67 camaro drag car help - 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 06-24-2009, 08:56 AM
74huggerorange's Avatar
Member
 
Join Date: Nov 2002
Location: Oklahoma
Posts: 131
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
67 camaro drag car help

Ok, I more or less inherited a 67 Camero RS/SS that is nearly ready for the drags. I dont know much about this car but it has a 555ci bbc that is alcohol injected and puts out 850hp and has 150 shot of nitrous. The motor was put in the car 3 years ago and it hasnt been started in 2 years. I farted with it Sunday and got it going, but it wouldn't run on its own without pooring fuel down the throttle body. The fuel distribution manifold was getting fuel and I could see fuel returning into the fuel cell, so I think the injectors must have some crap in them. We plan to drag race this car and I need ALOT of help from some experienced guys, I have never dealt with anything like this but I do have alot of mechanical ability and knowhow. For starters the car has its origional 4spd manual...I plan to put in a th400 or powerglide, and need to decide on a convertor also. Also, the car has a 9" narrowed rear axle with 31" tall tires, but a 4.10 gear...what would be a better ratio for the 1/4 mile? 4.88? The car is set up with 4 link in the rear with coilovers and the front is stock, just lowered a little. I plan to put a rack and pinion in it because the manual stock steering leaves alot to be desired. The fuel in the tank is 2 years old, how long does alcohol stay good? Any advice on anything would be greatly appreciated. I have never dealt with this much power, alcohol, or set up a drag car. The car has all steel body with full interior and cage. The motor came out of a rail car that ran 7.90's in the 1/4 mile...so maybe this car will be capable of getting in the 9's. Thanks a ton, I will do my best to ask competent questions as I go and give the best information that I can.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-24-2009, 09:53 AM
Member
 
Last photo:
Join Date: Feb 2005
Location: chillicothe oh
Age: 47
Posts: 1,445
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Fresh fuel is a must, alky absorbs water from the air easily.Hopefully you won't have to many corrosion issues to deal with in the fuel system but you might with old fuel in it.Injectors, lines any rubber parts should all be checked.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-24-2009, 10:43 AM
Rubberman2003's Avatar
Member
 
Last photo:
Join Date: Sep 2002
Location: Ohio
Age: 29
Posts: 806
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
As far as the gear, i would wait until you decide what transmission you get. Then base the gear of the tranny ratios.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-24-2009, 12:15 PM
74huggerorange's Avatar
Member
 
Join Date: Nov 2002
Location: Oklahoma
Posts: 131
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I am still undecided between powerglide and th400, but am leaning towards PG
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 06-24-2009, 02:17 PM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The 4.10 gear should be about right. Remember with that much
power the MPH should be way up (~130-140?), engine RPM increases
with MPH. With a 4.88 the RPM will be too high for the engine (> 8000 RPM).

My choice would be a glide, some people prefer a three speed
for the lower first gear.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 06-24-2009, 03:32 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,603
Wiki Edits: 326

Thanks: 701
Thanked 891 Times in 758 Posts
Talking to the racers, consensus seems to be, under 2800 lbs use a 'Glide, over 2800 use a 3-speed.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 06-24-2009, 03:51 PM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by techinspector1
Talking to the racers, consensus seems to be, under 2800 lbs use a
'Glide, over 2800 use a 3-speed.
That's right... to see benefit from one or the other. Under 2800 lbs the car
might be faster with a glide. Over 3000 lbs will normally ET better with the
lower 1st gear of a 3 speed.

There are other reasons to run a glide. Eliminating one of the gear changes
can improve consistency and the glide will soften the initial hit to the tires
to control starting line behavior.

I run a T350 in my 67' and a glide in my 68'; similar engines, both cars a little
over 3000lbs. The T350 60fts better but both cars run about the same
at the stripe.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 06-25-2009, 06:17 AM
74huggerorange's Avatar
Member
 
Join Date: Nov 2002
Location: Oklahoma
Posts: 131
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
[QUOTE=

There are other reasons to run a glide. Eliminating one of the gear changes
can improve consistency and the glide will soften the initial hit to the tires
to control starting line behavior.

