40th Stillen Supercharger Build

ANMVQ · 07-10-2014, 07:22 AM

An gauges I went the same as above prosport, I had all three oil , trans temp and boost plus AEM wideband

Nism0 · 07-10-2014, 08:18 PM

Quote:

Originally Posted by ANMVQ

No way will you only see 8psi with the impeller. I had the Stillen Stock pully (8psi) and the impeller upgrade from Vortch same as the 928 and was seeing 11-12 PSI. I had no other mods the the SC or differnt pulley. I have a thread on hear all about my run at 500 WHP. Name of thread is Stillen500 WHP. You will need a new tune because you wil see more PSI.

btw 500 WHP on their kit will not happen

just be happy with mid 400's .

So by putting the cats back on I will see 11psi? And I've been reading other peoples experience with this kit. Not that I would ever go over 500whp (I have no intentions of building my motor) but why will 500hp not happen on this kit? It seems to have a lot of potential with some modifications...

Arrvaxx · 07-10-2014, 08:23 PM

Looking forward to the day all 40th's are boosted! Welcome to the club!

Nism0 · 07-10-2014, 08:38 PM

Quote:

Originally Posted by Arrvaxx

Looking forward to the day all 40th's are boosted! Welcome to the club!

Thank you sir!

Arrvaxx · 07-10-2014, 08:49 PM

Quote:

Originally Posted by Nism0

Thank you sir!

Just saw the 'Red dome'...hahah. Me too! My daughter hates it and the local guys say it is like I am a pimp! But screw both...I love it. Hate bright lights inside the car. I even keep the dash dim. And love the Stillen front...good choice. I'm going to start a 'Boosted 40th's Going to ZdayZ '15' thread...right now. Hope you will join us.

Nism0 · 07-10-2014, 09:51 PM

Quote:

Originally Posted by Arrvaxx

Just saw the 'Red dome'...hahah. Me too! My daughter hates it and the local guys say it is like I am a pimp! But screw both...I love it. Hate bright lights inside the car. I even keep the dash dim. And love the Stillen front...good choice. I'm going to start a 'Boosted 40th's Going to ZdayZ '15' thread...right now. Hope you will join us.

I like the blue better cause I can actually see in my car, but it didn't fit the theme of the 40th lol. I would LOVE to go to ZdayZ. Give me a link to the thread!!

Nissan370 · 07-11-2014, 01:40 PM

i have a set of used 750cc injectors for sale for $425 bucks i upgraded to i.d 1000cc injectors. so pm if your interested

AJ 370ZSC · 07-22-2014, 10:41 AM

Quote:

Originally Posted by Team_STILLEN

1slow370 is correct. The stock cats will last longer than HFC's and are also more durable. They are very unlikely to break apart. We have seen HFC's blow out and clog the exhaust. I would not be concerned with the stock cats breaking up and sending pieces into the engine. The exhaust gases are coming out so fast I don't even know if that would be possible.

You are going to lose almost 1 lb of boost in the actual cylinder from using test pipes so you'd probably get back 20 whp from going back to stock cats (though I see you are on an upgraded blower which we have not tested). There is a chance with the upgraded blower the boost would be too high in the cylinders but I couldn't not say without testing.

@Nism0 If you are piecing parts together for the kit, might as well go with some 725-750cc injectors.

i have the stillen cats on now, the best bet would be to go OEM cats then? this means i will lose HP and TQ correct? and the exhaust will be quieter?

Team_STILLEN · 07-22-2014, 10:57 AM

Quote:

Originally Posted by AJ 370ZSC

i have the stillen cats on now, the best bet would be to go OEM cats then? this means i will lose HP and TQ correct? and the exhaust will be quieter?

You will actually gain HP back with the Stock Cats over the HFC's or Test Pipes. The exhaust will be a little quieter.

ANMVQ · 07-22-2014, 10:59 AM

Quote:

Originally Posted by Nism0

So by putting the cats back on I will see 11psi? And I've been reading other peoples experience with this kit. Not that I would ever go over 500whp (I have no intentions of building my motor) but why will 500hp not happen on this kit? It seems to have a lot of potential with some modifications...

I would like to say yes, because I did. I only had the Impeller upgrade ( Vortec one) and went from 9PSI to 11-12 PSI. I never saw 8PSI the kit out of the box and custom tune I was seeing 9PSI all day long, Made the Impeller upgrade ( with a handful of supporting fuel mods) and saw 11PSI. I tried to reach 500WHP and fell 43 WHP short

Always had the Stock cats, Just cat back from Exotic speed

ANMVQ · 07-22-2014, 11:01 AM

Quote:

Originally Posted by Team_STILLEN

You will actually gain HP back with the Stock Cats over the HFC's or Test Pipes. The exhaust will be a little quieter.

