Notices
Engine & Drivetrain VQ Power and Delivery

Need help 8.8:1 and wont start

Thread Tools
 
Search this Thread
 
Old Sep 4, 2007 | 08:50 PM
  #1  
alltel350z's Avatar
alltel350z
Thread Starter
Registered User
iTrader: (2)
 
Joined: Aug 2007
Posts: 142
Likes: 0
From: mobile,al
Default Need help 8.8:1 and wont start

Ok heres whats going on, I hope s/o can help.
So my first post (so nissan wont warrenty my Z) for the full story.

Well nissan finally put the engine together and in the car.
Problem is from what I understand, it starts but will not stay running. They told me it started, smoked a lot and died.
It has no form of forced induction right now and has stock computer.

The checked the timing a few times and said it's dead on. It has fuel, spark, and air. The engine is 8.8:1 compression. Nissan did a compression test and it came back with 130psi on 4 cyl, 135psi, and 145psi in the other.
I was told from a few tunner/350z specialist that it should start and idel fine, it just wont have much power.

The mechanic says that it will not run with no turbo on it, at idle the turbo really is not doing anything then is it?

Any one know of a Z with such low compression that has been driven or even started the engine with no forced induction on it?

Any idea on what could be wrong or something it needs to be drivable?

Thanks for any info
Reply
Old Sep 5, 2007 | 03:31 AM
  #2  
Jay'Z's Avatar
Jay'Z
Banned
iTrader: (118)
 
Joined: Apr 2005
Posts: 10,944
Likes: 1
From: Carbon Fiber, TX
Default

If it starts and dies there must be something else going on.. Have you checked for vacuum leaks.. To simply say a low compression motor wont start without turbos is plain stupid and that is to be expected from most Nissan Technicians. Yes it will have less power so you may need to have the idle raised somehow to keep it running and that could be your problem being that you only have the stock ecu controlling it.. You shouldnt have taken it to a Nissan Dealer because they are all FTL.... Oh, unless its West Covin or Performance Nissan.
Reply
Old Sep 5, 2007 | 07:47 AM
  #3  
Sharif@Forged's Avatar
Sharif@Forged
Sponsor
Forged Performance
iTrader: (92)
 
Joined: Dec 2003
Posts: 13,733
Likes: 1
From: Marietta, GA
Default

+1....

the car should easily idle and start with stock injectors, stock fuel pump, and simply a low comp shortblock. If they can't figure it out, we can arrange to bring the car here, and we'll get it working for you.
Reply
Old Sep 12, 2007 | 06:05 AM
  #4  
alltel350z's Avatar
alltel350z
Thread Starter
Registered User
iTrader: (2)
 
Joined: Aug 2007
Posts: 142
Likes: 0
From: mobile,al
Default

thanks guys. nissan approved for another $2500 in labor to tear the engine down and inspect the block. I am going to see if they can put that towards the bill and give me my car back. I just hope there is nothing major wrong with it. I have a utec on the way as well.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MM'08_350Z
VQ35HR
225
Apr 22, 2021 09:42 PM
sherm
Engine & Drivetrain
15
Apr 11, 2020 05:21 PM
3vilbunny
Exterior & Interior
24
Jul 18, 2017 05:10 PM
Dymsi
Exterior & Interior
14
Sep 29, 2015 11:32 AM




All times are GMT -8. The time now is 02:08 PM.