Turbo 400 firmer shifts
Moderator: John_Heard
-
- Posts: 176
- Joined: Sat Sep 13, 2008 9:11 am
Turbo 400 firmer shifts
Guys whats the biggest u drill your feed holes too? I have a automatic valve body with the transgo kit in it holes are now drilled to .125 on 1-2 and 2-3... We are thinking about going to .156 on both.. too big?
74 Pontiac Grandville
7.33- 1/8th @ 94.55/ 11.501 @117.74- 4550 pds
1.60 60 ft....all bests
74 Firebird 3580#
2016 1.377 60ft, 6.33@106.87- 10.02@ 132 mph
7.33- 1/8th @ 94.55/ 11.501 @117.74- 4550 pds
1.60 60 ft....all bests
74 Firebird 3580#
2016 1.377 60ft, 6.33@106.87- 10.02@ 132 mph
- krazyhorse1
- Posts: 54
- Joined: Thu Oct 23, 2008 9:13 pm
Re: Turbo 400 firmer shifts
.125 is the maxiumum for 1-2. but you can drill the 2-3 .140. but for the 2-3 you can grind the three raised castles off of the accumulator and put it in up side down. then you will have good and hard shifts.
-
- Posts: 176
- Joined: Sat Sep 13, 2008 9:11 am
Re: Turbo 400 firmer shifts
well this is what we did... we drilled the 1-2 to .137 and 2-3 to .147... Blocked off the gov to mod hole on the transgo plate... shimmed up 2-3 accumulator to tighten up band..... and ground the Big lands on two sides on mod valve....shifts like a dream!!...
74 Pontiac Grandville
7.33- 1/8th @ 94.55/ 11.501 @117.74- 4550 pds
1.60 60 ft....all bests
74 Firebird 3580#
2016 1.377 60ft, 6.33@106.87- 10.02@ 132 mph
7.33- 1/8th @ 94.55/ 11.501 @117.74- 4550 pds
1.60 60 ft....all bests
74 Firebird 3580#
2016 1.377 60ft, 6.33@106.87- 10.02@ 132 mph
Who is online
Users browsing this forum: No registered users and 27 guests