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.

car wont accelrate at 7lb of boost

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 01-26-2010, 10:50 PM
  #26  
Registered
iTrader: (1)
 
NgoRX8's Avatar
 
Join Date: Oct 2004
Location: CA, Rowland Hts.
Posts: 10,239
Likes: 0
Received 4 Likes on 4 Posts
oh boy... I don't know what else to say here other than... STAY OUT OF BOOST!
Old 01-26-2010, 10:54 PM
  #27  
sold the 8... :(
iTrader: (7)
 
05rex8's Avatar
 
Join Date: Feb 2008
Posts: 4,917
Likes: 0
Received 0 Likes on 0 Posts
lol i think it needs to be said one more time

STAY OUT OF BOOST!

Old 01-26-2010, 10:58 PM
  #28  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Yeah of course but his data logs requires a 2nd and 3rd WOT pull. That is when i noticed the problem.

Does the greddy turbo get out flowed that bad? What is a good peak boost, and sustained boost. I have the actuator all the way in with the set screw taken off
Old 01-26-2010, 11:03 PM
  #29  
sold the 8... :(
iTrader: (7)
 
05rex8's Avatar
 
Join Date: Feb 2008
Posts: 4,917
Likes: 0
Received 0 Likes on 0 Posts
oh ok...lol.

it runs out if flow in the higher rpms...i cant remember where exactly...it's been awhile since i had a regular greddy turbo
Old 01-26-2010, 11:08 PM
  #30  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Yeah im saving up for the bhr rebuild but i have a ways to go for that.
Old 01-26-2010, 11:11 PM
  #31  
sold the 8... :(
iTrader: (7)
 
05rex8's Avatar
 
Join Date: Feb 2008
Posts: 4,917
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by shinka911
Yeah im saving up for the bhr rebuild but i have a ways to go for that.
bnr not bhr

yeah I would say that you're experiencing a normal greddy turbo quirk...boost won't stay consistent to redline...boost will start dropping off up high. I think you are fine.
Old 01-26-2010, 11:14 PM
  #32  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Originally Posted by shinka911
Yeah of course but his data logs requires a 2nd and 3rd WOT pull. That is when i noticed the problem.
You are not reading the instructions, are you?

Last edited by MazdaManiac; 01-26-2010 at 11:17 PM.
Old 01-26-2010, 11:14 PM
  #33  
Mu ha.. ha...
 
Razz1's Avatar
 
Join Date: Aug 2004
Location: Cali
Posts: 14,361
Likes: 0
Received 3 Likes on 3 Posts
How many miles do you have on your turbo?
Old 01-26-2010, 11:15 PM
  #34  
sold the 8... :(
iTrader: (7)
 
05rex8's Avatar
 
Join Date: Feb 2008
Posts: 4,917
Likes: 0
Received 0 Likes on 0 Posts
LOL busted!

MM has spoken

I knew it was too early for boosted runs
Old 01-26-2010, 11:15 PM
  #35  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Yeah BNR my bad.

It just sucks, it pulls so hard than just kind of falls off with the boost. Kind of opposite what you would expect from a rotary.
Old 01-26-2010, 11:17 PM
  #36  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
3) Again, on a safe section of open, flat highway, lower your RPMs to 3000 in 2nd gear (1st gear on the 4-speed automatic).

14) Press the "OK" button again to start the data-log and accelerate at WOT to redline.

15) Release the gas pedal and allow the vehicle to slow and your RPMs to drop and switch to 3rd gear (2nd gear on the 4-speed automatic).

16) When your RPMs have dropped to 3500, once again accelerate at WOT to redline or to the highest safe speed you can attain.

This is what i read from the directions, the afrs pegged at 11.2 so i was not worried about leaning out
Old 01-26-2010, 11:20 PM
  #37  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Oh MM I sent you my logs btw
Old 01-26-2010, 11:49 PM
  #38  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Originally Posted by shinka911
3) Again, on a safe section of open, flat highway, lower your RPMs to 3000 in 2nd gear (1st gear on the 4-speed automatic).
Are you on v4.0 or v4.0.1?
That is a rhetorical question, because I know you are on 4.0.
Now, re-read the instructions.
4.0 does not have any WOT logs.
Old 01-26-2010, 11:54 PM
  #39  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
oh i messed up then i thought i was on 4.0.1

Well i sent you all three logs if that helps.

I have a question about the ap is it supposed to read afrs below 11.2, mine never drops below 11.2 for some reason. or 11.17 according to the logs
Old 01-27-2010, 12:01 AM
  #40  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
You are just not gonna read or follow instructions, are you?
Old 01-27-2010, 12:08 AM
  #41  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
I mean i read everything on the page about data logging and stuff. just thought i was on 4.0.1.

I guess i must have missed something
Old 01-27-2010, 12:18 AM
  #42  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Originally Posted by shinka911
I mean i read everything on the page about data logging and stuff. just thought i was on 4.0.1.

I guess i must have missed something
What is the file name of your current calibration?

Its something like "MM 2004 MT FI BASE USDM v4_0", right?

Did you ever do just the first part of the instructions? Had you sent in the logs from the first part and received and updated calibration ("MM 2004 MT FI USDM v4_0_1")?
What made you think it was time to move on to the second part of the instructions?
Old 01-27-2010, 12:19 AM
  #43  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
yeah the
"MM 2006 MT FI BASE USDM v4_0"
Old 01-27-2010, 12:20 AM
  #44  
RX8 & RX7 owner
 
ZumnRx8's Avatar
 
Join Date: Mar 2008
Location: So. California
Posts: 5,172
Likes: 0
Received 3 Likes on 3 Posts
LOL.... I now know the TURBO version of "what not to do to your car"

1. READ instructions 3 times to confirm next step.

2. Confirm with MM before doing so.
Old 01-27-2010, 12:22 AM
  #45  
Registered User
Thread Starter
 
shinka911's Avatar
 
Join Date: Apr 2009
Location: Gainesville, FL
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
whats the best way to get a hold of Jeff?
Old 01-27-2010, 12:34 AM
  #46  
RX8 & RX7 owner
 
ZumnRx8's Avatar
 
Join Date: Mar 2008
Location: So. California
Posts: 5,172
Likes: 0
Received 3 Likes on 3 Posts
EMAIL like the link on the "INSTRUCTIONS" link he posted earlier.... or drive to ARIZONA? POST#32 on this page.
Old 01-27-2010, 09:33 AM
  #47  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Originally Posted by shinka911
whats the best way to get a hold of Jeff?
Obviously, you already have.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
F51
New Member Forum
9
08-02-2021 04:07 AM
rotorocks
Series I Tech Garage
47
05-11-2016 03:23 PM
9krpmrx8
Series I Trouble Shooting
23
11-05-2015 11:45 PM
JPCZONE
New Member Forum
2
07-21-2015 12:02 PM



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

Quick Reply: car wont accelrate at 7lb of boost



All times are GMT -5. The time now is 11:19 PM.