Boosted66
Member
Hi guys,
After supercharging the 383 in my 66 Satellite this past winter, it seized first gear to the shaft on the 23 spline 833 that was originally in it the second time out. After talking with some of the manual trans places, and adding up the cost for a switch to an 18 spline with sfi bellhousing and capable clutch, I decided to make the switch to a full manual valvebody 727. I'm sure I'll catch plenty of crap for that one, but it really made sense since my wife drives the car half the time as well and she's had some leg injuries over the years which made the clutch tough sometimes.
I recently bought a full manual valvebody forward pattern 727 from Hughes Performance, low band apply, with their 24-25hd converter as well. I added a Winters Sidewinder shifter in the factory console opening, and ran the cooler lines and everything else needed.
Everything's installed, I've got the shifter adjusted so every gear position lines up nice with each linkage position on the trans, and it's full of fluid when hot in neutral. No kickdown linkage since it's full manual. The first couple drives, I notice it shifts great for the first 3-4 miles, then gets tough to physically downshift the shifter after that. Upshifting is fine.
When hot, I've disconnected the shifter cable from the linkage, and the shifter and cable are great and move easily. If I go to move the linkage on the trans by hand, it upshifts great, but is very difficult to downshift, all the way from park to first in every position, both when running and when shut off. Once cooled, it's great again for another 3-4 miles or once hot. The linkage itself isn't any issue, since it shifts great when cool and is set up exactly like the Winters instructions. There seems to be something with the manual valve or something internally once things get warmed up, but only downshifting. The transmission itself actually makes the shifts great everytime, but the actual shifter movement just gets really tough in the one direction. I'll call Hughes first thing Tuesday, just curious what you guys think?
After supercharging the 383 in my 66 Satellite this past winter, it seized first gear to the shaft on the 23 spline 833 that was originally in it the second time out. After talking with some of the manual trans places, and adding up the cost for a switch to an 18 spline with sfi bellhousing and capable clutch, I decided to make the switch to a full manual valvebody 727. I'm sure I'll catch plenty of crap for that one, but it really made sense since my wife drives the car half the time as well and she's had some leg injuries over the years which made the clutch tough sometimes.
I recently bought a full manual valvebody forward pattern 727 from Hughes Performance, low band apply, with their 24-25hd converter as well. I added a Winters Sidewinder shifter in the factory console opening, and ran the cooler lines and everything else needed.
Everything's installed, I've got the shifter adjusted so every gear position lines up nice with each linkage position on the trans, and it's full of fluid when hot in neutral. No kickdown linkage since it's full manual. The first couple drives, I notice it shifts great for the first 3-4 miles, then gets tough to physically downshift the shifter after that. Upshifting is fine.
When hot, I've disconnected the shifter cable from the linkage, and the shifter and cable are great and move easily. If I go to move the linkage on the trans by hand, it upshifts great, but is very difficult to downshift, all the way from park to first in every position, both when running and when shut off. Once cooled, it's great again for another 3-4 miles or once hot. The linkage itself isn't any issue, since it shifts great when cool and is set up exactly like the Winters instructions. There seems to be something with the manual valve or something internally once things get warmed up, but only downshifting. The transmission itself actually makes the shifts great everytime, but the actual shifter movement just gets really tough in the one direction. I'll call Hughes first thing Tuesday, just curious what you guys think?
