Spraying thru shifts on a Tip?

[Electro]

Hi all

Just wondering for those who are using Nitrous on a Tiptronic transmission
Are you letting the transmission shift while the Nitrous is still spraying?

At the moment I do not spray through the shifts but I am aware that the tip
tranny is stronger than I thought so it might be able to take it (shot size dependent!)

Questions and comments please

[justincredible]

Hi all

Just wondering for those who are using Nitrous on a Tiptronic transmission
Are you letting the transmission shift while the Nitrous is still spraying?

At the moment I do not spray through the shifts but I am aware that the tip
tranny is stronger than I thought so it might be able to take it (shot size dependent!)

Questions and comments please

Electro

you should post in the S4 section. I saw your intro post. The car sounds fun definitly re post that in the main B6 S4 section.

I have the JHM nitrous kit that sprays into each individual cylinder direct port it mixes the gas and the nos. Spraying between gears is going to be highly disscouraged. Because when you think about it your going to be spraying while the car is trying to cut the power for the shift. So the tq converter isnt probably unlocked for long but your spraying while in a state of kinda neutral. Its a lot of free rev load and its very hard on the clutches.

I love my JHM kit and I have more bottles through that system then I count. My thoughts are not a great idea. I have but also keep in mind I have the JHM tcu tune so my transmission shifts faster then a normal transission and its holds more power and clamps harder. The few times I sprayed everything seemed ok but it was very very harsh on the shifts.

[Electro]

Thanks for the advice - Noob mistake post on my part

I will repost in the S4 Section.
;D

[Electro]

Hi all

Just wondering for those who are using Nitrous on a Tiptronic transmission
Are you letting the transmission shift while the Nitrous is still spraying?

At the moment I do not spray through the shifts but I am aware that the tip
tranny is stronger than I thought so it might be able to take it (shot size dependent!)

Questions and comments please

Reply By Justincredible…

Electro

you should post in the S4 section. I saw your intro post. The car sounds fun definitly re post that in the main B6 S4 section.

I have the JHM nitrous kit that sprays into each individual cylinder direct port it mixes the gas and the nos. Spraying between gears is going to be highly disscouraged. Because when you think about it your going to be spraying while the car is trying to cut the power for the shift. So the tq converter isnt probably unlocked for long but your spraying while in a state of kinda neutral. Its a lot of free rev load and its very hard on the clutches.

I love my JHM kit and I have more bottles through that system then I count. My thoughts are not a great idea. I have but also keep in mind I have the JHM tcu tune so my transmission shifts faster then a normal transission and its holds more power and clamps harder. The few times I sprayed everything seemed ok but it was very very harsh on the shifts.

So I moved the post to here. ;D

[p3u]

Hi all

Just wondering for those who are using Nitrous on a Tiptronic transmission
Are you letting the transmission shift while the Nitrous is still spraying?

At the moment I do not spray through the shifts but I am aware that the tip
tranny is stronger than I thought so it might be able to take it (shot size dependent!)

Questions and comments please

Electro

you should post in the S4 section. I saw your intro post. The car sounds fun definitly re post that in the main B6 S4 section.

I have the JHM nitrous kit that sprays into each individual cylinder direct port it mixes the gas and the nos. Spraying between gears is going to be highly disscouraged. Because when you think about it your going to be spraying while the car is trying to cut the power for the shift. So the tq converter isnt probably unlocked for long but your spraying while in a state of kinda neutral. Its a lot of free rev load and its very hard on the clutches.

I love my JHM kit and I have more bottles through that system then I count. My thoughts are not a great idea. I have but also keep in mind I have the JHM tcu tune so my transmission shifts faster then a normal transission and its holds more power and clamps harder. The few times I sprayed everything seemed ok but it was very very harsh on the shifts.

Please elaborate on how the JHM tune clamps harder as there is no mechanical modification.

I am curious as I have a custome built valve body to accomplish this.

[justincredible]

When people mechanically modify the 6hp valve body all they can do is bump the line pressure, change some springs and maybe drill out some of the vally paths. None of that is dynamic. That used to work great back before valve bodys were electronically controlled.

You can only mechanically bump the line pressure so much. Other wise the car will slam into R and D when just putting the car into gear. From there the cars would also slam into shifts at low low speeds.

With the JHM TCU tune you can control the pump speed, line pressure through all the RPM, hold the valves open as long or as short as you wish. You can control when the car shifts how fast the shift is and how much clamp force pressure is delivered on each shift and lock up of the tq converter.

Your able to speed up the shift add more line pressure. You can increase the clamp force and duration of the pressure.

With a mechanical approch you cant run any more line pressure after a certian limit because the car will just bleed off the extra line pressure. Normally you only see better shifts down low but no real change in the upper rpm. It might be slightly better in the upper rpm but the TCU has line pressure limits so if you go over those its just going to bleed off the extra pressure. With the JHM TCU tune the line, clamp and pump pressure limits are rasied along with all the needed supporting systems.

I had a modified valve body from level 10 it just kinda made the car slam into gear the car wasnt actually any faster and it still slipped on the 1-2 shift. After I got the JHM TCU tune. I now have higher shift rpm points and faster shifts with more clamping force. The cars 1/4 mile time was better as well.

[p3u]

When people mechanically modify the 6hp valve body all they can do is bump the line pressure, change some springs and maybe drill out some of the vally paths. None of that is dynamic. That used to work great back before valve bodys were electronically controlled.

You can only mechanically bump the line pressure so much. Other wise the car will slam into R and D when just putting the car into gear. From there the cars would also slam into shifts at low low speeds.

With the JHM TCU tune you can control the pump speed, line pressure through all the RPM, hold the valves open as long or as short as you wish. You can control when the car shifts how fast the shift is and how much clamp force pressure is delivered on each shift and lock up of the tq converter.

Your able to speed up the shift add more line pressure. You can increase the clamp force and duration of the pressure.

With a mechanical approch you cant run any more line pressure after a certian limit because the car will just bleed off the extra line pressure. Normally you only see better shifts down low but no real change in the upper rpm. It might be slightly better in the upper rpm but the TCU has line pressure limits so if you go over those its just going to bleed off the extra pressure. With the JHM TCU tune the line, clamp and pump pressure limits are rasied along with all the needed supporting systems.

I had a modified valve body from level 10 it just kinda made the car slam into gear the car wasnt actually any faster and it still slipped on the 1-2 shift. After I got the JHM TCU tune. I now have higher shift rpm points and faster shifts with more clamping force. The cars 1/4 mile time was better as well.

Thanks for the informative response.

Also, what rpm does the car now shift at?