#61  
Old 09-18-2021, 09:32 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Quote:
Originally Posted by PAUL K View Post
See post#54

Good luck and thanks for the update.
Lol thanks I think..I knew this transmission was a sacrifice anyways...but was hoping at least to make a hit with it!
Maybe from now on..any issues I will simply say


See post #54.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
The Following User Says Thank You to ta man For This Useful Post:
  #62  
Old 09-18-2021, 09:45 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Quote:
Originally Posted by ponjohn View Post
With the 2.75 first gear and the 3.73, is it shifting out of first before the 60ft?
By looking at the data log on the LM2 it is 2.45 seconds plus/minus a few hundredths in the 60 foot.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
  #63  
Old 09-18-2021, 11:33 PM
Formulajones's Avatar
Formulajones Formulajones is offline
Ultimate Warrior
 
Join Date: Jan 2012
Posts: 10,794
Default

Yep, so if you were running a 1.60 60 foot, you aren't shifting until close to a full second past the 60 foot mark. At the speeds that car moves a full second is pretty far out there past the 60.

I would expect with the better gear setup you'll improve that 60 foot too.

__________________
2019 Pontiac Heaven class winner

https://youtu.be/XqEydRRRwqE
  #64  
Old 09-19-2021, 10:59 AM
TCSGTO's Avatar
TCSGTO TCSGTO is offline
Ultimate Warrior
 
Join Date: Dec 2000
Location: Warren,Ohio,USA
Posts: 1,675
Default

ta man, have you considered a T400? I know a well built 350 can handle a fair amount of abuse but a mild T400 should give an extra margin of reliability.

__________________
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
  #65  
Old 09-19-2021, 12:30 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Quote:
Originally Posted by TCSGTO View Post
ta man, have you considered a T400? I know a well built 350 can handle a fair amount of abuse but a mild T400 should give an extra margin of reliability.
Yes absolutely. But for now sticking with the th350's, I have quite a bit of money invested into this transmission...it still works well but is slightly hurt. It has the low 275 gear set, and works perfectly as far as shifting and 2 and third gears. At this time I don't want to order a new driveshaft or put a different crossmember on. I'm also dealing with one of the better transmission shops in Ontario .That being said I do have 2 th400's in the shop that can be used in the future.
If I was to do any of the "drag and drive" events that may be the time I would switch over to a th400 to have that ultimate durability. On the other hand I have never totally hurt a th350 to the point of where the car was undriveable. Only a slight mechanical issue for the 2 that I have hurt in the last 20 years hampering et's by a few tenths.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
  #66  
Old 09-20-2021, 06:09 PM
ponjohn's Avatar
ponjohn ponjohn is offline
Ultimate Warrior
 
Join Date: Mar 2002
Location: Connecticut
Posts: 9,530
Default

The other thing is with the gear change the convertor is going to act tighter. That might explain the 60ft.

  #67  
Old 09-20-2021, 08:28 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Quote:
Originally Posted by ponjohn View Post
The other thing is with the gear change the convertor is going to act tighter. That might explain the 60ft.
True..but it wasn't 60 footing well before the gear change. Never dipped below 1.6 all last year with the 308's..if you check out the old thread I thought it was the carb. In hindsight it it hasn't 60 footed under 1.6 since the higher stall convertor R/R.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471

Last edited by ta man; 09-20-2021 at 08:35 PM.
  #68  
Old 09-21-2021, 02:34 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Canada
Posts: 3,078
Default

Have you tried removing the rear sway bar to see what the 60ft will do?

  #69  
Old 09-21-2021, 07:46 PM
punkin punkin is offline
Senior Chief
 
Join Date: Aug 2016
Location: Northern Colorado
Posts: 295
Default

Sorry if I missed it but you've got some great times there. Are you running with a cage, subframe connectors, both?

__________________
1968 Firebird
IAIIa 522
340 E-heads
Northwind with XFlow TBI
4L80E
3.50:1 Rear
  #70  
Old 09-25-2021, 03:25 PM
77 TRASHCAN's Avatar
77 TRASHCAN 77 TRASHCAN is offline
Ultimate Warrior
 
Join Date: Oct 2008
Location: 31May2013 Temporary home to the world's widest (that we know of) tornado. Lord, NO more Please...
Posts: 6,591
Default

Ernie, Do you think you will get to make any more passes, this year???

