Is premature #3 piston failure "normal"? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to   Members

DIY Turbo Discussion greddy on a 1.8? homebrew kit?

LinkBack Thread Tools
Old 01-09-2014, 03:11 PM   #21
Junior Member
Thread Starter
Join Date: Apr 2008
Posts: 100
Total Cats: 6

Originally Posted by Savington View Post
IIRC, cyl3 is indeed the one that runs hottest once you reroute the car. It's not significant, but it's enough (apparently).

I've only ever destroyed one motor due to detonation damage (likely caused by high IATs), and interestingly enough, it also occurred on cylinder #3. Same thing as you - light damage to all the pistons, heavy damage to one. That's anecdotal to the hilt, but still interesting.
Ooh, this is a good data point to have. Thanks.
eyesoreracing is offline   Reply With Quote
Old 01-09-2014, 03:20 PM   #22
Boost Pope
iTrader: (8)
Joe Perez's Avatar
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,326
Total Cats: 1,925

Originally Posted by eyesoreracing View Post
Are 1.6 ECUs supposed to be batch? When we tested it by spinning the cam angle sensor, it fired sequentially. Does it go batch above a certain rpm?
Originally Posted by Oscar View Post
Didn't cali cars have sequential fuel?

California cars had fully sequential (four-channel) injection in 1993 only. All other '90-'93 Miatas in the US had banked (two-channel) injection, where 1/3 and 2/4 are paired together within the INJ harness.

Doesn't really matter, though. Even if this were a '94+ chassis I'd still say it's a mechanical problem rather than an electrical one. If you had an intermittent electrical connection that was causing one cylinder to occasionally misfire, you'd know about it.
Joe Perez is offline   Reply With Quote
Old 01-09-2014, 06:49 PM   #23
Elite Member
iTrader: (21)
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,686
Total Cats: 560

Originally Posted by Leafy View Post
And it turned into some weird furry thing.
Ya don't shave one day, and everyone notices.
rleete is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 58 12-13-2017 10:04 PM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
WTB Stock NB Pistons pdexta WTB 0 09-28-2015 12:18 PM

Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 06:05 PM.