MS----->Vortech FMU ::doh!:: - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Prefabbed Turbo Kits A place to discuss prefabricated turbo kits on the market
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools
Old 05-15-2008, 01:34 PM   #1
Junior Member
Thread Starter
iTrader: (1)
 
Join Date: Oct 2005
Location: Charlotte, NC
Posts: 467
Total Cats: 0
Default MS----->Vortech FMU ::doh!::

With a hpde coming up in June I decided to yank the MS and go back to the stock greddy configuration and mess with the MS afterwards. Well I :

-disconnected the MS(parallel), plugged in the stock ecu
-disconnected the ebc, put back the manual boost controller
-Took out the two wires that were plugged into the AFM serial and ran the AFM unit
-re-installed o2 sensor
-installed vortech fmu
-retard timing back to 6*


Issue: The car idles fine and revs fine but if i give it any gas(load) it wont go anywhere or very slowly. I could put the throttle all the way down in my driveway and it will creep. I rechecked the timing and the timing gun (set to 0). I tried retarding it to 8* and even 10* but still the same issue. I wanted MT's help to see if i miss a step somewhere.


**Sidenote: My headlights wont flip up either
JDMAflac is offline   Reply With Quote
Old 05-15-2008, 01:57 PM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

possibly reversed the fuel lines on the FMU?
Braineack is offline   Reply With Quote
Old 05-15-2008, 02:19 PM   #3
Junior Member
Thread Starter
iTrader: (1)
 
Join Date: Oct 2005
Location: Charlotte, NC
Posts: 467
Total Cats: 0
Default

Took a picture to double check.

IMG_2265.jpg
JDMAflac is offline   Reply With Quote
Old 05-15-2008, 03:03 PM   #4
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Broken crank nose?
Saml01 is offline   Reply With Quote
Old 05-15-2008, 03:10 PM   #5
Junior Member
Thread Starter
iTrader: (1)
 
Join Date: Oct 2005
Location: Charlotte, NC
Posts: 467
Total Cats: 0
Default

That is a very interesting point Sam! I noticed my crank pulley was a bit more wobbly than usual. Vid to come as soon as the heavy rain goes away.

Last edited by JDMAflac; 05-15-2008 at 07:08 PM.
JDMAflac is offline   Reply With Quote
Old 05-15-2008, 10:51 PM   #6
Senior Member
iTrader: (4)
 
Join Date: Aug 2007
Location: Guam (U.S Terr.)
Posts: 786
Total Cats: -2
Default

Quote:
Originally Posted by JDMAflac View Post
Took a picture to double check.

isnt that wrong?

**** me if thats the right way because that means i have mine on backwards.
mike_671 is offline   Reply With Quote
Old 05-15-2008, 11:01 PM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

thats correct.
Braineack is offline   Reply With Quote
Old 05-15-2008, 11:11 PM   #8
Senior Member
iTrader: (4)
 
Join Date: Aug 2007
Location: Guam (U.S Terr.)
Posts: 786
Total Cats: -2
Default

Looks like i better go down stairs and out side and switch that ****. So do you think i harmed anything running it backwards?
mike_671 is offline   Reply With Quote
Old 05-15-2008, 11:37 PM   #9
Junior Member
Thread Starter
iTrader: (1)
 
Join Date: Oct 2005
Location: Charlotte, NC
Posts: 467
Total Cats: 0
Default

Quote:
Originally Posted by Saml01 View Post
Broken crank nose?
Did some searching over m.net on this issue. Would a compression/leakdown test be able to tell me if my crank sheared off? Better yet, would my motor even run?
JDMAflac is offline   Reply With Quote
Old 05-16-2008, 12:18 AM   #10
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago (Over two miles from Wrigley Field. Fuck the Cubs. Fuck them in their smarmy goat-hole.)
Posts: 26,317
Total Cats: 1,915
Default

It's my understanding that the "benign" failure mode is for the pulley to rotate on the crank without anything actually falling off. If that's the case, it would run but your timing would be very retarded.

One quick check is to pop out the #1 plug and run a dowel down into the hole. As you rotate the crank by hand, the dowel should apex just as the timing mark approaches "T".
Joe Perez is offline   Reply With Quote
Old 05-16-2008, 12:36 AM   #11
Elite Member
iTrader: (3)
 
Mach929's Avatar
 
Join Date: Oct 2004
Location: lansdale PA
Posts: 2,500
Total Cats: 0
Default

you've most likely got something stupid going on, you're headlights not working being the red flag, check all fuses and connections
Mach929 is offline   Reply With Quote
Old 05-16-2008, 12:52 AM   #12
AFM Crusader
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

The Vortec will operate with the hoses in either position; as long as it is connected to the return to tank and the FPR.
olderguy is offline   Reply With Quote
Old 05-16-2008, 01:37 AM   #13
Senior Member
iTrader: (1)
 
Join Date: Sep 2006
Location: Hong Kong
Posts: 523
Total Cats: 0
Default

OG.. are u still running the FMU vortech with 305cc injectors on your set up?
I have been wanting to delete mine, to see how far 305cc with 190HP can feed 8-10psi boost.
Mimime is offline   Reply With Quote
Old 05-16-2008, 07:21 AM   #14
AFM Crusader
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by Mimime View Post
OG.. are u still running the FMU vortech with 305cc injectors on your set up?
I have been wanting to delete mine, to see how far 305cc with 190HP can feed 8-10psi boost.
Yes, still running the Vortec. Duty cycle too high without it @14psi. You should be close @ 8-10 but approach carefully.
olderguy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
WTB Vortech FMU: So Cal pref FHS WTB 0 03-11-2007 07:09 PM
Begi 2025 FMU tuning shinobix DIY Turbo Discussion 23 12-20-2006 12:12 PM
WTB: Vortech FMU 8:1 disc iWeasel410 WTB 1 11-30-2006 11:50 PM
FMU Tweak Braineack DIY Turbo Discussion 29 11-11-2006 08:52 PM
FS: Flyin Miata MBC, Gauges, Vortech FMU, BEGi FMU Ben Miata parts for sale/trade 4 11-02-2006 02:56 PM


Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:56 AM.