Preparation for the STILLEN supercharger

roplusbee · 03-10-2010, 09:16 AM

Those are all good thoughts/questions, but I doubt we will really have an answer until enought people take that plunge. I know I will at a point, but I am thinking that it may be a prerequisite to build for "safety" sake. As far as my budget goes, I would have to safe some more pennies to make that happen. This discussion has taken a turn for the better and hopefully those questions will be answered in time.

1slow370 · 03-10-2010, 09:58 AM

honsetly the kit is going to be about damn near maxed when you buy it from either company. a general rule of thumb for car with a drivetrain as sturdy as ours is to limit it by the psi no the horsepower. an 8 psi turbo kit and an 8psi supercharger kit place equal strain on the block. superchargers make less power because it requires hp to turn the supercharger either way 8psi of air with the same ignition advance is going to generate the same cylinder pressures. right now the highest i would take the stock motor is in the 7-10 range depending on how ballsy you are.

RCZ · 03-10-2010, 10:36 AM

Quote:

Originally Posted by 1slow370

honsetly the kit is going to be about damn near maxed when you buy it from either company. a general rule of thumb for car with a drivetrain as sturdy as ours is to limit it by the psi no the horsepower. an 8 psi turbo kit and an 8psi supercharger kit place equal strain on the block. superchargers make less power because it requires hp to turn the supercharger either way 8psi of air with the same ignition advance is going to generate the same cylinder pressures. right now the highest i would take the stock motor is in the 7-10 range depending on how ballsy you are.

I think we could get away with 10 psi on a good 93oct tune. As far as being maxed out, I don't think the Stillen kit is near maxed out. As I understand it, they have enough room on that compressor to go well beyond the limit of our internals.

Anyone know what the max psi is for that blower?

LiquidZ · 03-10-2010, 10:39 AM

Quote:

Originally Posted by RCZ

I think we could get away with 10 psi on a good 93oct tune. As far as being maxed out, I don't think the Stillen kit is near maxed out. As I understand it, they have enough room on that compressor to go well beyond the limit of our internals.

Anyone know what the max psi is for that blower?

22 psi for Si trim.

370Zsteve · 03-10-2010, 11:04 AM

Quote:

Originally Posted by RCZ

I think we could get away with 10 psi on a good 93oct tune. As far as being maxed out, I don't think the Stillen kit is near maxed out. As I understand it, they have enough room on that compressor to go well beyond the limit of our internals.

Anyone know what the max psi is for that blower?

Woof, 10 psi, I can only imagine the excitement inside the cabin at full throttle

Kyle@STILLEN · 03-10-2010, 11:53 AM

Figuring out the proper efficiency "range" of a Vortech supercharger takes a few things:

1) Volume of air you're trying to move
2) RPM that you're spinning the supercharger
3) Size of the engine you're trying to feed.

Basically, there might be a "sweet spot" of efficiency on the compressor map for the 370Z but it's going to be very different for an engine like a Charger SRT-8 however you can still use the same blower for each application.

One of the great things about the Vortech V3 supercharger is that it is a very efficient blower at over 70% efficiency.

1slow370 · 03-11-2010, 03:42 AM

Quote:

Originally Posted by RCZ

I think we could get away with 10 psi on a good 93oct tune. As far as being maxed out, I don't think the Stillen kit is near maxed out. As I understand it, they have enough room on that compressor to go well beyond the limit of our internals.

Anyone know what the max psi is for that blower?

I mean that it is maxed out in the sense that after purchase of said kit it is going to cost you like another 6grand to safely up the power. hell if you don't change your clutchand flywheel just buying one of those kits is already over the max the car will take. I like to work in terms of the package as a whole. I think 10 psi would be doable as a race tune but i shure as hell would pulley down to no more than 6-8 for regular use. 10 psi is def. meth injection territory to me. hell i'd think of putting meth on an n/a car just so i could run a nitro booster in it. i'd try to find the most oxygenated shyt i could find.

G35s-Q8 · 03-11-2010, 05:40 AM

So, i have some questions here for Kyle&Josh@Stillen, are you going to send out the S/C kits with uni-chip or control box just like you did the the old 350z S/C?
Or are you planning to use Osiris UpRev reflash and tune?
Do you thing the UpRev is better than uni-chip for tuning?
And what made you go with that route for the tuning? (uni-chip vs uprev tuning).

RCZ · 03-10-2010, 10:44 AM

^ well then, we can blow up our motor twice over with it then lol.

RCZ · 03-10-2010, 11:21 AM

Stillen: Question.

Are the tunes for 91oct? Are we going to have an option for 93oct for those of us who get decent gasoline?

