qr25 lower overhaul

jmbernard73 · Jun 18th, 2003, 09:21 AM

I have been talking to a 240sx mechanic about changing my q25 crank to a 240sx crank and pullys because of the know weakness in the lower engine then i would be able to run alot more than 270 hp to my qr25! How true is this statement?

tekmode · Jun 18th, 2003, 09:32 AM

I have no idea, but I doubt if it would work.

jmbernard73 · Jun 18th, 2003, 09:34 AM

why is that?

jmbernard73 · Jun 18th, 2003, 09:35 AM

i am slowely learning of the qr25 and it's minor downfalls

tekmode · Jun 18th, 2003, 10:33 AM

Quote:

Originally posted by jmbernard73
i am slowely learning of the qr25 and it's minor downfalls

just about every motor has its downfalls though, nothing is perfect

cortrim1 · Jun 18th, 2003, 10:43 AM

Quote:

Originally posted by jmbernard73
I have been talking to a 240sx mechanic about changing my q25 crank to a 240sx crank and pullys because of the know weakness in the lower engine then i would be able to run alot more than 270 hp to my qr25! How true is this statement?

the stock crank is fine is the rods and pistons that need to be changed to get over 270whp and not break the motor. check this out if you are trying to make alot of power. The crank does have some draw backs as do most motors but this thread should help.

http://www.b15sentra.net/forums/show...threadid=57498

jmbernard73 · Jun 22nd, 2003, 01:26 PM

thanks