So I burned up a stock exhaust valve...
The car didn't go lean according to my wideband, but got a cylinder misfire code..
It was #3...
I was running about 16PSI on a 16G hahn kit...
Too much heat for the valve?
Too much pressure for the 16G?
Machine shop cut exhaust valve too thin when doing the valve job?
Plugs got too hot? I'm not running any colder plugs...
What do you guys think?
you should be running a colder plug. Could it have been the reason why? possibly. could it have been the machine shop's installation procedure and tweaking of the valves? possibly.
-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party
I'm just really scared that I'm going to upgrade to the inconel ones and colder plugs and something else is going to happen...
the only thing I can think of is that its gotta be the plugs man,most people use srt4 plugs,not sure if theyre 1 step or 2 steps colder..hope i helped a little
ngk tr55IX part number for 2 step colder plugs
8 psi with m62 and IAT under 100
i would be pissed if that happened to me. How that 16 g stayin on 16 psi? does it spike about 19 20 and hold 16?? i think i lasted 2 weeks at that and then blasted it up into the 20s
BOOSTED BABY wrote:i would be pissed if that happened to me. How that 16 g stayin on 16 psi? does it spike about 19 20 and hold 16?? i think i lasted 2 weeks at that and then blasted it up into the 20s
Well with the profec b v2 it holds right where I adjust it...
Cody Star wrote:ngk tr55IX part number for 2 step colder plugs
FALSE!
NGK TR55 Spark Plugs, Stock heat range, gapped at .050
NGK TR5 Spark Plugs, Stock heat range, gapped at .035
NGK TR6 Spark Plugs, One heat range colder than stock, gapped at .035
NGK Racing R5724-8 Spark Plugs, three heat ranges colder than stock, gapped at .032
2001 Olds Alero (LD9)
650 whp / 543 ft-lb
@turboalero
[ion wrote: C2]Cody Star wrote:ngk tr55IX part number for 2 step colder plugs
FALSE!
NGK TR55 Spark Plugs, Stock heat range, gapped at .050
NGK TR5 Spark Plugs, Stock heat range, gapped at .035
NGK TR6 Spark Plugs, One heat range colder than stock, gapped at .035
NGK Racing R5724-8 Spark Plugs, three heat ranges colder than stock, gapped at .032
you do know he is talking about an ecotec motor, correct?
-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party
well machine shop is done...
$637 for GM racing intake and exhaust valves installed...
boosted baby, your running 20+ psi on a 16g?
do you have stock valves?
Whats too high for a 16g?
im maxin a 16 g out with a stock head baby
the higher i turn it the more of a beast it becomes. well if i set it on a boost and get on it , it holds that pressure and goes down and stays about 2-3 psi lower then what i have it set 2. so latley the way i have it set to spike 26 and hold right at 23-24. But since i dont want to boost my crankcase i've made a very very sad decision to park the cavalier untill iget a diffferent intake mani. sad sad.....good times tho i will miss them!
