Hi guys, going to build up a max effort 700R4 for my S10 street strip truck. It has a 406SBC that is built mild with 375-400HP & 400-425lb. ft. of torque. It's got a narrowed 9" 4.56 rear running 31X18.5X15 MT Sportsman on the street and a set of Hoosiers 31X14X15 slicks for the strip.
The 700R4 that is in it now I rebuilt in 2001. I did all the modifications to it that I read about and was suggested. I used a TCI kit with their manual/auto shift kit, I't works very well. I have a 2800RPM PATC converter with the 12"carbon clutch. The truck is a hoot to drive.
The problem is 4th gear is starting to slide in instead of a firm engagement. As a matter of fact it never did have a firm engagement like 2nd. Third engages well but not like 2nd. I suppose I'm burning the 3-4 clutch and/or the 2-4 band. I don't recall what band was used in the kit, but I do know all clutches and the band were red.
My goal is to build an all out effort 700R4 that will reliably handle WOT shifts into 3rd and 4th. I need to maintain the manual/auto control. It will see 90% street use 10% strip use. But it will see some hard street use. And strip performance is more important. I'll be using a 1993 core out of a Caprice.
I guess the first questions is; is this doable?
I know about the "beast" sunshell and the reinforcing band in the input housing. My questions involve the best clutches to use that will meet my goal.
The Raybestos Z-Pak sounds good and a few people in other forums indicate good luck with them. But will they take a WOT shift into 4th and come back for more? Is there something better?
What about the best clutches for the rest of the trans? Red, blue?
From what I've read, the carbon wide band on a new drum seems to be the preferred parts to use for the 2-4 band. But is that the best to use for my application?
I plan to use the preferred sprags as I have in my current 700 and the 5 pinion planetarys.
Any comments are welcome. Sorry for the long winded post.
The 700R4 that is in it now I rebuilt in 2001. I did all the modifications to it that I read about and was suggested. I used a TCI kit with their manual/auto shift kit, I't works very well. I have a 2800RPM PATC converter with the 12"carbon clutch. The truck is a hoot to drive.
The problem is 4th gear is starting to slide in instead of a firm engagement. As a matter of fact it never did have a firm engagement like 2nd. Third engages well but not like 2nd. I suppose I'm burning the 3-4 clutch and/or the 2-4 band. I don't recall what band was used in the kit, but I do know all clutches and the band were red.
My goal is to build an all out effort 700R4 that will reliably handle WOT shifts into 3rd and 4th. I need to maintain the manual/auto control. It will see 90% street use 10% strip use. But it will see some hard street use. And strip performance is more important. I'll be using a 1993 core out of a Caprice.
I guess the first questions is; is this doable?
I know about the "beast" sunshell and the reinforcing band in the input housing. My questions involve the best clutches to use that will meet my goal.
The Raybestos Z-Pak sounds good and a few people in other forums indicate good luck with them. But will they take a WOT shift into 4th and come back for more? Is there something better?
What about the best clutches for the rest of the trans? Red, blue?
From what I've read, the carbon wide band on a new drum seems to be the preferred parts to use for the 2-4 band. But is that the best to use for my application?
I plan to use the preferred sprags as I have in my current 700 and the 5 pinion planetarys.
Any comments are welcome. Sorry for the long winded post.