__________________
1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.

Shut it off
Shut it off
Buddy, I just shut your Prius down...
  #71  
Old 09-26-2021, 10:54 AM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

If the weather operates I should be able to go a few times. The one dragstrip closes mid November.
I need to get these 60 foots back down where they should be.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
The Following User Says Thank You to ta man For This Useful Post:
  #72  
Old 11-12-2021, 10:53 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Finally got the trans back with a full rebuild and a few minor upgrades. About the only thing that was still good was the low gear set. I should have took pictures being that I'm not up on my trans lingo...but the one thrust washer was literally being eaten..that was probably the binding I felt..in the rebuild we used a torrington bearing, pump was showing excessive wear it is replaced, as well as all the clutches were worn. He was surprised it was still pulling somewhat decent times.
The weather is really going to have to come around if I even have a chance to strip test it. I had a chance the other weekend but had family commitments to attend.
So as of now the UCC convertor is back in for the initial testing to see if it works better with the new gearing or if it needs adjusted. Or was it just a trans going bad and too numerically low of gears causing excessive slippage??
I'm positive this combo still has a 10.5 maybe a 10.4 in it..maybe quicker..just hate the wait...maybe I need to trailer south.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
The Following User Says Thank You to ta man For This Useful Post:
  #73  
Old 11-13-2021, 02:21 PM
77 TRASHCAN's Avatar
77 TRASHCAN 77 TRASHCAN is offline
Ultimate Warrior
 
Join Date: Oct 2008
Location: 31May2013 Temporary home to the world's widest (that we know of) tornado. Lord, NO more Please...
Posts: 6,591
Default

I hope you can make some more "end of the year" passes.....but...
One test session isn't as good as 2-3-4 sessions to get an idea of your current combinations consistent ability...
Thanks for all your posts, gives the rest of us inspiration to make things happen, also!!!

__________________
1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.

Shut it off
Shut it off
Buddy, I just shut your Prius down...
  #74  
Old 11-13-2021, 03:29 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Quote:
Originally Posted by 77 TRASHCAN View Post
I hope you can make some more "end of the year" passes.....but...
One test session isn't as good as 2-3-4 sessions to get an idea of your current combinations consistent ability...
Thanks for all your posts, gives the rest of us inspiration to make things happen, also!!!
Hey thanks, yes for sure about test sessions. One good session can show that the 60 foot is down and what the convertor slip is with the UCC. But yes it takes many to fully dial in a combo. Sometimes I look back on my old engine combo with the OF cam and 290 heads..it basically picked up 10mph and a full second over a few years..with the same heads/cam/intake/headers/convertor.
With the current head/cam package I know of 2 other combos that the owners also have the "I can always go faster mindset". One is a local guy with a 69 Trans Am street car/nostalgia racer he has gone 10.794/125.92 in cool weather and another is Lee M. on here that has gone 10.2 at 130 with 60's in the low 1.4' 60 foots its a light car. We end up bouncing ideas off each other now and then so its nice to have a group of guys tuning the same combo..they have both gained tenths over the last year or 2 since I've been stuck going backwards lol.
Also having Dave Bisschop behind the head/cam package is great he is always eager to hear .."Dave it went faster"..and his usual reply is there is more in it.

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
  #75  
Old 11-13-2021, 03:47 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,294
Default

A trip down to Bradenton, Florida might seem like a long drive but 20+ years ago some Ford Guys (from Detroit)
used to make the pull every year for the early Spring Racing.
A very nice track. Raced their with the Keens many times when I was working out of Naples Florida.

Just a suggestion.

Tom V.

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
  #76  
Old 11-13-2021, 04:50 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Quote:
Originally Posted by Tom Vaught View Post
A trip down to Bradenton, Florida might seem like a long drive but 20+ years ago some Ford Guys (from Detroit)
used to make the pull every year for the early Spring Racing.
A very nice track. Raced their with the Keens many times when I was working out of Naples Florida.

Just a suggestion.

Tom V.
Actually travelling south is on the "bucket list" .
An RV and a car trailer and away I go..just need the retirement freedom to have the time. Once our border requirements loosen up I plan to make a few treks in the next couple years to Michigan and Ohio and maybe a few other states

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471
  #77  
Old 11-13-2021, 04:53 PM
ta man ta man is offline
Ultimate Warrior
 
Join Date: Apr 2006
Location: Clinton,Ontario,Canada
Posts: 5,348
Default

Bradenton I believe is where Tom Bailey is starting his "Sick Week" drag week in February, somewhat for the same reasons..off season for northern guys and good weather and he is setting up prime tracks. Sounds like some fast guys are going..shorter drives too

__________________

466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2
373 gears 3200 Continental Convertor
best et 10.679/127.5/1.533 60ft
308 gears best et 10.76/125.64/1.5471

Last edited by ta man; 11-13-2021 at 05:17 PM.
Reply

Thread Tools
Display Modes

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 -4. The time now is 09:11 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017