horsepower guesses? - Page 12 - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #166 (permalink)  
Old 04-08-2011, 12:13 AM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
Quote:
Originally Posted by abigassbowtie
i just punched in the flow numbers to the comp cams desktop dyno program i got and it lost power over the eddy heads i got so.... still curious to hear your opinion!
I'm curious as to the #'s you used, because the Edelbrocks don't flow even close to the ProComp #'s on the intake side.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #167 (permalink)  
Old 04-08-2011, 09:52 AM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
http://www.edelbrock.com/automotive_...erf_rpm2.shtml

part number 6089
Reply With Quote Quick reply to this message
  #168 (permalink)  
Old 04-08-2011, 10:11 AM
Member
 
Last photo:
Join Date: Dec 2004
Location: San Antonio, Texas
Age: 50
Posts: 4,021
Wiki Edits: 0

Thanks: 0
Thanked 23 Times in 23 Posts
the 65cc heads flow well on the intake but are weak on the exhaust.

The 70cc heads look a little better on the exhaust, but still a little weak.
Reply With Quote Quick reply to this message
  #169 (permalink)  
Old 04-08-2011, 12:51 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
The Pro Comp is much better on the intake, and a little worse on the exhaust, a situation easily fixed with about 2 hours time with a cartridge roll and a die grinder. Really basic, easy to do work on the exhaust port.

Once this is taken care of my sim program shows a 40+ hp increase over the Edelbrocks.

A change to 1.6 rockers shows a 15hp increase also, you really need more lift.

How Edelbrock keeps selling heads with such weak flow #'s in todays market, for the price they do, I am at a loss to understand. Their Performer RPM SBC head is barely any better than a stock GM L31 Vortec head.
Reply With Quote Quick reply to this message
  #170 (permalink)  
Old 04-08-2011, 11:01 PM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I have a guy interested in my heads @ $900 wich is enough to buy assembled procomp 210s with cnc ported comb chambers and solid roller valve springs. do you think i should buy those heads bare and buy springs and valves seperate? if so could you advise me some part numbers on something pretty equal in value as to buying them complete ? and when i get the valves do i need to lap them in or do i need to have seats and guides put in? I dont know how bare they are gonna be i guess!

I would be kinda excited to do some port work I wouldnt mind doing some port work on the intake side if that would pick up as well
Reply With Quote Quick reply to this message
  #171 (permalink)  
Old 04-09-2011, 12:29 AM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
If you buy them bare they come fully machined with guides and valveseats installed and valvejob cut. Lapping would be used to confirm the valvejob is okay if you want.

If you buy them complete from White they should be ready to run, would just need disassembly for porting if you desire to. You can make a decent improvement blending the intake port with a cartridge roll also, 10-12cfm.

Buying bare and completing yourself will come out around the same $$$ as his complete price, I don't think there is a bunch to be saved there, because you would also need spring seats, retainers, seals, locks, studs.

An advantage to buying bare us that you could choose 2.055 or 2.08" valves and have your local machinist recut the intake seats for the bigger valve if you want to go bigger. Last set I did was with a 2.055" valve. If you do go this route, Competition Products is the best deal I have found for valvetrain parts.

Last edited by ericnova72; 04-09-2011 at 12:43 AM.
Reply With Quote Quick reply to this message
  #172 (permalink)  
Old 04-09-2011, 01:22 AM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
I did a little checking at Competition Products, you can get a 2.02, 2.055, or 2.08" intake/1.6" exhaust valve roller cam head assembly kit that has valves, springs, 10 Chrome moly retainers, spring seat locators, forged locks and seals for $270(2.02/2.055") or $283(2.08"). Comes with Howards #98541 1.500" valvesprings, 150lbs@1.850", 175lbs@1.800", 450lbs@1.250", 500lbs@1.150", coil bind @1.060", max lift .750".

Kit is #852326(2.02"), #852356(2.055"), or #852386(2.08").

