[B58togo]

It's back! Should be back on the road next week. I upgraded the torque converter and driveshaft, too. Not looking forward to the 500 mile break-in though.

[WrxToBeamerGuy]

Originally Posted by B58togo

It's back! Should be back on the road next week. I upgraded the torque converter and driveshaft, too. Not looking forward to the 500 mile break-in though.

After everything what was the cost?

Congrats by the way, im super jealous!

[B58]

Nice!

[McBobby Jr]

Sweet, which driveshaft did you go with?

[B58togo]

Originally Posted by WrxToBeamerGuy

After everything what was the cost?

Congrats by the way, im super jealous!

$225 to flatbed car to shop, lol. $175 to ship to Pure, $5,999 + $1750, $250 to ship back, $550 for driveshaft. Not sure yet on labor, maybe 6-8 hours @ $125 per? Should land right around 10k. Definitely married to this car now. Between this and the Pure 800, DS2, and new coils earlier this year, and the fact it will need pads/rotors fairly soon, I almost wish I'd kept the Vargas/DS1 setup on there. Could have sold it, added all this money to the sale and been that much closer to maybe a used G80. Oh well.

Originally Posted by McBobby Jr

Sweet, which driveshaft did you go with?

https://mrmperformance.com/products/...-340i-440i-rwd

[blacksapphire440i]

Originally Posted by B58togo

$225 to flatbed car to shop, lol. $175 to ship to Pure, $5,999 + $1750, $250 to ship back, $550 for driveshaft. Not sure yet on labor, maybe 6-8 hours @ $125 per? Should land right around 10k. Definitely married to this car now. Between this and the Pure 800, DS2, and new coils earlier this year, and the fact it will need pads/rotors fairly soon, I almost wish I'd kept the Vargas/DS1 setup on there. Could have sold it, added all this money to the sale and been that much closer to maybe a used G80. Oh well.



https://mrmperformance.com/products/...-340i-440i-rwd

I'm hoping they make an HP75 or HP76 swap soon. Everything seems to align except the coding portion of it.

[B58togo]

Thought about doing an HP70 swap, but I was reading that it caused a loss of Sport + or something similar and people weren't happy with the overall dynamic. I can't wait to see how this feels with the converter. Definitely need to go to Stage 1 or 2 on the xHP flash. Pure recommends not running Stage 3 with their transmissions.

[B58]

Originally Posted by B58togo

Thought about doing an HP70 swap, but I was reading that it caused a loss of Sport + or something similar and people weren't happy with the overall dynamic. I can't wait to see how this feels with the converter. Definitely need to go to Stage 1 or 2 on the xHP flash. Pure recommends not running Stage 3 with their transmissions.

I wonder why they recommend not running Stage 3. I bet the stage 3 just eats everything up internally. I was even thinking about flashing back to the stage 2

[B58togo]

Originally Posted by B58

I wonder why they recommend not running Stage 3. I bet the stage 3 just eats everything up internally. I was even thinking about flashing back to the stage 2

https://www.puredrivetrainsolutions....ions-about-xhp

[B58]

Originally Posted by B58togo

https://www.puredrivetrainsolutions....ions-about-xhp

Crazy. They don't even recommend the line pressure bump.

[morritse]

10k is really too much for this sort of thing, hopefully a better option comes out soon.

[blacksapphire440i]

Originally Posted by blacksapphire440i

I'm hoping they make an HP75 or HP76 swap soon. Everything seems to align except the coding portion of it.

Originally Posted by morritse

10k is really too much for this sort of thing, hopefully a better option comes out soon.

I agree especially with the recent releases of the clutch packs from cobb_developments that can support up to 600-700wtq (these are also underrated numbers) and sell for $2500-$4000 USD.

Hopefully its possible to code in an HP75 or HP76 as the HP75 has the same exact gear ratios as the HP50 and I think the HP76 does as well (this comes from the g8x powertrain). I've heard the fitment for these trans are perfect but the coding part is where the issues arise.

Personally I would get the Sutphin transmission tune than any of the XHP OTS maps. The custom trans tune is way more intelligent and has all of the torque settings dialed in so your trans will be healthy pushing higher levels of power.

