Organized Drag Racing and Autocross Drag racing and autocross discussions and questions. Techniques, tips, suggestions, and "what will I run?" questions.

ATI PG thoughts?

Thread Tools
 
Search this Thread
 
Old May 9, 2022 | 03:47 PM
  #1  
MIB4X4's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2021
Posts: 16
Likes: 1
From: Virginia Beach, VA
Car: 1986 Camaro
Engine: 632 BBC
Transmission: TH 400
Axle/Gears: Ford 9in 4.34
ATI PG thoughts?

Looking to shift from my Art Carr TH400 to a PG and was looking at ATI and wondering what the thoughts on them were. I am installing a 632 BBC that made 1043 hp and 850 ft lbs trq on the dyno. I am looking at their High Impact Pro Glide to allow room for improvement. ATI Powerglide - High Impact Pro GlideŽ Drag Racing Transmission (atiracing.com) but like everyone I want reliability and sustainability.
Reply
Old May 10, 2022 | 12:02 PM
  #2  
AlkyIROC's Avatar
Moderator
25 Year Member
Liked
 
Joined: Jul 1999
Posts: 17,271
Likes: 171
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: ATI PG thoughts?

My PG is still an OEM case and majority of the internals are still OEM. There are a few aftermarket parts inside to replace the parts that normally break but I still run OEM 1.76 gears even though some 1.80 straight cut would be better. I could easily spend $5000 for an all out aftermarket PG capable of working with 2000 HP but until mine breaks, I don't need it.

With transmission and torque converters, you really do get what you pay for. Inexpensive parts are not quality parts. Expect to pay around $1000 for a converter to match the engines powerband. The dyno chart will make picking the correct stall a lot easier.

With a high torque engine for drag racing, a multi speed transmission is not really required. You'll have more than enough torque to get you off the line with the first gear of a PG no matter what the ratio and with only one shift, it improves consistency.
Reply
Old May 10, 2022 | 02:40 PM
  #3  
MIB4X4's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2021
Posts: 16
Likes: 1
From: Virginia Beach, VA
Car: 1986 Camaro
Engine: 632 BBC
Transmission: TH 400
Axle/Gears: Ford 9in 4.34
Re: ATI PG thoughts?

Originally Posted by AlkyIROC
My PG is still an OEM case and majority of the internals are still OEM. There are a few aftermarket parts inside to replace the parts that normally break but I still run OEM 1.76 gears even though some 1.80 straight cut would be better. I could easily spend $5000 for an all out aftermarket PG capable of working with 2000 HP but until mine breaks, I don't need it.

With transmission and torque converters, you really do get what you pay for. Inexpensive parts are not quality parts. Expect to pay around $1000 for a converter to match the engines powerband. The dyno chart will make picking the correct stall a lot easier.

With a high torque engine for drag racing, a multi speed transmission is not really required. You'll have more than enough torque to get you off the line with the first gear of a PG no matter what the ratio and with only one shift, it improves consistency.
ALKYIROC, thanks a ton for the info and putting my mind at ease with the PG choice. Will work with the transmission manufacturer to ensure correct torques converter.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Whitechevy92
Engine/Drivetrain/Suspension Wanted
0
Oct 7, 2015 12:15 PM
RSluvr
Camaros Wanted
6
Jun 3, 2007 11:03 AM
smokumZ28
Power Adders
5
Oct 5, 2006 09:43 AM




All times are GMT -5. The time now is 03:24 PM.