Ok, I am gonna have to admit that I read Muscle Mustangs and Fast Fords as
well as a couple other Hi-po Ford mags because I like to tinker with Gen-I
Lightnings(SWEET trucks!) and 5.0 Mustangs. I have also seen several
articles claining gains with these plugs, but I didn't see the 40hp claim.
My guess is that they probably had an engine on the dyno and baselined it.
Then, they added these plugs and "refigured" the settings(fuel pressure,map
sensor calibration,injector pulse width timing,ignition timing,etc) at the
same time. They probably "found" 40 hp and attributed it to these plugs. I
put a set in a '93 GT, I put most of it together- it's running a GT-40 Iron
head longblock, Cobra upper/lower intake, FMS F-303 cam, Vortech @ 9lbs,
stock computer(as in the factory 234,000 mile OE comp., no flashes, no
chips, STOCK!), 234,000 miles old T-5 and 8.8 w/3.73 gear, factory LS unit.
When we swapped plugs, autolites came out and the Denso went in. I could
tell a little difference with them, but you had to feel real hard to think
you gained anything. Dyno runs showed about +2 RWHP gain, So I felt pretty
good about how we had tuned it w/ autolites. Denso plugs were in about 3
weeks then I swapped back to autolites, -2 heat ranges from stock(can't
remember the number off the top of my head, sorry) I wouldn't expect to see
any gain in them on a NA engine. Stick with the cheap, tried and true
Autolites. HTH,
Will Coughlin willcoughlin@hotmail.com
'00 reg.cab,2wd,4.7L/NV-3500HD5-spd/3.92sg(9.25")
http://www.geocities.com/willcoughlin/index.html
----Original Message Follows----
From: "Brett Forehand" <brett4hand@hotmail.com>
Subject: DML: Blower guys/Denso Iridium Spark Plugs
Date: Fri, 19 Oct 2001 21:33:57
Hey gang,
I'm out of lurk mode to ask about these plugs. I've been reading quite a
bit about them lately in the Mustang rags, and they seem to be pulling some
awfully high hp with them on supercharged engines. The two tests that I
read were dyno'd, and both managed to get 30-40 horsepower just from using
these plugs. One article in particular is from the December issue of 5.0
Mustangs and Super Fords, where they claim 40 horsepower was gained on a
Paxton Novi blown Cobra engine just by changing to these spark plugs. This
sure seems like a ton of power just from using different spark plugs.
My question is, (especially the modified/supercharged DML'ers), have any of
you guys used these things, and are the claims true? Jim Harmon, Bernd,
Austin??? I also wonder what they might do for a naturally aspirated
engine. Mine in particular!
Later,
Brett Forehand
'94 Dakota CC Sport
http://www.wacokid.freehomepage.com/
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:03:20 EDT