Notices
Mazsport Rotary tuner and service - Have developed ECU for RX-8's

Bad dyno results or just me?

 
Thread Tools
 
Rate Thread
 
Old Apr 14, 2006 | 04:15 PM
  #1  
jj_starr's Avatar
Thread Starter
Proud Shinka Owner
 
Joined: Feb 2005
Posts: 5
Likes: 0
From: Chicago
Bad dyno results or just me?

I've got an 05 shinka that I bought new in feb 05. Of course I just couldn't leave it stock which is why I'm in this part of the forum lol. I decided to go with the greddy turbo kit with the interceptor, greddy type s bov, greddy sp2 muffler, midpipe, and ACT street and strip clutch. Not the most impressive setup but it was exactly what I wanted cause I wasn't looking for giant numbers. In January I had all of this done by a place relatively close.

The install seems great cause it's super clean although there were a few things the shop could have done better but it seems like they did a good job. They did leave the stock cat on and just told me to bring it back when I have a chance and they'll put the midpipe on so no big deal. However when I looked at other dyno sheets from people with similar setups I'm personally kinda disappointed.

The same shop that did the install did the tuning. When I questioned them about the results they said that they went with a safe tune at only 5psi and that they usually tend to tune it rich for safety. Fair enough but they made it sound like I was expecting to put up huge numbers with almost no boost and that it was gonna be the fastest car around. I admit I wanted more power but I'm not crazy. If I was I would have bought one of those $99 superchargers off of ebay that supposedly make more power and better gas mileage.

Anyways here's the dyno sheet that they gave to me when I picked the car up and both runs were with everything installed one was just a later map. Anyways I figured I'd throw it up here with the backround and see what everyone has to say. Am I being unreasonable thinking I should be making more power?



These runs were done with:
-Greddy Turbo Kit
-Interceptor-X
-Greddy Type S bov
-Greddy sp2 Muffler
-ACT Street & Strip clutch

Last edited by jj_starr; Apr 14, 2006 at 04:59 PM. Reason: forgot I took english 101
Old Apr 14, 2006 | 04:17 PM
  #2  
cleoent's Avatar
n00b
 
Joined: Jun 2005
Posts: 1,487
Likes: 1
From: Bay Area, CA
That's pretty typical (IIRC) of what a poorly tuned (or not tuned) greddy kit puts down. usually a bit higher, 230 or so on a dynojet.

(btw i did not read any of your thread, i just looked at the dyno because you have no paragraphs and that makes it very annoying to read)
Old Apr 14, 2006 | 04:26 PM
  #3  
BigOLundh's Avatar
#1 Legend
iTrader: (1)
 
Joined: May 2004
Posts: 3,904
Likes: 0
From: TEXAS
i also can not read your post for more than 2 lines without wanting to shoot myself. Please organize your thoughts better and use paragraphs

Anyway, your dyno looks like crap accross the board. get it tuned ASAP.
Do you have an accompanying A/F reading with that dyno?
Old Apr 14, 2006 | 04:47 PM
  #4  
dmp's Avatar
dmp
RX8 and a Truk....
 
Joined: Nov 2004
Posts: 4,658
Likes: 7
From: OKC
Turn on 'smoothing' so we can actually READ the graph As-is that car looks to have about the SAME HP my car does with just an intake and exhaust; mid-high 190s the rear wheels. Don't look at the peak numbers - they don't mean ANYTHING with that HORRIBLY choppy graph.
Old Apr 14, 2006 | 04:53 PM
  #5  
jj_starr's Avatar
Thread Starter
Proud Shinka Owner
 
Joined: Feb 2005
Posts: 5
Likes: 0
From: Chicago
Originally Posted by dmp
Turn on 'smoothing' so we can actually READ the graph As-is that car looks to have about the SAME HP my car does with just an intake and exhaust; mid-high 190s the rear wheels. Don't look at the peak numbers - they don't mean ANYTHING with that HORRIBLY choppy graph.
Ok I wasn't there when they did the tuning. That was just the piece of paper they gave me when I picked up the car.
Old Apr 14, 2006 | 05:35 PM
  #6  
The Mighty Red's Avatar
Rally Car Racer
 
Joined: Sep 2005
Posts: 277
Likes: 2
From: Dallas, TX
SSR Engineering claims "280WHP @ 6.5PSI"

http://www.ssr-engineering.com/products_rx8turbo.php
Old Apr 14, 2006 | 06:34 PM
  #7  
Spin9k's Avatar
Momentum Keeps Me Going
 
