 
Join Date: Nov 2007
Location: Sweden
Posts: 838
Likes: 0
Received 0 Likes on 0 Posts
Welcome to the harsh reality.

Mine duno'ed 200whp @ rototest with a hell lot of more mods.

But its addictive and i'll hope I have improved it a bit more now.
Old 04-10-2009, 10:45 AM
  #39  
Administrator
iTrader: (7)
 
Jedi54's Avatar
 
Join Date: Mar 2004
Location: The Dark Side
Posts: 22,396
Received 2,638 Likes on 1,888 Posts
rx876: look for nycgps's DIY on it.
- advanced search
- seach by user: NYCGPS
- search for threads started by
Old 04-10-2009, 10:51 AM
  #40  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Hmm ?
Old 04-10-2009, 10:52 AM
  #41  
Registered
 
shazy's Avatar
 
Join Date: Oct 2008
Location: Montreal,QC
Posts: 2,256
Likes: 0
Received 0 Likes on 0 Posts
Soon, I'm going to go to a dyno to make a baseline run... then I will mod the crap out of it.
But my car is running really good, but is making a ticking noise. I think it's cause of the loose spark plug wires.
Old 04-10-2009, 10:52 AM
  #42  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Originally Posted by Brettus
mod to make car fast
FI

Nope

Mods needed : Cash ---- Buy another car.
Old 04-10-2009, 10:52 AM
  #43  
Registered
 
shazy's Avatar
 
Join Date: Oct 2008
Location: Montreal,QC
Posts: 2,256
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by nycgps
Hmm ?

congrats on your 10 500 post
Old 04-10-2009, 11:53 AM
  #44  
Registered
 
Design1stCode2nd's Avatar
 
Join Date: Jun 2005
Posts: 946
Likes: 0
Received 0 Likes on 0 Posts
Its why I never modded mine, $1,000's for 15-20hp just wasn't worth it to me. Plus there isn't much aftermarket for the 8 when compared to it's competitors. At least you only have about 15% drivetrain loss compared to my 25%.

I'd say get an exhaust for better sound, CAI, acessport with a pro-tune, lighter flywheel and wheels if you really want to do it.

Just depends on what you want out of the car. If you want fast you bought the wrong car.
Old 04-10-2009, 12:11 PM
  #45  
Registered User
Thread Starter
 
RX876's Avatar
 
Join Date: Apr 2008
Location: Pembroke Pines, Florida
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Design1stCode2nd
Its why I never modded mine, $1,000's for 15-20hp just wasn't worth it to me. Plus there isn't much aftermarket for the 8 when compared to it's competitors. At least you only have about 15% drivetrain loss compared to my 25%.

I'd say get an exhaust for better sound, CAI, acessport with a pro-tune, lighter flywheel and wheels if you really want to do it.

Just depends on what you want out of the car. If you want fast you bought the wrong car.
Ill rather live with my heavy wheels..... Got an Intake and Exhaust already... Would really like to do the flywheel but im pretty sure installation is going to be crazy expensive.... really want the new coils and wires (i think it might get me a better ride quality, mpg, hp, and maybe correct my rough idle when the car warms up.... might really be worth it)
Old 04-10-2009, 02:45 PM
  #46  
Registered
 
RufusVonStorm's Avatar
 
Join Date: Nov 2006
Location: Fullerton, CA
Posts: 411
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by RX876
Im currently trying to source a new set of coils and wires, and looking into a midpipe...... hopefully, i will get closer to 200HP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I think you're on the right track. I bet coil packs, wires, and especially the midpipe will make a big difference.

I was at 181whp with mazsport coils, wires, new plugs, and K&N drop-in.

-Bill
Old 04-10-2009, 02:50 PM
  #47  
Registered
 
RufusVonStorm's Avatar
 
Join Date: Nov 2006
Location: Fullerton, CA
Posts: 411
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by bse50
lightweight 18" wheels, cat delete and another intake like the AEM or the stock one. Add fresh coils and your set up to go. Then a good tune!
Oh, and yes I bet you would have done a little better without the big heavy 19-inchers. My tq # was around 130 when I did the 181whp pull.

And folks on here are skeptical of the K&N typhoon, the ver 1 did a lot of erode consumer confidence on here. You could go back to stock and just do a K&N drop-in and remove your baffles. That or a racing beat intake + duct.

And you'll want a Cobb AP at some point.

Good luck and good job so far!
Old 04-10-2009, 04:06 PM
  #48  
Registered
iTrader: (2)
 
Easy_E1's Avatar
 
Join Date: Sep 2005
Location: Bellevue WA
Posts: 7,675
Likes: 0
Received 5 Likes on 3 Posts
Old 04-10-2009, 05:53 PM
  #49  
Administrator
iTrader: (7)
 
Jedi54's Avatar
 
Join Date: Mar 2004
Location: The Dark Side
Posts: 22,396
Received 2,638 Likes on 1,888 Posts
L.M.F.A.O.
love that picture!
Old 04-10-2009, 09:52 PM
  #50  
Registered User
Thread Starter
 
RX876's Avatar
 
Join Date: Apr 2008
Location: Pembroke Pines, Florida
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Easy_E1
Thats what I felt like


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Got my 8 dyno'd... Does this seem right????



All times are GMT -5. The time now is 03:59 AM.