Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
The Terminator
Engine/Tuning
is this a fuel issue? or an air issue? how should i diagnose
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="P49Y-CY" data-source="post: 16299543" data-attributes="member: 10216"><p>finally got around to doing a compression test on it. funny thing is in all the years i have been working on cars, i have never actually done one before lol. it is pretty cool and now i'm curious what my other cars' readings will look like. i did this on a cold engine, is that okay? (some videos and instructions say to do it on a warm engine.) i have only done a dry test so far.</p><p></p><p>#1 - 170 psi (highest reading)</p><p>#2 - 150 (-12%)</p><p>#3 - 162 (-5%)</p><p>#4 - 157 (-8%)</p><p>#5 - 147 (-14%)</p><p>#6 - 141 (-17%)</p><p>#7 - 150 (-12%)</p><p>#8 - 165 (-3%)</p><p></p><p>from what i have read, even cylinder #6 is not completely out of spec even though it is 29 psi less than maximum (83%). i have read that the maximum variance should be no more than 25%. it does looks like #5 and #6 are hurting a little bit though.</p><p></p><p>i don't think any of this would cause the car to stall like it has. it is 30 minutes or so every time - almost like clockwork! i even loaded the stock back on it but still the same thing. the exhaust smells really rich when it is idling, but all the plugs look fine. i am thinking maybe the bassani cats are clogged and i should put the stock midpipe back on.</p><p></p><p>i am still practicing datalogging too. the last one i did showed numbers that didn't make any sense at all! for example battery volts were like 0.4375. i think i need to get more familiar with how to do it.</p></blockquote><p></p>
[QUOTE="P49Y-CY, post: 16299543, member: 10216"] finally got around to doing a compression test on it. funny thing is in all the years i have been working on cars, i have never actually done one before lol. it is pretty cool and now i'm curious what my other cars' readings will look like. i did this on a cold engine, is that okay? (some videos and instructions say to do it on a warm engine.) i have only done a dry test so far. #1 - 170 psi (highest reading) #2 - 150 (-12%) #3 - 162 (-5%) #4 - 157 (-8%) #5 - 147 (-14%) #6 - 141 (-17%) #7 - 150 (-12%) #8 - 165 (-3%) from what i have read, even cylinder #6 is not completely out of spec even though it is 29 psi less than maximum (83%). i have read that the maximum variance should be no more than 25%. it does looks like #5 and #6 are hurting a little bit though. i don't think any of this would cause the car to stall like it has. it is 30 minutes or so every time - almost like clockwork! i even loaded the stock back on it but still the same thing. the exhaust smells really rich when it is idling, but all the plugs look fine. i am thinking maybe the bassani cats are clogged and i should put the stock midpipe back on. i am still practicing datalogging too. the last one i did showed numbers that didn't make any sense at all! for example battery volts were like 0.4375. i think i need to get more familiar with how to do it. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Engine/Tuning
is this a fuel issue? or an air issue? how should i diagnose
Top