Long Awaited Turbo build...

[GB10]

Lightblade, what was the fuel pump duty cycle on the 12psi tune? I'm just wondering how well your fuel pump and wiring upgrade is working.

 

[JeremyH]

Lightblade, what was the fuel pump duty cycle on the 12psi tune? I'm just wondering how well your fuel pump and wiring upgrade is working.

75% at 12psi, Mike and I talked about that too, and were glad to see duty cycles there at that power level.
On a side note, the iat's were within a few degress of ambient at 12 psi also.

 

[GB10]

75% at 12psi, Mike and I talked about that too, and were glad to see duty cycles there at that power level. On a side note i did mention yet that iat's were within a few degress of ambient at 12 psi also.

That's without a BAP, right? Intercooler must be working well too if the iat is that close to ambient.

 

[JeremyH]

That's without a BAP, right? Intercooler must be working well too if the iat is that close to ambient.

Yeap no bap, just 2 ford gt pumps on the oem hat, oem fpdm, with wire upgrade.

Yeah it was doing great, then again it is a huge intercooler (4.5" thick) granted Mike said its going to be alittle hotter on the street, hood closed no fan on it, etc.

 

[US-1]

How far can we push the stock crank? Congrats again!

i hear 600 or so but not sure exactly

Hmm Trying to think if I could get by with just forged rods and pistons or if the forged crank is something I should do why its torn down...Want 600rwhp eventually

If youre in there already then you might as well replace everything at once.

I am Anthony Gonzalez and I approve this message

+1...almost always better to overbuild for safety.

i would wile i was in there

Engine builders love stupid shit like this. Just another reason to sell you guys a damn crankshaft you don't need.

 

[JeremyH]

I was wondering when you would pick up those remarks SD lol

 

[rford426]

So...Rods and pistons would be okay ??? Thanks SD for CLEARING everything up!!!

 

[zuritausmc]

So...Rods and pistons would be okay ??? Thanks SD for CLEARING everything up!!!

Well you dont NEED a safety loop on a driveshaft. You also dont NEED an intercooler on a turbo. So have at it. Like I said I would do everything while I was in there in case you decide to take the car further then youre already set up. But hey thats just my preference.

 

[JeremyH]

So...Rods and pistons would be okay ??? Thanks SD for CLEARING everything up!!!

No one listens to me lol.

 

[one eyed willy]

i did rods/pistons only and im on the stock crank, used that $600 bucks for something else....it really depends on what your going for, and how reasonable the cost is in relation to the benefits.....600hp to the wheels has never been a issue on a stock crank, not even 800 to the wheels to my knowledge....but for me, my goal was only 600 so it would just be a waste of money......plus ,just because you buy a new crank, dosnt mean its better, if you get a new crank that is out of spec....it can cause you more problems in the end....i got one buddy who got one out of spec and it cost him a new rebuild when he had less than 500 miles on it, tmcolegr is currently doing a build and the crank journels were cut too small , so he had to machine the rods.

i personally live by the keep it simple rule and if it aint broke,dont fix it,lol.

 

[JeremyH]

Well you dont NEED a safety loop on a driveshaft. You also dont NEED an intercooler on a turbo. So have at it. Like I said I would do everything while I was in there in case you decide to take the car further then youre already set up. But hey thats just my preference.

I agree you dont ever need a driveshaft safety loop, but its a requirement at certain levels at most tracks, and yes you dont need an intercooler but it WILL effect performance. The fact is the stock crank is going to take what ever power you throw at it, and is no where near a weak link in the engine.

 

[zuritausmc]

I agree you dont ever need a driveshaft safety loop, but its a requirement at certain levels at most tracks, and yes you dont need an intercooler but it WILL effect performance. The fact is the stock crank is going to take what ever power you throw at it, and is no where near a weak link in the engine.

I wouldnt say any lol But I see what you guys are saying.

But in my point a view I would do it. Just cause I know how I am. Once I make it fast, then it just needs to be faster. So Id rather prep myself for that and not have to retrace my steps. Just like when I had 60lb injectors to push 400hp lol but now Im at 480 and theyre just fine

 

[one eyed willy]

I wouldnt say any lol But I see what you guys are saying.

But in my point a view I would do it. Just cause I know how I am. Once I make it fast, then it just needs to be faster. So Id rather prep myself for that and not have to retrace my steps. Just like when I had 60lb injectors to push 400hp lol but now Im at 480 and theyre just fine

yup,thats a good point as well!

 

[JeremyH]

I wouldnt say any lol But I see what you guys are saying.

But in my point a view I would do it. Just cause I know how I am. Once I make it fast, then it just needs to be faster. So Id rather prep myself for that and not have to retrace my steps. Just like when I had 60lb injectors to push 400hp lol but now Im at 480 and theyre just fine

I hear ya too, nothing wrong with that mentality. But plain and simple these cast cranks have been proven to 1000hp, Just like the stock block.
Its prolonged high rpm that can cause problems with the oem crank.

 

[Towelly]

I hear ya too, nothing wrong with that mentality. But plain and simple these cast cranks have been proven to 1000hp, Just like the stock block.
Its prolonged high rpm that can cause problems with the oem crank.

Says who? SD?

 

[JeremyH]

Says dyno pulls and vids lol

Like I said before the crank will take all the power you want to throw at it, something else will fail long before the crank.

 

[one eyed willy]

Says who? SD?

how many broken cranks have you seen? (not asking in a smart ass way...just actually curious if you have seen a failure?) i have not seen or heard of a single failure other than one guy who was running a pro charger and snout got screwed up some how....

 

[zuritausmc]

how many broken cranks have you seen? (not asking in a smart ass way...just actually curious if you have seen a failure?) i have not seen or heard of a single failure other than one guy who was running a pro charger and snout got screwed up some how....

I actually havent heard one either

 

[Towelly]

how many broken cranks have you seen? (not asking in a smart ass way...just actually curious if you have seen a failure?) i have not seen or heard of a single failure other than one guy who was running a pro charger and snout got screwed up some how....

This could be because most people who build there bottom end also swap out the crank to a aftermarket crank? How many people do you know, besides 3 people here, that actually use the stock crank in a build? Maybe a half a dozen?

I'm not saying its not true. But, when the rod's are the weak link, of coarse the crank isn't going to go first. I've never seen a stock crank go. So I don't know either. But, what I'm saying is, not many people use a stock crank in high horsepower builds either. May I have a link to builds using the stock crank other than you three here?

P.S. - I'm not trying to start a huge argument or contradict any of you. I just want to know if more people than I know are running the stock crank on a otherwise built shortblock.

 

[one eyed willy]

This could be because most people who build there bottom end also swap out the crank to a aftermarket crank? How many people do you know, besides 3 people here, that actually use the stock crank in a build? Maybe a half a dozen?

probably more than you think......so you havnt heard of any failures either? i woundnt have used the stock crank if i hadnt researched it first....

i dont want to turn this into a pissing match and ruin a good thread.