This really an inverted dome piston? - Page 2 - 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
  #16 (permalink)  
Old 04-09-2013, 03:17 PM
camaroman7d's Avatar
Member
 
Last photo:
Join Date: Dec 2003
Location: Vacaville, California
Age: 47
Posts: 2,245
Wiki Edits: 0

Thanks: 3
Thanked 9 Times in 9 Posts
I like your plan, stick to it.

Yes, they make those Wiseco pistons for 5.7" rods too. J&E also makes some as well, I have them in my other engine.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #17 (permalink)  
Old 04-09-2013, 03:28 PM
Registered User
 
Last photo:
Join Date: Aug 2011
Location: NorthRichlandHills, TX
Posts: 459
Wiki Edits: 0

Thanks: 132
Thanked 7 Times in 7 Posts
Quote:
Originally Posted by camaroman7d View Post
I like your plan, stick to it.

Yes, they make those Wiseco pistons for 5.7" rods too. J&E also makes some as well, I have them in my other engine.
Supposed to be getting a call from MAHLE after they check the shelf stock. If they tell me that im going to have to wait for some to be made im getting those wisecos

Thanks for liking my plan lol I haven't got a lot of positive feedback about the build . I think its going to be a fun low-mid rpm motor.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 04-10-2013, 10:23 AM
Registered User
 
Last photo:
Join Date: Aug 2011
Location: NorthRichlandHills, TX
Posts: 459
Wiki Edits: 0

Thanks: 132
Thanked 7 Times in 7 Posts
Well the tech for CNC motorsports is SERIOUSLY trying to talk me out of the D shaped dish. Said the only reason the D shaped dish is common right now is for COST reasons, it is cheaper to make the D shape.
Sais the quench pad will make absolutely ZERO difference for flame travel or chamber mirror. Actually he said the full circle dish is the best for flame travel and efficiency AND detonation resistance. The MAHLES that I want are NOT available apparently.
Also the wisecos are 650$, the MAHLES are 750$. He said its going to cost me MORE to get the wisecos over the mahles because they are not a dealer for wiseco.
Then he told me that he could issue a 400$ credit for the return of the mahles. FOUR HUNDED DOLLARS! Lets do the math, My total bill for crank, rods, pistons, bearings, rings, and shipping was 1,783$ that makes 1,383 with the 400$ credit for pistons.
Minus 650$ for crank makes 733$, minus 418$ for rods makes 315$

315$ for some bearings? I relize they need to make some money but seems like this is starting to look like a bad deal. Really? you send me the wrong pistons and I have to pay for return shipping?

Also I gave him the part number for the wisecos and he said he couldn't get them. He told me that they are putting out over 25 engines a month and I shouldn't have any worry about the full circle dish. Thing is, that's what I want, and what I called ahead to ask for, specifically.
Thanks for letting me rant as I just got off the phone with CnC, Now I get to figure out what to do next
Reply With Quote Quick reply to this message
  #19 (permalink)  
Old 04-10-2013, 11:44 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 8,957
Wiki Edits: 0

Thanks: 17
Thanked 315 Times in 295 Posts
return it all and eat the cost of shipping. Sucks that you have to pay for shipping but it'd probably your best route out of this mess.
Reply With Quote Quick reply to this message
  #20 (permalink)  
Old 04-10-2013, 02:19 PM
Registered User
 
Last photo:
Join Date: Aug 2011
Location: NorthRichlandHills, TX
Posts: 459
Wiki Edits: 0

Thanks: 132
Thanked 7 Times in 7 Posts
Called Wiseco and they actually do not make Camaro Mans pistons for a 5.7 rod. I don't want to have to pay shipping when THEY sent me the wrong piston. Shizzt happens though. Still haven't found a piston to buy.
Reply With Quote Quick reply to this message
  #21 (permalink)  
Old 04-10-2013, 02:35 PM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 8,957
Wiki Edits: 0

Thanks: 17
Thanked 315 Times in 295 Posts
why the overkill for a low rpm engine anyway? Did I read that you're going NA? Seems like a lot of money for something you really don't need.