QUOTE]

These are the reasons why we have decided to go with a glide, not looking for fastest ET and the driver is going to be new to this type of a car. Now I just need to decide who to get it from and what convertor. It surprises me that the 4.10 gear will be about right...I crunched some #'s and I agree that 4.88 would be way to deep. The rev limiter is set at 8k. Thanks for all of the input so far guys
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 06-25-2009, 06:42 AM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I would go with the 4.11 gear and get some seat time, the big engine should
make plenty of bottom end power to get the car moving. Make a change after
the car is dialed in real good. I doubt you will want more than a 4.30 gear
to control finish line RPM.

I run a glide with 5000 stall, a 4.56 gear with a 31" tall tire on my 68. 60 ft is
soft (1.52); it runs real strong in the mid range and top end (10.8 @ 124).
This is with a 11:1 compression 350 CI, 7000 RPM at the stripe.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 06-25-2009, 08:58 AM
74huggerorange's Avatar
Member
 
Join Date: Nov 2002
Location: Oklahoma
Posts: 131
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I was wrong about the tire size. Right now the car has 29x18.5 mickey thompson sportmans in the rear, these are coming off in favor of some slicks. This tire looks to be the max diameter/width that the car can fit. They fit very well. I will take your recommendation of the getting seat time and getting it dialed in before changing the rear gear ratio. Thanks
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 06-25-2009, 09:10 AM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I streched tire opening of the rear quarter panels on my
68' to fit the big tires.

Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 06-25-2009, 09:40 AM
74huggerorange's Avatar
Member
 
Join Date: Nov 2002
Location: Oklahoma
Posts: 131
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
LOOKS GOOD! My car is already finished looks wise and has been showing for a long time...got bored with that so now it is time to go!
Hopefully I wont have trouble finding a quality slick in my current size.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 06-25-2009, 11:05 AM
automotive breath's Avatar
Registered User
 
Last photo:
Join Date: Mar 2006
Location: New Orleans
Posts: 891
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I recommend using radial slicks, people at the local track are
running deep into the 9's on a 9" wide radial. You won't have
a problem finding something that will fit.

Tell us more about the engine!
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 06-29-2009, 06:15 AM
74huggerorange's Avatar
Member
 
Join Date: Nov 2002
Location: Oklahoma
Posts: 131
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Well, I worked on the car alot again yesterday...I didn't see a name anywhere on the injection. I cleaned out the injectors and reinstalled them pointing at the cylinders and cleaned out the lines that go to each injector. Everything seemed very clean. I then pulled the supply and return lines off of the fuel cell and flushed them with water, then air and let dry. Once again everything was pretty clean. The moroso fuel filter was also so clean it looked brand new! Here is the kicker...when I pulled the supply line off of the tank not much came out for a minute (has over 10 gallons in it). So I reached my hand inside and there was crap stopping up the fitting. The foam that came in the aluminum fuel cell broke down and it was all in the bottom of the tank and resembled a sandbox. CRAP! So I got that all cleaned out and we put 5 gallons of alcohol in the tank and it stull wont run. I pulled the supply line off the pump and the fuel poors out. I connected the supply back and pulled off the return to the pump and ran the motor and not much was coming out at all, in fact you couldnt even tell a difference when the motor shut off. Obciously the fuel pump has taken a hit from the lack of fuel, or from getting foam particles in it.
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
Rear Drag Shocks on a Street Car? JohnTN Suspension - Brakes - Steering 2 08-09-2005 04:25 PM
First paint scheme for '59 Caddy by me Nightrider Body - Exterior 54 07-05-2005 02:27 PM
what enging to use for 67 camaro drag racer chevydude14 Engine 1 07-19-2003 10:52 AM
New here - 67 Camaro Questions Advice? DarkestWeb General Rodding Tech 3 05-16-2003 11:59 PM


All times are GMT -6. The time now is 02:55 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.