[B58togo]

10k all in is a lot of money, but that's including $1750 for the torque converter, labor, shipping, driveshaft etc. $5999 was for the built trans alone. They used to have a Stage 0 package for $3249, rated for 750/750, which they unfortunately dropped. If Cobb is selling just the clutch packs for $2500-4,000, $5999 isn't out of line when you factor in everything else Pure does. Jack's Transmissions does a similar build for 5400, but then they whack you another 1200 to upgrade the clutch hub.

Billet Clutch Hub

Upgraded Clutches and Steels Throughout Entire Transmission

All New Gaskets, Seals and Rings

Upgrades O-Rings and Seals Within The Valve-Body Assembly

Cog Drives and Shaft Modified For Better Lubrication Transfer

Heat Treated & Hard Anodized Clutch Baskets

Brand New Pan, Filter Element & Fluid

[morritse]

Originally Posted by B58togo

10k all in is a lot of money, but that's including $1750 for the torque converter, labor, shipping, driveshaft etc. $5999 was for the built trans alone. They used to have a Stage 0 package for $3249, rated for 750/750, which they unfortunately dropped. If Cobb is selling just the clutch packs for $2500-4,000, $5999 isn't out of line when you factor in everything else Pure does. Jack's Transmissions does a similar build for 5400, but then they whack you another 1200 to upgrade the clutch hub.

Billet Clutch Hub

Upgraded Clutches and Steels Throughout Entire Transmission

All New Gaskets, Seals and Rings

Upgrades O-Rings and Seals Within The Valve-Body Assembly

Cog Drives and Shaft Modified For Better Lubrication Transfer

Heat Treated & Hard Anodized Clutch Baskets

Brand New Pan, Filter Element & Fluid

I think the price makes sense for what it is, it's a lot of hardware and pretty involved.

It just sucks that even to push a hybrid turbo you have to spend this much to upgrade your trans.

[5w20]

I know I’ll probably get flamed for it, but to me, the pure stage 1 transmission is a ripoff. Not only is it rated pretty low, but then asking you not to run anything higher than a stage 1 on xHP tells me it really isn’t that much of an upgrade over stock. It’s basically new seals, gaskets, and some upgraded clutches. A full frame can easily exceed Pure’s rating and even a stout hybrid could possibly crest over that too.

I’d much rather blow up a stock hp70 (total swap cost about $2k if my theory works). As far as the shifting concerns, I have a plan for this. It’s rather simple and I haven’t seen anyone do it, so I’m going to give it a shot. If it doesn’t work, no big deal. If it does work, my theory will eliminate the hassle of buying a new transmission tune and keep the hp50 shifting logic. I’d rather have the piece of mind in having a larger transmission that can hold more power. This reminds of of back in the day when people compared or tried to justify a built GM 4L60E over a stock/semi built 4L80E. The sheer size makes it much more capable. Size matters.

[abbike18]

Originally Posted by B58

Crazy. They don't even recommend the line pressure bump.

I researched this a bit after I tuned up to significant torque, and found some conflicting information...

Pure says in that link about LPB "What this feature does is allows the transmission to target a much higher line pressure at all times."

But in the xhp app it says "The line pressure is dependent on actual torque from the engine and this option is only active in high torque situations, not during normal cruising."

So I activated it because those high torque situations are really a very small percent of my driving mileage as a daily driver. I welcome the higher pressure during those few pulls.

[B58togo]

Originally Posted by 5w20

I know I’ll probably get flamed for it, but to me, the pure stage 1 transmission is a ripoff. Not only is it rated pretty low, but then asking you not to run anything higher than a stage 1 on xHP tells me it really isn’t that much of an upgrade over stock. It’s basically new seals, gaskets, and some upgraded clutches. A full frame can easily exceed Pure’s rating and even a stout hybrid could possibly crest over that too.

I’d much rather blow up a stock hp70 (total swap cost about $2k if my theory works). As far as the shifting concerns, I have a plan for this. It’s rather simple and I haven’t seen anyone do it, so I’m going to give it a shot. If it doesn’t work, no big deal. If it does work, my theory will eliminate the hassle of buying a new transmission tune and keep the hp50 shifting logic. I’d rather have the piece of mind in having a larger transmission that can hold more power. This reminds of of back in the day when people compared or tried to justify a built GM 4L60E over a stock/semi built 4L80E. The sheer size makes it much more capable. Size matters.

