Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Shark tuning next Sat in Tampa !

Thread Tools
 
Search this Thread
 
Old 03-16-2008, 11:23 PM
  #46  
Kevin Michael
Rocket Pilot
Rennlist Member
 
Kevin Michael's Avatar
 
Join Date: Apr 2004
Location: gettysburg pa.
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
Default

Tampa, New MAF. Fmu is installed, but I have always suspected it. Maybe I should try to borrow one and see.
Old 03-16-2008, 11:28 PM
  #47  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

I just got my Lm-1 and Lm-3 and it really shows whats going on stops the guessing. I picked both up at Summit for $395.00 $250.00 off list. Have you placed a DVM on your LH to measure voltage of the Maf could be a ok way to see if it's in line voltage wise.
Old 03-16-2008, 11:31 PM
  #48  
Kevin Michael
Rocket Pilot
Rennlist Member
 
Kevin Michael's Avatar
 
Join Date: Apr 2004
Location: gettysburg pa.
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
Default

Did that as well. Hooked up DVM, read voltage and blew into MAF and got the specified voltage changes.
Old 03-16-2008, 11:40 PM
  #49  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

Have you checked your fuel pressure I added a long hose and tied it to my mirror and went for a drive. I'm wondering if your Fmu is adding too much pressure when it's not required. What size disk do you have in it?
Old 03-16-2008, 11:44 PM
  #50  
Kevin Michael
Rocket Pilot
Rennlist Member
 
Kevin Michael's Avatar
 
Join Date: Apr 2004
Location: gettysburg pa.
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
Default

12/1 ratio
Old 03-16-2008, 11:56 PM
  #51  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

Have you talked to Tim about this, mine is a 9 to 1.
I wonder if it is worth the time to change disks and see what would happen!
Old 03-16-2008, 11:57 PM
  #52  
Shane
Sharkaholic
Lifetime Rennlist
Member
 
Shane's Avatar
 
Join Date: May 2002
Location: Rochester, WA
Posts: 5,162
Received 2 Likes on 2 Posts
Default

So Tampa while you were tuning your supershark what kind of hp & tq were you seeing?
Old 03-17-2008, 12:02 AM
  #53  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

Never got it to the Dyno
Old 03-17-2008, 05:59 AM
  #54  
Kevin Michael
Rocket Pilot
Rennlist Member
 
Kevin Michael's Avatar
 
Join Date: Apr 2004
Location: gettysburg pa.
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
Default

Come to think of it, I don't know what the disk ratio is Tampa. The unit I got was a used one Tim had That I took so I didn't have to wait for a new one. I am assuming it is the same he puts with all the kits.
Old 03-17-2008, 12:27 PM
  #55  
Tony
Addict
Lifetime Rennlist
Member
 
Tony's Avatar
 
Join Date: May 2001
Location: Las Vegas
Posts: 14,676
Received 584 Likes on 305 Posts
Default

Kevin, FYI...im running 42s now for nearly a week. No issuse at start, idle, cruise..or some initial WOT runs...mixture is fat, but definitley tuneable. Fuel pressure is 60psi under boost(10-11PSI)...50 at idle...Super MAF and an 044 pump...for reference.
Old 03-17-2008, 01:04 PM
  #56  
Tampa 928s
Race Car
Thread Starter
 
Tampa 928s's Avatar
 
Join Date: Dec 2006
Location: Tampa Florida
Posts: 4,089
Likes: 0
Received 6 Likes on 5 Posts
Default

I'm curious what is going on with his car!
I would change the chips as a start unless he has the stock chips installed and they have never been modified.
Seems like everything else has been addressed.

My trouble shooting would include:
MAF
INJ
CHIPS

Shot in the dark:
Restriction on intake?
Iac sticking
Wrong vacuum line connections to or Stuck Fmu
Old 03-17-2008, 01:36 PM
  #57  
Fabio421
Man of many SIGs
Rennlist Member
 
Fabio421's Avatar
 
Join Date: May 2005
Location: Florida, USA
Posts: 8,722
Received 11 Likes on 5 Posts
Default

I just want to thank Tampa928s for hosting us on Sat. I had a good time seeing everyone and I hope we can continue to get together fairly often. The BBQ was awesome. Please thanks Mrs. Tampa928s for me as well.
Old 03-17-2008, 06:52 PM
  #58  
Kevin Michael
Rocket Pilot
Rennlist Member
 
Kevin Michael's Avatar
 
Join Date: Apr 2004
Location: gettysburg pa.
Posts: 3,298
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Tampa 928s
I'm curious what is going on with his car!
I would change the chips as a start unless he has the stock chips installed and they have never been modified.
Seems like everything else has been addressed.

My trouble shooting would include:
MAF
INJ
CHIPS

Shot in the dark:
Restriction on intake?
Iac sticking
Wrong vacuum line connections to or Stuck Fmu
Tampa, The more I think about it the more I suspect that freakin' FMU! The ONLY part I have not replaced. As far as chips go, Rich Andrade installed new 88^ chips in my new ECU.(So I could run the Speake TOOL).
Kevin



Quick Reply: Shark tuning next Sat in Tampa !



All times are GMT -3. The time now is 07:12 AM.