Notices
RX-8 Multimedia/Photo Gallery Share your pics,videos or links to them.

Greddy turbo at the Dragsrip - 13.9sec

Thread Tools
 
Rate Thread
 
Old Aug 18, 2005 | 05:09 PM
  #1  
adrian-1's Avatar
Thread Starter
Ex- member.
 
Joined: Jan 2004
Posts: 1,694
Likes: 1
From: Austin, TX
Greddy turbo at the Dragsrip - 13.9sec

Well, not much of an improvement from my 14.0sec run last month (untuned and leak).
I'm having problems holding boost. I think it's due to the 8's computer "learning" and changing the fuel trim which makes my tuned map worthless.

6psi boost spike then 3psi holding boost after 6k rpms.

I'm getting the Interceptor X EMS next month and I'll revisit the track then.

To read the Greddy E-01 graph at the end... the bottom left number is boost, middle is rpm's and right is throttle position (100% is WOT).

Video link here (streetfire.net)
Attached Thumbnails Greddy turbo at the Dragsrip - 13.9sec-13.97-98.32.jpg   Greddy turbo at the Dragsrip - 13.9sec-14.0-99.01.jpg  
Reply
Old Aug 18, 2005 | 05:15 PM
  #2  
Mugatu's Avatar
Even My Dog Searches
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,664
Likes: 1
From: NY
unfortunately these results are proving that the turbo is not worth the money. the rx8 is too smart and intrusive and doesn't allow for big gains without remapping air/fuel.
Reply
Old Aug 18, 2005 | 05:36 PM
  #3  
adrian-1's Avatar
Thread Starter
Ex- member.
 
Joined: Jan 2004
Posts: 1,694
Likes: 1
From: Austin, TX
Although the turbo is small and can't handle alot of boost, it isn't the problem. The blue emanage is not up to the task of controlling the extra fuel needed without the 8's ecu changing it in the future.

We'll see how the interceptor X improves my performance/ times. Again, these times are basically with 3psi boost.
Reply
Old Aug 18, 2005 | 06:18 PM
  #4  
cas2themoe's Avatar
PoloRican Rotary
 
Joined: Feb 2004
Posts: 1,501
Likes: 0
From: Maryland
You need more boost man! Wheres the guys that messed with the EMS the other day here on the forums? LOL He was busting *** on the Dyno! 291HP and 249lbs of Torque! I'd bet that car will bust some *** on a track. :D

I just think you need someone to tune your car a bit better.
Reply
Old Aug 18, 2005 | 06:20 PM
  #5  
cas2themoe's Avatar
PoloRican Rotary
 
Joined: Feb 2004
Posts: 1,501
Likes: 0
From: Maryland
Here they did it http://www.mazsport.net/html/index.html
Reply
Old Aug 18, 2005 | 06:39 PM
  #6  
Tigster's Avatar
RX8 ADDICTED!!!
 
Joined: Aug 2003
Posts: 1,108
Likes: 0
Originally Posted by cas2themoe
That is what he said he bought... It comes next month.
Reply
Old Aug 18, 2005 | 06:51 PM
  #7  
XDEEDUBBX's Avatar
RX8 HA HA
 
Joined: Aug 2003
Posts: 11,772
Likes: 5
From: Gardena Cali 310
congrats on 13.9
Reply
Old Aug 18, 2005 | 06:59 PM
  #8  
Moostafa29's Avatar
Storm Trooper
 
Joined: May 2004
Posts: 3,908
Likes: 0
From: Freakmont, CA
I'm sure you'll do much better with the interceptor. But at least you broke 13.
Reply
Old Aug 18, 2005 | 07:09 PM
  #9  
Fanman's Avatar
Registered User
 
Joined: Nov 2003
Posts: 3,281
Likes: 1
From: Glendale, CA
Yeah 6 & 3 are not good. Try adjusting your actuator rod. I'm at 7.5 & 5.5 right now...after the adjustment.
Reply
Old Aug 19, 2005 | 03:38 PM
  #10  
sfRXgr8's Avatar
San Francisco's Finest
 
Joined: Aug 2005
Posts: 19
Likes: 0
From: San Francisco
I'm not trying to get flamed.. but..

Is the quarter mile really that important? My GTA runs 11 1/2 in the 1/4, and it's got a live rear axle, doesn't handle all that well (especially in comparison) and is ultra-fidgety on the throttle. By comparison, my 8 isn't the quickest, but can literally run circles around the GTA. And it's more comfortable. And it looks better (more modern anyway), and it's millions times higher quality. For the 1/4... should it be that important to us?
Reply
Old Aug 19, 2005 | 03:54 PM
  #11  
Sigma's Avatar
Registered
 
Joined: Mar 2005
Posts: 691
Likes: 0
I'm not trying to get flamed.. but..

Is the quarter mile really that important? My GTA runs 11 1/2 in the 1/4, and it's got a live rear axle, doesn't handle all that well (especially in comparison) and is ultra-fidgety on the throttle. By comparison, my 8 isn't the quickest, but can literally run circles around the GTA. And it's more comfortable. And it looks better (more modern anyway), and it's millions times higher quality. For the 1/4... should it be that important to us?
Of course not for everyone, no. But some people like all the attributes of the RX-8 and want it to be fast in a straight-line too.

