The Coyote has forged powdered rods. They are still powdered.

Powdered rods do just fine in GM applications. In fact, I have never heard of rods being a problem in LSX engines. They are good up to 550+ whp, at which point the pistons and compression ratio and other issues come into play.

The top ring land is probably very thick because of the crown height that comes with most 11:1 CR piston packages.

The easiest way to tell what material the stock pistons are is to examine the stock piston-to-wall clearance spec. If it's really minuscule (measured in ten-thousandths), they're hypereutectic. A clearance measured in thousandths would indicate they're 4032 forged pistons.

Though any shop who has built up a couple VHR's should know for certain. It's somewhat hard to tell by examining some OEM pistons, but there are tell-tale signs just like with crankshaft forgings.

Not arguing with you there. There is a 2011 Mustang 5.0 in the 9's already on the stock bottom end.

Yeehaw!

:icon17:

Actually, the new mustang is pretty darn impressive. .97 on the skidpad, and the V6 version runs almost identical times to a 370Z that is a bit "slower". i.e. mid 13's@102-3 and 0-60 in around 5.1. The V8 is running mid 12's at well over 110. If you slap something on it wider than the OEM 255 series rear tires, performance-wise I think it is VERY tough to beat for the price in a new vehicle. Quality-wise, it is a big step up for ford, but I still think the 370 is better built regarding the interior.

I'll take your word on it... you clearly know your onions on engine building and tuning... :tiphat:

That said, on my old 2ZZ, which had a slightly higher CR, the ringlands were very fragile... :ughdance:

I was just assuming. I've never seen a stock 370Z piston. Higher CR can also be accomplished with cylinder head bowl volume, piston crown design, rod length, shorter deck height, etc.

I'm probably wrong assuming that; most newer low-emissions engine designs utilize thin top ring lands and tighter ring gaps (bad combination) for emissions reasons.

Agreed. If you take the time to really read up on the coyote engine, you will find that it and the VQ37VHR use virtually the exact same engine tech to achieve their respective numbers. Aluminum blocks, variable timing on intake and exhaust, similar bottom end design, etc. Th interior of the 'stang is a whole class below the Z but the handling is right there considering it's a 4 seater in the same price range. These 2 are the best sports cars in this price range by a longshot.

Really wishing the Z could be faster, though. If they trapped 110+, I would be VERY hard-pressed not to consider. As it is, a TT kit would have me in the $ range of a lightly used Z06. Interior on Z0 isn't so great, but 450whp makes up for things.

N/A mods get you to 110+ traps in Z?

I recommend the turbonator. It will provide longer life expectancy from your 370z's engine than the twin turbo or centrifugal supercharger set up, and it's cheaper, too!

http://www.streetbeatcustoms.com/pro...c7d9_2496.jpeg