Stillen Headers on 370z

RCZ · 03-11-2009, 06:40 PM

I like that you are trying to call bs on some of these vendors that are posting outrageous claims. I think you have every right and that you should definitely test things out and that will help all of us. I will be testing JWT intakes in the coming weeks...but I dont want to have to go all the way to the dyno (hour away) to just test intakes, so I'm also waiting on GTM to release their super duper 24whp exhaust system to test along with it. I need to get those two and the oil cooler before I can go test again... Also waiting on your test of the stillen longtube intakes...

Funky370z · 03-11-2009, 07:53 PM

guys i am sorry my father was rushed into the hospital on monday for emergency surgery and It has just been a whirl wind. I will post some graphs tomorrow when i get them pulled off my dyno computer. I have not forgotten. I will say I lost a lot of power through the mid range. I need to talk to someone at stillen about this.

Ryan

SoCal 370Z · 03-11-2009, 08:19 PM

Quote:

Originally Posted by RelentlessRY

guys i am sorry my father was rushed into the hospital on monday for emergency surgery and It has just been a whirl wind.

Ryan,

Sorry to hear about your father. Is he doing well?

Funky370z · 03-11-2009, 08:21 PM

Quote:

Originally Posted by SoCal 370Z

Ryan,

Sorry to hear about your father. Is he doing well?

Yea he is better, has been a rough few months. We just found out he has cancer and now this constant battle with his back(2 surgeries this month) is stressful on top of working almost 80-100 hours a week.

SoCal 370Z · 03-11-2009, 08:26 PM

Quote:

Originally Posted by RelentlessRY

Yea he is better, has been a rough few months. We just found out he has cancer and now this constant battle with his back(2 surgeries this month) is stressful on top of working almost 80-100 hours a week.

Family is definitely more important. I've undergone similar with my father.

semtex · 03-12-2009, 07:54 AM

Quote:

Originally Posted by RelentlessRY

Yea he is better, has been a rough few months. We just found out he has cancer and now this constant battle with his back(2 surgeries this month) is stressful on top of working almost 80-100 hours a week.

I'm sorry sorry to hear this. I recently lost a friend to cancer. It's a brutal thing. Best wishes to you and your family.

wstar · 03-16-2009, 12:21 AM

Sorry to hear about your father, cancer sucks.

By the way, what's the deal on gaskets for the headers? Does Stillen ship new gaskets for either side of them (or are the old ones re-usable at least on the engine side on a low-mileage car - or do I need to pick up some gaskets myself from a local parts place?). I guess I'll be calling them to ask about this tomorrow anyways.

I've got a ceramic-coated set due to arrive on Tuesday, and Berk HFCs sitting in my garage. I'm hoping to install both next weekend while I have access to a lift (I figure I may as well deal with the PITA cat removal just once) as my first major bolt-ons, and then deal with cat-back and intake at home without a lift later (still haven't decided on an intake anyways, although I'm leaning towards Stillen's G3 one once it becomes available).

Once all of that's in place, then I need to sort out getting the ECU tuned, either mail-order or maybe I can find someone who's good with a dyno here in Houston, we'll see.

RCZ · 03-11-2009, 09:59 PM

Im sorry to hear that, hope everything works out well man. Priorities, go take care of him.

Black kNight · 03-12-2009, 12:18 AM

I hope he will be better

Funky370z · 03-18-2009, 08:14 PM

upev is a way to tune a factory ecu. They are eagerly working through the 370 computers. Rich and Jarad over there are great guys. I would get all your bolt ons finished then do a tune, that is my plan.... I am still wondering how to tune the vvel i understand the concept as I been through the Nissan training on it, but how to maximize it with a not adjusting exhaust cam.

On a side note talked with Josh from stillen a bit today and i think the reason we are losing power in the midrange is due to the increased flow of the headers but the bottle necks in the factory y-pipe. I can not say enough how great there customer service is/has/ and no doubt will be.

semtex · 03-19-2009, 07:39 AM

Quote:

Originally Posted by RelentlessRY

upev is a way to tune a factory ecu. They are eagerly working through the 370 computers. Rich and Jarad over there are great guys. I would get all your bolt ons finished then do a tune, that is my plan.... I am still wondering how to tune the vvel i understand the concept as I been through the Nissan training on it, but how to maximize it with a not adjusting exhaust cam.

On a side note talked with Josh from stillen a bit today and i think the reason we are losing power in the midrange is due to the increased flow of the headers but the bottle necks in the factory y-pipe. I can not say enough how great there customer service is/has/ and no doubt will be.

This is exactly what I've been planning to do. Get my bolt-ons done, then use UpRev to do a tune. Re. losing power in the midrange, if it's due to the factory y-pipe, then I can only wonder what results I'd get if I hooked these babies up, given that I've already got the Stillen exhaust and Berk HFCs installed. Not sure I want to be the guinea pig on headers tho.

Funky370z · 03-18-2009, 08:18 PM

LOL Uprev is the company, but the tuner software is called Osiris you data log with there programed called Cipher. Not as hard as i make it out to be. The first batch of370z roms are getting close to done.

