Mine is very repeatable, almost like the TB doesn’t know how to meter the air in certain loads. This doesn’t happen nearly as bad on the big pulley for 93.
I’m running the 2.75 10% lower and did not port the 2650.
Psifer Build Thread - Kong 2650 & HHP/BES 426
- Thread starter Psifer
- Start date
I’m running the 2.75 10% lower and did not port the 2650.
I've been starting to have some fun with the new build now that racing season has started.
Opening day at the drag strip was busy, so I only got a couple of runs in. I wanted to go easy on the drivetrain at first, so I did not use launch control. I was also still on the winter ethanol blend, at 73% ethanol, and did not have max timing unlocked in the tune. The air was great at 1060 DA. I managed to get a 10.86s @ 126.94mph. My 60' was only a 1.74s, plenty of room for improvement.
I ran into a 750whp Hellcat Charger on a big rear tire that was willing to run a 40-130mph. I started half a car back, pulled ahead, but ended up back to being behind by half a car when I saw 130mph on the dash and left off.
First, I plan on adding some E85R, Nitto NT555RIIs in 305/50R20, and using launch control to see how much better I can improve with the current setup. My goal is to be at or below 10.5s in the 1/4 mile with the current setup.
Second, I'll be installing a FID Triple Fuel Pump kit, Kong 2650 2.5" upper pulley, Kong Dual Idler, making my own -10an fuel line, and sending the Kong 2650 out to get ported. I'm hoping to be at or below a 9.5s in the 1.4 mile with this setup.
I'll still have a 2.35" upper and 15" OD lower to swap to if I want to max out my setup. My track enforces NHRA rules, so I can't surpass 9.0s or 150mph without needing to cage the truck. However, I don't think the Kong 2650 can get me that far, but it may get close.
Opening day at the drag strip was busy, so I only got a couple of runs in. I wanted to go easy on the drivetrain at first, so I did not use launch control. I was also still on the winter ethanol blend, at 73% ethanol, and did not have max timing unlocked in the tune. The air was great at 1060 DA. I managed to get a 10.86s @ 126.94mph. My 60' was only a 1.74s, plenty of room for improvement.
I ran into a 750whp Hellcat Charger on a big rear tire that was willing to run a 40-130mph. I started half a car back, pulled ahead, but ended up back to being behind by half a car when I saw 130mph on the dash and left off.
First, I plan on adding some E85R, Nitto NT555RIIs in 305/50R20, and using launch control to see how much better I can improve with the current setup. My goal is to be at or below 10.5s in the 1/4 mile with the current setup.
Second, I'll be installing a FID Triple Fuel Pump kit, Kong 2650 2.5" upper pulley, Kong Dual Idler, making my own -10an fuel line, and sending the Kong 2650 out to get ported. I'm hoping to be at or below a 9.5s in the 1.4 mile with this setup.
I'll still have a 2.35" upper and 15" OD lower to swap to if I want to max out my setup. My track enforces NHRA rules, so I can't surpass 9.0s or 150mph without needing to cage the truck. However, I don't think the Kong 2650 can get me that far, but it may get close.
I've made a fair number of changes to my setup, now making ~300hp more than previously. I'm hoping to get to my local track one last time before the season ends. Rumors are circulating that it's getting sold out to become a data center so who knows if I'll get another opportunity after this year. I'll have to travel out of state.
Here's a summary of the changes I made:
Here's very short clip I pulled off the FitCamX while doing some data logging. This was in 2nd gear, spinning at first and then caught traction. I'm still working on dialing in the tire pressure for the street.
Here's a summary of the changes I made:
- Ported the Kong 2650
- Swapped 3.0" upper pulley to a 2.5"
- Swapped AAD idler to a Kong dual idler
- Fluidyne radiator
- Manton billet valve covers
- Vibrant, vent-to-atmosphere, catch can
- -12AN PCV lines
- -16AN intercooler lines
- Deleted expansion tank from intercooler loop
- Fuel Injection Depot triple-pump kit
- 295 primary with two additional 285 fuel pumps
- Swapped to custom fuel lines
- I made a -10AN fuel line from the fuel hat to a FluidWorks 12GPM 10 micron external fuel filter. The line from the filter goes to a FluidWorks Y-block on the firewall that splits into two -8AN lines feeding the rear of both fuel rails. I then have the front of each fuel rail connected by a crossover that goes behind the blower, with an ethanol sensor and fuel pressure sensor in line.
- Custom 5" air intake that goes to a short 6" bellmouth on the end so the K&N air intake can clamp onto it
- Added v-bands to the Kooks long tube header collectors to eliminate minor exhaust leaks
- Street-only wheel & tire setup
- Nitto NT555R2 in 305/50R20
- Custom wheels to resemble TE37s
- 20x9.5 +0
- Bead seat knurling to prevent the tire spinning on the wheel
- Custom center caps with TRX logo
Here's very short clip I pulled off the FitCamX while doing some data logging. This was in 2nd gear, spinning at first and then caught traction. I'm still working on dialing in the tire pressure for the street.
Last edited:
- Joined
- Aug 31, 2024
- Messages
- 950
- Gallery
- 79
- Reaction score
- 1,371
- Location
- Rio Rancho, NM
- Current Ride
- '21 TRX
