[aren93]

Hey guys I'm getting bored of my car so my new goal is to upgrade to a stage 2 turbo maybe VTT, RB, Pure when they're released, buy the double barrel shotgun HPFP to run 100% e85 and a Cobb V3 and a Meth Kit. Can I push 500 whp safely? If I will even push that much. I heard that over 550 whp the tranny starts slipping for automatics. Any help on this would be great, thanks.

[PR3CI5N]

Don't waste your time with the VTT shotgun or turbo. Wait for Pure stage 2 and to see how the BMS port injection kit works. Pure just fitted the N54 PI kit onto their E90 N55 with the stage 2 turbo. Results should be posted next week so stay tuned.

500whp/wtq is no problem for you transmission so don't stress on that.

[aren93]

Originally Posted by PR3CI5N

Don't waste your time with the VTT shotgun or turbo. Wait for Pure stage 2 and to see how the BMS port injection kit works. Pure just fitted the N54 PI kit onto their E90 N55 with the stage 2 turbo. Results should be posted next week so stay tuned.

500whp/wtq is no problem for you transmission so don't stress on that.

Hmm ok thanks for the info man I can't wait to see those results. What do you think is the max whp/wtq I can have safely?

[ChrisMcP05]

Originally Posted by aren93

Hmm ok thanks for the info man I can't wait to see those results. What do you think is the max whp/wtq I can have safely?

Not trying to crash your thread, but adding to this - difference between the MT and AT in power that it can hold? Also X-drive system ability to hold?

[weehe126]

600/600 seems to be the magic number before auto trans problems. But some have done the level 10 upgrade and not had problems. It seems weight dependent as Terry is in the 700s but has done a lot of weight reduction and had no problems. I really dont think you will have problems if you stay stage 2. Once you go custom its a different story.

[Unklejoe]

There's no real horsepower limitation of the trans. There's a torque limitation and I'd assume it's in the 550-600 ft*lb range.

Larger turbo cars will be able to make more horsepower on a stock trans because they usually don't make as much torque as a smaller turbo car that's maxing out their turbo. To an extent...

[tke344]

If you're really just looking to hit 500-550WHP you might not even need the double barrell, I think they said the single was good to 550 or so on straight E85. But since you'd be running meth also that'll give you some fuel headroom. Your problem will be the lack of a back end flash, I'd be a little worried about the transmission with just a JB4.

[Schmidty335i]

Originally Posted by aren93

Hey guys I'm getting bored of my car so my new goal is to upgrade to a stage 2 turbo maybe VTT, RB, Pure when they're released, buy the double barrel shotgun HPFP to run 100% e85 and a Cobb V3 and a Meth Kit. Can I push 500 whp safely? If I will even push that much. I heard that over 550 whp the tranny starts slipping for automatics. Any help on this would be great, thanks.

no one as far as i know has even hit the 500whp mark on the n55 yet, Terry probably could have if he wanted too lol. so as of now its hard to stay what you can run safely. the most important part is just making sure you have everything tuned properly and have all supporting mods done that are needed.

also for the guy that was asking about the MT clutch power. i have never dyno'd my car but my mods are: JB4 G5 iso w/ff wires, pure stg 1 turbo, vrsf xless dp, vrsf 7" fmic, cp, bms meth kit running boost juice, K&N drop in filter. i am running 19psi and that put down enough power to make my clutch slip and start giving me that clutch burning smell. so if you are going to go stg2 turbo i advise you upgrade your clutch first. my car has 20500 miles on it.

[aren93]

Originally Posted by weehe126

600/600 seems to be the magic number before auto trans problems. But some have done the level 10 upgrade and not had problems. It seems weight dependent as Terry is in the 700s but has done a lot of weight reduction and had no problems. I really dont think you will have problems if you stay stage 2. Once you go custom its a different story.

Ahh ok I mean eventually I plan on going "custom" or pushing in the 700s so I can always just do the level 10 upgrade then.

[turbo_chris]

The factory pressure plate on the MT won't take the torque of a maxed out stage 1 turbo. My car started slipping as well at 20psi (FBO + pure stage 1). I just installed the 550 clutch kit and am 250 miles into my break in.

[aren93]

Originally Posted by Unklejoe

There's no real horsepower limitation of the trans. There's a torque limitation and I'd assume it's in the 550-600 ft*lb range.

Larger turbo cars will be able to make more horsepower on a stock trans because they usually don't make as much torque as a smaller turbo car that's maxing out their turbo. To an extent...

Oh ok so right now I have more torque but once I upgrade the turbo I should have more hp then torque. So technically I can have 650whp and 550wtq

[aren93]

Originally Posted by tke344

If you're really just looking to hit 500-550WHP you might not even need the double barrell, I think they said the single was good to 550 or so on straight E85. But since you'd be running meth also that'll give you some fuel headroom. Your problem will be the lack of a back end flash, I'd be a little worried about the transmission with just a JB4.

Yeah I actually want the double barrel just because eventually I will want a bigger turbo lol and its only $300 more. Also yeah I'm going to buy the Cobb V3 as well and run it with my JB4 for the backend flash and to have a better tune.

[aren93]

Originally Posted by Schmidty335i

no one as far as i know has even hit the 500whp mark on the n55 yet, Terry probably could have if he wanted too lol. so as of now its hard to stay what you can run safely. the most important part is just making sure you have everything tuned properly and have all supporting mods done that are needed.

also for the guy that was asking about the MT clutch power. i have never dyno'd my car but my mods are: JB4 G5 iso w/ff wires, pure stg 1 turbo, vrsf xless dp, vrsf 7" fmic, cp, bms meth kit running boost juice, K&N drop in filter. i am running 19psi and that put down enough power to make my clutch slip and start giving me that clutch burning smell. so if you are going to go stg2 turbo i advise you upgrade your clutch first. my car has 20500 miles on it.

