7AT going supercharged

triadz · 02-07-2012, 11:38 AM

Hey all, I have a 2009 7AT with roughly 50k miles and a 100k mile factory warranty. I really want to get some more power out of the z and I think supercharged is the best option. I really like the stillen kit because It retains the factory warranty if the dealership installs it and I have had good experiences in the past with stillen. My z is my daily, but I only plan on running the kit with low boost for efficiency. The real question here is will the supercharger and auto tranny be ok together with low boost I really want to have at or close to 400whp on a dyno jet.

370Z JT · 02-07-2012, 11:44 AM

Find a reputable installer and Uprev tuner and you will be ok.

triadz · 02-07-2012, 12:10 PM

That's what I was thinking thanks for the input

vividracing · 02-07-2012, 12:52 PM

You may want to PM shumby. He's gone through exactly what you're looking to do. The 7AT has had some failures at around 400whp.

XwChriswX · 02-07-2012, 12:59 PM

1. The Stillen SC for the 370 has had a rough history on here, search through the FI section and you'll find the threads for it.

2. If you're looking for 400whp, your better off getting the GTM Stage 1 kit as the Stillen kit never reached that point if I remember correctly.

3. With a very simple, slight modification to oil pressures in the AT, it holds the power just fine. Confirmed for both SC and TT applications up to 500hp and then a little more. A TT 7AT with the right tranny mods is dangerous.

triadz · 02-07-2012, 01:07 PM

Ok thanks I'll take a look @ the gtm kit

XwChriswX · 02-07-2012, 01:14 PM

GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE

Jamaica · 02-07-2012, 02:37 PM

You can get easy over 400whp on a sc auto and will be good. Tuning is the major key. Still haven't seen an auto TT go over 450whp. Sc yes

W.O.W. 370Z · 02-07-2012, 02:45 PM

Everything is relative. Most of the 500 whp were/are on 10-11 PSI.

<--- 440WHP 7.5 PSI 7AT on a mustang dyno.

Never dynoed on a dynojet. Mustang dyno better for real world conditions. Dynojet for bragging rights.

Interested to see what it would be on a dynojet and with 10 PSI.

EVOHUNTER · 02-07-2012, 02:51 PM

Quote:

Originally Posted by XwChriswX

1. The Stillen SC for the 370 has had a rough history on here, search through the FI section and you'll find the threads for it.

2. If you're looking for 400whp, your better off getting the GTM Stage 1 kit as the Stillen kit never reached that point if I remember correctly.

3. With a very simple, slight modification to oil pressures in the AT, it holds the power just fine. Confirmed for both SC and TT applications up to 500hp and then a little more. A TT 7AT with the right tranny mods is dangerous.

i made 434whp with the stock pulley... and 462whp with smaller pulley.
If your talking about the stillen tune not reaching 400whp? if so, your right i was 291whp before charger, 331whp with stillen tune, the car seemed slower with the supercharger adn the stillen tune.

efuseakay · 02-09-2012, 11:23 AM

Either the Stillen or GTM would be ok. Stillen pretty much *needs* a custom tune. You definitely need engine and transmission coolers.

ANMVQ · 02-13-2012, 05:27 PM

I have a 7spd auto and AWD and made 412 WHP on mustang but only 365 on a dyno dynamics/( REAL HEATBREAKER) ,just make sure you get the oil and tranny coolers

wstar · 02-13-2012, 05:45 PM

TBH, all of the dynos can probably be "tuned" to read high or low based on correction factors and whatnot, and all of them are probably capable of reliable, accurate readings as well. Dynojet just gets a bad rep because it seems to be the favorite dyno among shops that cater to forums horsepower braggers and add correction factors accordingly

02-07-2012, 11:38 AM	#1 (permalink)
triadz Base Member Join Date: Dec 2010 Location: north carolina Posts: 112 Drives: 09 370z mb 7A Rep Power: 15	7AT going supercharged Hey all, I have a 2009 7AT with roughly 50k miles and a 100k mile factory warranty. I really want to get some more power out of the z and I think supercharged is the best option. I really like the stillen kit because It retains the factory warranty if the dealership installs it and I have had good experiences in the past with stillen. My z is my daily, but I only plan on running the kit with low boost for efficiency. The real question here is will the supercharger and auto tranny be ok together with low boost I really want to have at or close to 400whp on a dyno jet. __________________ H and R springs, top speed cat back, motordyne art pipes, stillen gen 3.