Even if you put the RX-8 more at home on an actual track, 1/4-mile times and traps are important for corner exit speeds.
Reply
Old Aug 19, 2005 | 04:16 PM
  #12  
DreRX8's Avatar
Registered User
 
Joined: Jun 2004
Posts: 1,959
Likes: 0
From: Houston, TX
What cars were you up against that ran the 11 and the 14.5? I think that a tuned Greddy Turbo 8 is good for stock FD times--if the ECU can be overcome--sounds like its time to play with the interceptor.
Reply
Old Aug 19, 2005 | 05:39 PM
  #13  
adrian-1's Avatar
Thread Starter
Ex- member.
 
Joined: Jan 2004
Posts: 1,694
Likes: 1
From: Austin, TX
Originally Posted by Fanman
Yeah 6 & 3 are not good. Try adjusting your actuator rod. I'm at 7.5 & 5.5 right now...after the adjustment.
It's already adjusted 1 full turn. I'd rather use the boost controller to increase the boost.

Originally Posted by DreRX8
What cars were you up against that ran the 11 and the 14.5? I think that a tuned Greddy Turbo 8 is good for stock FD times--if the ECU can be overcome--sounds like its time to play with the interceptor.
The 14.5 was an older mustang and I'm not sure what the 11sec car was, maybe an eagle talon (heavily modified).
Reply
Old Aug 19, 2005 | 10:15 PM
  #14  
cleoent's Avatar
n00b
 
Joined: Jun 2005
Posts: 1,487
Likes: 1
From: Bay Area, CA
what are you launching at in that video?
Reply
Old Aug 20, 2005 | 12:33 AM
  #15  
Fanman's Avatar
Registered User
 
Joined: Nov 2003
Posts: 3,281
Likes: 1
From: Glendale, CA
Didn't know you got the BC. If you have a boost controller, then go for it. What were you running when you were stock ? A change of say 15.0 to 13.9 would be nice. A change of 14.5 to 13.9 would not be nice.
Reply
Old Aug 20, 2005 | 04:56 AM
  #16  
adrian-1's Avatar
Thread Starter
Ex- member.
 
Joined: Jan 2004
Posts: 1,694
Likes: 1
From: Austin, TX
I launch around 6,800-7,000. Feather it til I get traction then floor it.

My best time stock was 15.0, so a 1 sec improvement is really good. Of course my other mods, besides my 3psi turbo, help also..... 17" wheels, falken rt-615s, upgraded clutch, rb flywheel, rp hiflow cat, etc.
The car has so much more potential. Can't wait to get the Interceptor X and get the turbo running better.
Reply
Old Aug 22, 2005 | 10:08 PM
  #17  
BLUE_SIX's Avatar
SIX means six speed!
 
Joined: Apr 2005
Posts: 5
Likes: 0
From: Fort Worth, Texas
Originally Posted by adrian-1
I launch around 6,800-7,000. Feather it til I get traction then floor it.

My best time stock was 15.0, so a 1 sec improvement is really good. Of course my other mods, besides my 3psi turbo, help also..... 17" wheels, falken rt-615s, upgraded clutch, rb flywheel, rp hiflow cat, etc.
The car has so much more potential. Can't wait to get the Interceptor X and get the turbo running better.

Yo Adrian...

Bro u need to work on those reaction times! Getting some real slicks would also
improve a bit. I bet you could actually hit low 13's if u did.

With the X chip you sure as hell shouldn't have problems hitting low 13's.

But if u work on those reaction times... you may even end up with a high 12.
Reply
Old Aug 22, 2005 | 10:15 PM
  #18  
adrian-1's Avatar
Thread Starter
Ex- member.
 
Joined: Jan 2004
Posts: 1,694
Likes: 1
From: Austin, TX
Originally Posted by BLUE_SIX
But if u work on those reaction times... you may even end up with a high 12.

You are SO right.
How many times have you been to a dragstrip?

Those only matter in bracket racing, which I wasn't doing. On test and tune the reaction times mean nothing. I sometimes wait 2-3secs AFTER the green if the car next to me is insanely loud.

Last edited by adrian-1; Aug 22, 2005 at 10:29 PM.
Reply
Old Aug 22, 2005 | 11:22 PM
  #19  
Kel Rx8's Avatar
if your not 1st your last
 
Joined: Jan 2004
Posts: 4,889
Likes: 1
From: Jersey & Peru
congrats on 13.9
next prediction 13.43@101
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hunterkelley24
Series I Engine Tuning Forum
14
Jun 14, 2022 08:32 AM
galognu
Rotary Swaps
138
Nov 16, 2020 05:20 AM
JimmyBlack
Series I Major Horsepower Upgrades
273
Feb 10, 2020 10:23 PM
jDt!
RX-8 Parts For Sale/Wanted
11
Oct 2, 2015 04:04 PM
MolecularConcept
RX-8 Discussion
11
Sep 29, 2015 09:21 PM



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


All times are GMT -5. The time now is 01:00 AM.