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Sent my C7 ZR1 Corvette to Katech. Result was 979 RWHP on PS Cup 2. I was told I would have broken 1,000 with my drag radials (Mickey Thompson ET Street R) but there was a hold up at Forgeline due to high demand.
Mod List:
SHORTBLOCK
DIAMOND COMPETITION SERIES LT PISTON
LUNATI PRO SERIES 6.300 LS/LT CONNECTING ROD
POLISH, REFURBISH, REBALANCE OEM FORGED CRANK
CLEVITE HIGH PERFORMANCE MAIN BEARINGS
CLEVITE HIGH PERFORMANCE ROD BEARINGS
KATECH 427 IRON CYLINDER SLEEVES ARP GEN V LT MAIN STUDS
KATECH BLUEPRINTED HCHP RED GEN V LT OIL PUMP
VALVETRAIN, SPINTRON VALIDATED CNC PORT CYLINDER HEAD PORTS CNC PORT CYLINDER HEAD CHAMBERS
DECK CYLINDER HEADS
KATECH COMPETITION INTAKE VALVE JOB
KATECH COMPETITION EXHAUST VALVE JOB
KATECH HAND BLEND VALVE JOB KATECH CUSTOM GRIND CAM, BLUE DEVIL SPEC
OEM GM CAMSHAFT BOLT
KATECH C5R TIMING CHAIN
PAC TOOL STEEL SPRING RETAINER PAC 1207X SPRING
PAC TOOL STEEL SPRING LOCATOR, HONED FOR KATECH BRONZE GUIDE PAC 7DEG VALVE LOCK
KATECH BLUE VITON VALVE SEAL KATECH JOHNSON 2116LSR CUSTOM GROUND LIFTER, TO .8422 +- .0002 TREND 3/8 0.080 HARDENED STEEL PUSHROD
CHE BRONZE TRUNION BUSHINGS KATECH 427 GEN V LT CYLINDER HEAD GASKETS
ARP GEN V CYLINDER HEAD STUDS KATECH TOOL STEEL VVT LOCKOUT KATECH TITANIUM MOLYBDENUM INTAKE VALVE, CRN FACE AND TIP FERREA SUPER ALLOY EXTREME DUTY EXHAUSE VALVE
KATECH CHE BRONZE MANGANESE VALVE GUIDES
SUPERCHARGER
KATECH CNC PORT LT5 SUPERCHARGER BASE AND SNOUT FOR 112MM
KATECH 112MM THROTTLEBODY, BLACK ANODIZE
KATECH 112MM THROTTLEBODY EXTENSION HARNESS THROTTLEBODY COUPLERS AND CLAMPS
GRIPTEC UPPER PULLEY
ATI ZR1 LOWER DAMPER
ATI ZR1 LOWER SUPERCHARGER PULLEY
GATES RPM SUPERCHARGER BELT OEM GM CRANKSHAFT BOLT
GEN 3/4 LS FRONT SEAL FOR BOOST
ENGINE BUILD LABOR ENGINE BLUEPRINT LABOR ENGINE DYNO
MISC ENGINE
KATECH ZR1 INTAKE TUBE, SEALED UNIT
GMPP INTAKE AIRBOX
BMS HIGH FLOW FILTER FOR GMPP AIRBOX, MATED TO KATECH ZR1 INTAKE TUBE
BRISK RACING SPARK PLUGS
KATECH MOTORSPORT HIGH TEMP WIRES FROM RACING PROGRAM KATECH HIGH TEMP SPARK PLUG FIRE SLEEVE
KATECH 160 DEG THERMOSTAT
O2 BUNG, WASHER, PLUG, FOR WIDEBAND TUNING
CERAMIC COAT HEADERS, HIGH LUSTER SILVER 1600DEG COATING KATECH SERIALIZED PLAQUE FOR OFFICIAL KATECH VEHICLE
CARSHOP LABOR
REMOVE/INSTALL ENGINE FROM VEHICLE
INSTALL, FIT, FINISH, CLEARANCE, ARH HEADERS TO CORSA NPP EXHAUST
INSTALL MONSTER LT1-S TRIPLE DISC CLLUTCH, PREMIUM SLAVE PACKAGE, BILLET BEARING SUPPORT, SPEED BLEEDER
INSTALL DSS DIRECT FIT AXLES
