STILLEN 370Z Supercharger System - Announcement!!!

Chris@FsP · 09-29-2010, 05:35 PM

Quote:

Originally Posted by Osiris

Well here it is...45min with a custom tuner and it was done. This was done on a Mustang dyno so the numbers will be lower than usual. Unfortunately i don't have a pre-kit dyno to compare. Since getting the tune today, the car has developed what seems to be a tip-in knock; so i will be working with my dealership/stillen to handle that. Even with the knock, the car accelerates great. Anyways, here's the numbers, i'll let you experts pick it apart:

14:1 afr at 4k rpm?

Chris_1 · 09-29-2010, 05:55 PM

Quote:

Originally Posted by Chris@FsP

14:1 afr at 4k rpm?

I am not expert, but that is probably one of these safest tunes Ive ever seen and it still made pretty decent power. Maybe I am reading this all backwards, but seems you are running a richer setup then the factory or am i Crazy?

Staples · 09-30-2010, 12:53 AM

Quote:

Originally Posted by Chris@FsP

14:1 afr at 4k rpm?

He didn't go full throttle until about 4200rpms that's why the A/F dipped so low. You want to be at 14:1 when cruising, but it should immediately drop when giving it open throttle 50-100%. Optimal A/F on a supercharger is no more then 11.5:1 a/f, but you could always add a little extra fuel as a safety factor (which is what they did). On a DynoJet that would put down around 383/292 (just to give an idea comparing Stillen's dyno since it reads high to begin with). There's still power to be made by taking fuel out from 4600rpms all way to about 7400rpms, but the knocking needs to be addressed first.

Seb@SZ · 09-29-2010, 07:44 PM

Quote:

Originally Posted by Osiris

Well here it is...45min with a custom tuner and it was done. This was done on a Mustang dyno so the numbers will be lower than usual. Unfortunately i don't have a pre-kit dyno to compare. Since getting the tune today, the car has developed what seems to be a tip-in knock; so i will be working with my dealership/stillen to handle that. Even with the knock, the car accelerates great. Anyways, here's the numbers, i'll let you experts pick it apart.

It sounds like you had it custom tuned. If it's knocking then you should take it back to the tuner to fix this.

Osiris · 09-29-2010, 08:48 PM

Quote:

Originally Posted by Seb@SZ

It sounds like you had it custom tuned. If it's knocking then you should take it back to the tuner to fix this.

update: the drive back from the tuner was a 3 hour drive, per his suggestion, let the car sit for 2 hours to cool off. Afterwards, drove it around again and the knocking was gone. In addition, when the knocking was occurring, the idle sat at 1500 instead of 1000...after i let it cool, it was back to 1000. So he believes the car was heat soaked during my 3 hour drive back and the ecu switched into an alternate map due to the heat.

So, will be checking with Uprev and Stillen to try and remedy. Otherwise, the car drives great.

DannyGT · 09-29-2010, 04:19 PM

I'd love to see what a stock 370z does on that dyno.

m4a1mustang · 09-29-2010, 04:20 PM

Quote:

Originally Posted by DannyGT

I'd love to see what a stock 370z does on that dyno.

My guess would be ~255whp

RCZ · 09-30-2010, 09:57 PM

Quote:

Originally Posted by DannyGT

I'd love to see what a stock 370z does on that dyno.

I dynoed my car there bone stock, made like 250something.

I dynoed my car there with full bolt ons and made 290something.

I dynoed my car there with the supercharger and made 380something.

I then took my car to a local dynojet and made 432hp SAE (455hp STD, STD is what both Stillen and GTM use when they publish dyno numbers)

HP Logic · 10-01-2010, 12:30 AM

....as stated...stock cars make 240-250whp on this dyno...340 is a 90-100whp gain over stock....and on par for the setup IMHO.

...the tip-in knock as discussed has been observed even on stock untuned cars ....in this case it seemed to be a bit exaggerated....I theorize there are a few modes that the ECU reverts to in the event that overheating occurs..and with the combination of the SC kit/florida heat/extended idle/slow cruise/ A/C ...etc its not impossible for these already tempurature sensitive cars to reach the threshold.....without access to these possible alternate schedules its difficult to assume they are at a set point/value...I have seen this behavior exibited using both Osiris and Cobb to tune with and can only hypothesize on the culprit. One thing I CAN say is this is not the first kit I have seen and am still pleased by the results I am achieving with the Stillen kit using UPREV software. I have no complaints thus far and will happily continue tuning these kits as they come.

-Jack

Z eliminator · 10-01-2010, 07:24 AM

I fully agree with RCZ rwhp #'s how he has converted the SAE rwhp to STD rwhp.
He gave the true RWHP in SAE.
That's the one and only true # that counts.
With my bolt ons i made 311 rwhp and 320 std Actal hp. Base line was 260.4. (dyno Jet )
Mine is also a 7 AT.

Z

" Shumby, RCZ and I agree on something "

Nitex · 10-01-2010, 09:27 AM

Phim, i made 299 so basically 300. I have most bolt ons already installed for this number. I was hoping for 310+ after UD pulley and tune. I also stated that it is not correct to compare dynos this way. So i agree with your statement.

