Hyper Pistons with a turbo? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-11-2013, 02:52 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
Hyper Pistons with a turbo?

Anyone done this before? I got a set of brand new kb silvolites dish pistons laying around the garage, wondering if its worth running on a low boost engine something around 5-7 psi maybe 10ish. cr with the heads sould be in the 8:2something area. I can get a part number later today.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-11-2013, 03:11 PM
T-bucket23's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 57
Posts: 5,097
Wiki Edits: 26

Thanks: 7
Thanked 103 Times in 88 Posts
Quote:
Originally Posted by bottlefed55gasser View Post
Anyone done this before? I got a set of brand new kb silvolites dish pistons laying around the garage, wondering if its worth running on a low boost engine something around 5-7 psi maybe 10ish. cr with the heads sould be in the 8:2something area. I can get a part number later today.
If you want it to live you should run forged pistons. Starting at 8:2 is fairly safe if you keep the boost down. If you detonate them they will break.
__________________
Artificial Intelligence is no match for Natural Stupidity



Chet
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-11-2013, 03:28 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
Yeah I've heard these pistons tend to shatter pretty easily.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-11-2013, 03:34 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
I forgot to mention they are for a 383 stroker.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-11-2013, 03:36 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,560
Wiki Edits: 0

Thanks: 3
Thanked 335 Times in 332 Posts
Detonation will bust a forged piston too. It just fails differently.
Most all OEM cars that are turbo charged or supercharged use a cast or hyper piston.

If you hammer on any piston hard enough-long enough it will fail.

The boost is not hard on a piston. Detonation is. A failed piston always means you did something wrong.

Many many sucessfull supercharged-turboed motors have been built and run with KB hypers.

If you try hard enough you will find a way to bust one.

Can you build a turbo motor that won't hammer it self to death?

Are you willing to put decent gas in the tank? there is no free lunch.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-11-2013, 03:40 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
Run 93 pump gas, wouldn't mind doing water meth too.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-11-2013, 03:44 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
Throw a few gallons of race gas on the weekend mixed with 93.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-11-2013, 04:02 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
But the more I can just run on 93 and use a water meth kit the better!
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-11-2013, 05:20 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 7,429
Wiki Edits: 0

Thanks: 292
Thanked 709 Times in 684 Posts
how many turbos? are you planning on 750 plus hp?
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-11-2013, 09:07 PM
Registered User
 
Join Date: Nov 2012
Posts: 57
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
Just a single, no more then 500 550. I just want a really fun street car that will run 11's and can drive it anywhere and everywhere.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 02-11-2013, 10:16 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,560
Wiki Edits: 0

Thanks: 3
Thanked 335 Times in 332 Posts
A roots blown motor is a lot more fun.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 02-11-2013, 11:11 PM
spinn's Avatar
Fought beside and with you 92'
 

Last journal entry: This makes a huge difference
Last photo:
Join Date: Oct 2004
Location: midwest
Posts: 2,381
Wiki Edits: 0

Thanks: 11
Thanked 78 Times in 76 Posts
You can run 5-7 psi on stock cast pistons without worry. 7 is pushing the safe limits. You can do it.

Do not detonate. Play the curve safe.

A roots is the cheapest way possible to get that level of power.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 02-11-2013, 11:58 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,560
Wiki Edits: 0

Thanks: 3
Thanked 335 Times in 332 Posts
The only way you will break a cast piston in a blower motor is either detonation or ring end butting.
Avoid both and they will take a lot of boost.
When combustion is normal its not hard on the piston.

The top ring end gap has to be bigger with a KB piston in a blown motor.
Build and tune the supercharged engine so it does not knock under WOT boost and
the pistons will out live you.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 02-12-2013, 06:36 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 8,693
Wiki Edits: 0

Thanks: 17
Thanked 283 Times in 263 Posts
Quote:
Originally Posted by spinn View Post
You can run 5-7 psi on stock cast pistons without worry. 7 is pushing the safe limits. You can do it.

Do not detonate. Play the curve safe.

A roots is the cheapest way possible to get that level of power.
I'm not sure why you think a roots blower is the cheaepst route, or why Fbird think that they're more fun. There are a LOT of ways to make good power, some cheaper and some more costly.

Nothing wrong with a roots blower but is far from the only show on the block.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 02-12-2013, 06:45 AM
spinn's Avatar
Fought beside and with you 92'
 

Last journal entry: This makes a huge difference
Last photo:
Join Date: Oct 2004
Location: midwest
Posts: 2,381
Wiki Edits: 0

Thanks: 11
Thanked 78 Times in 76 Posts
To tear apart a engine , get a cam , heads is more expensive. A roots 144 is under $1000. You can easily double the output of a stock 290hp long block.

A good piston , cam, head combo cannot take that pepsi challenge.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Speed pro hyper pistons ok for circle track? maxpower_454 Engine 16 05-27-2009 06:58 AM
What endgap should I use on Hyper Speed pro 350 flattop pistons? eric32 Engine 3 02-24-2009 05:12 PM
What are the lightest SBC Hyper Pistons Double_v23 Engine 11 04-04-2008 05:04 PM
Chevy 383 What cam to run???? Also Forged or hyper pistons?? 89SDime Engine 19 02-27-2006 11:59 PM
hyper ereutectic pistons 67 stang Engine 11 04-10-2003 10:34 PM


All times are GMT -6. The time now is 08:04 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.