Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   GTM SC installs reviewed (http://www.the370z.com/forced-induction/23849-gtm-sc-installs-reviewed.html)

shumby 11-01-2010 08:58 AM

Quote:

Originally Posted by Q8y_drifter (Post 790736)
I still don't understand how you could blow the trans. The same trans is used in the M56 and QX56. These are much heavier cars that put even more stress on the trans and produce even more torque (413ftlb @ crank for the QX56).

ya i know but it is what it is. I am working with Sam on this too. Waiting to see what the dealer says and then will go from there.

weiboy718 11-01-2010 09:08 AM

Quote:

Originally Posted by 370Zsteve (Post 790735)
You must not be married, Weiboy. How the F you gonna hide $9 large from your wife, lmao

I've been married since I was 20. My kid's are grown up too. What makes you think I'm not?

I was able to buy SC and BBK without her knowing lol. That's well over 12k I hide from her.

weiboy718 11-01-2010 09:11 AM

Quote:

Originally Posted by shumby (Post 790744)
ya i know but it is what it is. I am working with Sam on this too. Waiting to see what the dealer says and then will go from there.

HEy man, log on to aim

Buddy Revell 11-01-2010 09:19 AM

Quote:

Originally Posted by DannyGT (Post 790742)
Quick update on mine too...To echo what Shumby has said, the torque is very significant down low. Additionally, I had some flutter too...But I ran a couple of tests, including bypassing the bypass valve entirely and the flutter is gone, so it doesnt seem to be resonance, just simply the BPV. If thats the worst of it than I'm sure it will be an easy fix. You dont hear it at idle, or under any load above 30-40% throttle...its 100% during cruising. I dont count decel or in between shifts because thats how its suppose to work.

I got the teflon paste to seal up the small oil leak I had on the oil relocation fittings so that should be OK now.

Sorry I havent gotten any pics or video, but I was throwing a huge halloween party and I had no time. Hopefully I can get back to all this during the week and get some good footage for you guys!

Thanks for the info, Danny. What BPV or BOV are you gonna go with?

shumby 11-01-2010 09:19 AM

damn thought i was. stand by

DannyGT 11-01-2010 09:26 AM

Quote:

Originally Posted by Buddy Revell (Post 790766)
Thanks for the info, Danny. What BPV or BOV are you gonna go with?

Not sure, I'm going to a friends shop to see what he has from some of his track cars and test them out. He has a dyno on hand too so I should be able to get some results while I am there. Most likely I'll have that done on Thursday, late afternoon.

fstrnldr 11-01-2010 09:45 AM

Quote:

Originally Posted by shumby (Post 790699)
BUT I BLEW THE TRANNY.

:eek: I think your spending too much time on those rigs!


really sorry to hear that the trans is having problems. Hopefully it at least turns in to a solution for you as well as others with the autos.

shumby 11-01-2010 09:53 AM

^^ ya tell me about it. tray cost more then the SC lol. find out later what the deler has to say. And then wait to see what Sam says he has uphill sleeve for the tranny. But you would know more bout that then me. I know that the tray was going to be a weak point but i did not figure it would fail like this.

christian370z 11-01-2010 10:32 AM

Quote:

Originally Posted by DannyGT (Post 790742)
Quick update on mine too...To echo what Shumby has said, the torque is very significant down low. Additionally, I had some flutter too...But I ran a couple of tests, including bypassing the bypass valve entirely and the flutter is gone, so it doesnt seem to be resonance, just simply the BPV. If thats the worst of it than I'm sure it will be an easy fix. You dont hear it at idle, or under any load above 30-40% throttle...its 100% during cruising. I dont count decel or in between shifts because thats how its suppose to work.

Do the GTM kits come with that plastic Bosch BPV? I used to run that stock in my old Saab 900 and once I got up to 360hp and 20+psi, it would flutter because the internal spring was simply not up to the task of holding back that boost or releasing it effectively.

I would definately move onto another BPV; I have had great experience with Forge personally.

NYBladeZ 11-01-2010 10:38 AM

Damn shumby that sucks but that is part of the inherent risk of being one of the first guys. Look on the bright side, this forum has had way to many manual v. AT threads that have gone no where and now you've put an end to that....m6 wins!

efuseakay 11-01-2010 10:53 AM

Shumby, take your car back and give the guys at Level 10 a call.

fstrnldr 11-01-2010 11:08 AM

Quote:

Originally Posted by shumby (Post 790803)
^^ ya tell me about it. tray cost more then the SC lol. find out later what the deler has to say. And then wait to see what Sam says he has uphill sleeve for the tranny. But you would know more bout that then me. I know that the tray was going to be a weak point but i did not figure it would fail like this.

I think you missed my joke there. As at as he auto trans, that is not eve close to my area of expertise. Sam does have a guy for that, and he is one of the best.

shumby 11-01-2010 11:09 AM

level 10?

shumby 11-01-2010 11:11 AM

Quote:

Originally Posted by fstrnldr (Post 790916)
I think you missed my joke there. As at as he auto trans, that is not eve close to my area of expertise. Sam does have a guy for that, and he is one of the best.


LOL i got your joke i was ignoring it . lol


And Sam needs to start cracking his whip on his tranny guy. (lol Sam has a tranny guy)

G37Sam 11-01-2010 11:21 AM

Too much tranny talk in this thread people let's stay on topic :bowrofl:

Zat_Zuma 11-01-2010 11:31 AM

Sorry to hear that Shumby ....... hope it all works out for you

efuseakay 11-01-2010 11:50 AM

Quote:

Originally Posted by shumby (Post 790918)
level 10?