ADDITIONS
ARH RACE HEADERS, 2" STEPPED TO 2-1/8" TO 3.5" PRIMARIES
CORSA ACTIVE NPP EXHAUST, BLACK DIAMOND TIPS
MONSTER LT1-S TRIPLE DISC CLLUTCH, PREMIUM SLAVE PACKAGE, BILLET BEARING SUPPORT, SPEED BLEEDER
ALL CONSUMABLES, GASKETS,
SEALANT, FLUIDS. CUSTOMER NOTE TO USE AMSOIL SYNTHETICS ID1050X INJECTORS
DSS C7 1600HP DIRECT FIT AXLES, WITH ROAD RACE GREASE AND BEARING RACE UPGRADE
CALIBRATION
SKW-2019 ZR1 UNLOCK AT SKW-2019 ZRI ENGINE CREDITS SKW-2019 ZRI FICM CREDITS SKW-STANDARD GEN5 SKW-BASELINE
METH JET CALIBRATION
ENGINE BLUEPRINT DESCRIPTION PROVIDED LT5 BLOCK PREPPED, CLEANED, AND MACHINED FOR PISTON SLEEVES
KATECH TO INSTALL PISTON SLEEVES FOR 4.120 BORE
KATECH TO FINISH BORE AND HONE TO 4.125 BORE AFTER SLEEVES ARE INSTALLED
FULL BLOCK DEBURR OF SHARP EDGES
DECK TORQUE PLATE CYLINDER HONE WITH DIAMOND STONES TO PISTON DIA CLEARANCE
CYLINDER BORE GEOMETRY AND SURFACE FINISH VERIFIED TO KATECH SPECIFIATIONS CRANKSHAFT JOURNALS POLISHED CRANKSHAFT BALANCED WITHIN 7 GRAMS OF ROTATING ASSEMBLY BOBWEIGHT
FIT AND INSTALL CLEVITE HIGH PERFORMANCE MAIN AND ROD BEARINGS
FIT AND INSTALL ARP MAIN STUDS CONNECTING ROD HOUSING BORES CHECKED, HONED, AND FIT TO BE TRUE AND STRAIGHT
PRECISION FILE HAND FIT RINGS PISTON PIN BORES HONED, MEASURED, AND ADJUSTED
DECK SURFACES MACHINED PERPENDICULAR TO CYLINDER BORES, DECK HEIGHT SET FOR DESIRED COMPRESSION
INSTALL CRANKSHAFT, RODS, AND PISTONS
PISTON QUENCH POURED AND VERIFIED
ALL TOLERENCES, CLEARANCES, SPECS, AND PART NUMBERS ARE RECORDED IN WORKBOOK
FULL ENGINE BUILD ASSEMBLY AND
BLUEPRINT
SHIM HIGH PRESSURE FUEL PUMP
CUSTOM KATECH ICE TANK AND METH INJECTION SYSTEM, FABRICATED WITH HIGHEST QUALITY FITTINGS, RACE GRADE LINES, TANK, AND PUMP. TRUNK MOUNTED TANK. TO BE FABRICATED.
She's good for 1,700 HP. This summer I'm adding the Magnuson 3.1 and E85. Together this should put me at 1,250 RWHP.
I believe this is the fastest/quickest C7 ZR1 with M7 (MGW short throw shifter) and stock blower with no NOS. She's a joy to drive, and she attracts attention everywhere she goes. The sound of the American Racing Headers with their catless X pipe mated to Corsa Sport to Extreme Exhaust with NPP makes sure everyone can hear you.
Not sure how to post the pictures of the Dyno sheets, but I'll get them on here one way or another.
Bleeder for Monster Clutch 5\" CAI Catch can Methanol injection into the CAI Finished motor waiting to be reinstalled
Some reason I cannot respond to your pm, this 7 second C6 you speak of, is it an auto or manual?
