[Gmecm] Crane Gold self-aligning rockers.

[Mark Romans]

Roger, have you diacomed it to see how much timing the ecm is pulling out at 
WOT and 32 deg total timing?
I had 11.1:1 compression ratio, L98 Heads LT4 Hot cam 1.6 GM Perf Parts 
Roller rockers, headers and superram and was never able to run
more than 23 deg at WOT and still picked up couple of degrees of retard once 
in a while.  I don't think the stock GM head
is that much better  (Combustion chamber design) that I would need 9 degrees 
less timing.
IF you are running a stock tpi set up, it may be acting like a restrictor 
plate and so it doesn't get enough air/fuel to detonate.
How tight do you buzz it?
Mark
----- Original Message ----- 
From: "Roger Danzy" <rdanzy at cox-internet.com>
To: <gmecm at diy-efi.org>
Sent: Thursday, March 24, 2005 7:21 PM
Subject: Re: [Gmecm] Crane Gold self-aligning rockers.


>I have a TPI 350.  The block is pre '79, Lunati hyd roller cam and kit with 
>Crane Gold roller rockers with guide plates, spring seat pressure 130, 
>valve adjustment 0 plus 1 turn.  Compression ratio is 10.9, heads are 
>Edelbrock aluminum, gas is pump 93 octane.  Knock sensor is stock '86 TPI 
>installed dry.  I run 32 total spark advance above 2400 rpm, ignition is 
>stock TPI 87 - 92 with an Accel Super coil.  I only get 8 to 10 knock 
>counts at startup and none while driving unless I really lug the engine in 
>the 1200 to 1600 rpm range in 5th or 6th gear.  I never hear any knocks.
>
>
> ----- Original Message ----- 
> From: "Osku Sneits" <ecm at asdf.org>
> To: <gmecm at diy-efi.org>
> Sent: Thursday, March 24, 2005 5:35 AM
> Subject: [Gmecm] Crane Gold self-aligning rockers.
>
>
>>
>>
>> There has been a whole lot of talk lately with the ECM's knock system and
>> Crane's rockers. I just wondered, if there's anyone else on this list,
>> that successfully runs these rockers without increasing the knock count,
>> besides me?
>>
>> ---
>>
>>
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