8hp70 zip kit

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Ram1683

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OK I can't find a whole lot on this so I'll just ask. Has anybody else done the zip kit? I just ordered it from mine because I'm insane with preventative stuff. Just curious if it at all feels different.
 

caulk04

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Next time maybe add the link?

First I've heard of this kit, I don't imagine there's any need for it until there's an issue. Perhaps as preventive once you're 100k or better, which would be a second service on my schedule.
 

Wild one

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OK I can't find a whole lot on this so I'll just ask. Has anybody else done the zip kit? I just ordered it from mine because I'm insane with preventative stuff. Just curious if it at all feels different.
I looked at the Zip Kit a few years ago,but never did order it,so i'm curious how it pans out for you.Keep us updated on your thoughts and findings.
 

crash68

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I don't imagine there's any need for it until there's an issue.
^^^ this exactly

when people are putting over 300K-400K miles on these 8HP70 transmissions while mostly towing with just fluid and filter changes every 100K, I'd wait till there's an issue.
 

Wild one

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I don't think it's a bad kit, if installed as preventive maintence, especially if you're runing a bit of power ahead of the transmission.
 

crazykid1994

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Thank you for the link I found this browsing the site and found it interesting

View attachment 499746
That’s not a truck part. The trucks thermal is attached to the side. Quite a few of us have bypassed the thermostat or completely removed the heater. I have all the parts to install a 140° inline thermal block to help keep the temp where I want it. I like 145-150° trans temp. My truck seems happiest there and my butt dyno says that it shifts better in the 140° range. Also my truck seems to shift higher after I get above 140°. Im not sure if you remember @Wild one when I was asking about my truck not shifting at the programmed shift point but I’ve noticed it seems more likely not to short shift when the trans is hotter above the 140° mark. Wish I had the money to buy an FRP cam and switch to HP tuners for FRP. Probably be next years Christmas gift to myself.
 

Wild one

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A good transmission tune really wakes the 8 speed up Khris. Mine still shifts the same as before we deleted the thermal unit and thermostat,but my shift points are set at roughly 6100/6200 for the 1-2 shift / 6300/6400 rpm for the 2-3 shift and 6500/6600 for the rest of the shift points which is considerably higher then the stock 5600 rpm shift points. The shift points are commanded at the lower rpm,but by the time the transmission makes the complete shift they're about a 100 rpm higher then commanded
 

crazykid1994

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A good transmission tune really wakes the 8 speed up Khris. Mine still shifts the same as before we deleted the thermal unit and thermostat,but my shift points are set at roughly 6100/6200 for the 1-2 shift / 6300/6400 rpm for the 2-3 shift and 6500/6600 for the rest of the shift points which is considerably higher then the stock 5600 rpm shift points. The shift points are commanded at the lower rpm,but by the time the transmission makes the complete shift they're about a 100 rpm higher then commanded
Hemi fever has mine set at 6200 across the board but most times it shifts between 5500-5600 unless I’m going from a dead stop. After 140° it seems to shift more around 6000-6200. But I think that’s something to do with the way Sean does the trans tuning. He doesn’t really adjust to many parameters. Just up’s the shift point and bumps up line pressure to make the shifts snappier. I know FRP and a few others actually go in the shift tables and adjust other parameters as well but that requires HP tuners to get more in depth. When I talked to Tapp he said the same thing about adjusting other parameters as well but using HP tuners. I’m guessing in one of the tables there is a temp range for warmup that pertains more to the cars for shifting that the trucks don’t usually reach on stock form and it needs adjusting. Just a guess. I know Matt ficak uses hemi fever and Matt said his trucks reacts just like mine
 

Wild one

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Hemi fever has mine set at 6200 across the board but most times it shifts between 5500-5600 unless I’m going from a dead stop. After 140° it seems to shift more around 6000-6200. But I think that’s something to do with the way Sean does the trans tuning. He doesn’t really adjust to many parameters. Just up’s the shift point and bumps up line pressure to make the shifts snappier. I know FRP and a few others actually go in the shift tables and adjust other parameters as well but that requires HP tuners to get more in depth. When I talked to Tapp he said the same thing about adjusting other parameters as well but using HP tuners. I’m guessing in one of the tables there is a temp range for warmup that pertains more to the cars for shifting that the trucks don’t usually reach on stock form and it needs adjusting. Just a guess. I know Matt ficak uses hemi fever and Matt said his trucks reacts just like mine
As soon as HP started servicing the Dodge market i dropped Diablo and went to HP.Still have my old T1000 in the truck for the gauges and to clear codes,but that's it,lol. Jon Sipple and Jeremy Satera are probably 2 of the top transmission tuners around,but Ryan/FRP isn't far behind them.
 
