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Author Topic: Low boost knock  (Read 5098 times)

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Offline larrym

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Low boost knock
« Reply #15 on: March 21 2015, 12:02:25 PM »
It's there in the lower rpms much like the boost it will disappear when you wind it up.
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86 white T type with t tops and blackout trim. 60lb injectors Gen 2 with Extender Chip TR6 ignition 212/206 roller cam Turbonetics BB CPT 61 CAS V4 Intercooler Cobbled together Alky Injection 4 inch MAF pipe with integral sensor
2800 stall lots of fun with a little 6 banger!
Best ET 11.36

Offline larrym

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Low boost knock
« Reply #16 on: March 21 2015, 12:07:17 PM »
When he inspected the motor 1 rod had excessive side clearance
I told him not to look just bring me back the pieces when it was done.
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86 white T type with t tops and blackout trim. 60lb injectors Gen 2 with Extender Chip TR6 ignition 212/206 roller cam Turbonetics BB CPT 61 CAS V4 Intercooler Cobbled together Alky Injection 4 inch MAF pipe with integral sensor
2800 stall lots of fun with a little 6 banger!
Best ET 11.36

Offline Steve Wood

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Re: Low boost knock
« Reply #17 on: March 21 2015, 01:15:12 PM »
I have seen that with valve train noise more than once....I suspect you are correct, the ecm is hearing a noise within the frequency range that it considers to be detonation and is pulling timing.
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Offline 278CIKILLER

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Re: Low boost knock
« Reply #18 on: March 21 2015, 02:27:28 PM »
I have a real nice well built motor for sale if need be , This is a drop in and go.
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Offline larrym

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Low boost knock
« Reply #19 on: March 21 2015, 02:45:13 PM »
His motor is at the machinist thanks for the offer. I just installed mine and told him he could run my old one till his is ready.
The motor he had in the car lasted 95 miles.... This one has been beat to death bored .030 crank is .010 under on the mains .030 on the rods owes me nothing and is responsible for my addiction and my 11:43 pass

It's spun to 6000 rpm many times but it just kept going.
Figured My buddy "no lift McLoud" could try and finish it I couldn't !
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86 white T type with t tops and blackout trim. 60lb injectors Gen 2 with Extender Chip TR6 ignition 212/206 roller cam Turbonetics BB CPT 61 CAS V4 Intercooler Cobbled together Alky Injection 4 inch MAF pipe with integral sensor
2800 stall lots of fun with a little 6 banger!
Best ET 11.36

Offline Scoobum

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Re: Low boost knock
« Reply #20 on: March 22 2015, 08:05:33 AM »
Is the knock sensor torqued correctly? Yeah I know, I'm looking for an easy answer. :)
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