Will Boring my 2.8 to 3.0 kill my engine?

[15 DEGREEZ 7]

Right guys heres the story! 

 

As some may know im doing an engine rebuild on my VR engine. I have plans to supercharge but im abit worried if i bore it out to a bigger capacity, will it weaken and then possibly kill the engine  , alot of people have been saying 2.9 is the safer option but not sure if its just hear say!?.

 

opinions as always are welcomed!! (Even negative ones) 

[RsvRob 6]

Depends on the limits of the block. The machine shop should have all the specs for tolerances regarding minimum thickness for cylinder walls.

I don't particularly know the answer. But I would think that as they already do a 2.9. Then boring it out to accommodate larger pistons there by making it a 3.0. This wouldn't be a massive difference in piston size to accommodate 0.1-0.2 increase!!!

Sent from Dagobah

[UnitedMotorsport 55]

Factory 2.8 is 81mm bore - 2792cc

Factory 2.9 is 82mm bore - 2861cc

 

83mm bore will give 2931cc (2.9)

84mm bore will give 3002cc 

 

The bore size alone  on these engines makes ~no difference to output on these engines.

 

Have the block bored to the next size up (82mm damage permitting)