2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

ditch my 7? rebuild? or JDM motor...

Thread Tools
 
Search this Thread
 
Old 07-22-07, 12:03 AM
  #1  
i love my rice!!!

Thread Starter
iTrader: (5)
 
chinkst3r's Avatar
 
Join Date: Apr 2006
Location: Anaheim, CA
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
Unhappy ditch my 7? rebuild? or JDM motor...

So here's the story...

so i bought my motor back in novemberish of last year, its an s5 t2 with 60k on the motor... i was chillen at yoshiya's shop today and decided to go to 7-11, was on the way there, and the engine made a funky noise, and the engine was acting up alot ... so i drove it back to the shop, and we found a vacuum leak, but then decided to do a compression test... i was a bit hesitant, but yoshiya decided to just get it over with... and the results... i got 5.7 in the front, and rear was so low that it couldnt even read the compression...

the past....

Got the motor and did a compression test with a shitty piston compression tester, got 60 in the front, and 30 in the back, but i figured it was the compression tester, and figured it ran without smoke so i figured it was fine...

so the question...

should i just sell the whole thing, as is... get some money instead of spend more money... pay to get it rebuilt... or just find a JDM motor with good compression...?
Old 07-22-07, 12:16 AM
  #2  
Rotary Enthusiast

 
imloggedin's Avatar
 
Join Date: Aug 2002
Location: MO
Posts: 850
Likes: 0
Received 0 Likes on 0 Posts
and you didnt notice the thing running bad or being really slow???
Old 07-22-07, 12:46 AM
  #3  
Mechanical Engineering

 
capn's Avatar
 
Join Date: Jun 2004
Location: South Carolina
Posts: 1,618
Received 25 Likes on 16 Posts
how does the rest of the car look?


as most people will tell you JDM motors are really a hit and miss item. I say rebuild, then you are garunteed a solid motor and you will be happy you did.
Old 07-23-07, 12:42 AM
  #4  
i love my rice!!!

Thread Starter
iTrader: (5)
 
chinkst3r's Avatar
 
Join Date: Apr 2006
Location: Anaheim, CA
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
the motor doesnt run that bad... my friend has an s4 and it dint seem that much different in the lower rpms... but now that u mention it, it does seem kinda slow even at boost, but sometimes its rediculously fast... iono...

the car has s5 full conversion, with s4 sport wing... GP sports kit, and Racing beat Full turbo back exhaust... hks ssqv bov... sport max 962's 18x7.5, 9.5... hks hypermax D coilovers... short shifter... iono and some other little things like a clifford remote start and such...
Old 07-23-07, 12:49 AM
  #5  
garageRE

iTrader: (5)
 
smokie's Avatar
 
Join Date: Jun 2006
Location: Compton
Posts: 1,041
Likes: 0
Received 0 Likes on 0 Posts
i think you should rebuild yea its going to cost you some money but in the long run its worth it and i see your in anaheim i know a good shop that built mine for a good deal and i had to replace some things so i know it will be cheaper for you.......but if you have to sell it then do that and just save up and buy another one but in the long run its better if you rebuild it
Old 07-23-07, 01:01 AM
  #6  
Rotary Enthusiast
 
initial D is REAL!'s Avatar
 
Join Date: Mar 2007
Location: Pasadena
Posts: 1,485
Likes: 0
Received 0 Likes on 0 Posts
Sorry to hear about that. Tear apart the old one and see what is needed. Hopefuly you dont need too many parts. Good luck
Old 07-23-07, 01:20 AM
  #7  
Saiga-12 Power!

iTrader: (4)
 
Juiceh's Avatar
 
Join Date: Oct 2004
Location: N of Chicago
Posts: 4,384
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by chinkst3r
the motor doesnt run that bad... my friend has an s4 and it dint seem that much different in the lower rpms... but now that u mention it, it does seem kinda slow even at boost, but sometimes its rediculously fast... iono...
You know, it is a bizarre phenomenon that has been experienced but many people on this forum. Many people have reported that their engines pulled harder than usual and ran awesome right before they blow a seal or something. If I were you I'd get it rebuilt. Hell, I'm putting in a fresh engine just because mine is 90psi(front) 70psi(rear). I'd rather get it done now than have it let go and take my turbo with it!
Old 07-23-07, 01:31 AM
  #8  
Cruisin in the whip
 
Meatkibble's Avatar
 
Join Date: Feb 2007
Location: San diego
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
rebuild it...and they will come
Old 07-23-07, 10:25 AM
  #9  
i love my rice!!!

Thread Starter
iTrader: (5)
 
chinkst3r's Avatar
 
Join Date: Apr 2006
Location: Anaheim, CA
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
haha, sounds good i think ima rebuild it but ima wait cause i got my laser surgery coming up and school's bout to start... so i gotta save up...

hey smokie where is that shop? im taking it to yoshiya and ryosuke at neptune speed... bout the only ones i trust with my car... but im curious to hear theres a rx shop in anaheim...?
Old 07-23-07, 02:58 PM
  #10  
Full Member
 
andersonvann's Avatar
 
Join Date: Feb 2007
Location: So-cal
Posts: 200
Likes: 0
Received 0 Likes on 0 Posts
wow, when was this? sad to hear man, the motor used to be badass the last time i saw it, gl with the car man
Old 07-23-07, 03:02 PM
  #11  
Manual Rack

iTrader: (50)
 
FelixIsGod29X's Avatar
 
Join Date: Aug 2005
Location: Wanaque NJ
Posts: 3,652
Likes: 0
Received 1 Like on 1 Post
If its an S5 T2 with really only 60k, you might as well tear it apart and see whats up with everything. You said sometimes it feels slow and sometimes it feels fast, could just be something stupid. S5 engines are slightly better than s4 in many ways, so if wear on everything isn't to bad then keep it and rebuild. Take your time and measure everything more than once, dont for get to clean the ever lasting hell out of everything. You should possibly consider getting your turbo rebuilt so you wont have to do it in the future. Stock turbo rebuilt kits are on the cheap side so i hear. Good luck and have fun with it. - Nick
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SakeBomb Garage
Vendor Classifieds
5
08-09-18 05:54 PM



Quick Reply: ditch my 7? rebuild? or JDM motor...



All times are GMT -5. The time now is 01:27 AM.