This is topic Stock Block questions??? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 8lbCoupe (Member # 11416) on :
 
I'm new to the board lookin for some help on my build.. So here I go I have a low mile stock 5.0 motor no problems at all and I was wondering if I do a H,C,I with a On3 turbo kit wit that be to much for the block to stand?? Any helpful input is appreciated

[ November 10, 2011, 01:00 PM: Message edited by: 8lbCoupe ]
 
Posted by sydewayzLX50 (Member # 10217) on :
 
More than likely it will be enough to split the block
 
Posted by 79 cobra (Member # 10137) on :
 
it should hold just keep the boost low
 
Posted by sydewayzLX50 (Member # 10217) on :
 
And o yea welcome to cafords
 
Posted by 94 N.C.F. GT (Member # 3946) on :
 
Welcome to cafords
 
Posted by racsirx (Member # 1710) on :
 
Anything over 450hp is pushing the limits of the stock block, but a turbo isn't as has hard as a blower would be on a motor, so you can get it to live longer. I have a stock block making 650hp with 14lbs and another stock block at 550hp with 11lbs, so far so good. Nice thing about a turbo is you can make great hp with the stock cam.
 
Posted by 8lbCoupe (Member # 11416) on :
 
quote:
Originally posted by racsirx:
Anything over 450hp is pushing the limits of the stock block, but a turbo isn't as has hard as a blower would be on a motor, so you can get it to live longer. I have a stock block making 650hp with 14lbs and another stock block at 550hp with 11lbs, so far so good. Nice thing about a turbo is you can make great hp with the stock cam.
What's some of the stuff u did to your short blocks to get the to hold that 550hp u mentioned
 
Posted by racsirx (Member # 1710) on :
 
The 550hp block is just freshened up stock one, the 650hp is a cemented block with stronger 28oz crank, eagle rods and SRP pistons to a 306 with a stock cam and no girdles.
 
Posted by 8lbCoupe (Member # 11416) on :
 
quote:
Originally posted by racsirx:
The 550hp block is just freshened up stock one, the 650hp is a cemented block with stronger 28oz crank, eagle rods and SRP pistons to a 306 with a stock cam and no girdles.
Ok well better question is like I stated I have a stock short block I'll be running a out the box set of th edelbrock E street heads also I'll be running the short runner victor efi intake and as far as cam I might leave it stock since u say turbo's like them will this combo split my block and possibly how much go can I expect wit the on3 kit??
 
Posted by JohnB (Member # 969) on :
 
A spot on balance job is critical to keeping them together.
 
Posted by racsirx (Member # 1710) on :
 
quote:
Originally posted by 8lbCoupe:
quote:
Originally posted by racsirx:
The 550hp block is just freshened up stock one, the 650hp is a cemented block with stronger 28oz crank, eagle rods and SRP pistons to a 306 with a stock cam and no girdles.
Ok well better question is like I stated I have a stock short block I'll be running a out the box set of th edelbrock E street heads also I'll be running the short runner victor efi intake and as far as cam I might leave it stock since u say turbo's like them will this combo split my block and possibly how much go can I expect wit the on3 kit??
I am assuming with a 70mm turbo? The victor intake might be too big, you can easily make 450 to 550 depending on boost.
 
Posted by 8lbCoupe (Member # 11416) on :
 
Yeah I'm gonna go wit the 70mm that's in the base kit on3 offers and as far as the intake I hear it might be a bit much cuz the short runner but I jus really like the look of them is there a way I could pull it off wit that intake the heads I mentioned a stock cam and the 70mm turbo wit a tune on pump gas and keep the block alive????
 
Posted by racsirx (Member # 1710) on :
 
Well you might not see the full benefit of that intake unless you run higher boost. The victor intake is a great intake for high rpm or high boost but a turbo has a low rpm power band. I was shifting mine at 5200rpm when I ran 9s with 14lbs also with a short runner intake.
 
Posted by 8lbCoupe (Member # 11416) on :
 
When u break it down like that I understand so with that being said how would that setup perform on the street and when u mention boost u say low I was thinkin something like 8lbs hence the "8lbcoupe" I'm not lookin to amaze at the track I jus really want a street car that can line up up and hold its own aginst other typical not so extreme supercharged foxbodies
 
Posted by egobreaker5.0 (Member # 11085) on :
 
quote:
Originally posted by 8lbCoupe:
When u break it down like that I understand so with that being said how would that setup perform on the street and when u mention boost u say low I was thinkin something like 8lbs hence the "8lbcoupe" I'm not lookin to amaze at the track I jus really want a street car that can line up up and hold its own aginst other typical not so extreme supercharged foxbodies
you'll be good as long as u get a good tune and stay around 8-10 lbs..
 
Posted by racsirx (Member # 1710) on :
 
quote:
Originally posted by 8lbCoupe:
When u break it down like that I understand so with that being said how would that setup perform on the street and when u mention boost u say low I was thinkin something like 8lbs hence the "8lbcoupe" I'm not lookin to amaze at the track I jus really want a street car that can line up up and hold its own aginst other typical not so extreme supercharged foxbodies
You will be fine, also no need to go higher than 3:55 gears, turbos don't like a lot gear like a blower does.
 
Posted by 8lbCoupe (Member # 11416) on :
 
quote:
Originally posted by racsirx:
quote:
Originally posted by 8lbCoupe:
When u break it down like that I understand so with that being said how would that setup perform on the street and when u mention boost u say low I was thinkin something like 8lbs hence the "8lbcoupe" I'm not lookin to amaze at the track I jus really want a street car that can line up up and hold its own aginst other typical not so extreme supercharged foxbodies
You will be fine, also no need to go higher than 3:55 gears, turbos don't like a lot gear like a blower does.
I get the impression u know your stuff when it comes to turbo/ fords I'll probaly bug u every now and again for pointers lol [worship]
 
Posted by REDLIGHTING (Member # 11296) on :
 
ya he does. [patriot]
 
Posted by racsirx (Member # 1710) on :
 
I know a little, I just spent a lot of time working on my 70mm turbo kit so i could get into the 9s, I don't mind helping out.
 
Posted by 2BlueGeeTees (Member # 4702) on :
 
Machine work is the key to keeping the stock block together andthe amount of money it costs tothe average Joe sometimes isn't worth it. Like John said spot on balance. Radius oil passages. Remove casting flash. Stud the block. And hope to god the block likes you!
 




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