Interesting Issues w/ FTI stall and Performabuilt Trans
The following bulk of text is going to be copy/pasted from my build thread on another forum. The beginning section is describing the FTI stall and Performabuilt transmission.
"So again I decided to take off the converter and put it on again - I can only get it to slide in 2 out of the 3 times it should. No matter what there is a significant gap between the pump and the stall ( > 1" ). Using a straight edge across the bellhousing face the gap to the bolt pads on the converter is less than 1/8" definitely showing the converter isn't in all the way. I call up Frank at Performabuilt (who happens to be open on a Sunday!) and he gave me tips of what to try to no avail.
At this point I try putting the stock stall into the transmission and it's the same - it only goes 2 out of the 3 clicks in leaving little to no gap from the bellhousing face.
Okay so I try comparing the FTI and stock stall on the stock transmission. The stock stall goes on like butter onto the stock transmission, but the FTI still can only go 2 of the 3 clicks leaving a large gap between it and the pump. Taking measurements the FTI sticks out .661" past the stock one - but when put side to side on the ground they have the same height.
I called a friend over who has swapped his auto GTO trans 3 times, and he couldn't get it to work either. We measured the shafts and inspected them and they are nearly identical. At this point I am at a loss and just pissed - I'm probably just going to put the stock trans/stall back in just so that I can drive the car.
After all of this I spoke with Frank again and we just couldn't figure out what the issue is. He said he will definitely help me get it taken care of though - I'm going to call FTI tomorrow and see what they have to say. I don't know what could possibly be the issue though.
Stock transmission: Stock stall goes on like butter, FTI has a significant gap.
Performabuilt: Neither stock or FTI stall go in.
This doesn't rule out anything, so this will be fun. I'm done for today though, I've spent all day yesterday and a lot of today messing with it."
If anybody has any tips/tricks I would greatly appreciate it - I am at a complete loss here, and Frank felt the same way on the phone. I have tried searching this forum as well as others and haven't found anything like this.
I've had converters go in 5 seconds. Others have taken me 10 minutes and completely maxed out my strength and almost my patience.
It helps to use a screwdriver to rotate the trans pump "tangs" until they are in the 12 and 6 O'clock positions. Then hold the converter with the cut-outs in the same positions and only rotate the converter a few degrees while trying to wiggle it on.
I suspect the FTI converter's cut-outs are a bit on the tight side as this is probably a part that FTI manufacturers. Every trans builder uses the same GM pump rotor and it is unlikely there is any variation there. Measure the width of the cutout on the stock converter; if the FTI's cutout is narrower, I would file it a bit bigger to match the stock measurement.
Greg
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
I will try what mrvedit said by turning the pump myself and aligning the stall to see if I can get it in though.
Greg
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
In the mean time I put my bellhousing and tailhousing back onto my stock trans for installation in the car... I did try aligning the pump and converter on the Performabuilt & FTI with no luck. Hopefully Frank can get it to work though.
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Frank came over today and looked at the trans. First he checked the pump by inspecting and spinning it - it checked out. So he took the FTI converter and tried to seat it but had the same issues I was having - it just wasn't going in all the way. He determined that something must be wrong with the pump bushing so he took the trans and converter with him and will return it once he gets it working properly.
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Frank at PerformaBuilt
Frank
Greg
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
Greg
FTI is and awesome stand up company IMO
Frank
Last edited by performabuilt; Oct 7, 2013 at 10:22 PM.









