That would more than likely affect the O2 sensor, or lack thereof, which
would affect the rate of fuel of the injectors because the computer uses the
O2 sensor to determine ideal A/F mixtures. Of course if you keep your foot
in it, that's a moot point as well.
Ron
00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile (URL follows)
http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Sterling Dedic
Sent: Sunday, July 22, 2001 3:30 PM
To: dakota-truck@buffnet.net
Subject: Re: DML: timing ?
The lack of a cat could also be messing up the computer which ifI'm
not mistaken controls the iming.
Sterling
On Sun, 22 Jul 2001 16:55:56 EDT, dakota-truck@buffnet.net wrote:
> Hey All,
>
> As you all know I have installed the Hughes 1418 cam and
> sprnigs/reatainers/1.6 rockers/ported intake and TB.
> I started her up and had backfiring probs which were stopped by
resetting
> the distributor to the cylinder #1 mark at TDC. That stopped he
backfires,
> however the truck is still running on less power than before the mods. It
> idles right where it should (with the hot cam) at 750 RPM. I think the
timing
> may still be off and was wondering if it is something I can check with a
> timing light or not?
>
> I used to time my old hot rods by ear with good results but I wasn't sure
if
> the computer would cause that method to be ineffective.
>
> Also if anyone knows what else could be causing the power loss send me
your
> ideas. I don't think its an air leak because it idles fine and doesnt
> backfire.
> Could i be the fuel mixture? how might I check this?
>
> here are my mods
>
> 95 cc 318 auto, transgo shift kit, HE stage II TB and intake, HE 1418
cam,
> 1.6 Roller rockers, MSD digi6+, MSD HVC coil & 8.5 wires, Hp cap + rotor,
MP
> PCM, DT headers, Gibson exhaust (3" from headers back, no cat), 180 stat,
> autolite 3923's, progear DR timing chain, 24# FMS injectors, auburn LSD,
4.10
> gears, superior axles, K&N X-stream filter system, MP valve covers
>
>
> John S
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