Notices
Pettit Racing One of the most respected and accomplished names in Rotaries, Pettit Racing

Pettit Racing’s Forced Induction System

 
Thread Tools
 
Rate Thread
 
Old Feb 9, 2008 | 08:16 PM
  #1201  
Bastage's Avatar
DEVILMAN
iTrader: (1)
 
Joined: Dec 2003
Posts: 1,094
Likes: 2
From: Melbourne, FL
Anyone going to that Deal's Gap rotary rally?

https://www.rx8club.com/deals-gap-rotary-rally-111/dgrr-2008-offical-list-attendees-130025/

I'm planning a trip up to TN/NC/VA that weekend, so the wife and I may stop by and check it out.
Old Feb 9, 2008 | 10:14 PM
  #1202  
shinka213's Avatar
Pettit fangurl <3
 
Joined: Mar 2005
Posts: 5,386
Likes: 0
From: Aston, PA
Originally Posted by dannobre
You need to get a logger to record your A/F...won't have to try and watch you little screen
suggestions on a logger?
Old Feb 9, 2008 | 11:16 PM
  #1203  
HiTMaNN's Avatar
RX-8s Official Cool Guy
 
Joined: Mar 2004
Posts: 2,150
Likes: 1
From: Vancouver BC
Originally Posted by Charles R. Hill
Use Chuck's Hymee.
+1
Old Feb 10, 2008 | 08:45 AM
  #1204  
olddragger's Avatar
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
Google crecorder--very interesting ob2 data collector(x 24 hrs) for $80.00
Old Mar 16, 2008 | 01:19 PM
  #1205  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
A sort of dyno....

Stage 2 with stock ECU reflashed (February 19, 2008 install by Pettit)
This chart shows a funny dip in the curve, I have spoke with another local owner who does not have this dip.
My blower drive belt was also loose in this run, I suspect it was causing the dip @~6k
Or, it may have been the Citgo gas I was forced to stop for on the way there.
(Claimed to be 93 octane)
I will post another chart later, when I can afford (and make time for) another dyno charge.
This chart is NOT an official chart from Pettit.
I found this Dyno near where I live. ($80.00 for two pulls)
And no I did not let them spin my lil baby to 9K while stationary; though I do "shift at the 9K beep" many times when driving.

Last edited by Rote8; Oct 16, 2009 at 05:12 PM.
Old Mar 16, 2008 | 01:46 PM
  #1206  
mysql's Avatar
Doppelgänger
 
Joined: Feb 2008
Posts: 3,192
Likes: 1
From: Florida
APV opens up 2 additional ports at 6000 rpm. You usually see a dip at those point.

Are you MT or AT?
Old Mar 16, 2008 | 02:55 PM
  #1207  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Originally Posted by mysql
APV opens up 2 additional ports at 6000 rpm. You usually see a dip at those point.

Are you MT or AT?
2007 Sport 6 speed MT
Old Mar 16, 2008 | 04:00 PM
  #1208  
Hymee's Avatar
Race Steward
iTrader: (1)
 
Joined: Aug 2003
Posts: 5,430
Likes: 2
From: Brisbane, Australia
Java,

Thanks for sharing. Excuse me for asking, and my ignorance, but where is the other fiffy horsepower? I thought this unit was touted as 300? Perhaps the last 1000 RPM I guess.

Cheers,
C#
Old Mar 16, 2008 | 04:39 PM
  #1209  
morkusyambo's Avatar
Dongbag extrordinare
 
Joined: Nov 2004
Posts: 1,090
Likes: 0
From: Away from the fruits of my labor
This post has nothing to do with the hp#. I just wanted to point out the obvious belt slippage. Not only is it consistently losing boost above 6k, the boost prior to that is inconsistent as well.
Old Mar 16, 2008 | 05:20 PM
  #1210  
mysql's Avatar
Doppelgänger
 
Joined: Feb 2008
Posts: 3,192
Likes: 1
From: Florida
Originally Posted by morkusyambo
This post has nothing to do with the hp#. I just wanted to point out the obvious belt slippage. Not only is it consistently losing boost above 6k, the boost prior to that is inconsistent as well.
there is ~1 psi boost increase at 6,200 rpm, and that's the point where the hp/tq drop and afr's increase.

run #2 seems solid. No weird jumps at 4k rpm
Old Mar 16, 2008 | 05:51 PM
  #1211  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,856
Likes: 1,806
From: Y-cat-o NZ
Originally Posted by Hymee
Java,

Thanks for sharing. Excuse me for asking, and my ignorance, but where is the other fiffy horsepower? I thought this unit was touted as 300? Perhaps the last 1000 RPM I guess.

Cheers,
C#
is that a brown stain I see up your arm Hymee ?
Old Mar 16, 2008 | 06:02 PM
  #1212  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Originally Posted by Hymee
Java,

Thanks for sharing. Excuse me for asking, and my ignorance, but where is the other fiffy horsepower? I thought this unit was touted as 300? Perhaps the last 1000 RPM I guess.

