D16Y8 turbo on 8lbs - Honda-Tech - Honda Forum Discussion

Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

D16Y8 turbo on 8lbs

Reply

 
 
 
Old 03-10-2018, 04:53 PM
  #1  
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2018
Posts: 5
Default D16Y8 turbo on 8lbs

I have a D16Y8 I bought some what boosted. I finished the project and had the car tuned with hondata. Car runs just fine with 201k on it. Itís a stock block.

set up
Kit details/TURBO
TD04 Greddy turbo on 8PSI
Cx racing FMIC/BOV
walbro fuel pump
550 RC injectors
FPR
5200rpm 2-step
exedy stg 1 clutch
Y8 intake manifold
straight pipe 2" exhaust
P05 ECU chipped and dyno tuned

Did a compression test and came out around 130 and 135 across the 4. Now I donít know if my tuner made my compression low for boost error to happen or if my block is going? Like I said, I have all power and no sign of weakness except I keep over flowing my coolant after strong pulls...
G-MaN-D16Y8 is offline  
Reply With Quote
Old 03-12-2018, 03:32 AM
  #2  
O.G. triple O.G.
 
NVturbo's Avatar
 
Join Date: Dec 2003
Location: Noeth Cacolac, USA
Posts: 4,095
Default Re: D16Y8 turbo on 8lbs

You can't just "lower" the compression ratio by just a flip of a switch or from a tuning program. Sounds like you didn't even open up the motor to upgrade anything. Upgrade the old radiator as well as a new cap.
NVturbo is online now  
Reply With Quote
Old 03-12-2018, 04:57 AM
  #3  
Honda-Tech Member
 
CandyRedRC46's Avatar
 
Join Date: Jan 2014
Posts: 991
Default Re: D16Y8 turbo on 8lbs

Sounds like this 1 post wonder might need to upload a new head gasket tune.
CandyRedRC46 is offline  
Reply With Quote
Old 03-13-2018, 02:57 AM
  #4  
O.G. triple O.G.
 
NVturbo's Avatar
 
Join Date: Dec 2003
Location: Noeth Cacolac, USA
Posts: 4,095
Default Re: D16Y8 turbo on 8lbs

haha...
replaced valve cover gasket = FULLY BUILT
NVturbo is online now  
Reply With Quote
Old 03-13-2018, 06:34 AM
  #5  
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2018
Posts: 5
Default Re: D16Y8 turbo on 8lbs

I have replaced the head gasket, valve cover gasket, and intake manifold gasket. The manifold gasket keeps cracking or leaking so I need to find a performance one. Iím just riding the engine till I have all parts for a full rebuild. The engine seems like it just doesnít want to be done yet.
G-MaN-D16Y8 is offline  
Reply With Quote
Old 03-13-2018, 07:07 AM
  #6  
Loves Tossing Salad
 
09chaplak's Avatar
 
Join Date: Mar 2014
Location: Uh, uh DIPSY
Posts: 899
Default Re: D16Y8 turbo on 8lbs

Head gasket keeps taking a dump, says the engine has more in it.
09chaplak is online now  
Reply With Quote
Old 03-13-2018, 07:22 AM
  #7  
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2018
Posts: 5
Default Re: D16Y8 turbo on 8lbs

Old head gasket was fine just replaced it when I took the head off.
G-MaN-D16Y8 is offline  
Reply With Quote
Old 03-13-2018, 08:40 AM
  #8  
Honda-Tech Member
 
CandyRedRC46's Avatar
 
Join Date: Jan 2014
Posts: 991
Default Re: D16Y8 turbo on 8lbs

You're pushing coolant on strong pulls. Either:

Your tuner sucks.
Your head gasket installer sucks.
Need better head studs (doubt it. maybe the oem ones have been through too many torque cycles or were torqued town incorrectly....)
The block/head mating surface isn't true.

Are those hot/cold or wet/dry compression results?
CandyRedRC46 is offline  
Reply With Quote
Old 03-13-2018, 09:48 AM
  #9  
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2018
Posts: 5
Default Re: D16Y8 turbo on 8lbs

Cold and dry compression results! It was set to an aggressive tune. At idle Iím around 13 on air/fuel so kinda rich side.
G-MaN-D16Y8 is offline  
Reply With Quote
Old 03-13-2018, 10:09 AM
  #10  
Honda-Tech Member
 
CandyRedRC46's Avatar
 
Join Date: Jan 2014
Posts: 991
Default Re: D16Y8 turbo on 8lbs

Supposedly 185psi and up is optimal. So either:

Test was done incorrectly.
Engine is worn out. (would be kind of weird for numbers to be so even in a worn out or hurt engine).
Have an aggressive cam with a lot of overlap.
Have low compression internals or a very thick head gasket.
CandyRedRC46 is offline  
Reply With Quote
Old 03-15-2018, 04:33 PM
  #11  
Honda-Tech Member
 
Randolph's Avatar
 
Join Date: Dec 2009
Location: Long Island, New York
Posts: 84
Default Re: D16Y8 turbo on 8lbs

Subscribed lol
Randolph is offline  
Reply With Quote
Old 03-15-2018, 07:04 PM
  #12  
Honda-Tech Member
Thread Starter
 
Join Date: Mar 2018
Posts: 5
Default Re: D16Y8 turbo on 8lbs

Found smells of exhaust in the coolant, so time for HG replacement with arp studs. See if that stops the head lift and Iím going with a dual core aluminum radiator. My last radiator wasnít holding pressure I noticed too.
G-MaN-D16Y8 is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Live*JDM
Classifieds: Forced Induction
9
03-03-2007 12:17 PM
Live*JDM
Southern California (Sales)
0
02-08-2007 06:13 PM
Live*JDM
Northern California (Sales)
0
02-08-2007 06:12 PM
jaydmjunkie
Forced Induction
9
08-30-2005 03:44 PM
shivic
Forced Induction
13
03-06-2003 08:18 PM


Thread Tools
Search this Thread
Quick Reply: D16Y8 turbo on 8lbs


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: