CHOPPER1

Finally had the Z Dyno tune done. I was pleased w/ the outcome.
Good numbers and naturally aspirated. Compliments to Hinsons for the runs and tune. We had some new parts ie. RPM Level Tranny, LS9X clutch and new T Tube so I had them be "take it easy" on it. No NOS dial in and all motor.



Since RWHP/TQ is the key, all looked good. I would guess 10-15% more for HP # at the crank.

jumbojet

Nice numbers..I thought this car sold??

CHOPPER1

Personal issues came up and the buyer and I called it off..no hard feelings. Just bad timing. We still remain good friends..it's all good. He never got a chance to drive it or see it. He was thinking maybe after the first of the year..If I still have it..

phxcobra

I thought this car was over 6xx to the wheels. At least that was the advertised power when the previous owner sold it.

jumbojet

I see. Very nice ride you got there. As far as numbers go, dynos are all different. 560RWHP must be nice..any track numbers

CHOPPER1

You said it..the prior owner gave me the same info.

Oh well. I'll take the numbers I have and go with it. All Dynos run slightly different. I do know I would prefer to take the numbers from a dyno that runs tighter. It's close at the crank for what she posted. Low mid 600s with the 10-15% Dyno window loss for drvetrain.

All I know is it runs great..

jumbojet

Again dynos are all different but I would think you'd have slightly more TQ with the extra cubes. How many miles on the built motor? May need some more break in miles and/or some head porting..?

CHOPPER1

Here is the build specs on the motor (she posted..and I did call to verify are accurate)

- 442 CID LS7 block Manley flat top pistons with valve reliefs, Callies 6.125" forged rods, Callies 4.125 stroke forged crankshaft, Akerly & Childs "file to fit" ductile moly top ring, Napier cast iron second ring. Clevite "H" bearings.

- A&A Corvette CNC ported LS7 cylinder heads. 1.30" dual springs, titanium retainers, hardened bases, jumbo locks. Stock titanium intake valves, custom stainless exhaust valves. Heads milled to 68CC - final compression ratio: 12:1
- ARP head and main studs
- OE MLS head gaskets
- Custom grind camshaft (114 LSA) with GM performance lifters
- OE rocker arms and pushrods
- Ported LS7 throttle body and intake
- A&A Corvette custom return style fuel system
- Kook's 1 7/8 Headers with 3 Inch Mid Section
- Stock C6 Z06 Catback with Exhaust Control Switch (Switch installed to leave open or closed)
- One Off Custom Direct Port Nitrous system with dual bottle setup, heaters, purge and stand alone fuel system.
(Adjustable up to 500 HP, set at 250 shot)
- RPM Level 5
- Rear Differential Hardened Output Shafts (Both sides)
- MSD Wires with NGK TR6 Spark Plugs
- Carbotech Brake Pads
- Stainless Steel Brake Lines

Like Jumbojet said and I agree. Every dyno is slightly different. I'm still very pleased with 560. Once you get to the 550 mark it takes a whole bunch of money for just a gain of a couple of more ponies.

No track times..She more of a weekend toy. The car has about 18400 miles. Mods were done at about 9000 miles. I just wanted current dyno info.

CHOPPER1

That was on pump gas. BP high octane.

427silverhotrod

what was the sale price? Nice build.

CHOPPER1

PM sent.

CHOPPER1

No problems at all.