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Engine Block Hp Rating

  • Thread starter Thread starter boosted_95
  • Start date Start date Jan 11, 2015

what color should i paint the car

  • gloss black with flat black racing stripes

    Votes: 1 50.0%
  • black with grabbler blue race stripes

    Votes: 0 0.0%
  • grabbler blue with black race stripes

    Votes: 1 50.0%

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boosted_95

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Jan 11, 2015
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#1
  • Jan 11, 2015
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I have a 95 5.0 thats going to have twin turbos on it. Ive been reading that the block is only rated to 400-500 hp. Anyone know of anyway to increase the hp that it can withstand?
 
D

Dacon

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Nov 6, 2005
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Jan 12, 2015
#2
  • Jan 12, 2015
  • #2
Buy a dart block/strong aftermarket block.
 
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90lxwhite

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#3
  • Jan 14, 2015
  • #3
boosted_95 said:
I have a 95 5.0 thats going to have twin turbos on it. Ive been reading that the block is only rated to 400-500 hp. Anyone know of anyway to increase the hp that it can withstand?
Click to expand...
Aftermarket block required I believe. How much horsepower do you think you'll be making? Are building an engine or adding turbos to an old one? How many miles is on it? What heads are you using? If you're wanting super huge power and are gonna use turbos to do it, you pretty much have to start from scratch and build the motor specifically for turbo use. Starting with a new block.
Ps: no stripes
 
Last edited: Jan 14, 2015

85rkyboby

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#4
  • Jan 14, 2015
  • #4
Depends on what you're doing with the car. Strictly drag, sure it might make a couple good passes as long as your tune is on point. If you need daily drive-ability with reliability then go aftermarket and blueprint the motor for Christ sakes. Stock motor with more than 480HP or so I'd be worried. Dart SHP 1200+HP, no worry. Again, as long as you have a good tune.
 

90lxwhite

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#5
  • Jan 14, 2015
  • #5
One more thing: if we're talking about block splitting horsepower if transmission is stock it'll go before the block does.
Oh and I mention no to the stripes
 
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85rkyboby

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#6
  • Jan 14, 2015
  • #6
Some people might suggest a girdle, while that might seem logical. It doesn't really help the mains from splitting, more or less just holds them together while they split. The Darts are good due to thick cylinder walls, better oil flow, and four bolts on the #2, #3, and #4 mains.
 

90lxwhite

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  • Jan 15, 2015
  • #7
85rkyboby said:
Some people might suggest a girdle, while that might seem logical. It doesn't really help the mains from splitting, more or less just holds them together while they split. The Darts are good due to thick cylinder walls, better oil flow, and four bolts on the #2, #3, and #4 mains.
Click to expand...
Hm a girdle huh, that's a new one for me. I see the concept though, pretty much holds the "shrapnel" in?
 

85rkyboby

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#8
  • Jan 15, 2015
  • #8
90lxwhite said:
Hm a girdle huh, that's a new one for me. I see the concept though, pretty much holds the "shrapnel" in?
Click to expand...
Yep, I guess it could save something. Just not sure what ha-ha.
 

Noobz347

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#9
  • Jan 15, 2015
  • #9
*waves magic wand on above post to fix the quote*


They help spread the load caused by piston/rod deflection as the crank rotates. This is nice for you high compression solid cam types that like to turn a lot of RPM or folks who have a turbo that's builds gradually.

Torque is what breaks these blocks. Making HP very quickly. It's starts in the lifter valley and if allowed to continue proceeds right through the mains.

Not long ago main stud girdles were all the rage. Trouble was that people were using them for the wrong reasons. Drag cars need to make a lot of HP quickly. Torque... Take a small cardboard box and twist each end in opposite directions slightly. A girdle will not stop this. The thing would have to be two inches tall even to begin.

It does help keep the two halves together for sure. hehe I don't think that this was its intended purpose either. :rofl:

Stud girdles do have a purpose but it wasn't supposed to keep the block from twisting.
 
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Noobz347

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#10
  • Jan 15, 2015
  • #10
Wait.... I nearly forgot one of my favorite questions:

boosted_95 said:
I have a 95 5.0 thats going to have twin turbos on it. Ive been reading that the block is only rated to 400-500 hp. Anyone know of anyway to increase the hp that it can withstand?
Click to expand...


Why this specific number? What exactly are you trying to achieve?

Is that fly wheel HP or Rear Wheel HP? If you know the answer to that question then you must also know why this HP number is necessary to hit your goal.

