Single Turbo RX-7's Questions about all aspects of single turbo setups.

GT35R fd3s dynojet numbers

Thread Tools
 
Search this Thread
 
Old Sep 6, 2008 | 06:36 PM
  #1  
hsitko's Avatar
Thread Starter
Archdandy
Tenured Member 15 Years
iTrader: (1)
 
Joined: Mar 2006
Posts: 550
Likes: 3
From: Predominantly educated metropolitan area
GT35R fd3s dynojet numbers

So i had my car tuned by Steve Kan about a month ago with some seriously bad intake temps on a dyno dynamics dyno. My intake temps got as high as 65 degrees c. I properly ducted it and got to a consistent 42 degrees c. and re-dynoed the car at Drift Office in Auburn. Today it made 379whp. Which is exactly 1hp away from what i was hoping to make. Thanks Bob for an awesome experience on a very nice Brand New Dyno! Very nice equipment there. Here is the nice new chart. 4th gear by the way if it matters to anyone. Enjoy.

Reply
Old Sep 6, 2008 | 06:40 PM
  #2  
Initial_D_Boi's Avatar
Junior Member
 
Joined: Jan 2007
Posts: 10
Likes: 0
From: Grande Prairie
oh
Reply
Old Sep 6, 2008 | 10:31 PM
  #3  
mdpalmer's Avatar
T O R Q U E!
Tenured Member 10 Years
iTrader: (24)
 
Joined: Jan 2004
Posts: 2,034
Likes: 1
From: far far away
Hey looks great. I'm going that route someday. JUdging by the torque, acceleration from 3k on up looks pretty scary Do you have the dyno operator's runfiles? I would like to see them.

The boost curve looks rather bumpy, although the torque seems to be pretty steady above 5k... and A/F? Almost looks a little lean from the graph above. What was your own WB02 telling you A/F wise?

EDIT: Would you mind spillling more details on the tune... gas you used, timing under boost? What EMS? Thanks
Reply
Old Sep 6, 2008 | 10:37 PM
  #4  
cewrx7r1's Avatar
Eye In The Sky
Tenured Member: 25 Years
iTrader: (2)
 
Joined: Feb 2001
Posts: 7,941
Likes: 133
From: In A Disfunctional World
That is the worst boost curve I ever seen. What gives?
Reply
Old Sep 6, 2008 | 10:47 PM
  #5  
Jason's Avatar
The one
iTrader: (5)
 
Joined: Jul 2001
Posts: 3,862
Likes: 5
From: Fort Worth, TX
Originally Posted by cewrx7r1
That is the worst boost curve I ever seen. What gives?
I was going to say the samething. Whats weird is you dont see much variation in the HP which is common when the boost is all over the place.
Reply
Old Sep 7, 2008 | 12:47 AM
  #6  
hsitko's Avatar
Thread Starter
Archdandy
Tenured Member 15 Years
iTrader: (1)
 
Joined: Mar 2006
Posts: 550
Likes: 3
From: Predominantly educated metropolitan area
The problem here is, i'm running my wastegate with a 7lb spring at 15psi, so the boost is a little strange to say the least. I have a new spring on the way which should really help smooth things out. That will allow me to properly tune my boost controller. So yeah your right. This is only really the first incarnation of this massive project. Lots of little bugs to iron out. Lots of fun so far and lots more to come i'm sure. And yeah you are right this car is completely insane from 3k and up. Not even slightly disappointed with any of my choices here.

92 octane pump gas, apexi power fc, the tune was done by Steve Kan with some boost oscillation which is seen in this chart. Oh and i'm pretty sure that its not lean at all. Probably the contrary. It looks to me to be at a pretty consistent 11 or 12.1 afr which my friend is quite rich.

Last edited by hsitko; Sep 7, 2008 at 01:13 AM.
Reply
Old Sep 7, 2008 | 01:03 PM
  #7  
arghx's Avatar
rotorhead
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Aug 2004
Posts: 16,205
Likes: 461
From: cold
likely a boost controller with the gain set too high, classic overshoot symptoms
Reply
Old Sep 7, 2008 | 03:30 PM
  #8  
crispeed's Avatar
'Tuna'
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 4,637
Likes: 3
From: Miami,Fl,USA
Originally Posted by hsitko
It looks to me to be at a pretty consistent 11 or 12.1 afr which my friend is quite rich.
Congrats!
Looks like the power was still going up at 7k rpm.
There's a huge difference in power and tuning between 11 and 12:1 AFR's. That's not consistent afr's. Also 12.1 afr is not considered rich and is quite lean by rotary standards especially for the fuel being used to tune. Lean do give nice #'s on the dyno if that's important to you.

