Dynosim help and Engine Build Review - 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 09-07-2012, 01:04 PM
Landshark928's Avatar
FrankenPorsche
 
Last photo:
Join Date: Feb 2010
Location: Pensacola, Fl
Age: 45
Posts: 459
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 9 Posts
Dynosim help and Engine Build Review

Anychance someone can run the numbers for me if you have time and are bored.

Killed my 434SBC and I'm replacing it with a 421". Hoping the shorter stroke likes the high rpms better. Feel free to let me know if there is anything I can improve for easy HP or to make it safer. Looking at 150-200 shot of nitrous very occassionally, mostly NA use at higher rpm Road Race and Drifting. Shifted around 7200rpms with the 434". Short block is already assembled.

Dart Little M Block 4.155" bore
Callies Dragon Slayer 3.875 " Stroke
Howards 6" H-beams
Probe forged pistons 17cc dish.
Pistons are 0.003" out of deck.
Felpro 1004 Gasket for .038" Quench
220 Airwolf Heads milled to 63cc Chambers for 10.75:1 SCR and 8.49:1 DCR
Ported Hurricane Plus intake, gasket matched to 1206 and plenum work.
Powerjection III Fuel Injection TB is rated at 950cfm. 4 x 100# injectors
Lunati Voodoo Solid Roller 0.633/.643", 247/253* @ 0.050", 0.016" Lash(Adjusted already for 1.65 Rockers)
1.65 Scorpion Rockers with Scorpion Stud Girdle
Scorpion 3/8" .120" Pushrods
SFI balancer and SFI 16# Flywheel
HEI and MSD. Fuel Injection has spark control.

In a 5 speed car that weighs a little under 3000# with me, fuel and a box of jelly doughnuts.

Thanks for any help!

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-07-2012, 01:18 PM
Landshark928's Avatar
FrankenPorsche
 
Last photo:
Join Date: Feb 2010
Location: Pensacola, Fl
Age: 45
Posts: 459
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 9 Posts
Forgot to mention cam is 110 LSA 4* advanced.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-07-2012, 04:38 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 8,467
Wiki Edits: 0

Thanks: 348
Thanked 826 Times in 792 Posts
I use rocker shafts on my 434. You should consider that too for extended time at 7,000 rpm. use a rev limiter obviously. Not sure what those heads flow but you should still make over 600 hp from 6,000 rpms.
need head flow numbers at valve lift to get a better idea of HP
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-07-2012, 07:32 PM
Landshark928's Avatar
FrankenPorsche
 
Last photo:
Join Date: Feb 2010
Location: Pensacola, Fl
Age: 45
Posts: 459
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 9 Posts
Yes head flow would help. Sorry had a brain fart.

Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-07-2012, 08:12 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 8,467
Wiki Edits: 0

Thanks: 348
Thanked 826 Times in 792 Posts
I see 649 hp plus or minus. I wouldnt try that combo with out rocker shafts myself.good luck,Im sure it will be scary fast in a light car.
dart or afr cnc ed 227s would probably be worth the extra $ if you have not yet bought heads?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-07-2012, 11:43 PM
Landshark928's Avatar
FrankenPorsche
 
Last photo:
Join Date: Feb 2010
Location: Pensacola, Fl
Age: 45
Posts: 459
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 9 Posts
Thanks! Already had the heads on my 434. Basically replaced the short block. I'll check into a set of Jesel rockers. Not sure if I can swing a grand for rockers until next spring.

Only thing I don't have yet is the push rods. Will measure this weekend to order. Intake is still at the porters. If I get close to 649hp I'll be very pleased.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-09-2012, 03:53 PM
68NovaSS's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Working with chromed bolts
Last journal entry: New to me T-Bucket
Last photo:
Join Date: Sep 2002
Location: Nine Mile Falls/Suncrest, WA
Posts: 5,266
Wiki Edits: 9

Thanks: 109
Thanked 135 Times in 126 Posts
Even with the correct valve springs, I'd at least opt for a rev kit, Isky makes a nice one.
__________________
Boost adds dignity to what would otherwise be a vulgar brawl...

Midnight Sun Street Rod Association
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-09-2012, 06:09 PM
Landshark928's Avatar
FrankenPorsche
 
Last photo:
Join Date: Feb 2010
Location: Pensacola, Fl
Age: 45
Posts: 459
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 9 Posts
I'll check into a rev kit. I had thought they were only for hydraulic rollers, not solid.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 09-09-2012, 06:21 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 8,467
Wiki Edits: 0

Thanks: 348
Thanked 826 Times in 792 Posts
Rev kit can be used with ant camshaft.talk to your cam manufacturer about the springs you have and the new rocker arm ratio.The rocker shaft is good for sustained high rpms with w/e springs you need to use,,,
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 09-09-2012, 06:24 PM
Landshark928's Avatar
FrankenPorsche
 
Last photo:
Join Date: Feb 2010
Location: Pensacola, Fl
Age: 45
Posts: 459
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 9 Posts
Gotcha. Springs were installed by Bryce at Dr.Js. I have the build sheet in the garage, I'll double check them with Lunati. Bryce told me they had room to grow if I changed rockers.
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:
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
can I get a dynosim? dusty13 Hotrodding Basics 3 07-22-2011 12:04 PM
looking for an engine review tom penicaro Hotrodding Basics 2 12-16-2010 10:42 AM
Tool Review Part 1. It's a two-for-one review.... schnitz Garage - Tools 0 04-12-2009 07:57 PM
My sbc 400 build up, please review Guitar Charlie Engine 13 06-17-2004 09:06 AM
Caddy 390 engine advice/review mwc Engine 3 08-20-2003 09:21 PM


All times are GMT -6. The time now is 05:25 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.