My compression numbers - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to   Members

Engine Performance This section is for discussion on all engine building related questions. KMiata

LinkBack Thread Tools Search this Thread
Old 07-06-2009, 02:01 PM   #1
Elite Member
Thread Starter
iTrader: (1)
NA6C-Guy's Avatar
Join Date: Feb 2008
Location: Birmingham Alabama
Posts: 8,038
Total Cats: 39
Default My compression numbers

I finally got around to checking them, but they are all a bit "low" for a freshly rebuilt engine w/ ~8000 miles. I was expecting to see at least upper 180's. I'm assuming it was my crosshatching skills (or lack of) that caused them to all be a bit low. At least they are all even at 180 +/- 3psi. It could also be my piece of **** tester. How do you even tighten up the damn thing to the spark plug holes? I just tighten it by twisting the hose as much as I can without kinking it.

Its just sort of a let down since my old numbers, at least 1 and 4 were around 185, and that was at 110k miles. I guess 180 is still good, especially since they are all even. I think I had a question originally to go with this thread, but now I forget what I was going to ask...
NA6C-Guy is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 07:58 AM
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 52 08-28-2016 04:18 AM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 07:18 PM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 10:59 PM
Mystery Engine Trouble. Halp,! vehicular General Miata Chat 12 09-14-2015 03:17 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 11:52 AM.