Last edited by crispeed; Sep 7, 2008 at 03:34 PM.
Reply
Old Sep 7, 2008 | 03:40 PM
  #9  
Gorilla RE's Avatar
GorillaRaceEngineering.co
Tenured Member: 20 Years
iTrader: (1)
 
Joined: Feb 2003
Posts: 2,048
Likes: 0
From: New Orleans
Originally Posted by crispeed
Lean do give nice #'s on the dyno if that's important to you.
Sad thing is that it most the time is the most important thing to many people... Who cares about the 2-20k in engine work and the fact that I paid good money for my mack daddy fuel system.....I just want a queen

-J
Reply
Old Sep 8, 2008 | 06:49 AM
  #10  
Custard's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Aug 2007
Posts: 75
Likes: 0
From: South Africa
Nice numbers...

which GT35R are you running : T3 or T4...Rx7store or an A-spec. Also like to know if your motor is ported or still stck?

Greg
Reply
Old Sep 8, 2008 | 10:08 AM
  #11  
hsitko's Avatar
Thread Starter
Archdandy
Tenured Member 15 Years
iTrader: (1)
 
Joined: Mar 2006
Posts: 550
Likes: 3
From: Predominantly educated metropolitan area
It is a t3 with a .82 exhaust side, and an anti surge housing. Mild street port. I made the kit. The manifold is made by clr motorsports. Pretty nice stuff. Kick *** powerband. I have no idea why people bother with divided t4 1.06 stuff when they come from garrett capable of this.
Reply
Old Sep 8, 2008 | 10:35 AM
  #12  
enzo250's Avatar
IRS Champion
Tenured Member 10 Years
 
Joined: Aug 2001
Posts: 2,038
Likes: 1
From: NY
Originally Posted by hsitko
I have no idea why people bother with divided t4 1.06 stuff when they come from garrett capable of this.
Not sure what you mean?
Capable of what?

My brother's car run's a T3 1.06 and he's making 450hp+ at less boost then you run.

I feel .82 is too small..
Reply
Old Sep 8, 2008 | 12:32 PM
  #13  
crispeed's Avatar
'Tuna'
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 4,637
Likes: 3
From: Miami,Fl,USA
Originally Posted by hsitko
It is a t3 with a .82 exhaust side, and an anti surge housing. Mild street port. I made the kit. The manifold is made by clr motorsports. Pretty nice stuff. Kick *** powerband. I have no idea why people bother with divided t4 1.06 stuff when they come from garrett capable of this.
Your .82 housing might be limiting peformance base on your setup like Enzo said above. You're basically makng around the same power as a FD with stock turbos for the boost level.
How much boost were you actually running? I said this before but it looks like the power was still increasing at 7k rpm so why didn't you take it higher?

Last edited by crispeed; Sep 8, 2008 at 12:38 PM.
Reply
Old Sep 8, 2008 | 01:21 PM
  #14  
Zero R's Avatar
Just in time to die
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2001
Posts: 4,143
Likes: 2
From: look behind you
Originally Posted by hsitko
I have no idea why people bother with divided t4 1.06 stuff when they come from garrett capable of this.

Originally Posted by Enzo250

making 450hp+ at less boost then you run

That's one good reason right there. It's all about what your after.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SakeBomb Garage
SakeBomb Garage
9
May 11, 2020 10:04 AM
SakeBomb Garage
Vendor Classifieds
5
Aug 9, 2018 05:54 PM
bigtuna
Single Turbo RX-7's
9
Oct 8, 2015 10:01 PM
Clacor
Single Turbo RX-7's
19
Sep 11, 2015 08:36 PM
SakeBomb Garage
SakeBomb Garage
1
Sep 7, 2015 03:32 PM




All times are GMT -5. The time now is 10:12 AM.