RX7Club.com


Go Back   RX7Club.com > Tech and Performance > Single Turbo RX-7's
Register Forgot Password?
Register Photos FAQ Members Search Today's Posts Mark Forums Read Vendor DirectoryUsed Cars Garage
Welcome to RX7Club.com

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread Display Modes
Old 05-02-12, 01:13 AM   #1
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ Initial tuning - GT4088 on E85

After a lot of time and effort I finally got my car to a point where I was very confident that it was put together correctly, issue free and ready for professional tuning. Tuning is being done at UMS Tuning and Tony absolutely knows his stuff. Any Rx7 in AZ should go to him for tuning. He is amazing!

After over an hour of straight drivability tuning a few boost runs were made. The car never took a break to cool down and coolant and oil temps were cool and rock solid. After a few full throttle boost runs the car lost fuel pressure while it was idling. Turns out one of the Twist Tite fuel line blew off one of the fuel pumps in the tank. Luckily this happened after a run and the car was idling. The motor is completely fine and should be back on the dyno to complete tuning late this week early next week at the latest. Results up till this point were 526WHP and 398WTQ at 20psi. It looks like there may be enough fuel for 25PSI. We will find out.

Short Mod list:
Rx7 Store GT4088 turbo kit with 1.06 AR turbine housing.
Jet Hot/HPC 2500 degree ceramic coating on manifold, turbine housing, and down pipe.
Custom V Mount IC and Radiator
Dual Bosh 044s
6 x ID 1000cc injectors with base pressure set to 65psi with no vacuum to regulator.
Power FC w/Datalogit
Dual Sensor Connection EGTs with analog out to datalogit
Attached Thumbnails
Initial tuning - GT4088 on E85-brian-fd-dyno.jpg   Initial tuning - GT4088 on E85-brian-fd-dyno4.jpg   Initial tuning - GT4088 on E85-brian-fd-dyno3.jpg  
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-02-12, 04:47 AM   #2
No Sleep, No Food
10 Year Member
 
arghx's Avatar
 
Trader Score: (3)

Join Date: Aug 2004
Location: cold
Posts: 14,563
Since you have the dual EGT signal, what were the EGT's looking like then?
arghx is offline   Reply With Quote
Old 05-02-12, 05:01 AM   #3
FD Project
5 Year Member
 
BLACK MAMBA's Avatar
 
Trader Score: (54)

Join Date: Apr 2009
Location: Palm Beach, FL
Posts: 2,158
Also make sure your add clamps to those fuel hoses in the push-lok fittings on the tank, i had the same issue twice and like you got lucky that both time car wasnt under boost.
__________________


Black Mamba Performance
Black Mamba S472, Semi P Port, Adaptronic,

Black Mamba Performance ABS Delete Kit now available.
BLACK MAMBA is offline   Reply With Quote
Old 05-02-12, 08:04 AM   #4
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by arghx View Post
Since you have the dual EGT signal, what were the EGT's looking like then?
I haven't gotten the logs yet. I'm absolutely going to share when tuning is completely finished. I can tell you that I set the alarms on both egt units to go off at 1700 degrees and they never went off.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-02-12, 08:07 AM   #5
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by FC3S1991 View Post
Also make sure your add clamps to those fuel hoses in the push-lok fittings on the tank, i had the same issue twice and like you got lucky that both time car wasnt under boost.
Wow. I was actually going to put clamps on as it seemed logical but the local fitting shop here in town said not to do it as it would compromise the seal? The tuner said he always put clamps on and has never had one blow off.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-02-12, 08:23 AM   #6
FD Project
5 Year Member
 
BLACK MAMBA's Avatar
 
Trader Score: (54)

Join Date: Apr 2009
Location: Palm Beach, FL
Posts: 2,158
yeah, the only place that i had push lock fittings was inside the tank everywhere else i have- AN fittings, the problem is that the fuel vapors inside the tank make the hose soft and the hoses comes off under pressure.
__________________


