Post by
brianw »
https://forums.nicoclub.com/brianw-u65970.html
Mon Jul 16, 2007 10:26 am
VQ30's tend to take up to 400-450whp on stock internals. A little more is possible, but you're right on the ragged edge.
VQ35DE's tend to take a similar number, but ths 6-speed is a little stronger. Not much. The engine itself is about as strong, maybe a smidgen weaker-- but if you raise the redline, the VQ30 tends to hold together a little better-- stock for stock, that is.
Both, above 400whp or so, get pretty fragile to low oil pressure and detonation, so keep that in mind. As noted you can do 475whp+ but you sneeze at it wrong and it'll break. A fairly safe number assuming reasonable coolant and oil temperatures as well as A/F ratio is probably 400whp... maybe 450whp... but we've broken too many things at 450whp in extended racing sessions at that number...