stock block horsepower
#1
stock block horsepower
for those of you old timers like my self here on the forumn how much horespower does the stock block motor seem to handle without anything breaking?ive read so many differant numbers but 450 to 470 hp seems to be about the limit.and of course i also would like the newer members thoughts also.i am going to either get another blower,ported stock blower or a mangum case and maybe some of the newer sheetmetal intakes to get my power up to about 450 hp with about 16lbs of boost.i have 390 now with 14 lbs of boost.any suggestion on what to add to get this level of power if its safe?
#4
450 has been the limit for so long that it's accepted as law; but, I think that with the correct support mods (SCT2400 MAF, bigger injectors, and upgraded fuel pumps), over 500 SAE is possible. I'll know for sure in a years time. I'm already there on a stock block; and, there are others that have been at, around, or above 500 rwhp for a long time already. 450 rwhp SAE, with stock pumps, MAF, and injectors, sounds about right though.
#5
Originally Posted by Odin's Wrath
450 has been the limit for so long that it's accepted as law; but, I think that with the correct support mods (SCT2400 MAF, bigger injectors, and upgraded fuel pumps), over 500 SAE is possible. I'll know for sure in a years time. I'm already there on a stock block; and, there are others that have been at, around, or above 500 rwhp for a long time already. 450 rwhp SAE, with stock pumps, MAF, and injectors, sounds about right though.
AGREED!
#7
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#8
#9
Ask a question...get a 100 answers. LOL
But as everyone has said....experience has shown that anything over 450rwhp is crossing the "safe line". BUT...that depends on alot of things. (i.e. tune...gas...driver...ect) Seems most folks ventilate their blocks with 80 kick-downs on the highway.
Just my $.02
But as everyone has said....experience has shown that anything over 450rwhp is crossing the "safe line". BUT...that depends on alot of things. (i.e. tune...gas...driver...ect) Seems most folks ventilate their blocks with 80 kick-downs on the highway.
Just my $.02
#11
#13
Originally Posted by LatemodelRacer2
i ran 503 rwhp on my stock block for over a year with no problems. I sprayed the crap out of it from 15 -115 degrees temp. Get a good tune and hold on
Safe kickdowns with the stock block with a little more seat of the pants thrust is what I'm after.... 4lber+ dyno tune.... is that what I'm after?
#14
Originally Posted by emig5m
So as long as I get a proper dyno tune, I should be ok with a 4lber, a kickdown or many, on the stock block? lol... Just be a little mellow in the cold weather or could I get a winter tune uploaded to a handheld tuner or would it have to go to the dyno for the proper cold weather tune or what?
Safe kickdowns with the stock block with a little more seat of the pants thrust is what I'm after.... 4lber+ dyno tune.... is that what I'm after?
Safe kickdowns with the stock block with a little more seat of the pants thrust is what I'm after.... 4lber+ dyno tune.... is that what I'm after?
minn-kota or pratt & whitney can help you with your "thrust":
http://www.pratt-whitney.com/prod_comm_pw4000_112.asp
#15
Originally Posted by Odin's Wrath
450 has been the limit for so long that it's accepted as law; but, I think that with the correct support mods.........
I believe it's possible to push 500rwhp on an otherwise stock motor... and have it serve a decent lifetime. But those items absolutely must be in order for it to do so.
This last year I was pushing about 500-520 rwhp on spray and you can see it was taking it's toll on my rod bearings. Even when using fully synthetic & thicker oil. And ramping my shot size up so as not to shock it down low too.
(pic shows the compression end of the rod bearing)
Rich