Funanin said:
Ok, as u can see in my mod list of what i have, I have not yet installed the heads, cam, rockers or ignition box itself. Everything else listed is already installed. Now, people are telling me that my bottom end is done if i install this stuff because the power will kill my 2 bolt main and my stock pistons, even tho i dont puff at all and my compression is good on all 8 cyl. I also heard that the 1.7rr that i got are trash because they break or crack from stress or something? One last thing, I thought i researched it pretty good, and thought there would be no problems with this combo, but I am now a little unsure about clearance issues with the cam and rockers, could someone just clear that up for me? I just wanted to have all, or almost all ford motorsport parts on my motor, and people are telling me no now, so whats the deal? I mean i already bought all the parts?!
Any of my questions answered would be a big help guys, thanks.
A stock production block is "relatively" safe up to around 500 HP. beyond that, you are pretty much on barrowed time.
In my buddies 93 LX we ran the factory botton end (with exception of rod bolts, and main studs) The car ran low 11's at 126 MPH when it was fuel injected.
After a few fuel injection grimlins, we changed up the combo a bit.
It had ported TFS twisted wedge heads, a nitrous HP cam, a victor Jr intake (a bit of port cleanup) a holly 650 speed deamon, long tubes.. 3'73's.. and a lentech C4.
We went to a carb setup, bassicly to illiminate the rev limiter. (among other things)
got her up and runing, with a safe tune, and jetted for 150 hp, we took it out on her maiden test run. needless to say,.. it didnt survive. split the block in two.
http://www.geocities.com/for_ever_night/Pict0019.jpg
After that mess, we got a DSS level 20 super pro bullet 347 shortblock.
Again, get it up and runing, changed the carb to a speed deamon 825, on top of a super victor intake.
This block is capable of holding 700 HP.
"The D.S.S. Super Pro Bullet 347 Short Block is capable of making well over 700 horsepower with nitrous or boost, however we recommend that you limit total horsepower to around 650. (mid to high 9’s @ 3200 lbs.) For applications over 650 horsepower you should consider the 331 Bullet SVO featuring the R302 four bolt main block." (
http://www.dssracing.com/)
We thaught, ok.. cool. get it tuned. get some miles on her.. and run 125 horse jets and see what happens. the motor SCREAMED. so we thinking that was cool. we adjusted the jets in the carb, and upped the anti to 200 HP. (we thaught it would take it) with a C4 and ET streets out back. it spun through first gear, second gear, and halfway through 3rd before it broke.
We never did get a nitrous run (down the strip) with the 347.. however, it dud run an 11.02 at 127 mph on motor alone.
I have pictures of its remains as well, however they are rather large.. and I currently cannot resize them. (software problems)
FYI.. DSS based level 20 blocks are stock blocks that have been well prep'd.
It didnt fail because it sucked, it failed because we threw too much power at it.
Anyway, the car now has a Dart based 331, internally balanced. forged crank, rods, and 2618 (I think thats right) alum alloy nitrous pistons.
it is quoted to handle upwards of 1500 HP @ around 8500 RPM.
Also, i'll give Anderson a plug here. the car also has an AFM N-111 cam from anderson motorsports.
no new numbers on the car as of yet. but, it runs great!!
lol sorry so long, just wanted to give some background on my experience with OEM blocks. they are "strong" but not bulletproof.