Thanks for the reply and yea I just want to make sure I do it properly and have all the mods I need.

[JETmn]

You can also help out the tranny and limit boost in the mid range and go higher in the upper RPM. HP means nothing to the drivetrain, it is all about torque as HP is just a function of torque. 550 ft/lb is the generally accepted limit before you really start shortening the life of the tranny. I have seen closer to 600 being pushed, but we will have to see how long they last. Terry pushes a ton of power, but refuses to launch the car and that makes me sad.

With a Stage 2 and everything that is available today you should be able to get ~520whp. We'll have to see if the RB or Pure stage 2 put out more power than the VTT. I am guessing they will all be pretty close as I think we are maxing out the turbine housing. This turbo is stupid tiny and I can't believe they are getting 500whp out of it. I have a couple of tricks I am going to try with my stage 2 when I put it on. I may just skip it and go with a BW 7163 custom setup as I have the tools/ability to make my own manifold. Not sure I want to deal with a custom setup right now though.

[iuhutch]

Originally Posted by PR3CI5N

Don't waste your time with the VTT shotgun or turbo. Wait for Pure stage 2 and to see how the BMS port injection kit works. Pure just fitted the N54 PI kit onto their E90 N55 with the stage 2 turbo. Results should be posted next week so stay tuned.

500whp/wtq is no problem for you transmission so don't stress on that.

This is the exact setup a lot of us out here are waiting on and going with! Couldn't have said it better...

Also 100% agree about the VTT thing (which is a shame).

In speaking with PURE, it appears that the stage 2 initial results even exceeded their expectations. The machine work this guys do is superb to say the least.

[iuhutch]

Originally Posted by JETmn

I may just skip it and go with a BW 7163 custom setup as I have the tools/ability to make my own manifold. Not sure I want to deal with a custom setup right now though.

Ohhhhhh yeaaaaa please tell me more! offline that is

[ChrisMcP05]

Originally Posted by Schmidty335i

also for the guy that was asking about the MT clutch power. i have never dyno'd my car but my mods are: JB4 G5 iso w/ff wires, pure stg 1 turbo, vrsf xless dp, vrsf 7" fmic, cp, bms meth kit running boost juice, K&N drop in filter. i am running 19psi and that put down enough power to make my clutch slip and start giving me that clutch burning smell. so if you are going to go stg2 turbo i advise you upgrade your clutch first. my car has 20500 miles on it.

Thanks for the advice Schmidty. I'm just doing minor mods for now - trying to just get a little more power out of it and not looking at the 500 range. Figure AP, intake, CP, DP and FMIC to start. Going to probably leave it at that for a while

[PeterPure]

Originally Posted by JETmn

You can also help out the tranny and limit boost in the mid range and go higher in the upper RPM. HP means nothing to the drivetrain, it is all about torque as HP is just a function of torque. 550 ft/lb is the generally accepted limit before you really start shortening the life of the tranny. I have seen closer to 600 being pushed, but we will have to see how long they last. Terry pushes a ton of power, but refuses to launch the car and that makes me sad.

With a Stage 2 and everything that is available today you should be able to get ~520whp. We'll have to see if the RB or Pure stage 2 put out more power than the VTT. I am guessing they will all be pretty close as I think we are maxing out the turbine housing. This turbo is stupid tiny and I can't believe they are getting 500whp out of it. I have a couple of tricks I am going to try with my stage 2 when I put it on. I may just skip it and go with a BW 7163 custom setup as I have the tools/ability to make my own manifold. Not sure I want to deal with a custom setup right now though.

You are correct that the turbo is stupid tiny. At least the stock wheel combo is. I was under the impression the turbine housing was large enough though.

Rob thinks the restriction is the air canals from manifold into turbine area. Anyways VTT stage2 made only 15 whp more running 22 psi or 27 psi. And not reaching 500whp.

I am guessing the pure stage2 will kick some ass. We will find out soon enough!

[JETmn]

I agree we have reached a choke point somewhere in the engine/turbo area. I also think it is the turbine passages and there are a few ways to help that out, but they are labor intensive.

This size turbo in a Garrett would not even be a T3 size turbo just for comparison. Probably more like a T28. A T28 is usually 330-340whp, so to be able to pull 500whp from a similar size housing is pretty amazing. You are usually looking at a 50 trim/.63 T3 or bigger to do that.

[aren93]

Originally Posted by JETmn

You can also help out the tranny and limit boost in the mid range and go higher in the upper RPM. HP means nothing to the drivetrain, it is all about torque as HP is just a function of torque. 550 ft/lb is the generally accepted limit before you really start shortening the life of the tranny. I have seen closer to 600 being pushed, but we will have to see how long they last. Terry pushes a ton of power, but refuses to launch the car and that makes me sad.

With a Stage 2 and everything that is available today you should be able to get ~520whp. We'll have to see if the RB or Pure stage 2 put out more power than the VTT. I am guessing they will all be pretty close as I think we are maxing out the turbine housing. This turbo is stupid tiny and I can't believe they are getting 500whp out of it. I have a couple of tricks I am going to try with my stage 2 when I put it on. I may just skip it and go with a BW 7163 custom setup as I have the tools/ability to make my own manifold. Not sure I want to deal with a custom setup right now though.

Damn yeah that sounds about right and lol I think we all can't wait to start upgrading our turbos