You would just need studs and guideplates to finish, at around $50 with ARP studs.
Reply With Quote Quick reply to this message
  #173 (permalink)  
Old 04-09-2011, 01:13 PM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well I know im all over the place on this but a guy has offered to trade me his dart pro 1 230cc aluminum heads if i gave him 400 dollars so i put everything i own for sale haha to make 600$ so ill have money for gaskets he says his are complete all stock with 2.08 intake valves no port work or anything so im shooting to get these hopefully this weekend
Reply With Quote Quick reply to this message
  #174 (permalink)  
Old 04-09-2011, 02:02 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
The Dart Pro 1 230cc is a good head. Your 406 will love them.
Reply With Quote Quick reply to this message
  #175 (permalink)  
Old 04-09-2011, 07:40 PM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
are these springs alright they are what comes with the heads

Springs: 1.550'' = 195lb @ 1.900'' / .690'' Comp 249-954
Reply With Quote Quick reply to this message
  #176 (permalink)  
Old 04-09-2011, 08:07 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
Should be plenty of spring for your solid roller, it will work fine.
Reply With Quote Quick reply to this message
  #177 (permalink)  
Old 04-10-2011, 11:02 PM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well i got the heads off of it and found a broken piston and the head is a littl screwed up but easily fixable

now i want an opinion on what to do! the guy still wants to trade but he wants the money to have them surfaced wich is fair so it will be 500$ to him and 100 in fuel to trade him i could do that right now but I wouldnt have the money to fix the bottom end I figure its gonna be about 300$ to fix the bottom with all new rings a ball hone to rehone that cylinder a new piston and gaskets and machining the new piston

it did not screw up the cylinder bad at all luckily enough my fingernail can barely feel it

so i could fix and put my heads back on and save for a few weeks to get the heads ( the guy said he can wait while i fix it ) or do i go get the heads and save for the bottom end ?
Reply With Quote Quick reply to this message
  #178 (permalink)  
Old 04-10-2011, 11:05 PM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
another thing i forgot to mention i measured my piston -deck and the piston protrudes .005-.007 wich comes out to 12.08-1 compression wich i like and would like to keep
Reply With Quote Quick reply to this message
  #179 (permalink)  
Old 04-10-2011, 11:57 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 9,202
Wiki Edits: 0

Thanks: 26
Thanked 419 Times in 383 Posts
There is always the risk that he may have somone wave cash in his face and the heads will go bye-bye out from under you. I would get them if this is a deal you want to make and then worry about fixing the engine.

How did you manage to hurt the piston?? First post said it was forged Speed-Pro?? What is wrong with it??

Got a piston # off the top of it?? I may have a couple usable ones saved from blown-up engines around.
Reply With Quote Quick reply to this message
  #180 (permalink)  
Old 04-11-2011, 03:38 AM
Registered User
 
Last photo:
Join Date: Mar 2009
Location: Medford OR
Posts: 164
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well bad news i found out after pulling the motor that the cylinder number 6 is cracked so my guess is that it filled with wather and hydra locked and broke the piston i kept thinking that the condensation was a bit to much. but the good news is about 3 days ago i got an 817 400 block thats .020 over so time to start all over

the pistons are wl2342f40 wich are for a 5.565 rod and were machined down for a 5.7 rod if I remember right Eric you said that you had done this with this same piston before ? if so is this better then getting a hyperutectic piston?
Im gonna order 2 this time and machine it my self my step dad has a milling machine and Im confident i can do it and balance the piston my self. i had 2 extra rods balanced with my assy so im gonna use it just to be on the safe side in case this rod is bent ! but hopefully ill have it all back together for next season

for now im gonna put my 396 in it and see how it does. I know the 396 doesnt make near the horsepower but it has comparable torque i think

this next 400 motor is definetly gonna get splayed caps steel crank hopefully alot of better parts

I gotta take the eddy heads to the machine shop and have them surfaced

that brings up another thing the eddy heads had 2.05 intake valves and were HOGGED out they have puddy in 1 of the ports where they broke through the wall into the pushrod side . is this puddy common? my buddy says his friend has sb2.2 heads and they have lots of puddy in the ports

anyway hope to have the big block in it tomorrow but will definetly be done by friday for my first race hopefully it runs 13s kinda doubt it though

ill update tomorow im tired and disapointed tonight ready for bed
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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
horsepower?? any guesses 327supreme Hotrodding Basics 12 03-24-2009 09:32 PM
Build for Hp or Torque? Venturat Engine 76 09-23-2008 10:22 AM
Horsepower & Performance Formulas/Calculators edge General Rodding Tech 7 08-13-2005 06:01 AM
???the 411 on HP now & then ??? Rob Keller General Rodding Tech 20 07-13-2005 06:00 AM
Horsepower.... and horsepower loss PonchoTA79400 Engine 3 03-13-2004 09:25 AM


All times are GMT -6. The time now is 01:55 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.