Any hints on tuning for a big cam?

[Bruce Plecan]

-----Original Message-----
From: green <green at nlenx.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Sunday, February 14, 1999 2:38 PM
Subject: Re: Any hints on tuning for a big cam?


Wouldn't 0352+0353, be good choises for where to start?.
I haven't tried it, but looks good.
Bruce


>|The concept has me wetting my pants.. <<be right back>>
>|Is there something in a 7730 V8 chip that allows you to ignore
>|map when throttle is closed, and just substitute another
>|table or value???   That would be great!
>|Anyone for a radical roller with a GM ECM?
>|TIA
>I have a 222/214, .515/.494 cam in my syclone ...50lb inj...
>it don't idle too nice..but i didn't have much time to play with it yet.
In
>the speed density ecm's..there usually isn't too much that allows for TPS
vs
>fueling (other than PE enable stuff).  I've got a few ideas...open loop (or
>nearly open loop - adjust the hi/lo of 02 cycling) at closed throttle,
>messing with IAC parameters might help a bit too.  I'd like to try the
>timing idea someone threw out too.
>Brian G.
>syclone 160
>STG
>|Mike V
>|>  > First up the map will read high as the vacuum gets killed. The table
>|>  > there would be sure to need adjustment.
>|>  definitely
>|>  if you use TPS and RPM ignoring MAP you may be able to do better