Hey guys I know this has been before but just wanna check again. What are you guys reving your SOHC's to. The max I've seen on my microtech logger is 7120rpm. Anyone pushing the SOHC much further. Hilly

danny pushes pannic to 9000rpm Some original photos have not been recovered yet.

this engine was built in early 2003bc http://www.calaisturbo.com.au/showthread.php?t=5017 all i can say is WOW....impressive stuff from a back up engine...cant wait to see the actual race engine,its going to rock the vl scene....

Interesting read OMY-11s thanks for the link.I cant see anything wrong with the claims he has made or it proven to be wrong. In zoom awhile ago the VL PANNIC was said to have made 580+rwkw but it has not been used due to tyre size and as TUFBT-1 has said. Quote: danny pushes pannic to 9000rpm Makes it all the more not that hard to beleive. What happened to this car this engine was going in.

Yeah figured pannic would be around the 9k mark. Sorta meant street driven though. Some original photos have not been recovered yet.

my guess this is steves? is that his name (dont quote me) with the RED tubbed calais being built at Rajab, that has a twin turbo donk dont it ?

yeah very interested to know what everyone is pushing there vlt's to before gear change, whatever your mods, list what you change at. thanks

rb25... 8500 limiter

6200... i dont even take it to 6 Some original photos have not been recovered yet.

i take mine to about 5... sometimes it hit redline when im been a hoon and i gota dump the clutch to get on the brake...

george man ur always a hoon

hsvsux usually keeps his under 7k with standard rods and his engines last forever, with constant track work and big boost. Do a quick search to confirm what his actual rev limit is.

Perfect thats about all that I needed to know. Thanks heaps mate Some original photos have not been recovered yet.

was speakin to a guy the other day who has a VLCT with an stockish rb20 5 speed in and he revs out to 8200 all the time with no worrys, i though that was sweet!!!

7500 on the dot

Quote: Originally Posted by TurBO's was speakin to a guy the other day who has a VLCT with an stockish rb20 5 speed in and he revs out to 8200 all the time with no worrys, i though that was sweet!!! RB20DET. 2 cams = More revs 8200 is nothing huge for a twin cam. Thanks SIKNOS that makes me feel better now . What rods are you using. Shot peened stocko's ? Some original photos have not been recovered yet.

5000 anything past that in mine feels like its droped out of the torque range.

7150rpm puts the RB30 piston speed at around 4000ft/min, which is around the most you would want to push a standard production motor too. (Without a full prep, balanced, lightened internals etc to the engine) Sure you can go more, but the 4000ft/min is considered a practical safe standard limit! An RB20 at 8700rpm has a piston speed of around 4000ft/min. So you can't compare one engines rev limits to another unless they have the same stroke. Its the shorter stroke of the smaller capacity RB engines that allows them to rev safely. The twin cam head only helps by being able to flow more air, but more so they have lighter valve springs because of the smaller valves, this alone reduces alot of the eneergy required to drive the cams and valves.

The crank is ground and balanced with shot peened rods. Think I might keep it to 7120 though. Thanks for that info but. Good stuff.

my rev limit is 7300rpm and im allways hitting hit Some original photos have not been recovered yet.