Never mind I see you mentioned it has a power glide. So let me get this right, by you telling me that you have a 7 second 1400+ HP 2 speed C6 I am not allowed to ask why you feel that your ZR1 with a manual transmission is the fastest/quickest in the world without any data besides dyno numbers to back it up?
Very exciting build indeed, we are working on a build thread for this car that we are planning to post as well. Can't wait to see what she will push once we can get a 3100 and E85 installed. Wheel slip was a huge issue on the dyno in Michigan which is why the after dyno was funky looking.
Here is a video of the car for those that are interested:
Very nice numbers and with an M7 must be a handful to drive. I didn’t see any track times? Always love seeing high hp cars with a manual trans 🍻
Thank you for the kind words. I'm hoping to get track times this weekend at Bradenton. I'll post the ticket.
No sir, she's an absolute joy to drive. Drives damn close to factory. The cam is awesome. I'm so impressed with the work Katech has done. Unbelievably professional. This is a full race shop and it's equipped accordingly. I have a full blown race motor that's an EVERYDAY driver. I've owned 6 previous Corvettes from a 1970 LS5 454 (dropped a crate LS7 into her in 1973), 1978 Pace Car, two C4 with one being ZR-1, C5 and C6 ZO6. NOTHING compares to this. NOTHING.
That's awesome, nice to see another big power M7 out there. I know what you mean about the noise and attention it draws, not much sounds like a heads/cam ZR1 on the street; at WOT you'd swear it was a damn NASCAR driving by. I genuinely feel back scaring people sometimes when I pass them... sometimes. Good luck, can't imagine how much of a handful it is on Cup 2s!!! If you want something to hold it on the street that isn't a full DR and still provides good handling, I can't recommend the R888R enough.
That's awesome, nice to see another big power M7 out there. I know what you mean about the noise and attention it draws, not much sounds like a heads/cam ZR1 on the street; at WOT you'd swear it was a damn NASCAR driving by. I genuinely feel back scaring people sometimes when I pass them... sometimes. Good luck, can't imagine how much of a handful it is on Cup 2s!!! If you want something to hold it on the street that isn't a full DR and still provides good handling, I can't recommend the R888R enough.
Thank you for the kind words. I have Forgeline wheels with Mickey Thompson ET Street R Drag Radials. I know those 888's are awesome!!!
That's awesome, nice to see another big power M7 out there. I know what you mean about the noise and attention it draws, not much sounds like a heads/cam ZR1 on the street; at WOT you'd swear it was a damn NASCAR driving by. I genuinely feel back scaring people sometimes when I pass them... sometimes. Good luck, can't imagine how much of a handful it is on Cup 2s!!! If you want something to hold it on the street that isn't a full DR and still provides good handling, I can't recommend the R888R enough.
Ah... 19/19... Man I wish I would of done 19/19 when I bought my forgelines. Cant find a tire for **** on the 20.
Yeah, I went back and forth myself. I hadn't done the heads/cam yet so I was okay with Cup 2 tires still, but wanted more options if I went big power. Many people do run the 325/20 R888R's without issue; they aren't 100% ideal, but they do get the job done it seems.
What was done for the fueling? Didn't see those mods listed, unless I just missed it. Great build. Awesome to see an M7. Looking forward to see the time slips.
What was done for the fueling? Didn't see those mods listed, unless I just missed it. Great build. Awesome to see an M7. Looking forward to see the time slips.
This car used ID1050X port injectors and a 38% fuel lobe. Stock low side and stock DI injectors/pump.
Very impressive build! I can't wait to see some videos of it running. I'll bet it sounds incredible.
Yes sir, there are videos on both Instagram and YouTube. I’ll try to upload a video, sir. I’m not the most savvy computer guy who understands everything about computers.
02-01-2021, 09:04 AM
Katech Build, 93 pump with methanol 979 RWHP
Good luck, can't imagine how much of a handful it is on Cup 2s!!! If you want something to hold it on the street that isn't a full DR and still provides good handling, I can't recommend the R888R enough.
