update on intake swap - Page 3 - 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
  #31 (permalink)  
Old 12-28-2003, 06:11 PM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i'd look into timing, seemed to be the culprit after i did my intake swap. Had the same type of problems you are saying your car is having.

    Advertisement
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #32 (permalink)  
Old 12-28-2003, 06:19 PM
stepside454's Avatar
Member
 
Last photo:
Join Date: Dec 2003
Location: St. louis area
Age: 47
Posts: 1,074
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
First off I agree with Steve...that sounds like alot of camshaft. what is max RPM you plan to spin this 327 ?
what type of vehicle is it in ?
also...that might be a bit more carb than needed. John
Reply With Quote Quick reply to this message
  #33 (permalink)  
Old 12-28-2003, 06:30 PM
chevellenut's Avatar
Member
 
Join Date: Dec 2003
Posts: 117
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
timing is set at 14 int,ive had it higher before and didnt seem to help but that was with the other intake it was a single plain torker so i will try that again and go and get me another shooter tommorow and put it in there.Id say some day ill have to change my cam out but i just aint been able to get my self to do it yet.

ill probley never run it over 6 or 6500 and its in a 66 chevelle

Last edited by chevellenut; 12-28-2003 at 06:30 PM.
Reply With Quote Quick reply to this message
  #34 (permalink)  
Old 12-28-2003, 06:35 PM
Steve karch's Avatar
Member
 
Last photo:
Join Date: Feb 2002
Location: Regina, Saskatchewan
Age: 55
Posts: 414
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What's going to wind up happening here is that you are going to mask the symptom, not fix it. The big problem is that with that cam and head combo, you basically have zero for intake velocity. What this means is is that the air entering the engine is moving very slowly. When you hit the throttle, the shooter dumps fuel into the intake, but because the air movement is so slow the fuel wont atomize. It creates puddles, sorta like if you dump raw fuel into the carb. What you need to do is increase the air velocity into the engine. This may mean a smaller shooter (this wont increase velocity but will atomize better), go to a smaller carb which will get a better signal from the intake, or maybe install a 4 hole spacer which will increase velocity. Remember this is a crutch repair and anything you do to cure a low rpm problem will most likely create a high rpm problem. This is not a carb problem but is a tune up problem created by a mismatch of components. Lets us know how it works out.

Steve
Reply With Quote Quick reply to this message
  #35 (permalink)  
Old 12-28-2003, 06:51 PM
chevellenut's Avatar
Member
 
Join Date: Dec 2003
Posts: 117
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I sure will if i ever get this thing linned out but hey i can drive it know anyways just have to put up with the stumble.I will try the shooter and see if that helps it.The car was used for drag racing before i got it so im slowly trying to get it back to just a good hard running street car.Ive been relutant to replace the cam because i would like to wait to get the money to go back through the hole moter at the same time and with life and bills rolling in every month my passion has to take a back set,but if it takes me to im 80 ill keep pecking along on it.Heck i bet the kids would get a kick out of a 80 year old man doing donuts in the parking lot.
Reply With Quote Quick reply to this message
  #36 (permalink)  
Old 12-28-2003, 07:03 PM
stepside454's Avatar
Member
 
Last photo:
Join Date: Dec 2003
Location: St. louis area
Age: 47
Posts: 1,074
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevellenut...is that duration you posted @ .050..or advertised ?

the reason I ask, it could be a vac. sec carb..no matter what brand might not work properly on that camshaft.
as far as size 750 is a bit large for a lil 327...or 331 ****uming its .030 over. a 700 mech. secondary might be the ticket...or if a vac. will work a 670CFM would be perfect.
Reply With Quote Quick reply to this message
  #37 (permalink)  
Old 12-28-2003, 11:29 PM
chevellenut's Avatar
Member
 
Join Date: Dec 2003
Posts: 117
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yey thats at.50.I know a guy thats got a 600 eldebrock who would like to trade for mine that is what got me to thinking about the eldebrock do you think that would work better for this car?
Reply With Quote Quick reply to this message
  #38 (permalink)  
Old 12-28-2003, 11:31 PM
lluciano77's Avatar
Short changed on common sense
 
Last photo:
Join Date: Jun 2003
Location: california
Age: 37
Posts: 3,548
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
No way. You will lose a lot of power. Of course he wants to trade. He knows his car will be faster.
Reply With Quote Quick reply to this message
  #39 (permalink)  
Old 12-29-2003, 02:42 AM
rifraf's Avatar
Member
 
Join Date: Dec 2003
Location: washington
Posts: 576
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Boy,I don't think you will be happy with it till you get a smaller cam and carb. Your gonna be like a dog chasin his tail tryin to tune it, and a dog crapin peach seeds tryin to drive it,hate to sound discouraging.That is unless you have a big stall converter and a big led foot to go with it!
Reply With Quote Quick reply to this message
  #40 (permalink)  
Old 12-29-2003, 07:09 AM
stepside454's Avatar
Member
 
Last photo:
Join Date: Dec 2003
Location: St. louis area
Age: 47
Posts: 1,074
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That cams gotta go.. for a solidflat tappet,ypu need something in the 225-230 range @ .050 & Id consider a big LSA like 112 degrees...lift in the .480@ most
something like that will still go over 6K RPMS
..thats why your holley isnt working...itll never work like that.
Id stil consider either a 700 mech. secondary, or a 670CFM Vac. sec.
Crower has this little solid cam: 230/236 @ .050 112LSA
.458/.468 lift with 1.5 rockers
#00320
it may look & sound like small #s but its a small motor. John
Reply With Quote Quick reply to this message
  #41 (permalink)  
Old 12-29-2003, 06:21 PM
rifraf's Avatar
Member
 
Join Date: Dec 2003
Location: washington
Posts: 576
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Say,I dont know how mild or wild you want it to be,but summit sells cam and lifter sets for 79.95,I put thier 224/234 .465/.488 cam in my freinds 67 comaro 327 with a 600 holley and its an awsome daily driver with some pretty darn good get up and go,nothing I would race,but he even boasts 15/16 mpg.It stays tuned,its reliable and sound good,and its cheep! Ive run this cam in a lot of small blocks for mellow rods and had lots of complements from my custemers,the price is right.
Reply With Quote Quick reply to this message
  #42 (permalink)  
Old 12-30-2003, 12:41 AM
chevellenut's Avatar
Member
 
Join Date: Dec 2003
Posts: 117
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
No it has no stall in it and they dont come cheap for a 700r.Im hopping to some day run across a good 5 speed and put in it,its just finding one at the right price when i have the molo.
I would love to be able to get 16 mpg im lucky to get 9 on the highway.With the old 350 trans that was in it it only got six so i was tickled.
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



All times are GMT -6. The time now is 10:12 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.