Modified 2UR-GSE
#1
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Modified 2UR-GSE
Check out this modded 2UR-GSE block that the LC 500, GS-F and RC-F share:
Highlights from the mod:
I think it's a very capable machine especially with all the advancements Lexus put into it (e.g. direct-injection, dual VVT-i and VVTiE camshaft actuation).
Check out the whole article here.
Highlights from the mod:
- Increased Bore Size from 94mm to 99.5 mm
- Increased Displacement from 4,969 cc (5.0L) to 5,569 (5.6L)
- Power increased from 467hp to 525hp
- Torque increased from 391 lb.-ft. to 440 lb.-ft.
I think it's a very capable machine especially with all the advancements Lexus put into it (e.g. direct-injection, dual VVT-i and VVTiE camshaft actuation).
Check out the whole article here.
Last edited by LDEUX; 11-03-16 at 03:41 PM.
#2
Pretty cool! Just add a set of Sikky headers to the RCF and you'll get the same gains
#4
Well yeah price is definitely going up but the factory rods are forged so to increase hp only 58hp (< 8hp extra per rod) that's pointless unless this build has bigger plans. Which is why I assume they are planning to go forced induction once they discover their way into that ecu. Same reason you do copper o-rings for big turbo builds so you don't blow a head gasket.
#6
Lead Lap
Well yeah price is definitely going up but the factory rods are forged so to increase hp only 58hp (< 8hp extra per rod) that's pointless unless this build has bigger plans. Which is why I assume they are planning to go forced induction once they discover their way into that ecu. Same reason you do copper o-rings for big turbo builds so you don't blow a head gasket.
Last edited by Davew77; 11-03-16 at 03:38 PM.
#7
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Thread Starter
The GT3 is putting out more power on this block, 560 bhp IIRC. I wouldn't consider 525 bhp to be testing the limits of the engine. RR Racing is supposed to be testing a supercharger right now and they are projecting ~510-520 whp which translates to ~600 bhp and I wouldn't really consider that to be testing the limits of this engine either. I would consider that to be a conservative test of their FI system and tune.
Don't know about you but I'd like to keep my RC-F NA, so I was excited to see a power/torque mod on the block that didn't introduce FI. If I did do FI it would be TC not SC, that whine wouldn't fit the RC-F IMO.
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#9
my guess would be its still on the factory ecu. i know on n/a Porsche engines the factory ecu will learn and adjust for the increase in bore/stroke when we go from 3.4 to 3.6/. But if this car ever goes turbo and they decide to test their theory on how much power this block will hold they will need standalone
#10
RCF Torque
The RCF def needs more Torque, and a 49~50 gain would be noticeable.
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