Supercharge or Turbocharge?

Jordo! · 10-05-2011, 04:34 PM

Honestly, it really doesn't matter all that much, because on this motor you are choosing between a belt driven turbine or two exhaust gas driven turbines, and both set ups are capable of a reasonably broad powerband and considerable top end.

What I want to see is a roots or twinscrew blower for this car. Then there's a real debate to be had...

theDreamer · 10-05-2011, 04:42 PM

Either would be a great addition to the car, I went supercharger for the sound and linear power.

bvl · 10-05-2011, 10:53 PM

Quote:

Originally Posted by my2004Z

Supercharger for me. They seem safer on the engine.

Safety has nothing to do with the technology choice for forced induction.

Safety is 100% about correct engine management. You can grenade a NA engine with poor engine management

- b

my2004Z · 10-06-2011, 08:42 AM

Quote:

Originally Posted by bvl

Safety has nothing to do with the technology choice for forced induction.

Safety is 100% about correct engine management. You can grenade a NA engine with poor engine management

- b

Thank you for your opinion but it still seems like the safer route to me.

Jordo! · 10-06-2011, 08:58 AM

Quote:

Originally Posted by my2004Z

Thank you for your opinion but it still seems like the safer route to me.

There's really no reason to think that.

I suppose you could make the case that there are fewer parts that could fail on a SC set up as compared to a twin turbo (for one thing, only one turbine to worry about), but there really is no reason to presume greater safety.

Centrifugal blowers do tend to make power a bit later in the rev range than a properly set up twin turbo (although the torque curve looked pretty flat for this motor on that set-up), but under high load approaching redline, both are capable of destroying a motor in short order if the tune is bad or if the internals cannot tolerate the extra power.

bvl · 10-07-2011, 07:11 AM

Quote:

Originally Posted by my2004Z

Thank you for your opinion but it still seems like the safer route to me.

Its not an opinion...its fact. Do the research and understand what I am referring to. Many good books out there. I read Corky Bell's books quite some time ago. Some of the A/R math is a bit deep and not necessarily what everyone needs but you get the idea. I have tuned several aftermarket cars using aftermarket computers, and the fundamentals are really the same: air, fuel, timing.

How the air is compressed is irrelevant. What is crucial is correct engine management when it comes to safety (i.e. making sure the engine does not grenade)

When you say something like 'it seems like the safer route', you are not giving me the impression you have an informed opinion here on the technology and issues at hand. Some of us try to offer some guidance to get a better understanding of the entire system and make a more informed choice for yourself.

Let me give you an example (real world). Assuming equal thermal efficiencies between 0 and 12 PSI, would you rather run a 8 PSI SC system that uses an AFPR, fuel pump and timing retard, or a 6 PSI Turbo system with larger injectors and a fully remapped or aftermarket ECU?

Now remove the words SC and Turbo from the above paragraph and re-read....that is really what is important.

In either case, my preference would be choice B.

- b

Jordo! · 10-07-2011, 11:18 AM

^^ I believe choice "A" is the "Civic with Mismatched Body Kit method"

dpmdc · 03-22-2012, 11:20 PM

Looking at getting a 370 for track use. Which is the more reliable the Stillen SC or the GTM TT? Having ran turbos on the track previously I am concerned with heat biuld up.

Anyone know how much a stock engine can take without internal mods?

GUTCH · 03-23-2012, 01:05 AM

I don't know the answer to your question but thought I'd point out that GTM produce SC kits as well.

Reality · 03-23-2012, 09:06 AM

Quote:

Originally Posted by dpmdc

Looking at getting a 370 for track use. Which is the more reliable the Stillen SC or the GTM TT? Having ran turbos on the track previously I am concerned with heat biuld up.

Anyone know how much a stock engine can take without internal mods?

You should really search on this subject... If you are planning on tracking your car and worried about heat, forget FI.

G37sHKS · 03-23-2012, 10:03 AM

For track, I recommend Stillen SC.

For DD and fun, go TT

blackonorange · 03-25-2012, 02:16 PM

Single turbo!!!!!!!!!

edub370 · 03-25-2012, 03:29 PM

^^ that.

i would like to see an sts car get tracked. seems like the remote mount system could possibly help the massive heat increases seen by most FI cars over a prolonged period on the track

Baer383 · 03-25-2012, 04:44 PM

I just finished my GTM Stage 1.5 SC and it is extremely quiet and makes a ton of power while looking stock and you can barely hear it.

Baer383 · 03-25-2012, 04:46 PM

Quote:

Originally Posted by kenchan

ive owned and played with turbo and sc cars in the past. i like the sound of turbo's better and ease of tuning. not a fan of the whine of superchargers but this is just personal taste.

Quote:

Originally Posted by exedy699

+1

I found myself hating the new shelby gt500 bc of the loud whine it makes. Don't get me wrong, the car itself looks gorgeous.

Both of you should take a ride in my car it would change your mind.

10-05-2011, 04:34 PM	#16 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Honestly, it really doesn't matter all that much, because on this motor you are choosing between a belt driven turbine or two exhaust gas driven turbines, and both set ups are capable of a reasonably broad powerband and considerable top end. What I want to see is a roots or twinscrew blower for this car. Then there's a real debate to be had... __________________ Enjoy it. Destroy it.

10-05-2011, 04:42 PM	#17 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	Either would be a great addition to the car, I went supercharger for the sound and linear power. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

10-07-2011, 11:18 AM	#22 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	^^ I believe choice "A" is the "Civic with Mismatched Body Kit method" __________________ Enjoy it. Destroy it.

03-22-2012, 11:20 PM	#23 (permalink)
dpmdc Base Member Join Date: Mar 2012 Location: Chicago suburbs Posts: 48 Drives: Diasio D962R Rep Power: 13	TT vs SC Looking at getting a 370 for track use. Which is the more reliable the Stillen SC or the GTM TT? Having ran turbos on the track previously I am concerned with heat biuld up. Anyone know how much a stock engine can take without internal mods?

03-25-2012, 03:29 PM	#28 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	^^ that. i would like to see an sts car get tracked. seems like the remote mount system could possibly help the massive heat increases seen by most FI cars over a prolonged period on the track __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

03-23-2012, 01:05 AM	#24 (permalink)
GUTCH Base Member Join Date: Jun 2010 Location: Australia Posts: 134 Drives: 2018 Audi TT RS Rep Power: 15	I don't know the answer to your question but thought I'd point out that GTM produce SC kits as well.

03-23-2012, 10:03 AM	#26 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	For track, I recommend Stillen SC. For DD and fun, go TT

03-25-2012, 02:16 PM	#27 (permalink)
blackonorange A True Z Fanatic Join Date: Jul 2011 Location: Saskatchewan Posts: 1,078 Drives: 09 370z Rep Power: 16	Single turbo!!!!!!!!!

03-25-2012, 04:44 PM	#29 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	I just finished my GTM Stage 1.5 SC and it is extremely quiet and makes a ton of power while looking stock and you can barely hear it. __________________ 2013 ZL1 754 rwhp 747 rwtq

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