Whats next? - 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
  #1 (permalink)  
Old 11-18-2007, 09:50 PM
BMM BMM is offline
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Not there
Posts: 605
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Whats next?

Hello all. Im looking for advise on what to aim for as the next upgrade to my vehicle. It is a 1988 Oldsmobile Cutlass Supreme. With a 350 SBC edelbrock 600cfm and RPM performer intake, headers and dual exahust, a brand new, 'level 2' 2004r transmission from Bowtie Overdrives w/2200 stall, and the factory rear end (I beleive it's no higher than 3.).

Depending on the traction I can get at the time, the car runs about high 14's, low 15's. I don't know how old the engine is, but it seems to run well. Im looking for something that will give me a bit more get up and go on the highway, but will keep me from putting too much stress on the motor.

I was thinking something like a 268H Comp Cam, with some roller rockers, or the easier route of an electric fan (I've been told they can free up up to 15 hp).

Im fairly lost here, as I dont have the big bucks to lay out.

Thanks alot.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-18-2007, 10:23 PM
Deuce's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Choosing a trailer
Last journal entry: Jan 13 2013
Last photo:
Join Date: Aug 2002
Location: Deuceland USA
Age: 66
Posts: 5,657
Wiki Edits: 6

Thanks: 0
Thanked 9 Times in 9 Posts
I would go lower on the rear end ratio ... a 3.73 or so

You have a 200R4 ... so the overdrive will help keep the RPMs down @ highway speed.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-19-2007, 12:25 AM
BMM BMM is offline
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Not there
Posts: 605
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That is something I was considering, but I am unsure about its benefits. Would swapping from a high 2 to a 3.73 be noticabley felt, and make my car a substatial amount quicker?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-19-2007, 05:54 AM
Deuce's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Choosing a trailer
Last journal entry: Jan 13 2013
Last photo:
Join Date: Aug 2002
Location: Deuceland USA
Age: 66
Posts: 5,657
Wiki Edits: 6

Thanks: 0
Thanked 9 Times in 9 Posts
A 200R4 has the first gear ratio of 2.78

So if you rear gear is 3.0 your first gear overall ratio is 3.0 X 2.78 = 8.34

With a 3.73 , it is 2.78 X 3.73 = 10.36

A good many of the Monte Carlo SS cars came with the 3.42 or the 3.73 rear ends ... from the factory for the exact same reason ... to help get the car moving.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-19-2007, 12:16 PM
Registered User
 

Last journal entry: Albany Oregon Show
Last photo:
Join Date: Mar 2006
Location: Merlin, Oregon
Age: 59
Posts: 247
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
A Little Quicker

I agree with Deuce and in addition since your car is a 88 I would replace all the rubber bushings in the rear suspension with hard rubber bushings. This will stiffen the ride in the rear a little, but it will also stabilize your rearend and provide better traction. If your rear control arms are stamped c-channel as I think they are you might consider boxing them in. This requires welding in a strip of 1/8" metal in the un boxed side of your control arms. This will take the flex out of your control arms and further stabilize your rearend.

Bob
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-19-2007, 04:32 PM
BMM BMM is offline
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Not there
Posts: 605
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
And 10.0 first drive is ideal, correct?

Would warpage due to heat be a concern with the control arms?

According to my tach, when my motor reaches 4000rpm, it seems to run out of breathe. I don't think that is a problem, but I always thought 5500 is an ideal max rpm? Is this due to a cam, or the engine/heads in general?
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 11-19-2007, 04:49 PM
Registered User
 

Last journal entry: Albany Oregon Show
Last photo:
Join Date: Mar 2006
Location: Merlin, Oregon
Age: 59
Posts: 247
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Warping the control arms

I have done this several times with out any warping problems. I start out by throughly cleaning the areas to be welded. I trim the metal strip to fit the open area in the control arm. I tack weld all four corners and one tack on each side in the middle. Then I weld about a 1/2" bead at a time crossing over from side to side and end to end letting the control arm cool to warm between welds. I weld two beads on one control arm and then I work on another control arm while the first cools. I continue this process until all the arms are completely welded. Works for me try at your risk.

Bob
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



All times are GMT -6. The time now is 01:09 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.