BPAuto · 03-18-2009, 08:25 PM

Good post

-Hunter

RCZ · 03-19-2009, 04:29 PM

Why not?

semtex · 03-19-2009, 06:18 PM

Quote:

Originally Posted by RCZ

Why not?

I don't think it's my responsibility to do R&D for Stillen. Let me put it this way, if Stillen puts a product out there and says 'we tested this and got xyz gains out of it', then I'm happy to take the plunge on good faith and order it, even if there aren't any 'independent' dyno figures out yet. Indeed, that's basically what I've done with their exhaust and their G3 intake. But if I'm not mistaken, Stillen hasn't tested their own headers on a 370Z yet. They have them listed for sale for the 370Z, yet when I click on the icon to look at the dyno chart, it's for a G37. That alone makes me raise an eyebrow. Now add to this we've got RelentlessRY telling us that he tested them and lost a bunch in the mid-range. That's red flag #2 in my mind. He says he talked to Josh and they think the reason this is happening is that it's bottle-necking at the factory Y-pipe. Okay, sounds reasonable. So Stillen should test that theory and bolt it up to their cat-back exhaust as part of their R&D. They're the manufacturer with an R&D budget, after all. I'm just a lowly consumer.

03-11-2009, 06:40 PM	#1 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	I like that you are trying to call bs on some of these vendors that are posting outrageous claims. I think you have every right and that you should definitely test things out and that will help all of us. I will be testing JWT intakes in the coming weeks...but I dont want to have to go all the way to the dyno (hour away) to just test intakes, so I'm also waiting on GTM to release their super duper 24whp exhaust system to test along with it. I need to get those two and the oil cooler before I can go test again... Also waiting on your test of the stillen longtube intakes... Last edited by RCZ; 03-11-2009 at 06:44 PM.

03-18-2009, 08:25 PM	#13 (permalink)
BPAuto The370Z.com Sponsor Join Date: Jan 2009 Location: Los Angeles Downtown Posts: 60 Drives: AP1 S2000 Rep Power: 17	Good post -Hunter __________________ The Real JDM Blog Bulletproof Automotive

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03-11-2009, 07:53 PM	#2 (permalink)
Funky370z Base Member Join Date: Feb 2009 Location: florida Posts: 65 Drives: 370z Touring Sport Rep Power: 257	guys i am sorry my father was rushed into the hospital on monday for emergency surgery and It has just been a whirl wind. I will post some graphs tomorrow when i get them pulled off my dyno computer. I have not forgotten. I will say I lost a lot of power through the mid range. I need to talk to someone at stillen about this. Ryan

03-16-2009, 12:21 AM	#7 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	Sorry to hear about your father, cancer sucks. By the way, what's the deal on gaskets for the headers? Does Stillen ship new gaskets for either side of them (or are the old ones re-usable at least on the engine side on a low-mileage car - or do I need to pick up some gaskets myself from a local parts place?). I guess I'll be calling them to ask about this tomorrow anyways. I've got a ceramic-coated set due to arrive on Tuesday, and Berk HFCs sitting in my garage. I'm hoping to install both next weekend while I have access to a lift (I figure I may as well deal with the PITA cat removal just once) as my first major bolt-ons, and then deal with cat-back and intake at home without a lift later (still haven't decided on an intake anyways, although I'm leaning towards Stillen's G3 one once it becomes available). Once all of that's in place, then I need to sort out getting the ECU tuned, either mail-order or maybe I can find someone who's good with a dyno here in Houston, we'll see.

03-11-2009, 09:59 PM	#8 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Im sorry to hear that, hope everything works out well man. Priorities, go take care of him.

03-12-2009, 12:18 AM	#9 (permalink)
Black kNight Base Member Join Date: Dec 2008 Location: Oman Posts: 239 Drives: Model 2003 MB C-180k Rep Power: 273	I hope he will be better

03-18-2009, 08:14 PM	#10 (permalink)
Funky370z Base Member Join Date: Feb 2009 Location: florida Posts: 65 Drives: 370z Touring Sport Rep Power: 257	upev is a way to tune a factory ecu. They are eagerly working through the 370 computers. Rich and Jarad over there are great guys. I would get all your bolt ons finished then do a tune, that is my plan.... I am still wondering how to tune the vvel i understand the concept as I been through the Nissan training on it, but how to maximize it with a not adjusting exhaust cam. On a side note talked with Josh from stillen a bit today and i think the reason we are losing power in the midrange is due to the increased flow of the headers but the bottle necks in the factory y-pipe. I can not say enough how great there customer service is/has/ and no doubt will be.

03-18-2009, 08:18 PM	#12 (permalink)
Funky370z Base Member Join Date: Feb 2009 Location: florida Posts: 65 Drives: 370z Touring Sport Rep Power: 257	LOL Uprev is the company, but the tuner software is called Osiris you data log with there programed called Cipher. Not as hard as i make it out to be. The first batch of370z roms are getting close to done.

03-19-2009, 04:29 PM	#14 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Why not?