Go Back   The Supercar Registry > Dealer Specific Discussion > COPO - United States


Reply
 
Thread Tools Display Modes
  #1  
Old 07-07-2006, 07:06 PM
markjohnson's Avatar
markjohnson markjohnson is offline
Yenko Contributing Member
 
Join Date: Dec 2003
Location: STL, MO.
Posts: 2,483
Thanks: 256
Thanked 576 Times in 231 Posts
Default Re: 70 COPO

I agree, leave the headers on. I think I've mentioned this before but a friend on mine has a bone stock, never opened, stock cam,intake,carb etc. 1970 LT-1 out of a '70 Z-28 that was wrecked very early in it's life. He's had this motor for like over 30 years in his Corvette. He recently yanked it out and put the engine into his son's '69 Camaro with a four speed, 4.11's, and some small nine inch slicks. The car runs 12:30's and this motor is even a little tired after so many years of street driving. Those times say alot about the performance potential of that engine. That's Rat motor territory!
__________________
1962 Biscayne O-21669 MKIV/M-22
1962 Bel Air Sport Coupe 409/1,000
Reply With Quote
  #2  
Old 07-07-2006, 07:21 PM
69LM1's Avatar
69LM1 69LM1 is offline
Yenko Contributing Member
 
Join Date: Dec 2003
Location: New Orleans, LA
Posts: 2,557
Thanks: 382
Thanked 389 Times in 166 Posts
Default Re: 70 COPO

Marlin,

How's the deuce setup? Stock w or wo headers, cam etc?

I need to check the build sheet and see what rear is in mine.

Rich
__________________
Rich Pern
69 Camaro COPO "Tin Soldier"
Reply With Quote
  #3  
Old 07-07-2006, 07:34 PM
Jeff H Jeff H is offline
Senior Member
 
Join Date: Feb 2001
Location: Ewing, NJ
Posts: 2,454
Thanks: 0
Thanked 80 Times in 24 Posts
Default Re: 70 COPO

Wouldn't a tall spoiler car be slower than a short spoiler car due to the added wind resistance at high speeds?
__________________
69 Z28 JL8, #'s match - being restored
Reply With Quote
  #4  
Old 07-07-2006, 08:20 PM
YENKO DEUCE REGISTRY's Avatar
YENKO DEUCE REGISTRY YENKO DEUCE REGISTRY is offline
Yenko Contributing Member
 
Join Date: Apr 2000
Location: PA
Posts: 13,097
Thanks: 720
Thanked 360 Times in 144 Posts
Default Re: 70 COPO

[ QUOTE ]
Marlin,

How's the deuce setup? Stock w or wo headers, cam etc?

Rich

[/ QUOTE ]

Stock - GM blueprint cam, carb, intake, TRW pistons, orig. rods & crank, etc..., no headers, no traction bars (will add spring clamps after the Nationals), original leaf springs, original front coil springs, and some standard Pep Boys shocks - no drag shocks, no super stock springs, no lightweight stuff in the trans or rear or anything, and E70x14 whitewalls! (and the correct, original style battery - not a hollowed out job!).

LT1, M21, and 4.10's
__________________
Marlin
70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride)
69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride)
67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
Reply With Quote
  #5  
Old 07-08-2006, 06:51 AM
69LM1's Avatar
69LM1 69LM1 is offline
Yenko Contributing Member
 
Join Date: Dec 2003
Location: New Orleans, LA
Posts: 2,557
Thanks: 382
Thanked 389 Times in 166 Posts
Default Re: 70 COPO

OK,
Looks like mine has "GY4 = 373 Rear Ratio and "G80" = Posi


__________________
Rich Pern
69 Camaro COPO "Tin Soldier"
Reply With Quote
  #6  
Old 07-08-2006, 02:48 PM
70 copo 70 copo is offline
Senior Member
 
Join Date: Oct 2000
Location: chillicothe Ohio 45601
Posts: 3,834
Thanks: 219
Thanked 1,241 Times in 578 Posts
Default Re: 70 COPO

Rich,

Most cool! Gotta love the LOS cars. Build sheets are great.

3.73 is just like mine. Based upon the road test data from 1970- Even with a nearly perfect reaction time your 1320 ET's (stock with a 3.73 gear) are gonna be likely only Mid 14's..

Rich I gotta tell you If you decude to run it - a couple of passes at a local strip in your area will tell you for sure!

Ok Marlin how much would you be willing give up to even the race?? How about leaving the headers on the Z??

Phil
Reply With Quote
  #7  
Old 07-09-2006, 08:18 AM
hvychev hvychev is offline
Yenko Contributing Member
 
Join Date: Jun 2002
Location: Darien, IL
Posts: 3,668
Thanks: 0
Thanked 73 Times in 28 Posts
Default Re: 70 COPO

God, am I gonna miss smokin yo azz this coming SCR Marlin......All the tunin' and fussin did not beat my 13.9 last year!
__________________
Frank Magallon
Reply With Quote
  #8  
Old 07-10-2006, 05:18 PM
YENKO DEUCE REGISTRY's Avatar
YENKO DEUCE REGISTRY YENKO DEUCE REGISTRY is offline
Yenko Contributing Member
 
Join Date: Apr 2000
Location: PA
Posts: 13,097
Thanks: 720
Thanked 360 Times in 144 Posts
Default Re: 70 COPO

[ QUOTE ]
God, am I gonna miss smokin yo azz this coming SCR Marlin......All the tunin' and fussin did not beat my 13.9 last year!

[/ QUOTE ]

Yea, this year I will have time to work on my own instead of yours First a water pump, then fouled plugs last year Just Funnin, but I believe that it's all in the driving - once JJ slammed down a 13.8x in your Deuce, you knew it was in there - and just drove it out. Not sure I'm willing to push mine too hard with the original drivetrain, but it sure is fun, even if I lose

14's is just fine for a 3.73 geared car, with these tires it's a driver's race anyway. I would leave the headers on, it'll give me an excuse
__________________
Marlin
70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride)
69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride)
67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT. The time now is 05:28 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.

O Garage vBulletin Plugins by Drive Thru Online, Inc.