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Mister Luck

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That’s not a truck part. The trucks thermal is attached to the side. Quite a few of us have bypassed the thermostat or completely removed the heater. I have all the parts to install a 140° inline thermal block to help keep the temp where I want it. I like 145-150° trans temp. My truck seems happiest there and my butt dyno says that it shifts better in the 140° range. Also my truck seems to shift higher after I get above 140°. Im not sure if you remember @Wild one when I was asking about my truck not shifting at the programmed shift point but I’ve noticed it seems more likely not to short shift when the trans is hotter above the 140° mark. Wish I had the money to buy an FRP cam and switch to HP tuners for FRP. Probably be next years Christmas gift to myself.
Or they have this one instead

03D4C015-77F7-48D2-89AA-CC9059A9CE1D.jpeg
Wonder how much they’re asking ?

My 5.7 “short shifts” better under load with higher octane fuel, notability non-ethanol fuel.
 

crazykid1994

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Or they have this one instead

View attachment 499762
Wonder how much they’re asking ?

My 5.7 “short shifts” better under load with higher octane fuel, notability non-ethanol fuel.
Short shifting is bad. My truck is programmed to shift at 6200 under full throttle but a parameter somewhere is telling my truck to shift earlier than programmed. Usually it’s due to a table that didn’t get adjusted or a safety parameter that wasn’t disabled since factory this engine wasn’t designed to spin over 5600rpm. Also that is still not for the truck. @caulk04 is the one who sells the truck bypass. Nobody else does currently.
 

caulk04

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They're on the right track keeping things simple like I do with my thermostat eliminator. But as mentioned none of them are for the 8hp Rams. Mine fits all 8hps that came factory in a 1500 Ram. To my knowledge they're the only ones that have a heat exchanger plumbed with engine coolant.
 

Mister Luck

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They're on the right track keeping things simple like I do with my thermostat eliminator. But as mentioned none of them are for the 8hp Rams. Mine fits all 8hps that came factory in a 1500 Ram. To my knowledge they're the only ones that have a heat exchanger plumbed with engine coolant.
Part number matches on the second one
I posted 55111005AC

68A26566-61F5-46E7-A4A2-36CD59CF84AF.jpeg

 
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Wild one

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Part number matches on the second one
I posted 55111005AC

View attachment 499777

That's for the 6 speed trucks,won't fit your truck if you have the 8 speed.Read the fitment notes at the bottom,says it's for the 6 speed 65RFE. That thermostat will be behind the grill towards the upper side of the A/C condensor on the pass side of the truck,you can see it if you look through the grill.The 8 speeds in the 1500's uses a totally differant set-up,that's mounted to the side of the transmission
 

G-Ride990

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Cleaned up the thread.

Please keep it civil and on-topic.
 

Mister Luck

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Yep same part as for what caulk sells maybe cheaper?
Oh I see I don’t think it’s any competition.
Checked the part number definitely for 8hp.. suprized you don't know that already.

Edit
this morning parts said this fits
this evening parts don’t even carry it

I think this thread may gave generated a lot of attention and because of part revisions and part number adoptions the parts houses are not sure

08176A90-B4B1-48C1-823E-DC67DAC36F3E.jpeg

7B96DC77-CBF5-4565-90C3-F22B46CD7C03.jpeg
01879F41-EE8F-4D25-A0A9-E706FEFBDDBF.jpeg
I found the correct part and basically this turns out to be a post for those afraid to ask questions, or be ridiculed and called names for doing so or lack of trust /belief in those who or associate with those that habitually do so..

If one can tune multiple transmission shift points on their own with a piggyback why would it be advantageous to pay someone else to do it for you ?
 
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