Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by: KPower

Stock engine @ 400hp - y not ?

Thread Tools
 
Search this Thread
 
Old 12-22-2016, 09:21 AM
  #1  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default Stock engine @ 400hp - y not ?

Hey,

I started my build of 400hp, as I see it, upto 7200rpm the only real weak spot is the rods, if I can tune it on the safe side with no detonation, I understand I can get away with stock pistons and stock all the rest.

How wrong am I ?

Currently I run 300hp with a turbo and injectors maxed out, I got a 6pd transmission.
I'm looknig at 1000cc injectors and 6265 with a 3" DP.

Let me know
Thanks
Elior
elior77 is offline  
Reply
Leave a poscat -11 Leave a negcat
Old 12-22-2016, 09:27 AM
  #2  
Senior Member
 
Miater's Avatar
 
Join Date: Aug 2010
Location: Arl. Texas
Posts: 936
Total Cats: 27
Default

Typing is cheap, show me with pics and vids.
Miater is offline  
Old 12-22-2016, 09:30 AM
  #3  
Senior Member
iTrader: (1)
 
Bronson M's Avatar
 
Join Date: Feb 2015
Posts: 1,104
Total Cats: 217
Default

300+ posts and you're asking this question?
Bronson M is offline  
Old 12-22-2016, 09:34 AM
  #4  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default

Come on guys, I know all stock but rods and pistons (upto 7200rpm), I know that pistons are prone to heat not torque, I would like to get a solid answer if possible.

pics and vids of what ?
elior77 is offline  
Reply
Leave a poscat -6 Leave a negcat
Old 12-22-2016, 09:35 AM
  #5  
Moderator
iTrader: (1)
 
Girz0r's Avatar
 
Join Date: Jun 2014
Location: Austin, TX
Posts: 3,033
Total Cats: 324
Default

Originally Posted by elior77
Hey, ... How wrong am I ?


Jokes aside, since you know you need rods... just do pistons as well. Throw in some ACL bearings while it's apart too
Girz0r is offline  
Old 12-22-2016, 09:40 AM
  #6  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default

patsmx5 gave me some input about stock pistons that can handle 350~ no det.
elior77 is offline  
Reply
Leave a poscat -5 Leave a negcat
Old 12-22-2016, 10:10 AM
  #7  
Elite Member
iTrader: (4)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 4,648
Total Cats: 544
Default

what is happening.
psyber_0ptix is offline  
Old 12-22-2016, 10:49 AM
  #8  
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,892
Total Cats: 399
Default

Christmas makes some people crazy.
TurboTim is offline  
Old 12-22-2016, 10:57 AM
  #9  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default

Hanuka here.
elior77 is offline  
Reply
Leave a poscat -7 Leave a negcat
Old 12-22-2016, 11:05 AM
  #10  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,650
Total Cats: 3,010
Default

Mele Kalikimaka!
sixshooter is offline  
Old 12-22-2016, 11:17 AM
  #11  
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
Default

Pat cracked a piston at 300 something.

If you have to ask this question you probably won't be able to tune it well enough lol.
aidandj is offline  
Old 12-22-2016, 11:23 AM
  #12  
Elite Member
iTrader: (6)
 
ryansmoneypit's Avatar
 
Join Date: Feb 2013
Location: A cave in Va
Posts: 3,395
Total Cats: 456
Default

The only downsides I see here are:

Breaking a stock rod and having it sweep through the engine, ruining everything except the intake and exhaust manifolds. Real possibility.
The above happens on a public roadway, coating the road with oil sending you spinning into a telephone pole and you die. Same goes for the next few cars behind you. Another real possibility IMO.
ryansmoneypit is offline  
Old 12-22-2016, 11:38 AM
  #13  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

ugh, another one
18psi is offline  
Old 12-22-2016, 11:51 AM
  #14  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default

Originally Posted by aidandj
Pat cracked a piston at 300 something.

If you have to ask this question you probably won't be able to tune it well enough lol.
I can tune all right, I did more then a few high power cars.

Still no real answer why no stock pistons.
elior77 is offline  
Reply
Leave a poscat -6 Leave a negcat
Old 12-22-2016, 12:02 PM
  #15  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,099
Default

Because you'll break one in half at 400whp.

The rods are not the only weak point. They are just the first weak point. There are several others at 400whp.
Savington is offline  
Old 12-22-2016, 12:05 PM
  #16  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

Originally Posted by elior77
I can tune all right, I did more then a few high power cars.

Still no real answer why no stock pistons.
Your approach is retarded. Youre like the typical village idiot that proposes something absurd, and then no matter what people say you're simply too ignorant and stubborn to actually take the input.

Nothing we say will change your mind.

So then just go for it. Don't keep theorizing and making stupid threads asking "Y NO 400?".....why not 500? why not 600? heck, just go for 1200hp on stock block.

If you're so smart, and such a great tuner, then go do it. Clearly us telling you that you'll blow it up is not sufficient, so instead of repeating the question, just go do it, and prove us all wrong, and post up info on getting it done.
18psi is offline  
Old 12-22-2016, 12:28 PM
  #17  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default

Originally Posted by Savington
Because you'll break one in half at 400whp.

The rods are not the only weak point. They are just the first weak point. There are several others at 400whp.
How would the weak points list would look like?
elior77 is offline  
Reply
Leave a poscat -6 Leave a negcat
Old 12-22-2016, 12:29 PM
  #18  
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
Total Cats: 1,866
Default

Here is a wealth of information
aidandj is offline  
Old 12-22-2016, 12:50 PM
  #19  
Junior Member
 
BMWidmer's Avatar
 
Join Date: Oct 2010
Location: LI, NY
Posts: 110
Total Cats: 12
Default

If you put on a BW EFR 9180 it will force so much air that it will keep the piston cool :/
BMWidmer is offline  
Old 12-22-2016, 12:52 PM
  #20  
Senior Member
Thread Starter
 
elior77's Avatar
 
Join Date: Nov 2012
Location: Israel
Posts: 650
Total Cats: -481
Default

Good point
elior77 is offline  
Reply
Leave a poscat -5 Leave a negcat



All times are GMT -4. The time now is 12:57 PM.