Cheers,
C#
I have stage 2, not the Stage 2 CS, my CAT is still the stock one.
The 307 HP was with a high-flow CAT.
Still 253 on a bad day, is not that bad.
Mazsport is shipping me a dual resonated cat-less mid-pipe soon.
Betsey; Mazsport...... Please soon.....
After I replace the exhaust I will trot on down and pay for a new dyno run.

Any thoughts on a meet with a dyno? (I can has group rate?)

Last edited by Rote8; Mar 17, 2008 at 03:54 PM.
Old Mar 16, 2008 | 06:31 PM
  #1213  
mysql's Avatar
Doppelgänger
 
Joined: Feb 2008
Posts: 3,192
Likes: 1
From: Florida
Originally Posted by Java-fan
Any thoughts on a meet with a dyno? (I can has group rate?)
brotherz racing in tampa charges $30 a pull. Or you can go by the hour for around $100/hr. You can also try titan motorsports up in orlando, I think they had a dyno machine there, but don't know for sure.

If you need more places, go to maps.google.com, search for businesses, type in racing, and start calling the matches nearby.
Old Mar 17, 2008 | 03:57 PM
  #1214  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Originally Posted by mysql
If you need more places, go to maps.google.com, search for businesses, type in racing, and start calling the matches nearby.
The DynoJet website has a list, that is where I found the last one:
DynoJet Dynos
Old Mar 18, 2008 | 08:49 PM
  #1215  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
One other thing with the Dyno....

I did NOT pull any fuses when I dyno'd the car.
I have since learned there is a fuse under the hood that MUST be pulled on the RX8 to get a correct reading.
Old Mar 18, 2008 | 08:50 PM
  #1216  
mysql's Avatar
Doppelgänger
 
Joined: Feb 2008
Posts: 3,192
Likes: 1
From: Florida
I never pulled any fuses. Just disable traction control.
Old Mar 18, 2008 | 08:58 PM
  #1217  
MazdaManiac's Avatar
Banned
iTrader: (3)
 
Joined: Oct 2003
Posts: 16,386
Likes: 28
From: Under my car
Yeah, pulling fuses isn't necessary.

What might be happening is you are reaching the end of the calcLoad range and the PCM is trying to do its torque-limit routine.
No way around that but a reflash, though.

I've never had the TSC/DSC/ABS interfere with a dyno run and I've pulled the fuses to see if anything improved, which it did not.
Old May 9, 2008 | 04:03 PM
  #1218  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Latest HP

I now have the Racing beat cat-back, with the Mazsport dual resonated cat-less mid-pipe.
My car is too lean till I can get the thing tuned/flashed, but I am making 296 RWHP for now.
As far as the lean out, my solution is going to be LOT'S of Methanol for now. LOL
I will need to try some new injectors soon to get MO GAS going in.
Old May 9, 2008 | 04:42 PM
  #1219  
Jedi54's Avatar
Administrator
iTrader: (7)
 
Joined: Mar 2004
Posts: 22,633
Likes: 3,503
From: The Dark Side
dynojet?
Old May 9, 2008 | 05:47 PM
  #1220  
olddragger's Avatar
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
what a/f's are you getting? Are you data collecting?
olddragger
Old May 9, 2008 | 07:08 PM
  #1221  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Originally Posted by MazdaManiac
Which dynomometer did you use?
www.realstreetperformance.com Model 224xLC
Old May 9, 2008 | 07:09 PM
  #1222  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Originally Posted by olddragger
what a/f's are you getting? Are you data collecting?
olddragger
Will post a scan later.
Old Jun 10, 2008 | 01:09 PM
  #1223  
JMKuco's Avatar
Rotary engine addict
 
Joined: Jun 2008
Posts: 303
Likes: 0
From: Guadeloupe (FWI)
HI !

Waiting for your scan...pettit products looks so impressive.

Last edited by JMKuco; Jun 11, 2008 at 07:30 AM.
Old Jun 10, 2008 | 08:19 PM
  #1224  
munche187's Avatar
&quot;MuNcH-E&quot;
 
Joined: Apr 2007
Posts: 627
Likes: 0
From: Pembroke Pines
^I'm confused
Old Jul 19, 2008 | 07:06 PM
  #1225  
Rote8's Avatar
Registered
 
Joined: Oct 2007
Posts: 1,574
Likes: 2
From: Boosted...
Originally Posted by JMKuco
HI !

Waiting for your scan...pettit products looks so impressive.
Sorry for the delay.
I will make data captures at the dyno meet on August 3rd in Kissimmee.
The dyno graph and the data capture should be nice.

I hope to have Snow Performance's Nitro-Booster by then as well.


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


All times are GMT -5. The time now is 03:07 PM.