Interesting discussion. I guess the proof will be in the pudding once a Hemi gets blueprinted and see what the numbers are before and after.
In the end, you really have the best reply. Basically until someone starts modifing the Hemis FROM the inside out we really won't know what will and what won't SHOW any gains in power.
But it sure is fun to speculate..... :lol:
Check this article...
Not too much in the way of balancing & blueprinting specifically, but it speaks in general terms about potential Hemi performance gains FROM typical mods. Interesting stuff.
Interesting note on the addition of a cold-air kit.
2005 Dodge Magnum RT - Midnight Blue Pearl
Volant CAI, 190 Thermo, Mr. Grille Vertical Grille,
SXT Headlights, MDS Monitor, Bel 975R,
Infinity 3002cf (dash),Blaupunkt 605 woofer (door), Infinity 6002si (Rear),Infinity Basslink, SC Tuner, GSM Fan/Traction Mod, 22elite Heal Guard, Factory One Tail lights
in reference to the popular hottrodding's mention of the air intake system reprogramming issues, does anyone know contact info for Squier Inc
Street & Performance
Dept. SRB, #1 Hot Rod Lane,
Mena, AR 71953,
Current: 2005 Dodge Magnum RT Mineral Grey
Past: 1970 Dodge Super Bee, 1976 Pontiac Firebied, 1987 Ford Mustang GT, 1997 Dodge Grand Caravan LE
The part of adding a CAI does bother me. How are these guys making the claims that they are if we can't see any gains without reprogramming? K&N has never mentioned anything about changing anything to me and they are telling me I'll be happy with a "noticeable increase"...so what gives?
'11 Charger RT Plus- Bright White
22" staggered USW's with Toyo Proxes 4,LMI Hammer intake, 85mm BBK, Mopar Strut braces F&R, Corsa Sport exhaust. Trufiber CF hood, BT underhood treatment, Custom engine bay covers/paint. Full SRT fascia swap and SRT rockers, strobes (headlights and reverse lights). Full audio done by Newport Auto Sound with Audison, Hertz and Rockford Fostage. Accuair eLevel system with UAS bags, Viair compressors. KW struts. And yet still....more to come very soon.....
RETIRED -'05 Black Magnum RT
I suspect, what they really mean is we won;t get the maximum benefit without a reprogram. Enough evidence exist that we get an improvement, just probably would get more with a better fuel curve.
I worked for a year at GM's St Catharines engine plant building 5.3, 5.7 LS1 and 5.7 LS6 V8 engines. Worked head machining, rod machining, and cam machining. Crank machining was done via automated CNC tools. The rest were done with proprietary tooling.Originally Posted by analyte
The precision and accuracy to which the items were manufactured would give you fits. I'll give you an example: Valve seat bores were toleranced to within + / - 8 microns. They were automatically double checked on the line, and then sampled every 50 parts for a hand instrument check.
(happy to be back working at Chrysler now)
I find this debate intriguing, but it all comes down to how meticulous your engine builder is whether you will see an improvement over the engine in your new Magnum.
Kerry, it's not about the engine assembly line. It's about the tolerance on the print for each component that comes in FROM a supplier. Of course a good engine builder can do better, but if you find a normal engine builder he won't do any better.