lobuxracer

iTrader: (2)

The 2UR-GSE does have a scavenge pump in the heads.

spddemon

Thanks for the great info I enjoy seeing the internals of the engine.

MRISF

iTrader: (4)

SO would cams be a viable option and would it be worth the money for the power gains?

lobuxracer

iTrader: (2)

Unlikely cams would be a good addition without other supporting mods and realizing you're pushing torque from low end toward the high end.

darbs242

iTrader: (5)

Realizing that cams would move tq upward and increase top end with supporting mods (I,H,E). If someone did make them, wouldn't the ECM tune (adjust) itself to match the new parts like it does with headers for example?

lobuxracer

iTrader: (2)

Maybe. Depends on how the ECM decides cam timing and if it is looking up expected MAF values vs. rpm and load.

lorenr

iTrader: (1)

I understand the scavenging of the oil so that it can be returned to the pan, but I also believe that the motor has an oil accumulating system that contains three quarts. The oil accumulator holds oil until oil pressure drops from high G cornering and oil is supplied as needed. The tank is refilled when normal oil pressure returns. What is the story on that.

I believe that there is seven quarts in the pan and three in the oil accumulator tank.

Hope to buy one of these cars soon. Until then, just curious.

lobuxracer

iTrader: (2)

Where did you hear that? There's nothing in Lexus's documentation to support this claim.

Solrac28

Yeah the 2UR does. You are absolutely right. The question asked was if the 2GR-FSE did. I said no and neither did the 2GR-FE.... originally mistyped 2GR-FSE, now edited and fixed. I have several friends across the country attempting the head and internal swaps of the 2GR-FSE into the 2GR-FE block in an attempt to end up with a transverse mounted 2GR-FSE. So far what has been uncovered is the differences in the timing cover and oil pan. The 2GR heads have huge drain back ports on the outter edges of the heads and perhaps this is why they get way with no additional scavange pump although I still think it a brilliant idea.

Back on topic with the 2UR-FE the scavange pump actually lives in the front cover. If you look closely at the picture of the inside cover you can see the to tubes that come from the heads and the drain back to the oil pan. Nicely done Lexus/Toyota. I would love to make some cams like the 2UR for my 2GR projects..... would be sweet. :-)

carchitect

iTrader: (1)

2GR-FE (transverse from the FWD) is slanted rearwards like a backwards L6 (not-inline 6).

2GR-FSE (longitudinally {sp?} from the RWD) is a normal mounted V6 not weirdly mounted backwards like the FWD.

If a 2GR-FSE D-4S heads are mounted the the rear head may fill up with oil. You may need to scavenge pump the oil. The issue will be more of a concern during acceleration.

I would like to look into using the 1GR-FE crank and rods in my 2GR-FSE engine to stroke the engine and bump compression to four liters and up the CR from 11.8 to 13.4. Since the engine revs to no more than 7k redline. The 95mm stroke shouldn't be exceeding sonic piston speed.

-Joe

Solrac28

The slant found in the transverse mount versions (2GRFE) is by design. It is meant to get more weight over the drive axles. Toyota/Lexus did this very much on purpose. Actually kind of cool when you think about it.
As for the 1GRFE internals going in a 2GR block, that route is a no go. Dont waste your time. I have spent more times studing this than I care to admit. There are other paths to achiving larger displacements with the 2GR if that is what you are after but it does not have anything to do with the 1GRFE to make it happen. I have most of the parts needed either in process or already worked out. Eventually when I dyno sheets to back it my work up I will make available the parts. At that point I will like to look into becoming a vendor on this forum.