Not that it hurts anything but its just WAY overkill.
Reply With Quote Quick reply to this message
  #22 (permalink)  
Old 04-10-2013, 03:25 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,852
Wiki Edits: 326

Thanks: 750
Thanked 969 Times in 817 Posts
Quote:
Originally Posted by 0trbo4myCHEVUICK View Post
Well the tech for CNC motorsports is SERIOUSLY trying to talk me out of the D shaped dish. Said the only reason the D shaped dish is common right now is for COST reasons, it is cheaper to make the D shape.
Sais the quench pad will make absolutely ZERO difference for flame travel or chamber mirror. Actually he said the full circle dish is the best for flame travel and efficiency AND detonation resistance. The MAHLES that I want are NOT available apparently.
Also the wisecos are 650$, the MAHLES are 750$. He said its going to cost me MORE to get the wisecos over the mahles because they are not a dealer for wiseco.
Then he told me that he could issue a 400$ credit for the return of the mahles. FOUR HUNDED DOLLARS! Lets do the math, My total bill for crank, rods, pistons, bearings, rings, and shipping was 1,783$ that makes 1,383 with the 400$ credit for pistons.
Minus 650$ for crank makes 733$, minus 418$ for rods makes 315$

315$ for some bearings? I relize they need to make some money but seems like this is starting to look like a bad deal. Really? you send me the wrong pistons and I have to pay for return shipping?

Also I gave him the part number for the wisecos and he said he couldn't get them. He told me that they are putting out over 25 engines a month and I shouldn't have any worry about the full circle dish. Thing is, that's what I want, and what I called ahead to ask for, specifically.
Thanks for letting me rant as I just got off the phone with CnC, Now I get to figure out what to do next
If David Vizard or one of the engine builders on this forum told me what this kid is tellin' you, then I would believe what they said. But a kid on the phone is the same to me as a kid at Autozone or Summit or any other parts supplier. What the hell do they know? They're just tryin' to stuff parts down your throat and make a profit.
Reply With Quote Quick reply to this message
  #23 (permalink)  
Old 04-10-2013, 03:38 PM
Registered User
 
Last photo:
Join Date: Aug 2011
Location: NorthRichlandHills, TX
Posts: 459
Wiki Edits: 0

Thanks: 132
Thanked 7 Times in 7 Posts
I am going to hit with some nitrous.
This has been a pretty big mess I think im going to return it all and buy this 468 bigblock for 3000$
Reply With Quote Quick reply to this message
  #24 (permalink)  
Old 04-10-2013, 06:35 PM
Registered User
 
Join Date: Nov 2004
Location: California
Age: 67
Posts: 828
Wiki Edits: 0

Thanks: 27
Thanked 21 Times in 19 Posts
Now, THAT sounds like a solution! Shame you've been worked over like this.

Pat
Reply With Quote Quick reply to this message
  #25 (permalink)  
Old 04-12-2013, 10:59 AM
Registered User
 
Last photo:
Join Date: Aug 2011
Location: NorthRichlandHills, TX
Posts: 459
Wiki Edits: 0

Thanks: 132
Thanked 7 Times in 7 Posts
Okay, MAHLE is swapping out the pistons for some 6" rod pistons with the D shape and no rail. They are very nice about the situation and paying for shipping both ways.
I have to swap my 5.7 rods with CnC motorsports, and I have to pay for shipping both ways. Would have been nice of them to pay atleast one way, Since I did not get the product they assured me I was getting. No biggie I s'pose, as long as its getting resolved.
I will defiantly think twice before ordering from CnC again. Customer service is very rude, they don't care about correcting their mistake unless its no cost to them. Also, I did the math, Really didn't save hardly any money at all going with the full kit through them. Sure didn't save any money now that im having to pay shipping costs to correct their mistake.
Reply With Quote Quick reply to this message
  #26 (permalink)  
Old 04-12-2013, 12:35 PM
Registered User
 
Last photo:
Join Date: Jun 2010
Location: Syracuse, NY
Posts: 2,143
Wiki Edits: 0

Thanks: 424
Thanked 216 Times in 195 Posts
This is why I hate buying through intermediaries. A whole lot of fingerpointing and in the end you're the one thats gonna get reamed. Sucks.

And Im still the 'kid' at the parts business; so I see both sides, Im lucky that my boss tends to under-promise and over-deliver, especially if customers with returns are nice about it.

Is CNC that WISSOTA-based roundy-round company thats in MT or SD?

If you dont live within a couple hundred miles of them; Im sure theres a local guy who would be more than happy to have your business.

