Pontiac - Street No question too basic here!

          
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  #21  
Old 11-15-2020, 09:42 PM
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1968GTO421 1968GTO421 is offline
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Quote:
Originally Posted by grandam1979 View Post
I see your in Ohio what track are you at?
With a magnifying glass, the time slip in post #1 said Thompson Raceway Park. Hope this helps.

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  #22  
Old 11-15-2020, 10:42 PM
grandam1979 grandam1979 is offline
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Yes that did help thanks.

  #23  
Old 11-17-2020, 01:08 AM
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68lemans462 68lemans462 is offline
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Wow very impressive times! How is your suspension set up? I just ordered a TSP from cliff as well looking forward to improvements in 60'!

Mineshafty in this neck of the woods is 7400DA! LOL

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1968 Lemans. 37,000 original miles. GTO clone. 462ci/KRE 290 heads. UltraDyne 280/288 Solid/850 Qjet by Cliff/Performer RPM/TSP 9.5" in TH400/8.5" 3.42 gears/3950# Race weight/12.58@106 at Bandimere speedway high altitude

Last edited by 68lemans462; 11-17-2020 at 01:37 AM.
  #24  
Old 11-17-2020, 06:39 PM
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TCSGTO TCSGTO is offline
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On the back it has Spohn adjustable upper arms with a spherical joint at the frame, and UMI lowers with a spherical rod end on the housing side.
The pinion angle is set with the pinion 1-1/2 degree down from the trans tail shaft at rest to try to get them to be parallel under power.
It has a Spohn bolt on ARB and Summit 3 way shocks set at 50/50.
On the front it has Tempest 6 cylinder coil springs and Lakewood 70/30 shocks with no sway bar.

It actually rides good on the street and handles ok for what is is. The ARB keeps the body lean down around turns much better than a stock sway bar but it will oversteer if you push it. I may finally break down and swap to discs. The drums are good for 1 hard stop at speed then it’s downhill from there.

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68 GTO,3860#
Stock Original 400/M-20 Muncie,3.55’s
13.86 @ 100
Old combo:
462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's.
1968 Pontiac GTO : 11.114 @ 120.130 MPH

New combo:
517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's
636HP/654TQ
1.452 10.603 @ 125.09
http://www.dragtimes.com/Pontiac-GTO...lip-31594.html
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  #25  
Old 11-18-2020, 07:21 PM
Formula jg Formula jg is offline
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Quick question to the OP, I notice your carb settings has a rather large pump shot with 40/40 squirters and 50/30cc pumps, is this with a progressive secondary link or 1:1 link?

  #26  
Old 11-20-2020, 03:09 AM
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TCSGTO TCSGTO is offline
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Progressive. 37/37 gives a slight lag at times when the engine is cool. In hotter summer months I can use a little less shot.

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68 GTO,3860#
Stock Original 400/M-20 Muncie,3.55’s
13.86 @ 100
Old combo:
462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's.
1968 Pontiac GTO : 11.114 @ 120.130 MPH

New combo:
517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's
636HP/654TQ
1.452 10.603 @ 125.09
http://www.dragtimes.com/Pontiac-GTO...lip-31594.html
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