Zsteve · 03-10-2010, 11:31 AM

Quote:

Originally Posted by RCZ

Stillen: Question.

Are the tunes for 91oct? Are we going to have an option for 93oct for those of us who get decent gasoline?

I miss the 93 Oct, I can really feel some loss of power coming here to TX, with the high alt and going from 93 to 91 oct.

Kyle@STILLEN · 03-10-2010, 12:09 PM

Quote:

Originally Posted by RCZ

Stillen: Question.

Are the tunes for 91oct? Are we going to have an option for 93oct for those of us who get decent gasoline?

I don't have an exact answer for that yet but it has definitely been a topic around here.

Our biggest issue is that there is nowhere for us to get 93 octane fuel. We were talking yesterday about possible locations and the closest place we can think of is Oklahoma...We're currently looking into it though.

Kyle@STILLEN · 03-10-2010, 12:24 PM

I forgot to add this in my last post.

This chart shows some different forced induction systems on the VQ35 engines. You can see how the STILLEN roots blower was the best down low, but at high RPM was lacking.

Buddy Revell · 03-10-2010, 01:33 PM

Quote:

Originally Posted by Kyle@STILLEN

I forgot to add this in my last post.

This chart shows some different forced induction systems on the VQ35 engines. You can see how the STILLEN roots blower was the best down low, but at high RPM was lacking.

Definitely good to see how the entire hp curves compare and not just the peak numbers. It'll be very useful to compare the final dynos from the two kits when they are eventually available. Thanks for the info.

RCZ · 03-10-2010, 02:30 PM

Quote:

Originally Posted by Kyle@STILLEN

I don't have an exact answer for that yet but it has definitely been a topic around here.

Our biggest issue is that there is nowhere for us to get 93 octane fuel. We were talking yesterday about possible locations and the closest place we can think of is Oklahoma...We're currently looking into it though.

Cool, are there any plans for a Stillen branded meth/water injection kit? Maybe you guys could talk to Aquamist, SMC, Coolingmist or Snow Performance for some support. I think it might be nice insurance and a little extra power for those who are planning on pushing the limits a tad.

03-10-2010, 09:16 AM	#1 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 24	Those are all good thoughts/questions, but I doubt we will really have an answer until enought people take that plunge. I know I will at a point, but I am thinking that it may be a prerequisite to build for "safety" sake. As far as my budget goes, I would have to safe some more pennies to make that happen. This discussion has taken a turn for the better and hopefully those questions will be answered in time. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

03-10-2010, 09:58 AM	#2 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	honsetly the kit is going to be about damn near maxed when you buy it from either company. a general rule of thumb for car with a drivetrain as sturdy as ours is to limit it by the psi no the horsepower. an 8 psi turbo kit and an 8psi supercharger kit place equal strain on the block. superchargers make less power because it requires hp to turn the supercharger either way 8psi of air with the same ignition advance is going to generate the same cylinder pressures. right now the highest i would take the stock motor is in the 7-10 range depending on how ballsy you are. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

03-10-2010, 11:53 AM	#6 (permalink)
Kyle@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Newport Beach Posts: 626 Drives: Toyota Tundra Rep Power: 308	Figuring out the proper efficiency "range" of a Vortech supercharger takes a few things: 1) Volume of air you're trying to move 2) RPM that you're spinning the supercharger 3) Size of the engine you're trying to feed. Basically, there might be a "sweet spot" of efficiency on the compressor map for the 370Z but it's going to be very different for an engine like a Charger SRT-8 however you can still use the same blower for each application. One of the great things about the Vortech V3 supercharger is that it is a very efficient blower at over 70% efficiency. Last edited by Kyle@STILLEN; 03-10-2010 at 03:12 PM.

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03-11-2010, 05:40 AM	#8 (permalink)
G35s-Q8 Base Member Join Date: Mar 2010 Location: Kuwait Posts: 20 Drives: 08 G35 Sedan Rep Power: 17	So, i have some questions here for Kyle&Josh@Stillen, are you going to send out the S/C kits with uni-chip or control box just like you did the the old 350z S/C? Or are you planning to use Osiris UpRev reflash and tune? Do you thing the UpRev is better than uni-chip for tuning? And what made you go with that route for the tuning? (uni-chip vs uprev tuning).

03-10-2010, 10:44 AM	#9 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1120	^ well then, we can blow up our motor twice over with it then lol.

03-10-2010, 11:21 AM	#10 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1120	Stillen: Question. Are the tunes for 91oct? Are we going to have an option for 93oct for those of us who get decent gasoline?