750hp recipe

[hungerbuhler1]

$9,000,I did all the work. I freshend up the motor with lighter pistons and a girdle 5 years ago. Put a roller in and a 6776 a year later. Switched to E85 last year. I do run 28 lbs of boost to make big power,but I don't do this all the time. It revs like crazy,pulls like crazy,and refuses to do anything but. By anything ,I mean break. There's nothing special about this motor. The learning curve was that I put it together and it stays together.

As far as highjacking this thread is concerned,the OP is looking for advise and,without understanding what his goal is,many are telling him not to do it and it can't be done. I advised him that the stock crank and rods are pretty good pieces for his goal. It sure has been good to me and others. I'll add Girdle it, get some J&E pistons,a 45a turbo,a 212/212 roller,120 lb/hr injectors,a modded ECM,a Translator GenII,anLS1 3.5" MAF,an Extender Extreme chip,Red's Doublepumper,and E85.

The 45a is a great turbo but it wont go the 750hp. It went 610 whp. I dont know what the hp at the crank would be but probably not the 750. We just tested this on my combo and i ordered a new turbo to push farther. I think the most boost we saw was 27#'s. Anything after that # it didnt gain power. We were measuring back pressure during test just to see how far it would go.

Then again i shouldnt say "we" cause i just paid for this to be done on the dyno. And im not a true car guy. But......... my money and trail of combos might have some help to someone wanting to build their dream themselves.

 

[Ernie GN]

And after all this no one gave the guy a list of parts to change to make his engine 750 horsepower capable. Haha. Everyone spent their time mostly talking about how much it cost.

Anyway almost every single part Sold now is sold with a horsepower rating.
Does it mean that's what your engines going to make but at least you know what it's capable of and that's the answer to your question simple as that.
Look for vendors that sell parts at or above your horsepower wish.

end of story

 

[dank GN]

I just dynoed my car You can see what I have done in my signature . It’s defiantly not going to be cheap

 

[dank GN]

Here is a production block that was making 580rwhp . It had billet center . Stock crank and rods and a lot of other stuff . And I can tell you that this was about my 3rd 109 block so when all these ppl are commenting about it it’s because they have broken a block or 3 like me .

once u start going through them then u can make a cool table or a boat anchor lol jk

 

[Turbo Keith]

You got a BEAST of a car Dank

 

[dank GN]

You got a BEAST of a car Dank

Thanks bud a lot of time and $ went into it but it’s starting to pay off for me .

 

[Turbo Keith]

I haven't had my car on a dyno , But just guessing at 26 to 28 lbs of boost I'm hoping 450 to 475 .

 

[Ernie GN]

I just dynoed my car You can see what I have done in my signature . It’s defiantly not going to be cheap View attachment 313770

Look at all that torque

 

[TURBOELKY]

And after all this no one gave the guy a list of parts to change to make his engine 750 horsepower capable. Haha. Everyone spent their time mostly talking about how much it cost.

Anyway almost every single part Sold now is sold with a horsepower rating.
Does it mean that's what your engines going to make but at least you know what it's capable of and that's the answer to your question simple as that.
Look for vendors that sell parts at or above your horsepower wish.

end of story

This thread is 5 years old guys.

 

[dank GN]

Look at all that torque

When the dyno looses the rpm signal it spikes up . It is prob around 615-620 ft lbs in reality

 

[Ernie GN]

This thread is 5 years old guys.

Yeah.
I find some good reading sometimes.
This was a good one haha

 

[Mr.Spool]

Problem with a lot of guys on here now is just that they only read.with the right builder and tuner you can make a lot of power and get a lot of time on the 109 stuff.

 

[Mr.Spool]

Here is a production block that was making 580rwhp . It had billet center . Stock crank and rods and a lot of other stuff . And I can tell you that this was about my 3rd 109 block so when all these ppl are commenting about it it’s because they have broken a block or 3 like me .View attachment 313777 View attachment 313776 View attachment 313775 once u start going through them then u can make a cool table or a boat anchor lol jk View attachment 313774

Something else must have been going on there.i have seen a lot more power made even with the stock shortblock.

 

[dank GN]

Something else must have been going on there.i have seen a lot more power made even with the stock shortblock.

This block was making 580rwhp on a stock crank and rods . what was going on was the crank was flexing all over the place and the weakest link failed . I’m sure your real knowledgeable on these motors and know that there is only so much that a stock rotating assembly with 2 center caps can take and I would say it was right at the limit .

 

[turbo89]

Something else must have been going on there.i have seen a lot more power made even with the stock shortblock.

Sure .. Totally Agree .. .. question is .. how many times .. 10 ?? 20 ? 50 ? its a timebomb @ 750hp with a stock shortblock .. don't let anyone KID you .
And I don't care who tunes it or what kind of magical spell they put on it .. It's not gonna live long ... PERIOD.

I took another application to 700 when they typically live to 500 .. Sure it took 700 for a while .. but I've lost the same application @ 550 hp ..

If you want it to live a stock Crank in a 750 hp application is just WRONG .. even with a perfect tune that crank is not upto the task

just my opinion but if 750 hp is your goal .. don't mess around .. either STAGE it .. or LSx it !

 

[Chuck Leeper]

Ernie GN has it down.. Just buy parts that say "750 hp" on them, and all will be ok.....
One of the best in the biz, Jim Ruggles, told me when he built my first 109, " look for 600 at the crank...for a while". Then, expect to join the DOTC club.

 

[Mike T]

I just dynoed my car You can see what I have done in my signature . It’s defiantly not going to be cheap View attachment 313770

Great job! Post up the full screen shot I'd like to see RPM.

 

[BEATAV8]

Kinda interesting how that one cracked the front main. I woulda expected #2 or #3 to go first. Maybe steel caps on the middles helped keep them together.

 

[dank GN]

Great job! Post up the full screen shot I'd like to see RPM.

 

[dank GN]

Great job! Post up the full screen shot I'd like to see RPM.

As I stated It was runing out of fuel so right at 6000 is where it would go stupid lean .