More simply:

What do want the car to do? What are you willing to spend to make that happen?
 

90lxwhite

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#11
  • Jan 15, 2015
  • #11
Noobz347 said:
Wait.... I nearly forgot one of my favorite questions:




Why this specific number? What exactly are you trying to achieve?

Is that fly wheel HP or Rear Wheel HP? If you know the answer to that question then you must also know why this HP number is necessary to hit your goal.

More simply:

What do want the car to do? What are you willing to spend to make that happen?
Click to expand...
I think maybe he's trying to beat an Accord?
Noobz347 said:
*waves magic wand on above post to fix the quote*


They help spread the load caused by piston/rod deflection as the crank rotates. This is nice for you high compression solid cam types that like to turn a lot of RPM or folks who have a turbo that's builds gradually.

Torque is what breaks these blocks. Making HP very quickly. It's starts in the lifter valley and if allowed to continue proceeds right through the mains.

Not long ago main stud girdles were all the rage. Trouble was that people were using them for the wrong reasons. Drag cars need to make a lot of HP quickly. Torque... Take a small cardboard box and twist each end in opposite directions slightly. A girdle will not stop this. The thing would have to be two inches tall even to begin.

It does help keep the two halves together for sure. hehe I don't think that this was its intended purpose either. :rofl:

Stud girdles do have a purpose but it wasn't supposed to keep the block from twisting.
Click to expand...
Where'd you learn that?
 

Noobz347

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#12
  • Jan 15, 2015
  • #12
90lxwhite said:
I think maybe he's trying to beat an Accord?

Where'd you learn that?
Click to expand...


The magic wand part? It's a gift.
 
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90lxwhite

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#13
  • Jan 15, 2015
  • #13
Noobz347 said:
The magic wand part? It's a gift.
Click to expand...
Ha nah about the girdles and sht
 

Noobz347

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#14
  • Jan 15, 2015
  • #14
90lxwhite said:
Ha nah about the girdles and sht
Click to expand...


Some trial and error, a few magazine articles, discussions here and other forums, but mostly from a white paper that accompanied the girdle that I bought from CHP many moons ago.

It's what started me into looking to see what they were actually good for. I'm pretty sure I still have the girdle. I was going to use it right up until the point where I ordered a Dart Sportsman.

Pretty sure I have a set of lifter valley girdles lying around somewhere too.
 
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90lxwhite

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#15
  • Jan 15, 2015
  • #15
Noobz347 said:
Some trial and error, a few magazine articles, discussions here and other forums, but mostly from a white paper that accompanied the girdle that I bought from CHP many moons ago.

It's what started me into looking to see what they were actually good for. I'm pretty sure I still have the girdle. I was going to use it right up until the point where I ordered a Dart Sportsman.

Pretty sure I have a set of lifter valley girdles lying around somewhere too.
Click to expand...
I'm gonna have to do a google image search. Were they pricey and have you heard of anyone using one recently?
 
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90lxwhite

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#16
  • Jan 15, 2015
  • #16
This thing? Looks a lil hokey. Not what I saw in my minds eye.
 

85rkyboby

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#17
  • Jan 15, 2015
  • #17
That's it.
 

90lxwhite

I'm kind of a She-Man
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#18
  • Jan 15, 2015
  • #18
Noobz347 said:
Wait.... I nearly forgot one of my favorite questions:




Why this specific number? What exactly are you trying to achieve?

Is that fly wheel HP or Rear Wheel HP? If you know the answer to that question then you must also know why this HP number is necessary to hit your goal.

More simply:

What do want the car to do? What are you willing to spend to make that happen?
Click to expand...
I know the answer to all of the above: He's 19 yrs old.
 
Last edited: Jan 16, 2015

addermk2

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#19
  • Jan 28, 2015
  • #19
90lxwhite said:
I know the answer to all of the above: He's 19 yrs old.
Click to expand...
Probably bought the $300 ebay twin turbo kit that puts the turbos through the hood.
 

90lxwhite

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#20
  • Jan 29, 2015
  • #20
addermk2 said:
Probably bought the $300 ebay twin turbo kit that puts the turbos through the hood.
Click to expand...
Remember the "tornado"? The thing you put in your air intake pipe that supposedly made the air spin as it entered the throttle body there for making more power? I almost bought one when I was 16 for my 87 crx. I think that was around 1998. Gimmicks.. Sheesh
 
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