You're certainly entitled to your opinion and I won't flame you, but you're omitting a few key components that it upgrades/addresses. I look forward to your swap. Keep us posted.

[morritse]

Originally Posted by 5w20

I know I’ll probably get flamed for it, but to me, the pure stage 1 transmission is a ripoff. Not only is it rated pretty low, but then asking you not to run anything higher than a stage 1 on xHP tells me it really isn’t that much of an upgrade over stock. It’s basically new seals, gaskets, and some upgraded clutches. A full frame can easily exceed Pure’s rating and even a stout hybrid could possibly crest over that too.

I’d much rather blow up a stock hp70 (total swap cost about $2k if my theory works). As far as the shifting concerns, I have a plan for this. It’s rather simple and I haven’t seen anyone do it, so I’m going to give it a shot. If it doesn’t work, no big deal. If it does work, my theory will eliminate the hassle of buying a new transmission tune and keep the hp50 shifting logic. I’d rather have the piece of mind in having a larger transmission that can hold more power. This reminds of of back in the day when people compared or tried to justify a built GM 4L60E over a stock/semi built 4L80E. The sheer size makes it much more capable. Size matters.

Are you going to swap the tcu from your 50 into the 70?
I did this when I blew my s4 transmission to avoid firmware hassle

[blacksapphire440i]

Originally Posted by B58togo

You're certainly entitled to your opinion and I won't flame you, but you're omitting a few key components that it upgrades/addresses. I look forward to your swap. Keep us posted.

Originally Posted by morritse

Are you going to swap the tcu from your 50 into the 70?
I did this when I blew my s4 transmission to avoid firmware hassle

There is always the possibility of getting the firmware from an HP75 and transferring that firmware into an HP76 (the new trans found in the S58 platforms) to allow for an HP76 swap w/o any software issues. Although the price may be a bit much for that. I'm not sure if you can get away with an HP75 swap though. I think that is very much possible. The HP76 is only an updated version of the HP75 just like how the HP51 is the updated version of the HP50..

[McBobby Jr]

It will be interesting to see when and if people start swapping in HP76’s. Availability doesn’t look to good from what I can see looking out there, and prices aren’t cheap even used. Brand new is over 10k and used is somewhere between 5-10k. It looks like no matter the route taken for upgrading our transmissions, it will cost a few thousand and some more at the minimum.

[blacksapphire440i]

Originally Posted by McBobby Jr

It will be interesting to see when and if people start swapping in HP76’s. Availability doesn’t look to good from what I can see looking out there, and prices aren’t cheap even used. Brand new is over 10k and used is somewhere between 5-10k. It looks like no matter the route taken for upgrading our transmissions, it will cost a few thousand and some more at the minimum.

I wanna see people swap the HP75 into our cars. The gear ratios and everything are the exact same for the HP50 and if I am not mistaken these are the same transmissions that go into the hellcats and BMW M50i's (M550i, M850i, etc). And their cost is relatively low. (3k for a new trans)

The torque rating for the HP75 is also a tad bit higher than the HP70 so that is also a bonus

[McBobby Jr]

Originally Posted by blacksapphire440i

I wanna see people swap the HP75 into our cars. The gear ratios and everything are the exact same for the HP50 and if I am not mistaken these are the same transmissions that go into the hellcats and BMW M50i's (M550i, M850i, etc). And their cost is relatively low. (3k for a new trans)

The torque rating for the HP75 is also a tad bit higher than the HP70 so that is also a bonus

That’s another option, cost and availability is much better over the HP76 and we can get them here in the states unlike the HP70’s which require to be shipped over the Atlantic. For 6 grand on the HP75, stage 1 by Pure Drivetrain Solutions will hold up to 1200hp/1000tq so that’s good to see an aftermarket is there. How do the HP70 and HP75 compare in terms of hp/tq capacity? I figure the HP75 should handle more hence the name.