Franks custom trans 4l60e build sheets and prices
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From: Louisiana
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From: BERWICK PA
Pump gear ? hmm ok maybe I have answer, At higher RPM and LINE in lockup (I am assumming you would be locked in 4th at WOT ) all these things are pushing the converter away from the trans, Do you or can you get any pictures of the broken pump gear from each side ?
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Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
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From: Louisiana
Pump gear ? hmm ok maybe I have answer, At higher RPM and LINE in lockup (I am assumming you would be locked in 4th at WOT ) all these things are pushing the converter away from the trans, Do you or can you get any pictures of the broken pump gear from each side ?
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From: BERWICK PA
Actually check the converter to flex plate clearance and make sure it starts at the lower end about 1/8 inch . And yes get phtos of the broken gears that can tell us alot ,
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Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
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converter was measured when installed, this is strictly a track car and honestly it has alot of top of the line parts. I wont name the transmission company but it was built by a well known company. Tuner says hold it on 3rd over the finish line.
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From: BERWICK PA
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Brett Foote TECH Fanatic
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From: Louisiana
Hughes 4l80e and the converter spacing was measured. It lost all gears, had to pull it off the track with 4 wheeler. The first time it happened pump gear was replaced and clutch packs and now it did the exact same thing. Transmission is on its way to Georgia to be taken apart and evaluated by his trans builder but knowing what happened the first time he knows it did the same exact thing again.
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Hughes 4l80e and the converter spacing was measured. It lost all gears, had to pull it off the track with 4 wheeler. The first time it happened pump gear was replaced and clutch packs and now it did the exact same thing. Transmission is on its way to Georgia to be taken apart and evaluated by his trans builder but knowing what happened the first time he knows it did the same exact thing again.
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From: Louisiana
Guys its a guaranteed known breakage point, this car can not shift into 4th gear at wot. You can run it all day up to 3rd with no issues but as soon as it hits 4th gear the transmission will be smoked.
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From: BERWICK PA
Looking forward to photos of the pump gear .
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Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
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I havent received them yet, once i do ill post them. Transmisssion is going to Georgia for rebuild and he also has a new long block being built and from what im hearing GPI is supposed to tune the car for him this go around to rule out any tuning concerns.
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From: BERWICK PA
So I am betting either due to a weak flex plate assuming clearance good or even thrust engine thrust bearing excessive . Converter is pushing far enough forward to disengage pump , Photos will tell the tale.
The way I deal with this possible issue is to place a orifice restrictor in converter feed for units I know will operate at high line or constant max line. Also exactly what max line is at high RPM should be check after reasemble and install . It may be just "TO DAMN HIGH" Llie the rent lol. I was helping a guy years ago with a E40D that had been set up as full manual max line with switch for lockup , He didnt have pump issues but had a couple LOCKUP CLUTCH failures. We put a gauge on it and I had him go wot NOT LOCKED 375 PSI and we had our answer the extreme presure was distorting the converter face in lockup and destroying the clutch, worked out getting it down to 250 psi max using one of those I dont care for them but it worked presure limit mod from a transgo kit and no more issues. I would have gone a different route but hey it did work.
Something to check IMO for sure.
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Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
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From: Louisiana
I dont think tuning but and gear picks will verify between HIGH LINE AND TCC LOCKED both push converter forward I have noted this on a former DYNO I use to test on , in those conditions since the trans had no rear support enough presure existed to literally raise up rear of trans a measure cooler line presure goes very high ,
So I am betting either due to a weak flex plate assuming clearance good or even thrust engine thrust bearing excessive . Converter is pushing far enough forward to disengage pump , Photos will tell the tale.
The way I deal with this possible issue is to place a orifice restrictor in converter feed for units I know will operate at high line or constant max line. Also exactly what max line is at high RPM should be check after reasemble and install . It may be just "TO DAMN HIGH" Llie the rent lol. I was helping a guy years ago with a E40D that had been set up as full manual max line with switch for lockup , He didnt have pump issues but had a couple LOCKUP CLUTCH failures. We put a gauge on it and I had him go wot NOT LOCKED 375 PSI and we had our answer the extreme presure was distorting the converter face in lockup and destroying the clutch, worked out getting it down to 250 psi max using one of those I dont care for them but it worked presure limit mod from a transgo kit and no more issues. I would have gone a different route but hey it did work.
Something to check IMO for sure.
So I am betting either due to a weak flex plate assuming clearance good or even thrust engine thrust bearing excessive . Converter is pushing far enough forward to disengage pump , Photos will tell the tale.
The way I deal with this possible issue is to place a orifice restrictor in converter feed for units I know will operate at high line or constant max line. Also exactly what max line is at high RPM should be check after reasemble and install . It may be just "TO DAMN HIGH" Llie the rent lol. I was helping a guy years ago with a E40D that had been set up as full manual max line with switch for lockup , He didnt have pump issues but had a couple LOCKUP CLUTCH failures. We put a gauge on it and I had him go wot NOT LOCKED 375 PSI and we had our answer the extreme presure was distorting the converter face in lockup and destroying the clutch, worked out getting it down to 250 psi max using one of those I dont care for them but it worked presure limit mod from a transgo kit and no more issues. I would have gone a different route but hey it did work.
Something to check IMO for sure.