How much hp can the Stock Block Handle

[WhiteHype08]

I am looking to upgrade the turbo in my 1993 MR2. What is the max hp I can take the block too safely and daily driven?

[pdxvento]

this should help you in your search

http://www.automotiveforums.com/vbul...d.php?t=197050

[MRQtwinturbo]

with the proper supporting mods (ie upgraded IC) and conservative tuning....stock block should be good up to around 300rwhp....i'm in that range...motor is still stock and unopened...

[Lachean]

400RWHP isnt unheardof on the stock block...

[MRQtwinturbo]

^^bottom end maybe....but u'll need cams to reach 400rwhp....

[Lachean]

Yeah? And you're ugly...

[MRQtwinturbo]

^^we got us a bright one here.....

ur intelligence overwhelms me...if ur gonna insult me...be creative...witty....otherwise...keep ur two cent comments to urself....

[Redlyne_mr2]

There are a few stock block 500-600whp mr2s out there

[DSR]

haha, thats comedy.....

[MR2QuiK]

MRQ is right, 300hp should be safe.

[MRQtwinturbo]

Originally posted by Redlyne_mr2
There are a few stock block 500-600whp mr2s out there

untouched motors??....no pistons/rods or cams??.....maybe stock block..but not stock internals...

[JekylandHyde]

Yes, there is at least one MR2 with over 500 rwhp on the stock engine (internals and all).

[arcasmachineracing]

Originally posted by JekylandHyde
Yes, there is at least one MR2 with over 500 rwhp on the stock engine (internals and all).

The real question now is: How long would an NON-BUILT engine survive under the stresses of 500hp?

[91turbo2]

the stock mr2 block untouched can handle upward of 400+whp, if tuned correctly with a aem ems, and other mods, with no mods done to cams or internals, as long as the engine is healthy.

[91RED3S]

i agree with MRQturbo i think the max i would go on stock internals is 300 horse, even if more were possible, reliability is sometimes better or just as important as numbers