Joined: Sep 2002
Posts: 5,036
Likes: 5
From: Colorado
I'd suggest getting another independent dyno run done, then return to the shop where you got the turbo installed and if it is anything similar... say WTH is up with the tune you did? Even smoothing wouldn't make that curve anything to be happy about, I mean just look at that mess...
Old Apr 14, 2006 | 06:37 PM
  #8  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,720
Likes: 344
From: Smallville
They must have done something wrong with the install.... The Int X tuning is better than that untuned

Hell the E-manage is better than that untuned.
Old Apr 14, 2006 | 11:28 PM
  #9  
RXhusker's Avatar
Int-X 293WHP 242TQ :)
 
Joined: Oct 2002
Posts: 1,022
Likes: 0
From: Omaha, NE
I would have them check the cat also -- I melted my random tech high flow/temp cat after the Interceptor was installed. A melted cat can cause some major issues and a bad tune as well.
Old Apr 15, 2006 | 01:50 AM
  #10  
MadDog's Avatar
Consiglieri
 
Joined: Feb 2004
Posts: 1,275
Likes: 0
From: yourI'mgirl
That is the worst looking dyno chart I have ever seen. There is no useful information there. Something is VERY wrong with the dyno. If the car were really acting like that, it would have kicked and bucked right off the rollers. That chart is non-physical and meaningless. I would demand my $ back. There is no way they could have tuned using a dyno that appears to be nothing more than a random number generator. Smoothing will not add meaning to this horse $hit.
Old Apr 15, 2006 | 04:45 PM
  #11  
dgerald's Avatar
God is like a shamrock...
 
Joined: Jul 2004
Posts: 94
Likes: 0
From: Tulsa, OK
That's definately wrong. My old e-manage, untuned, looked better than that. I'd put the midpipe on first (get the CAT factor out of the way), then get another pull elsewhere, as soon as you can. If you get the same results the first pull, switch back to the stock map that Scott sent with the Interceptor. If it's still similar, then something may have gotten installed incorrectly.
Old Apr 15, 2006 | 06:45 PM
  #12  
Razz1's Avatar
Mu ha.. ha...
 
Joined: Aug 2004
Posts: 14,361
Likes: 3
From: Cali
Look at the torque! It's 40 or more than stock.

That's what counts.
Old Apr 15, 2006 | 07:01 PM
  #13  
MadDog's Avatar
Consiglieri
 
Joined: Feb 2004
Posts: 1,275
Likes: 0
From: yourI'mgirl
Why are you still trying to interpret this? ITS HORSE $HIT. The dyno is NOT measuring the torque made by the car. If the torque were really fluctuating by 50+ ft-lbs that rapidly, it would have bucked out the door!
Old Apr 15, 2006 | 07:42 PM
  #14  
dmp's Avatar
dmp
RX8 and a Truk....
 
Joined: Nov 2004
Posts: 4,658
Likes: 7
From: OKC
Originally Posted by MadDog
Why are you still trying to interpret this? ITS HORSE $HIT. The dyno is NOT measuring the torque made by the car. If the torque were really fluctuating by 50+ ft-lbs that rapidly, it would have bucked out the door!
Exactly - I could show spikes from one of my dynos showing 300whp (1st gear thru 6th dyno)..

That Dyno is NOT data...yup...it's horseshit.
Old Apr 15, 2006 | 09:54 PM
  #15  
jj_starr's Avatar
Thread Starter
Proud Shinka Owner
 
Joined: Feb 2005
Posts: 5
Likes: 0
From: Chicago
Originally Posted by dmp
Exactly - I could show spikes from one of my dynos showing 300whp (1st gear thru 6th dyno)..

That Dyno is NOT data...yup...it's horseshit.
Thank you that is exactly what I needed to hear. I thought it was bad but now that I know how bad it really is I'm not even sure I trust taking it back to have them fix it. If they thought it was ok to give me the car like that then they obviously don't have very high standards. Thanks guys.
Old Apr 15, 2006 | 11:10 PM
  #16  
BigOLundh's Avatar
#1 Legend
iTrader: (1)
 
Joined: May 2004
Posts: 3,904
Likes: 0
From: TEXAS
You may want to just cut your losses, and go somewhere else to get a new dyno.
Old Apr 25, 2006 | 04:26 PM
  #17  
Aseras's Avatar
Registered User
 