Black Mamba Performance
Black Mamba S472, Semi P Port, Adaptronic,

Black Mamba Performance ABS Delete Kit now available.
BLACK MAMBA is offline   Reply With Quote
Old 05-02-12, 08:40 AM   #7
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by FC3S1991 View Post
yeah, the only place that i had push lock fittings was inside the tank everywhere else i have- AN fittings, the problem is that the fuel vapors inside the tank make the hose soft and the hoses comes off under pressure.
Sucks. I was going to do stainless steel braided with an fittings but from everything I've read this shouldn't be used in the tank especially with E85.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-02-12, 12:18 PM   #8
In the burnout box...
10 Year Member
 
mono4lamar's Avatar
 
Trader Score: (32)

Join Date: Oct 2003
Location: New York
Posts: 4,453
Quote:
Originally Posted by Neutron View Post
I haven't gotten the logs yet. I'm absolutely going to share when tuning is completely finished. I can tell you that I set the alarms on both egt units to go off at 1700 degrees and they never went off.
That means he understands timing. I would lower the alarm to 1600, 1650 max. Sounds like you're in pretty good tuning hands though...
mono4lamar is offline   Reply With Quote
Old 05-03-12, 09:56 AM   #9
Insane Burnout
5 Year Member
 
indio84's Avatar
 
Trader Score: (7)

Join Date: Jun 2007
Location: aruba
Posts: 651
Could you take picture of the dual 044 intank pumps? Would like to see how you were able to mount both in the tank.
indio84 is offline   Reply With Quote
Old 05-03-12, 10:28 AM   #10
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by indio84 View Post
Could you take picture of the dual 044 intank pumps? Would like to see how you were able to mount both in the tank.
Sure. It is a CJ motorsports billet aluminum dual pump hanger made for 044's. It is a tight fit.
Attached Thumbnails
Initial tuning - GT4088 on E85-dual044s.jpg  
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-03-12, 10:40 AM   #11
No Life.
10 Year Member
 
Islander's Avatar
 
Trader Score: (6)

Join Date: Aug 2002
Location: Charlotte NC
Posts: 786
Nice numbers.
__________________
93 SSM widebody S475 build completed! Hooray beer!
Islander is offline   Reply With Quote
Old 05-03-12, 11:27 AM   #12
No Life.
10 Year Member
 
to_slow's Avatar
 
Trader Score: (3)

Join Date: Nov 2001
Location: michigan
Posts: 1,016
Quote:
Originally Posted by Neutron View Post
Sure. It is a CJ motorsports billet aluminum dual pump hanger made for 044's. It is a tight fit.
Nice #s. Where did you source those stainless fuel socks at?


Thanks
to_slow is offline   Reply With Quote
Old 05-03-12, 12:11 PM   #13
Eats, Sleeps, Dreams Rotary
10 Year Member
 
XLR8's Avatar
 
Trader Score: (52)

Join Date: Oct 2001
Location: NJ
Posts: 3,853
Oetiker clamps work well also.

Click the image to open in full size.

http://www.batinc.net/mocal.htm
__________________
94 MB Base... 543whp / 459 ftlbs@ 24psi ......Build Thread
LS7 swap in the works....
XLR8 is offline   Reply With Quote
Old 05-03-12, 12:46 PM   #14
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by to_slow View Post
Nice #s. Where did you source those stainless fuel socks at?


Thanks
Fuel Labs makes the 100 micron stainless socks. When I ordered them they seemed to be a made to order item. 8 week wait. I got the fitting to connect them to the pumps from Jay Racing.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-03-12, 01:57 PM   #15
Chasing numbers
10 Year Member
 
sk8world's Avatar
 
Trader Score: (3)

Join Date: Apr 2001
Location: Alabama
Posts: 4,985
set to 65psi with no vacuum to regulator Why is this?

Those are nice numbers for that turbo.
__________________
BW S482 FMW
sk8world is offline   Reply With Quote
Old 05-03-12, 02:05 PM   #16
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by sk8world View Post
set to 65psi with no vacuum to regulator Why is this?

Those are nice numbers for that turbo.
I wanted enough fuel for over 500whp on E85 which was going to require a high base pressure based on my injectors to archive. There are many benefits to run higher fuel pressure if you are able to do safely. I'D injectors love high pressure and E85 seems to idle well at high pressure also.

I set the base pressure with the vacuum line off the regulator so that the dead times were accurately entered into the datalogit based on the I'D instructions.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-03-12, 03:46 PM   #17
Chasing numbers
10 Year Member
 
sk8world's Avatar
 
Trader Score: (3)

Join Date: Apr 2001
Location: Alabama
Posts: 4,985
Quote:
Originally Posted by Neutron View Post
I wanted enough fuel for over 500whp on E85 which was going to require a high base pressure based on my injectors to archive. There are many benefits to run higher fuel pressure if you are able to do safely. I'D injectors love high pressure and E85 seems to idle well at high pressure also.

