can the cvt tran. hold up to a turbo?

Post by **altered808** » Tue Jul 29, 2008 12:48 pm

Whats up guys/girls? I was woundering what everyone thinks about the cvt trans(2.5s) holding up to a turbo. Will the transmission last or just fold under the power? Because of the smoothness and low rpm drop when shifting will the turbo not lag as much and just scream power? Can anyone help me?

Post by **Marisha** » Tue Jul 29, 2008 2:50 pm

looks like so far so good for this coupe http://forums.altimas.org/zerothread/355026

Post by **altered808** » Wed Jul 30, 2008 1:33 pm

Is the trannys different for the v6 to the 4 cylinder? What is your boost at and do you get a lot of lag when the car shifts?

Post by **toetruck** » Sat Sep 06, 2008 7:30 am

http://www.youtube.com/watch?v=1Q_yWMziHYs

seems to be good so far

Post by **Importroller** » Sat Sep 06, 2008 8:57 pm

the CVT has problems maintaining funtionality on boost

Post by **Colton92** » Sun Sep 07, 2008 10:56 am

A 2.5 may not fair as well as the 3.5

Post by **Importroller** » Sun Sep 21, 2008 8:38 pm

the only turbo'd CVT'd AC I know of is back to stock right now so the dealer can fix the transmission.

Post by **adidas2go** » Fri Sep 26, 2008 4:25 am

and who told you this?

Post by **Importroller** » Sat Sep 27, 2008 8:31 pm

...Hey Blake, I know a lot of the same people he does, amazingly we never met.
Modified by Importroller at 2:42 AM 9/28/2008

Post by **adidas2go** » Sun Sep 28, 2008 5:35 am

You know a lot of the same people who does?

Post by **Importroller** » Sun Sep 28, 2008 8:10 pm

sent you an email

Post by **digitalbow** » Mon Sep 29, 2008 8:04 pm

^^^sounds like a sensitive subject. I guess the answer is 'no'.

Post by **dangeris** » Thu Oct 02, 2008 11:39 pm

I know this thread is for a 2.5 but if any would know if the cvt would hold up or fold, I would would think Blake would know

Post by **marlin29311** » Fri Oct 03, 2008 3:26 am

the CVT is a CVT - there is no difference between the 2.5 CVT and the 3.5 CVT except for the final drive ratio...

Post by **SuBXeRo** » Mon Oct 27, 2008 12:14 pm

there has to be a difference, if the 2.5 has some 100hp and 100torque less than a 3.5, the turbo on a 2.5 would hold up just fine. Realisitically you are only adding about 70hp typically on a turbo anyways. Just to throw some more banter food out there.....

As for a turbo on a 3.5, i wouls assume after all the banter from above that the transmission can't hold up on the extra power. After reading how nissan's cvt actually works, its a delicate component and i can see it being easily stressed unlike a regular transmission.

Post by **Importroller** » Mon Oct 27, 2008 3:39 pm

I found out this weekend that the belt wasnt the problem. An actuator or solenoid in the transmission couldnt handle the heat generated and caused it to fail. so with lower boost (3-5lbs) it should be ok on a stock transmission. To me, not really worth it on a a CVT car, I would rather have a manual and be able to boost up to 7-11lbs depending on tuning, and really enjoy the power of the turbo

Post by **Dexion** » Sat Nov 01, 2008 3:09 pm

Makes sense, CVT's get pretty hot, its no wonder they have such a big cooling system. I wonder if the CVT's on the 09 Maxima's can handle it though. Nissan says its a newer version of the Xtronic CVT and they are already just shy of 300hp.

Post by **mcheddadi** » Sat Nov 01, 2008 4:15 pm

Dexion wrote:Makes sense, CVT's get pretty hot, its no wonder they have such a big cooling system. I wonder if the CVT's on the 09 Maxima's can handle it though. Nissan says its a newer version of the Xtronic CVT and they are already just shy of 300hp.

6MT ftw

Post by **brokendan** » Fri Jan 09, 2009 10:19 pm

do they make a transmission cooler for the cvt? and if so that would help out and make it a lil safer wouldnt it.

