Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

my dyno charts

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 03-31-2005, 09:49 AM
  #1  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
my dyno charts

not real bad numbers for the car. the first one is a third gear pull and 2nd one is a 4th gear pull.
Attached Thumbnails my dyno charts-rx81.jpg   my dyno charts-rx82.jpg  
Old 03-31-2005, 10:05 AM
  #2  
RX8 HA HA
 
XDEEDUBBX's Avatar
 
Join Date: Aug 2003
Location: Gardena Cali 310
Posts: 11,772
Likes: 0
Received 5 Likes on 5 Posts
i like the 4th gear pull much better
Old 03-31-2005, 12:19 PM
  #3  
Go Texas Longhorns!
 
brillo's Avatar
 
Join Date: Apr 2003
Location: Houston, Texas
Posts: 1,818
Likes: 0
Received 1 Like on 1 Post
thats a good A/F ratio if it never drops below 13? Are you stock or have you modded the car?
Old 03-31-2005, 12:47 PM
  #4  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
besides the suspension mods it has a k&n intake, sr high flow cat and midpipe and a tanabe catback. the first 4th gear pull did 171hp, the one on the chart is after heat soak, hopefully my turbo kit will be here soon and i can see the improvements.
Old 03-31-2005, 01:03 PM
  #5  
Go Texas Longhorns!
 
brillo's Avatar
 
Join Date: Apr 2003
Location: Houston, Texas
Posts: 1,818
Likes: 0
Received 1 Like on 1 Post
hows your gas mileage?
Old 03-31-2005, 03:01 PM
  #6  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
well when i go on road trips mainly all interstate i get 240 miles to a full tank around town i would say about 190. its crappy if you ask me espcially with 93 being $2.45 a gallon
Old 03-31-2005, 03:17 PM
  #7  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
That's about as lean as Warren's car (Renwar1) - he made 206whp...on a different dyno.
Old 03-31-2005, 03:18 PM
  #8  
Go Texas Longhorns!
 
brillo's Avatar
 
Join Date: Apr 2003
Location: Houston, Texas
Posts: 1,818
Likes: 0
Received 1 Like on 1 Post
Are you sure these A/F numbers are correct? I just can't see how you get worse mileage than my stock rx8 with that lean of a run

anyone else want to chime in on this?
Old 03-31-2005, 03:19 PM
  #9  
Registered User
 
Brice-RX8's Avatar
 
Join Date: Feb 2005
Location: Winston-Salem, NC
Posts: 882
Likes: 0
Received 2 Likes on 2 Posts
The 4th gear is the most accurate correct since it is closer to a 1:1 ratio?
Old 03-31-2005, 03:21 PM
  #10  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
Originally Posted by Brice-RX8
The 4th gear is the most accurate correct since it is closer to a 1:1 ratio?

No... 5th is the 1:1, and the best gear to dyno in.
Old 04-01-2005, 10:04 AM
  #11  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
wow, are you sure 5th gear is the 1-1 gear, that seems a lil high and a lot of load. and yeah the o2's are correct, of course most of my driving around town is in 2nd gear and in the powerband. what mods did the guy who put down 206hp have?was he force induced?
Old 04-01-2005, 10:09 AM
  #12  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
Originally Posted by upgradesRX
wow, are you sure 5th gear is the 1-1 gear, that seems a lil high and a lot of load. and yeah the o2's are correct, of course most of my driving around town is in 2nd gear and in the powerband. what mods did the guy who put down 206hp have?was he force induced?
Yes, I'm very sure.


The guy who put down a 206whp run was 100% stock. 2004 RX8, GT, 15K miles.
Old 04-01-2005, 10:35 AM
  #13  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
damn i wish i would have got his car, he only has about a 14% loss in drivetrain compared to the 238 base rating from mazda.
Old 04-01-2005, 10:38 AM
  #14  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
Originally Posted by upgradesRX
damn i wish i would have got his car, he only has about a 14% loss in drivetrain compared to the 238 base rating from mazda.