However, the mustang I'm running on does not read as high as any dynojet in this area. I don't doubt it does read high for a mustang, but not dynojet levels. Also remember I'm at sea level here in the Seattle area. So once FI, my numbers should be fairly high in comparison, due to lower ambient heat, and elevation levels.

Nitex · 10-01-2010, 09:34 AM

Quote:

Originally Posted by Z eliminator

I fully agree with RCZ rwhp #'s how he has converted the SAE rwhp to STD rwhp.
He gave the true RWHP in SAE.
That's the one and only true # that counts.
With my bolt ons i made 311 rwhp and 320 std Actal hp. Base line was 260.4. (dyno Jet )
Mine is also a 7 AT.

Z

" Shumby, RCZ and I agree on something "

So much for that

RCZ · 10-01-2010, 09:27 AM

Z eliminator, all dynos can give you both sae and std. The difference is that some dynos just plain read lower.

There is no "actual" hp. You dynoed your baseline and bolt-ons on a dynojet, I did it on a mustang dyno.

RCZ · 10-01-2010, 01:20 PM

Haha, Its funny because I know I'm right and I know he doesnt know how this whole thing works if he thinks theres a "true" hp.

There's so much stuff that gets thrown around this thread/site that is inaccurate and people say it with such authority. There are maybe 5-10 people in here who actually know what they are talking about.

weiboy718 · 10-01-2010, 02:41 PM

Quote:

Originally Posted by RCZ

Haha, Its funny because I know I'm right and I know he doesnt know how this whole thing works if he thinks theres a "true" hp.

There's so much stuff that gets thrown around this thread/site that is inaccurate and people say it with such authority. There are maybe 5-10 people in here who actually know what they are talking about.

Smartass! Hahaha

09-29-2010, 04:19 PM	#6 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 281	I'd love to see what a stock 370z does on that dyno. __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

10-01-2010, 12:30 AM	#9 (permalink)
HP Logic The370Z.com Sponsor Join Date: Mar 2009 Location: Wellington, FL Posts: 51 Drives: 1993 mazda rx7 5spd Rep Power: 219	....as stated...stock cars make 240-250whp on this dyno...340 is a 90-100whp gain over stock....and on par for the setup IMHO. ...the tip-in knock as discussed has been observed even on stock untuned cars ....in this case it seemed to be a bit exaggerated....I theorize there are a few modes that the ECU reverts to in the event that overheating occurs..and with the combination of the SC kit/florida heat/extended idle/slow cruise/ A/C ...etc its not impossible for these already tempurature sensitive cars to reach the threshold.....without access to these possible alternate schedules its difficult to assume they are at a set point/value...I have seen this behavior exibited using both Osiris and Cobb to tune with and can only hypothesize on the culprit. One thing I CAN say is this is not the first kit I have seen and am still pleased by the results I am achieving with the Stillen kit using UPREV software. I have no complaints thus far and will happily continue tuning these kits as they come. -Jack __________________ http://i15.photobucket.com/albums/a3..._Sig_02-01.jpg Jack Cecil HorsepowerLogic.com

10-01-2010, 07:24 AM	#10 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,660 Drives: 370 Z 7AT Sports Rep Power: 20	I fully agree with RCZ rwhp #'s how he has converted the SAE rwhp to STD rwhp. He gave the true RWHP in SAE. That's the one and only true # that counts. With my bolt ons i made 311 rwhp and 320 std Actal hp. Base line was 260.4. (dyno Jet ) Mine is also a 7 AT. Z " Shumby, RCZ and I agree on something " __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015. Last edited by Z eliminator; 10-01-2010 at 07:27 AM.

10-01-2010, 09:27 AM	#11 (permalink)
Nitex Track Member Join Date: Jan 2010 Location: Seattle Posts: 848 Drives: '13 GTI Stage 2 UNI Rep Power: 18	Phim, i made 299 so basically 300. I have most bolt ons already installed for this number. I was hoping for 310+ after UD pulley and tune. I also stated that it is not correct to compare dynos this way. So i agree with your statement. However, the mustang I'm running on does not read as high as any dynojet in this area. I don't doubt it does read high for a mustang, but not dynojet levels. Also remember I'm at sea level here in the Seattle area. So once FI, my numbers should be fairly high in comparison, due to lower ambient heat, and elevation levels. __________________ 2013 Drivers ED GTI \| Stage 2 Unitronic

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10-01-2010, 09:27 AM	#13 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1120	Z eliminator, all dynos can give you both sae and std. The difference is that some dynos just plain read lower. There is no "actual" hp. You dynoed your baseline and bolt-ons on a dynojet, I did it on a mustang dyno.

10-01-2010, 01:20 PM	#14 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1120	Haha, Its funny because I know I'm right and I know he doesnt know how this whole thing works if he thinks theres a "true" hp. There's so much stuff that gets thrown around this thread/site that is inaccurate and people say it with such authority. There are maybe 5-10 people in here who actually know what they are talking about.