Joined: Mar 2005
Posts: 1,587
Likes: 1
look if you are unsure of your tuning, DO NOT DYNO the car... you risk blowing the engine.. get it tuned right, by someone who know wha they are doing. If you dyno, you are putting the car under a lot of load, and under boost if the car leans out you are going to blow it.

as far as your dyno, is should be a curve a line or some combination of the two, not scribbling from a 3 yr old...
Old Apr 25, 2006 | 04:48 PM
  #18  
Red Devil's Avatar
Registered User
 
Joined: Jun 2002
Posts: 3,086
Likes: 1
From: Misinformation Director - Evolv Chicago
Did you get this done in Chicago, and if so, by who?
Old Apr 25, 2006 | 05:31 PM
  #19  
BlueRenesis82's Avatar
Registered Tracker
 
Joined: Feb 2004
Posts: 3,295
Likes: 0
From: Chicago
odd that it was done at A-spec, they have prob the best rep of any rotary shop in the midwest area
Old Apr 25, 2006 | 05:32 PM
  #20  
BlueRenesis82's Avatar
Registered Tracker
 
Joined: Feb 2004
Posts: 3,295
Likes: 0
From: Chicago
Originally Posted by Red Devil
Did you get this done in Chicago, and if so, by who?
our very own A-spec! weird
Old Apr 26, 2006 | 01:36 PM
  #21  
Red Devil's Avatar
Registered User
 
Joined: Jun 2002
Posts: 3,086
Likes: 1
From: Misinformation Director - Evolv Chicago
I saw the A-spec at the top actually, but I guess I just didn't believe it. Personally, I've never done more than talk to some of the guys at A-spec on the phone, but I've always heard really positive reviews about them.
Old Apr 26, 2006 | 02:16 PM
  #22  
BlueRenesis82's Avatar
Registered Tracker
 
Joined: Feb 2004
Posts: 3,295
Likes: 0
From: Chicago
yeah, I've seen some very mean FD's with their GT40/35 kits in em
Old Apr 26, 2006 | 04:43 PM
  #23  
jj_starr's Avatar
Thread Starter
Proud Shinka Owner
 
Joined: Feb 2005
Posts: 5
Likes: 0
From: Chicago
Thumbs up

Just wanted to get an update in here. Those dyno results were so bad because the stock cat made it almost impossible to tune the car because of the fluctuating A/F ratios it was putting out. Just picked the car up from A-spec again today and now that the stock cat is gone it is way better. Power delivery is smooth as silk and there was a noticeable gain in torque. They were able to fit me in yesterday to get the cat off and put a boost controller in.

For those of you thinking "Oh, they never should have given you the car like that in the first place!" there was a very good reason why they did. The install was delayed because they were sent a clutch for a 7 instead of my 8. It was delayed so long that they only had a couple days before they were going to Japan for a show there. Steve and the guys rushed to get my car finished but in the process didn't take off the cat. With not enough time left they decided to give me the car back like that so that I wouldn't be without a ride while they were closed. One of the guys that stayed in Chicago even came to the shop and opened on Saturday just so that I could pick up my car even though everyone left that Friday and he was supposed to be on vacation.

The only real problem was lack of communication and as soon as I talked to Steve and the guys they bent over backward to make things right. They finished installing everything but still haven't dyno tuned the car. They said they will do that as soon as they finish the other cars they were working on.

So I just want to let everyone know that it was only because I was ignorant and was afraid to call A-spec and find out what was going on that I ran into trouble. A-Spec did a fantastic job on the install and I can't wait to show it off and tell everyone that they are the place to go in Chicago for rotaries. They know their stuff and only because I failed to ask them questions was I left in the dark. To anyone thinging of having work done A-spec is THE place to go.

Jim
A very satisfied A-Spec customer
Old Apr 27, 2006 | 08:57 AM
  #24  
Red Devil's Avatar
Registered User
 
Joined: Jun 2002
Posts: 3,086
Likes: 1
From: Misinformation Director - Evolv Chicago
Ah, thanks. This sounds more in line with their rep.
Old Apr 27, 2006 | 12:35 PM
  #25  
trustbuddy's Avatar
Registered
iTrader: (3)
 
Joined: Apr 2006
Posts: 416
Likes: 0
From: California
any dyno charts with the latest setup other than your butt dyno? glad to head everything went smoothly. i wish i was in chicago...any body know where i can take my 8 to in socal??


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


All times are GMT -5. The time now is 08:45 PM.