I set the base pressure with the vacuum line off the regulator so that the dead times were accurately entered into the datalogit based on the I'D instructions.

(6 x ID 1000cc injectors with base pressure set to 65psi with no vacuum to regulator.)



oh, thought you were saying you ran 65psi always with ":no" vacum to regulator.
__________________
BW S482 FMW
sk8world is offline   Reply With Quote
Old 05-03-12, 04:05 PM   #18
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by sk8world View Post
(6 x ID 1000cc injectors with base pressure set to 65psi with no vacuum to regulator.)



oh, thought you were saying you ran 65psi always with ":no" vacum to regulator.
My bad. Confusing choice of words.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-03-12, 07:59 PM   #19
No Sleep, No Food
10 Year Member
 
arghx's Avatar
 
Trader Score: (3)

Join Date: Aug 2004
Location: cold
Posts: 14,563
Quote:
Originally Posted by mono4lamar View Post
That means he understands timing. I would lower the alarm to 1600, 1650 max. Sounds like you're in pretty good tuning hands though...
E85 runs a lot cooler due to its chemical properties, and should allow the engine to run significantly more timing which then lowers exhaust temperatures further.
arghx is offline   Reply With Quote
Old 05-03-12, 09:07 PM   #20
Rotorite
5 Year Member
 
bigpaparotor's Avatar
 
Trader Score: (9)

Join Date: Aug 2006
Location: FL
Posts: 91
What fuel line is used in your twin pump set up? Also where can I buy it from.
bigpaparotor is offline   Reply With Quote
Old 05-03-12, 10:13 PM   #21
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by bigpaparotor View Post
What fuel line is used in your twin pump set up? Also where can I buy it from.
I got all of my stuff from a local shop in town that has pretty much every fittings and hose type you can think of.

Your easiest source would probably be Summit. Just do a search by fuel type for E85 if that is what you plan to run. I believe there brand is called push tite hose and fittings which is what you would use in the tank.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-04-12, 12:30 PM   #22
BadAss DoItYourselfer
5 Year Member
 
jetlude's Avatar
 
Trader Score: (6)

Join Date: Jun 2008
Location: Paradise
Posts: 567
Disregard this post, was asking for info that was already posted above.
__________________
1993 R1 500 RWHP 25+ psi GT4094R on Pump & Water "Got (Back) Lag and Love it"
jetlude is offline   Reply With Quote
Old 05-04-12, 02:55 PM   #23
All out Freak!
10 Year Member
 
neit_jnf's Avatar
 
Trader Score: (14)

Join Date: Apr 2003
Location: Somewhere in Puerto Rico
Posts: 2,915
neitjnf
Send a message via AIM to neit_jnf Send a message via MSN to neit_jnf Send a message via Yahoo to neit_jnf
ported?
neit_jnf is offline   Reply With Quote
Old 05-04-12, 03:19 PM   #24
Garage Hero
 
mannykiller's Avatar
 
Trader Score: (91)

Join Date: Aug 2009
Location: Quartz Hill
Posts: 3,504
indeed the twin bosch's are a tight squeeze... me too man..
here is my set up
Click the image to open in full size.
__________________

Garage Hero ....To Build, To Inspire, To Drive
mannykiller is offline   Reply With Quote
Old 05-04-12, 03:26 PM   #25
Insane Burnout
 
Trader Score: (4)

Join Date: Jul 2011
Location: AZ
Posts: 287
AZ

Quote:
Originally Posted by neit_jnf View Post
ported?
Yes street port with balanced rotors.
__________________
94 Black R2 - BW S366 - E85 - 607WHP/493WTQ
Neutron is offline   Reply With Quote
Old 05-04-12, 03:26 PM
RX7Club
Mazda RX7




Paid Advertisement


 
 
 
Reply

Tags
100, benefits, e85, fuel, hose, line, lok, micron, push, rx7club, sock, summit, tite, twist, twisttite

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 02:38 AM.
All content Copyright 2007 by Internet Brands, Inc.

Contacts