PM'd you, but I'll share with everyone else as well... :)

Infinity

I know they misspell Infiniti, but these guys are great.

fstrnldr 11-01-2010 12:05 PM

I've heard mixed things about level 10, I have no personal experience with them though. I would do some research in the Supra world.

weiboy718 11-01-2010 12:32 PM

Wow, I just made a few call's for shumby and the tranny out here cost 10,803. That's crazy expensive!

RCZ 11-01-2010 12:34 PM

I told him about OS Giken transmission, hopefully it was released already and is less than 10k.

Buddy Revell 11-01-2010 01:15 PM

Quote:

Originally Posted by DannyGT (Post 790777)
Not sure, I'm going to a friends shop to see what he has from some of his track cars and test them out. He has a dyno on hand too so I should be able to get some results while I am there. Most likely I'll have that done on Thursday, late afternoon.

Sounds good. Good luck, bro.:tup:

Buddy Revell 11-01-2010 01:18 PM

Quote:

Originally Posted by christian370z (Post 790856)
Do the GTM kits come with that plastic Bosch BPV? I used to run that stock in my old Saab 900 and once I got up to 360hp and 20+psi, it would flutter because the internal spring was simply not up to the task of holding back that boost or releasing it effectively.

I would definately move onto another BPV; I have had great experience with Forge personally.

Have you seen the GTM vids that show what the flutter sounds like? Did the flutter on your old Saab sound similar?

weiboy718 11-01-2010 02:00 PM

Can the fluttering be compressor surge?

wishihadnav 11-01-2010 02:08 PM

Quote:

Originally Posted by weiboy718 (Post 791165)
Can the fluttering be compressor surge?

i dont think so..compressor surge would normally result in some sort of stalling/power loss...

Fezzik 11-01-2010 02:29 PM

It's not compressor surge. I'm going to try a new forged bypass valve out. I ordered it last friday so I hope it comes in this week sometime.

To Shumby: when i was looking into my g37 I looked at the price of replacements for the trannys and when I saw the AT price that is what helped me decided on the manual. I really dont think the upper gears are designed to take the high torque of the s/c. Sure these are in the fxs and all but When you are in 5th gear and hammer the gas it drops you down to 3rd or lower. If you cruise in a high gear and just give it a little more gas, you are giving it more torque without the same amount of throttle. My theory. You will probably want to get a built tranny cryo treat it and all. If my 6mt goes out I am definately going to get built tranny.

Also now would be a good time to start calling some junkyards and see if there are any there.

Brazilbro 11-01-2010 03:09 PM

I'm sure for half the price of the new AT you can just convert it to a 6spd.

christian370z 11-01-2010 03:39 PM

Quote:

Originally Posted by Buddy Revell (Post 791062)
Have you seen the GTM vids that show what the flutter sounds like? Did the flutter on your old Saab sound similar?

It wasn't that rapid fluttering at part throttle but it was similar and it basically amounted to the fact that the car was trying to moderate boost at part throttle and the internal spring in the Bosch unit was too weak to deal with that type of pressure. I ran a Forge twin piston BOV for years and it was amazing in every way.

CGMobile370Z 11-01-2010 04:17 PM

Breaking new ground:

Nissan Performance Parts & Upgrades | Nissan Transmission, Torque Converter & Valve Body

517 Trans - Catalog - Infinity

Nissan Infiniti

KaienZ34 11-01-2010 04:24 PM

Nice find thanks

CGMobile370Z 11-01-2010 04:35 PM

I'm really interested in the results you get with the forged bypass valve, I have been waiting on my GTM S/C kit for quite a while and I already bought a forged bypass valve. To tell you the truth that fluttering sound will drive me insane, it makes me have second thoughts on the whole deal. This is the bypass valve I bought:

Forge Motorsport | Alloy Fabrication

RCZ 11-01-2010 04:38 PM

Doesn't the Stillen SC use the same Bosch BPV without noise?

fstrnldr 11-01-2010 05:04 PM

The Stillen car at the open house fluttered really bad. Not sure if it was different than he production kits.

DannyGT 11-01-2010 05:19 PM

Quote:

Originally Posted by fstrnldr (Post 791591)
The Stillen car at the open house fluttered really bad. Not sure if it was different than he production kits.

Thats interesting...

RCZ,

I think we do use the same BPV. Whats different is the amount of more power this kit makes compared to Stillen on the low end. Its definitly in need of a stronger valve.

Other than that the little I have pushed it during break in, is fantastic!

RCZ 11-01-2010 05:47 PM

yeah??? is that why it flutters off boost Danny? because it makes so much more power??

You guys must be running mad vacuum, dawg. :rolleyes:

Q8y_drifter 11-01-2010 06:02 PM

Can the haters and fanboi's please take this **** elsewhere? I'm tired of having to weed through this crap just to find a couple useful posts.

DannyGT 11-01-2010 06:03 PM

Quote:

Originally Posted by RCZ (Post 791638)
yeah??? is that why it flutters off boost Danny? because it makes so much more power??

You guys must be running mad vacuum, dawg. :rolleyes:

It's true. My vacuum is greater than yours...GTM = Dyson, Stillen = Dirt Devil.

But seriously, if you had to take a guess, by closing up the valve, how much would your charger pressurize the system too, at say, idle...?

wishihadnav 11-01-2010 07:05 PM

damn he said dirt devil..lol.

Fezzik 11-01-2010 07:06 PM

Quote:

Originally Posted by fstrnldr (Post 791591)
The Stillen car at the open house fluttered really bad. Not sure if it was different than he production kits.

I didn't know this. Intresting

fstrnldr 11-01-2010 09:20 PM

Now that i have decent internet at home again ill see if i can find the vid and upload it.

KaienZ34 11-01-2010 10:01 PM

YouTube - GTM SUPERCHARGER STAGE 1 KIT 500HP-DELIVERY TEST DRIVE


All times are GMT -5. The time now is 07:03 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2