Knock sensor, would you run it with THIS setup?
Thread Starter
Pro
Joined: Mar 2004
Posts: 508
Likes: 0
From: N.W. CT
Knock sensor, would you run it with THIS setup?
Getting closer to the point where I will have to burn a chip. I really dont want to install the knock sensor if not needed. I removed all emmisions and ac.
90 l98 six speed vert
Here are my mods and future plan. Its a new engine installing it now.
388 Dart SHP splayed, forged pistons rods crank 9:1 comp
AFR 195s with 1.6 rr 7/16 stud
Comp 280xfi
http://www.compcams.com/Company/CC/c...?csid=209&sb=0
Superram ported with ported base to match, 30lbs injectors for now. (breakin period)
TPIS 58mm t/b
EM headers 1 3/4" 3" dual exhaust with xpipe to a set of stage one flowmaster.
Canton 7qt 250t with melling select 10%
MSD ignition/boost controller with the *** to adjust retard.
I am going to break it in this summer and then hopefully put on 15lbs of boost with a D1 supercharger with meth injection in the winter.
Thanks for taking the time to reply. Walt
Also a pic some pics for you guys
Mahle pistons are very grey in color. I found it strange.
Test fitting intake.
90 l98 six speed vert
Here are my mods and future plan. Its a new engine installing it now.
388 Dart SHP splayed, forged pistons rods crank 9:1 comp
AFR 195s with 1.6 rr 7/16 stud
Comp 280xfi
http://www.compcams.com/Company/CC/c...?csid=209&sb=0
Superram ported with ported base to match, 30lbs injectors for now. (breakin period)
TPIS 58mm t/b
EM headers 1 3/4" 3" dual exhaust with xpipe to a set of stage one flowmaster.
Canton 7qt 250t with melling select 10%
MSD ignition/boost controller with the *** to adjust retard.
I am going to break it in this summer and then hopefully put on 15lbs of boost with a D1 supercharger with meth injection in the winter.
Thanks for taking the time to reply. Walt
Also a pic some pics for you guys
Mahle pistons are very grey in color. I found it strange.
Test fitting intake.
Last edited by Doughboy2k3; Dec 3, 2010 at 12:49 AM.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Why disable something whose sole purpose is to prevent your engine from going poof? With a proper tune, disabling the knock sensor will have zero impact.
FWIW, mine are enabled...
383
lighweight crank
lightweight rods
AFR 195 Competition Eliminator heads
~11:1 compression
cam with 230/236 duration & .622/.624 lift
EM full length headers
bullet cats
lighweight flywheel
slightly north of 500hp at the crank
...and it passed the tail pipe emissions test
FWIW, mine are enabled...
383
lighweight crank
lightweight rods
AFR 195 Competition Eliminator heads
~11:1 compression
cam with 230/236 duration & .622/.624 lift
EM full length headers
bullet cats
lighweight flywheel
slightly north of 500hp at the crank
...and it passed the tail pipe emissions test
Thread Starter
Pro
Joined: Mar 2004
Posts: 508
Likes: 0
From: N.W. CT
I will keep it. I broke the plug while taking it out. Is the plug vette specific of other chevys of that year? Also if I buy a new knock should I go for a GM or aftermarket?
Last edited by Doughboy2k3; Aug 5, 2010 at 12:13 AM.
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
The knock sensors are different between 85-89 and 90-91.
If your system is a mass air , get one for the early cars, if your using a map sensor, get one for a 90-91. But I'd make sre it was for your application....ie, corvette. You don't know what your chip is calibrated for, and if part of the calibration is the tuning of the knock sensor itself..
oh, by the way, push your tool box drawers in before it falls over..................
If your system is a mass air , get one for the early cars, if your using a map sensor, get one for a 90-91. But I'd make sre it was for your application....ie, corvette. You don't know what your chip is calibrated for, and if part of the calibration is the tuning of the knock sensor itself..
oh, by the way, push your tool box drawers in before it falls over..................
Thread Starter
Pro
Joined: Mar 2004
Posts: 508
Likes: 0
From: N.W. CT
The knock sensors are different between 85-89 and 90-91.
If your system is a mass air , get one for the early cars, if your using a map sensor, get one for a 90-91. But I'd make sre it was for your application....ie, corvette. You don't know what your chip is calibrated for, and if part of the calibration is the tuning of the knock sensor itself..
oh, by the way, push your tool box drawers in before it falls over..................
If your system is a mass air , get one for the early cars, if your using a map sensor, get one for a 90-91. But I'd make sre it was for your application....ie, corvette. You don't know what your chip is calibrated for, and if part of the calibration is the tuning of the knock sensor itself..
oh, by the way, push your tool box drawers in before it falls over..................
As far as the drawers go, I like to live on the edge.
Last edited by Doughboy2k3; Aug 5, 2010 at 01:48 AM.
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From: WV
...WW
Last edited by WW7; Aug 5, 2010 at 07:40 PM.
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Joined: Feb 2005
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From: The Motor City
Was wondering how the Knock Sensor will work with a Solid Roller Cam? Need a Re Tune I guess. Pipe
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
For my bracket car, I have run for years without a knock sensor. I'm not sure why, but my car would pick up false knock and retard the timing 13+ degrees and would not recover until the run was over. Needless to say, when you run a tenth slower than your dial in, the race is lost. I knew this was false knock because without the knock sensor, the afr I monitored was good, plugs good with no signs of detonation, conservative timing with race gas. Even running 116 leaded made no difference in knock. Also when I have my motor freshened up every year or two, there are no signs of detonation. Sometimes a combination of forged pistons, agressive camshaft, open exhaust headers and whatever will create false knock. For a street car, leave it on, especially if you are running a blower. My ,.02