WEAPON-X C7ZR1: 920whp/902wtq throwing flames on stock long block!
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St. Jude Donor '14
WEAPON-X C7ZR1: 920whp/902wtq throwing flames on stock long block!
Sorry I’ve been MIA! Been so busy lately between the shop, racing, and another new venture, I’ve barely seen my kids!
We shipped 4 cars back out of state Friday and reset the CTS V3 LT4 boost record Saturday at 9.21 at 151!
The C7 ZR1 continues to amaze me with this factory 2650! We wanted to push the stock bottom end before we did heads/cam and we’ve hit 920whp/902wtq on the stock bottom end and the car is running fast at 115mph in the 8th and 146mph in the quarter! I’m .15 off my best 60’ running 9.68 in 2800 DA. So I really need to rent KilKare at this rate to lay it down. I’d like to see 1000whp on this, but feel like we’re approaching the air flow restrictions from the stock cam to do it safely.
- WEAPON-X Ported LT5 Supercharger
- WEAPON-X Griptec Pulley
- NW 112 TB
- WEAPON-X 112 Thermal TB Adapter
- WEAPON-X LT5 Thermal Lid Spacer
- WEAPON- X 5” Carbon Intake
- WEAPON-X LT Valve Covers
- WEAPON-X Catch Can Kit
- WEAPON-X Low Side Fuel Kit
- Circle D Triple Disc Converter
- Kooks 2” Headers
- Akrapovic Ti Exhaust
- Forgeline 18” Dragster Kit
Enjoy!
We shipped 4 cars back out of state Friday and reset the CTS V3 LT4 boost record Saturday at 9.21 at 151!
The C7 ZR1 continues to amaze me with this factory 2650! We wanted to push the stock bottom end before we did heads/cam and we’ve hit 920whp/902wtq on the stock bottom end and the car is running fast at 115mph in the 8th and 146mph in the quarter! I’m .15 off my best 60’ running 9.68 in 2800 DA. So I really need to rent KilKare at this rate to lay it down. I’d like to see 1000whp on this, but feel like we’re approaching the air flow restrictions from the stock cam to do it safely.
- WEAPON-X Ported LT5 Supercharger
- WEAPON-X Griptec Pulley
- NW 112 TB
- WEAPON-X 112 Thermal TB Adapter
- WEAPON-X LT5 Thermal Lid Spacer
- WEAPON- X 5” Carbon Intake
- WEAPON-X LT Valve Covers
- WEAPON-X Catch Can Kit
- WEAPON-X Low Side Fuel Kit
- Circle D Triple Disc Converter
- Kooks 2” Headers
- Akrapovic Ti Exhaust
- Forgeline 18” Dragster Kit
Enjoy!
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Ben@WeaponX (06-16-2019)
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St. Jude Donor '14
However, I do feel we're about maxed out with airflow on the stock camshaft as well. If you look at a lot of the stock cam dyno graphs, they're nosing over in that area.
Yes, I tuned the PCM, PIF, and TCM. I have port coming in smoothly, not the on/off switch that some are having trouble with, and the trans tune is killer.
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WzUpDoc (06-11-2019)
#7
Le Mans Master
I am assuming it’s e85 only without a tune change? Not flex fuel. No meth? The high side must be working hard!
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St. Jude Donor '14
High side is solid as a rock with injector m/s under 5.0 and DI line pressure at 20-21 MPA the whole way with fuel line pressure throughout the quarter mile pass is 65 PSI with our low side.
10 rib at the moment
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Ben@WeaponX (06-16-2019)
#16
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St. Jude Donor '14
Port Injection Fuel controller, their piggyback version like our SPI kit basically
Shoot me a PM and I can put together a package for you. Recommendation depends on supporting mods
I've considered making this change myself, but 2" headers have carried us a long way. That being said, as long as the merge collectors are doing their job scavenging, the extra volume on this kind of power and heat will help cylinder temps
215 MPH
#17
Le Mans Master
Yes E85... well about E75 pump here. I need to get some ignite 114 in it.
High side is solid as a rock with injector m/s under 5.0 and DI line pressure at 20-21 MPA the whole way with fuel line pressure throughout the quarter mile pass is 65 PSI with our low side.
10 rib at the moment
High side is solid as a rock with injector m/s under 5.0 and DI line pressure at 20-21 MPA the whole way with fuel line pressure throughout the quarter mile pass is 65 PSI with our low side.
10 rib at the moment