...All of our Manual Transmission cars have the same drivetrain loss - the issue is, our engines are in different states of tune. Frankly, 200whp based on 238 flywheel HP is acceptable; If I could get a solid 200whp I'd feel like I got all of the 238 horses I paid for.
Old 04-01-2005, 02:00 PM
  #15  
Bullshit Detector
 
RX3+5's Avatar
 
Join Date: Oct 2004
Location: Auburn, CA
Posts: 272
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by brillo
Are you sure these A/F numbers are correct? I just can't see how you get worse mileage than my stock rx8 with that lean of a run

anyone else want to chime in on this?
The AFR's are wrong because the probe is after the cat.

Vince
Old 04-02-2005, 03:03 PM
  #16  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
yeah the probe was after the cat but that doesnt mean they are wrong.
Old 04-02-2005, 06:44 PM
  #17  
X-Sapper
 
army_rx8's Avatar
 
Join Date: Jan 2004
Location: where angle's fear to tread
Posts: 2,392
Likes: 0
Received 0 Likes on 0 Posts
have there been any dyno pulls in 5th on here.
Old 04-02-2005, 07:27 PM
  #18  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
Originally Posted by army_rx8
have there been any dyno pulls in 5th on here.

Yes - Its probably 'best' to dyno in 5th...I have, and will continue.
Old 04-02-2005, 08:13 PM
  #19  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
what was your speed in 5th on the dyno?
Old 04-02-2005, 08:15 PM
  #20  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
150...wanna see?

http://www.d-mphotos.com/images/rx8/...thgeardyno.wmv

Here's the 6th gear run:

http://www.d-mphotos.com/images/rx8/.../rx8184mph.wmv

Last edited by dmp; 04-02-2005 at 08:19 PM.
Old 04-04-2005, 09:54 AM
  #21  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
i thought all rx8 were electronically limited to 148mph, how did you manage to do away with that
Old 04-04-2005, 11:00 AM
  #22  
dmp
RX8 and a Truk....
 
dmp's Avatar
 
Join Date: Nov 2004
Location: OKC
Posts: 4,658
Received 7 Likes on 5 Posts
Originally Posted by upgradesRX
i thought all rx8 were electronically limited to 148mph, how did you manage to do away with that

It appears they are not. Everyone who dyno'd at my event w/ an RX8 hit 150mph in 5th.

Btw - how many miles on your car?

Today the service guy told me he spoke to a mazda rep about the difference in HP - he suggested it'll take 10K miles or so, before the engine seals 'seat' or something...and that's the cause...until then, the car isn't running at full compression.

who knows?
Old 04-04-2005, 11:34 AM
  #23  
Registered User
Thread Starter
 
upgradesRX's Avatar
 
Join Date: May 2004
Location: huntington,wv
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
ive got 19k, im pretty sure its broke in
Old 04-04-2005, 11:37 AM
  #24  
X-Sapper
 
army_rx8's Avatar
 
Join Date: Jan 2004
Location: where angle's fear to tread
Posts: 2,392
Likes: 0
Received 0 Likes on 0 Posts
i think the only gear that is governed is 6th..i've hit 150 in 5th at the track...switching to 6th just droped it to 148. LOL:D


^^hehe got you beat i'm abotu to hit 33k...so i'm pretty sure mine is broken in:D
Old 04-04-2005, 11:40 AM
  #25  
Bigus Rotus
iTrader: (3)
 
Nemesis8's Avatar
 
Join Date: Jun 2004
Location: Missouri
Posts: 8,573
Likes: 0
Received 1 Like on 1 Post
Originally Posted by upgradesRX
yeah the probe was after the cat but that doesnt mean they are wrong.
They will not be accurate with a sniffer in the tail pipe. You need to weld in a bung ahead of the CAT to get the best readings.


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

Quick Reply: my dyno charts



All times are GMT -5. The time now is 04:04 PM.