Agreed

spdandpwr · 07-22-2014, 12:24 PM

The fact that by running stock cats you'll make more power, still be reliable, and be 50 state smog legal is pretty awesome.

That said, I do bet that with some cams, that reduce overlap, you'll be able to make 500 whp on this platform.

Rid3_FaM0uS · 07-22-2014, 01:08 PM

There are no such things as "cam"(and or large cam profile) upgrades for this car. Well there are but they are VERY impractical money wise and to my knowledge haven't been proven to provide results.

spdandpwr · 07-22-2014, 01:39 PM

Quote:

Originally Posted by Rid3_FaM0uS

There are no such things as "cam"(and or large cam profile) upgrades for this car. Well there are but they are VERY impractical money wise and to my knowledge haven't been proven to provide results.

I don't think that it is practical, nor do I suggest that it is absolutely necessary.

Overlap of the cams profiles is the important part. You dont want overlap on a f/i car. (overlap is the length of time both the intake and exhaust valves are open at the same time.) All internal combustion motors rely on cylinder pressure. F/I cars need only one set of valves open at a time to reduce boost loss out of the exhaust.

With cams that reduce overlap, you can raise boost without worrying that it'll escape out of the exhaust valves. Additionally, you can run the car without the cat, allowing you make more power that. On other platforms, running catless with an s/c = more power.

This is by no means a knock on any of the s/c and t/c kits that are available. They work great. I'm just saying that if we had the opportunity to reduce overlap, I think that we'd be able to make even more power. I defer to the k20 civic si that is running 15lbs of boost and making 420+ hp and 29X lb ft of torque...that's impressive and he used cams to get there.

theDreamer · 07-22-2014, 01:44 PM

There are not "cams" for our car in the traditional sense because of VVEL, it acts like a virtual cam on the intake side.
On the exhaust side we do have a physical cam, but it requires being able to adjust VVEL with the exhaust cam to make any difference which has not happened yet.

07-10-2014, 07:22 AM	#16 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	An gauges I went the same as above prosport, I had all three oil , trans temp and boost plus AEM wideband Nism0 likes this. __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

07-10-2014, 08:23 PM	#18 (permalink)
Arrvaxx A True Z Fanatic Join Date: Jul 2013 Location: Whore Island, MN Posts: 1,243 Drives: 40th F.I. Twin Turbo Rep Power: 17	Looking forward to the day all 40th's are boosted! Welcome to the club! __________________ 2010 370Z 40th Anniversary (#480 born 1/19/2010) Fast Intentions Twin Turbo \| Varis Arising II \| Limited Edition Recaro Sportster \| Tuned by Specialty Z \| 604hp 525 torque @14lbs boost on 100 octane

07-11-2014, 01:40 PM	#22 (permalink)
Nissan370 Enthusiast Member Join Date: Feb 2011 Location: Baltimore Posts: 431 Drives: 2009 ST BLK 370Z Rep Power: 14	i have a set of used 750cc injectors for sale for $425 bucks i upgraded to i.d 1000cc injectors. so pm if your interested __________________ 370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

07-22-2014, 01:08 PM	#28 (permalink)
Rid3_FaM0uS Track Member Join Date: Apr 2012 Location: Wapakoneta, Ohio Posts: 506 Drives: 2011 BS Nismo 370z Rep Power: 43	There are no such things as "cam"(and or large cam profile) upgrades for this car. Well there are but they are VERY impractical money wise and to my knowledge haven't been proven to provide results. __________________ Always under construction. . . Last edited by Rid3_FaM0uS; 07-22-2014 at 01:11 PM.

07-22-2014, 01:44 PM	#30 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	There are not "cams" for our car in the traditional sense because of VVEL, it acts like a virtual cam on the intake side. On the exhaust side we do have a physical cam, but it requires being able to adjust VVEL with the exhaust cam to make any difference which has not happened yet. 370Zsteve and Rid3_FaM0uS like this. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

07-22-2014, 12:24 PM	#27 (permalink)
spdandpwr Base Member Join Date: Jul 2014 Location: CT Posts: 52 Drives: 370Z Sport Rep Power: 10	The fact that by running stock cats you'll make more power, still be reliable, and be 50 state smog legal is pretty awesome. That said, I do bet that with some cams, that reduce overlap, you'll be able to make 500 whp on this platform.

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