Post by **Importroller** » Sat Jan 10, 2009 5:49 pm

Blake did put a transmission cooler on his car now to help handle the extra heat. Time will tell if its going to hold up

Post by **adidas2go** » Sun Jan 11, 2009 7:32 am

The first time went did this turbo setup without transmission cooling, and the transmission dumped in 2 weeks. This time, we put in a massive transmission cooler that has been holding the boost fine for 2 months. Now, I know the tell tell signs that my transmission was about to go, from the last time I went through this. They have yet to raise their ugly head this time around

Importroller wrote:I found out this weekend that the belt wasnt the problem. An actuator or solenoid in the transmission couldnt handle the heat generated and caused it to fail. so with lower boost (3-5lbs) it should be ok on a stock transmission. To me, not really worth it on a a CVT car, I would rather have a manual and be able to boost up to 7-11lbs depending on tuning, and really enjoy the power of the turbo

Pressure solenoid inside the transmission gave out. Overheated, and melted. The stock CVT transmission temps operate around 180-220 degrees. With the turbo, ours got over 260 degrees, and grenaded. This time around we installed temp gauges in the CVT fluid line, after the transmission cooler, and temps stay between 120 and 160 degrees at all times.

Also, the stock Altima Coupes' manual transmission won't handle the torque amounts over 8 psi. It unlocks itself and throws the car into neutral, if it feels this over torque condition.

Post by **3ugene** » Sun Jan 11, 2009 4:14 pm

I must applaud you for experimenting. There HAS GOT to be other people who try and develop a reliable, tested method to boost a CVT. Nissan seems like they want to use it for a long time to come.

Post by **digitalbow** » Sun Jan 11, 2009 8:50 pm

adidas2go wrote:This time, we put in a massive transmission cooler that has been holding the boost fine for 2 months.

What kind and where did you mount it?I'm going to put in an oil cooler and trans cooler but don't have an ideal location since the FMIC is where they would normally be put for air flow.

Post by **adidas2go** » Sun Jan 11, 2009 10:50 pm

Well, If you look at my signature, you'll see the STILLEN front fascia. We mounted the cooler right behind the top grill. Its a B&M transmission cooler.

Post by **xeene** » Mon Jan 12, 2009 3:02 am

your sig is missing blake

Post by **adidas2go** » Tue Jan 13, 2009 3:35 pm

No its not. New NICO setup, your signature only shows on the first post in the thread.

Post by **JIMSALTIMA** » Sun Feb 01, 2009 9:07 pm

I'm wondering if you guys could help me out with a difficult question? how the g35 ,350z,and the altima have the same engine(VQ35DE) .WOULD IT BE POSSIBLE TO PUT A STROKER KIT OF A 350Z ON MY ALTIMA?i would really appricate it if you guys could help me out

Post by **mcheddadi** » Sun Feb 01, 2009 9:25 pm

well its almost the same engine, but you should go ask the guys on my350z.com they know their VQ better than anyone else. they've been stroking them engine blocks for a while

Post by **dangeris** » Mon Feb 02, 2009 5:09 am

mcheddadi wrote:...they've been stroking them engine blocks for a while

Not even gonna go there yo! That was left wide open!

JIMSALTIMA wrote:I'm wondering if you guys could help me out with a difficult question? how the g35 ,350z,and the altima have the same engine(VQ35DE) .WOULD IT BE POSSIBLE TO PUT A STROKER KIT OF A 350Z ON MY ALTIMA?i would really appricate it if you guys could help me out

I was wondering the same thing too. Is it possible?

Post by **Importroller** » Tue Feb 03, 2009 11:32 am

There are a few Built Altima motors out there, just like the Maximas

can the cvt tran. hold up to a turbo?

can the cvt tran. hold up to a turbo?

Re: can the cvt tran. hold up to a turbo? (altered808)

Re: can the cvt tran. hold up to a turbo? (Marisha)

Re: (toetruck)

Re: (Importroller)

Re: (Colton92)

Re: (Importroller)

Re: (adidas2go)

Re: (Importroller)

Re: (adidas2go)

Re: (Importroller)

Re: (digitalbow)

Re: (dangeris)

Re: (marlin29311)

Re: (SuBXeRo)

Re: (Importroller)

Re: (Dexion)

Re: (mcheddadi)

Re: (brokendan)

Re: (Importroller)

Re: (adidas2go)

Re: (adidas2go)

Re: (digitalbow)

Re: (adidas2go)

Re: (xeene)

Re: (adidas2go)

Re: (JIMSALTIMA)

Re: (mcheddadi)

Re: (dangeris)

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