02-07-2012, 11:44 AM	#2 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	Find a reputable installer and Uprev tuner and you will be ok. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

02-07-2012, 12:10 PM	#3 (permalink)
triadz Base Member Join Date: Dec 2010 Location: north carolina Posts: 112 Drives: 09 370z mb 7A Rep Power: 15	That's what I was thinking thanks for the input __________________ H and R springs, top speed cat back, motordyne art pipes, stillen gen 3.

02-07-2012, 12:52 PM	#4 (permalink)
vividracing The370Z.com Sponsor Join Date: Jun 2009 Location: Gilbert, AZ Age: 38 Posts: 7,306 Drives: 350Z,370Z,GTR Rep Power: 39	You may want to PM shumby. He's gone through exactly what you're looking to do. The 7AT has had some failures at around 400whp. __________________ Rocky @ Vivid ♦ 480.966.3040 x236 ♦ Rocky@vividracing.com Email, PM, or call me directly for aggressive The370Z.com member pricing!!!

02-07-2012, 12:59 PM	#5 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	1. The Stillen SC for the 370 has had a rough history on here, search through the FI section and you'll find the threads for it. 2. If you're looking for 400whp, your better off getting the GTM Stage 1 kit as the Stillen kit never reached that point if I remember correctly. 3. With a very simple, slight modification to oil pressures in the AT, it holds the power just fine. Confirmed for both SC and TT applications up to 500hp and then a little more. A TT 7AT with the right tranny mods is dangerous. __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

02-07-2012, 01:07 PM	#6 (permalink)
triadz Base Member Join Date: Dec 2010 Location: north carolina Posts: 112 Drives: 09 370z mb 7A Rep Power: 15	Ok thanks I'll take a look @ the gtm kit __________________ H and R springs, top speed cat back, motordyne art pipes, stillen gen 3.

02-07-2012, 01:14 PM	#7 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

02-07-2012, 02:37 PM	#8 (permalink)
Jamaica A True Z Fanatic Join Date: Mar 2010 Location: SoCal Posts: 15,362 Drives: Under boost Rep Power: 73	You can get easy over 400whp on a sc auto and will be good. Tuning is the major key. Still haven't seen an auto TT go over 450whp. Sc yes

02-07-2012, 02:45 PM	#9 (permalink)
W.O.W. 370Z A True Z Fanatic Join Date: Mar 2010 Location: Miami Posts: 1,757 Drives: 2010 Touring Sport Z Rep Power: 19	Everything is relative. Most of the 500 whp were/are on 10-11 PSI. <--- 440WHP 7.5 PSI 7AT on a mustang dyno. Never dynoed on a dynojet. Mustang dyno better for real world conditions. Dynojet for bragging rights. Interested to see what it would be on a dynojet and with 10 PSI. Last edited by W.O.W. 370Z; 02-07-2012 at 02:47 PM.

02-09-2012, 11:23 AM	#11 (permalink)
efuseakay Enthusiast Member Join Date: Mar 2010 Location: The DAYNGA ZONE! Posts: 404 Drives: 2010 G37xS Sedan Rep Power: 15	Either the Stillen or GTM would be ok. Stillen pretty much needs a custom tune. You definitely need engine and transmission coolers.

02-13-2012, 05:27 PM	#12 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	I have a 7spd auto and AWD and made 412 WHP on mustang but only 365 on a dyno dynamics/( REAL HEATBREAKER) ,just make sure you get the oil and tranny coolers __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

02-13-2012, 05:45 PM	#13 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	TBH, all of the dynos can probably be "tuned" to read high or low based on correction factors and whatnot, and all of them are probably capable of reliable, accurate readings as well. Dynojet just gets a bad rep because it seems to be the favorite dyno among shops that cater to forums horsepower braggers and add correction factors accordingly __________________ 7AT Track Car! Journal thread / Car setup details

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