Go Back  S2KI Honda S2000 Forums > General Interest > S2000 Under The Hood
Reload this Page >

Engine Build with Nippon Racing Pistons

S2000 Under The Hood S2000 Technical and Mechanical discussions.

Engine Build with Nippon Racing Pistons

 
Old 02-14-2019, 02:41 PM
  #1  
Thread Starter
 
Join Date: Mar 2008
Location: NOVA
Posts: 1,226
Received 8 Likes on 7 Posts
Default Engine Build with Nippon Racing Pistons

At the suggestion of a board member, I am starting a new thread regarding my build.

[02/24/19: To further narrow my focus, I wanna know if these pistons can hold up long term without scuffing the FRM walls]

My focus with this thread will not be on the general knowledge aspects of engine building; rather, I want to explore ways in which these engines can be rebuilt with readily available parts while maintaining enough simplicity and maintaining the FRM technology as Honda intended. I consider this build a science experiment and a public service. I have come to see the F20/22 as a race engine in the sense that it will require scheduled teardowns at some point after one is opened up. As we all know, only the factory original engines can last 100k+ miles. I want to go against conventional wisdom in an attempt to gain practical knowledge. Criticism is always welcome, as that's how we grow.

That being said, here is the engine that I'm building:

-Factory block bored to 87.25mm with the correct stones and techniques by InlinePro. Applied Quickseat (tungsten disulfide) to the cylinder walls. Installed pistons dry. Applied a very light coat of Total Seal assembly lube to top and 2nd rings.
-Nippon Racing Pistons in 87.25mm. The P/W clearance is set to 0.0013in. Pistons have been coated with APC by Line2Line. The goal here is to reduce the clearance to the absolute allowable minimum to minimize piston rock.
-NPR piston rings without modifying the gaps.
-Re-used the OEM rods, wrist pins. Used a known good F20 crankshaft.
-King XP race bearings.
-Inspected, cleaned, and re-installed oil pump.
-Re-used all timing chain hardware.
-OEM gasket set.

No other modifications have been made to the engine. I will document engine performance and its progress on a mileage basis.





fatjoe10 is offline  
The following users liked this post:
Biccins (02-19-2019)
Old 02-14-2019, 03:43 PM
  #2  
 
S2kAndTheAnt's Avatar
 
Join Date: Feb 2007
Location: 703->781->626
Posts: 1,643
Received 4 Likes on 4 Posts
Default

sub'ed can't wait to see how this turns out!
S2kAndTheAnt is offline  
Old 02-16-2019, 08:08 AM
  #3  
 
Join Date: Sep 2007
Posts: 6,908
Likes: 0
Received 28 Likes on 25 Posts
Default

Thanks
Good luck with your endeavours, subbed.
starchland is online now  
Old 02-16-2019, 02:17 PM
  #4  
 
Slowcrash_101's Avatar
 
Join Date: Jul 2013
Posts: 3,677
Received 68 Likes on 67 Posts
Default

Very cool, do you mind telling us how much the bore n hone job cost?
Slowcrash_101 is offline  
Old 02-16-2019, 02:24 PM
  #5  
 
S2kAndTheAnt's Avatar
 
Join Date: Feb 2007
Location: 703->781->626
Posts: 1,643
Received 4 Likes on 4 Posts
Default

Originally Posted by Slowcrash_101 View Post
Very cool, do you mind telling us how much the bore n hone job cost?
@paid around $500 for my bore/Hone/hontank from inlinePro. I had to ship it to them though.... Fat Joe is local I believe.
S2kAndTheAnt is offline  
Old 02-16-2019, 04:21 PM
  #6  
Thread Starter
 
Join Date: Mar 2008
Location: NOVA
Posts: 1,226
Received 8 Likes on 7 Posts
Default

Installed the new engine, and so far it is running very smoothly. As soon as the coolant system was bled, I went on a drive consisting of progressive pulls to higher and higher RPM until reaching redline. The engine feels a bit tight and unwilling to rev due to the abradable powder coating making the pistons tight, but I expect proper power to return within 1000 miles. Used regular 5w-30 oil for initial fill. The goal is to keep thing simple without fancy anything and see if that's viable.

About the car: It is a year 2000 with 189K miles on it. This car had sat for a number of years and is looking very rough. I intend on using this car as a mule of sorts.

The swap was complete in 27 hours (not including building the new shortblock).

More updates to follow.








fatjoe10 is offline  
Old 02-16-2019, 04:22 PM
  #7  
Thread Starter
 
Join Date: Mar 2008
Location: NOVA
Posts: 1,226
Received 8 Likes on 7 Posts
Default

Originally Posted by Slowcrash_101 View Post
Very cool, do you mind telling us how much the bore n hone job cost?
The rebore was $375. For a hone only, they wanted $180 at last check, but I'm not sure if the prices changed for 2019. Yea, I am local to InlinePro.
fatjoe10 is offline  
Old 02-18-2019, 06:20 PM
  #8  
 
Join Date: May 2009
Posts: 74
Received 0 Likes on 0 Posts
Default

Looks like you did it right, any reason to use aftermarket pistons instead of Honda? Not a criticism just wondering. Thanks for showing us.
Troystaten is offline  
Old 02-19-2019, 01:33 AM
  #9  
Sponsor
 
Join Date: Jan 2019
Posts: 95
Received 1 Like on 1 Post
Default

Originally Posted by Troystaten View Post
Looks like you did it right, any reason to use aftermarket pistons instead of Honda? Not a criticism just wondering. Thanks for showing us.
Ι guess the Xfold price tag! OEM 87.25mm pistons are really expensive. Very nice build fatjoe! I am following with a similar build (87.25mm nippon, FRM hone) but with a stroker crank to push the limits of the pistons and honing job. Let alone things are vastly different in Europe and we had a hard time locating a machine shop perform the hone. I will make a new thread sorry so we have these in parallel. Good luck!
gzob@GearTech is offline  
Old 02-19-2019, 01:40 AM
  #10  
Sponsor
 
Join Date: Jan 2019
Posts: 95
Received 1 Like on 1 Post
Default

One question: why you installed the pistons dry? Was this a suggestion from InlinePro? Was it because of the extra coating?
gzob@GearTech is offline  

Quick Reply: Engine Build with Nippon Racing Pistons


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands