Its here!! TVS2650
12-13-2016, 06:37 PM
#143
Teching In
Join Date: Dec 2005
Location: SoCal
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This testing was run with stock airbox, stock air filter, stock throttle body, stock exhaust manifolds and stock catalysts. We will slowly upgade these parts as the car looks to see the full potential of the R2650 (1400-1500 HP)
Car ran full weight at the track 2 weeks ago - 9.93 @ 138MPH with a larger 3.25" pulley (840RWHP) to add some margin to the fuel system at the track.
The 3.0" pulley was used to produce the 870 RWHP, fuel system will be upgraded shortly and we'll be back at the track to run the higher HP pulley.
The R2650 LT/LS jackshaft system will be run on a LT4 engine later this month/early next month. I'll post results as soon as we have some data from the GM platform.
12-14-2016, 09:48 AM
#147
The 2650 will be available for all LT and all LS Engine platforms eventually. It's just a matter of development time to make sure we have the best kits available for all applications. That means experimenting with different port designs and intercooler sizing to really utilize the 2650 to all of it's potential.
But yes the Cathedral head is a must...I need one on my truck!
12-14-2016, 11:20 AM
#148
SC testing was on a stock 2015 hellcat, only changes being SC (and accompanying intake manifold), 850cc injectors, and cat back Borla exhaust (which was already on the vehicle).
This testing was run with stock airbox, stock air filter, stock throttle body, stock exhaust manifolds and stock catalysts. We will slowly upgade these parts as the car looks to see the full potential of the R2650 (1400-1500 HP)
Car ran full weight at the track 2 weeks ago - 9.93 @ 138MPH with a larger 3.25" pulley (840RWHP) to add some margin to the fuel system at the track.
The 3.0" pulley was used to produce the 870 RWHP, fuel system will be upgraded shortly and we'll be back at the track to run the higher HP pulley.
The R2650 LT/LS jackshaft system will be run on a LT4 engine later this month/early next month. I'll post results as soon as we have some data from the GM platform.
This testing was run with stock airbox, stock air filter, stock throttle body, stock exhaust manifolds and stock catalysts. We will slowly upgade these parts as the car looks to see the full potential of the R2650 (1400-1500 HP)
Car ran full weight at the track 2 weeks ago - 9.93 @ 138MPH with a larger 3.25" pulley (840RWHP) to add some margin to the fuel system at the track.
The 3.0" pulley was used to produce the 870 RWHP, fuel system will be upgraded shortly and we'll be back at the track to run the higher HP pulley.
The R2650 LT/LS jackshaft system will be run on a LT4 engine later this month/early next month. I'll post results as soon as we have some data from the GM platform.
The shift point is stock at 6200 (which btw... there is a lot of power left raising those. It's how whipple made more horsepower with their 4.5 on a hellcat at lower boost), and the stock balancer is 7.4".
lets just assume the cogs are 20% over driven.
3.25" pulley and a 7.4" lower is a 2.28 ratio, with 20% OD cogs its 2.73. That means at 6200RPM the blower was spinning to just about 17k RPM to make 840RWHP at about 17PSI.
That same math puts the 3.0 pulley at just about 18250RPM. The horsepower gain isnt there because boost becomes "too high" and the 92mm throttle body is choking it.
If those numbers are correct it is very impressive what they have been able to accomplish. Like I said... we need to get this thing on a motor that can actually flow some air. Headers and uncorking the intake are a good start, but a cam swap will be the game changer.