Hell if you insist on buying parts from a guy you don't know; theres always Mike Lewis in CA. Hes a super nice guy, a straight shooter and a wizard at oddball combos.
I can't say Id build the motor the same way you are; but theres nothing that would scare me off. Just different strokes for different folks.
Stay upbeat, positive and polite; eat the shipping if you have to and take it as a learning experience. Keep us posted.
Reply With Quote Quick reply to this message
  #27 (permalink)  
Old 04-12-2013, 03:08 PM
1Gary's Avatar
Registered User
 

Last journal entry: 383 dyno sym
Last photo:
Join Date: Oct 2010
Location: Roch,NY
Age: 66
Posts: 1,526
Wiki Edits: 0

Thanks: 201
Thanked 156 Times in 142 Posts
Parts direct to the end user is often not a option due to distributor contacts and often at a much higher costs to the end user.
Some manufactures screen end sales for a dealer with a point system in customer satisfaction.If there is enough negative feedback pull their line out of the dealership.
Wiseco happens to be one of the brand names that sells it's self not needing any dealerships.

CNC motorsports is a member on this forum.From the posts I have read,their posts have been correct.I am guessing the source of that info is coming from the owner of the business.I am also guessing you have yet to talk to him directly on the phone.If you where a customer of ours,I too would refuse to deal with this private matter on a open forum out of common respect for each other.

I suggest your might be one phone call away to talk directly to the owner from finding a better solution to your issue.
Reply With Quote Quick reply to this message
  #28 (permalink)  
Old 04-12-2013, 05:36 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by 1Gary View Post
Parts direct to the end user is often not a option due to distributor contacts and often at a much higher costs to the end user.
Some manufactures screen end sales for a dealer with a point system in customer satisfaction.If there is enough negative feedback pull their line out of the dealership.
That is what I was saying here: skipwhite's 383 ROTATING ASSEMBLY. Then you seemed to have been saying the opposite of what you're saying here.

I had said:
Quote:
Many if not all manufacturers do not offer price breaks to individual buyers. They instead offer the price breaks to vendors who buy in quantity.
Your reply was (bold mine):
Quote:
We have networked manufacture direct purchases for yrs.Well really we have met many face on face and created those contacts.We aren't anyone special,so if your willing to do some leg work,you would be amazed at what you can get done.
Reply With Quote Quick reply to this message
  #29 (permalink)  
Old 04-12-2013, 10:58 PM
1Gary's Avatar
Registered User
 

Last journal entry: 383 dyno sym
Last photo:
Join Date: Oct 2010
Location: Roch,NY
Age: 66
Posts: 1,526
Wiki Edits: 0

Thanks: 201
Thanked 156 Times in 142 Posts
We have bought those quantities I guess.The relationships I think we have created along with a clean customer record has played a huge role.

Anyone who has CNC machines involved in their business has hundred of thousands invested and the small money we talking here isn't significant.Don't get me wrong,the high performance end doesn't have a big margin so those businesses are not a cash cow.Many machine shops earn their bread and butter in production runs of industrial parts and the high performance end of the deal is just some cream on top of that.Again not the main source of income.10,000 wiggets is worth a ton more than a bore on a block.

When I said we aren't anything special I meant if we have been able to do what we have,anyone follow the same formulas could as well.
Reply With Quote Quick reply to this message
  #30 (permalink)  
Old 04-15-2013, 10:41 AM
Registered User
 
Last photo:
Join Date: Apr 2007
Location: Seattle, Wa
Posts: 6,762
Wiki Edits: 0

Thanks: 4
Thanked 426 Times in 365 Posts
Quote:
Originally Posted by camaroman7d View Post
Dish piston and inverted dome are different ways of saying the same thing. These pistons in your link a what is often called a D dish or D cup. This design combines the advantages of a flat top with a compression ratio controlling dish of some volume. There is a related design called a Step Dish where the wall of the dish is cut away making a step.

These designs compared to the OEM's favored use of an enclosed or circular dish is that the D dish/cup, step, or inverted dome maintains a closely closing surface between the piston and head on the side of the head's squish/quench step. By keeping these surfaces with a clearance of about .040 inch detonation resistance and operating effectivity is greatly improved. The dish or stepped side under the valve pocket is a volume added to the combustion chamber, clearance volume of piston to block deck, and head gasket in order to keep overall compression inside a range the fuel can optimally tolerate.

Bogie
Reply With Quote Quick reply to this message
The Following 2 Users Say Thank You to oldbogie For This Useful Post:
0trbo4myCHEVUICK (04-15-2013), 1Gary (04-15-2013)

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
Looking for inverted dome pistons for 400 sbc Chevy21 Engine 10 08-04-2005 07:20 PM
? about dome piston's bowtieorbust Engine 5 09-19-2004 07:34 AM
piston dome firestone Engine 2 02-19-2004 06:51 PM
piston dome cc Wrencher Engine 4 09-18-2003 07:39 AM
Piston Dome cc's? Venturat Engine 1 01-14-2003 02:21 PM


All times are GMT -6. The time now is 04:09 PM.


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.