Stillen air to air conversion fabrication thread

TopgunZ · 07-27-2015, 05:18 PM

Pro4Jackster, I think I have your old kit. I have the flex bar and the idler pulley your talking about.

JWillis72 · 07-27-2015, 05:46 PM

If you don't mind please post what they tell you. I will buy one of the pulleys and brace also if that helps talk them into making them.

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Pro4Jackster · 07-27-2015, 06:13 PM

Quote:

Originally Posted by TopgunZ

Pro4Jackster, I think I have your old kit. I have the flex bar and the idler pulley your talking about.

Damn. I get around.

That setup made 15+psi with no problems for around 1000 miles. I never got a chance to push it any further.

JWillis72 · 07-27-2015, 06:15 PM

What did you get for power?

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Pro4Jackster · 07-27-2015, 06:49 PM

We never dyno'd it to see. I'd hate to even guess. We just ran it on the break-in tune for the built motor. Then at 1000 miles pulled it off and sold the kit.

I do remember there being a ceiling somewhere around 450-475 hp for me. And I don't know if it was an airflow problem before the S/C, an IAT problem, or belt slip above 15 psi. This Boosted Performance setup should solve two of those problems. It's going to be interesting to see what people do with this kit now.

JWillis72 · 07-27-2015, 07:08 PM

Oh, I assumed you blew it up. It is going to be interesting, I never considered uping the psi before BP and evohunter started this project.

TopgunZ · 07-27-2015, 07:25 PM

Just measured my pullies

Stillen 2.90"
Jackshaft 3.20"
SC 3.20"

With impellar upgrade this is supposed to see 12psi sea level

I cant see a 2.45", 2.75", and 2.70" making anything under 15 but I havent calculated it.

Pro4Jackster · 07-27-2015, 07:36 PM

Quote:

Originally Posted by TopgunZ

Just measured my pullies

Stillen 2.90"
Jackshaft 3.20"
SC 3.20"

With impellar upgrade this is supposed to see 12psi sea level

I cant see a 2.45", 2.75", and 2.70" making anything under 15 but I havent calculated it.

I tried to keep the front serp pulley as large as possible for better belt wrap and leverage. It only has about 30 degrees of wrap to work with. Wouldn't it be better to carbonite coat the 3.12" stock serp pulley and use the rear pulleys to increase blower RPMs? That plus an impeller upgrade should make 550hp on a 3.7L. I guess it's all just speculation until someone tries it.

JWillis72 · 07-27-2015, 07:50 PM

Has anyone calculated the impellers rpm? I was reading on 928 motorsport today and it said the vortech is only made to spin 50,000 rpm but they can up that to 60, 000 but I have no idea what it starts at in the Stillen kit.

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Pro4Jackster · 07-27-2015, 10:31 PM

Go to vortech's website. Click manuals and tech info, impeller speed calculator, then fill out the info for the V2/V3. It's about 49K RPMs as Stillen sells the kit. There are multiple people on the 350Z forums turning their vortechs over 60K RPMs for years. Then when the bearings fail, send the unit to vortech for a rebuild or trade up to something better.

Boosted Performance · 07-27-2015, 11:56 PM

There are high speed bearings available for the Vortech:

928 Motorsports - Premium High-Speed Ceramic Bearings for Vortech® Superchargers

I would take some time and try to get as much of the belt around the drive pulley on the jack shaft as possible. This may involve some customizing, but would go a long way if one is trying to push this blower.

mikey1600 · 07-28-2015, 04:01 AM

Quote:

Originally Posted by Boosted Performance

There are high speed bearings available for the Vortech:

928 Motorsports - Premium High-Speed Ceramic Bearings for Vortech® Superchargers

I would take some time and try to get as much of the belt around the drive pulley on the jack shaft as possible. This may involve some customizing, but would go a long way if one is trying to push this blower.

$500 for bearings rofl, wtf

EVOHUNTER · 07-28-2015, 08:37 AM

Quote:

Originally Posted by JWillis72

Has anyone calculated the impellers rpm? I was reading on 928 motorsport today and it said the vortech is only made to spin 50,000 rpm but they can up that to 60, 000 but I have no idea what it starts at in the Stillen kit.

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ive calculated that with my 2.75" on serp side, 2.75" on jack shaft and 2.70" on blower - 52344 RPM

JWillis72 · 07-28-2015, 08:38 AM

Quote:

Originally Posted by EVOHUNTER

ive calculated that with my 2.75" on serp side, 2.75" on jack shaft and 2.70" on blower - 52344 RPM

Are you going to do the higher rpm kit or leave it as is?

EVOHUNTER · 07-28-2015, 08:52 AM

I tried removing the intercooler inside the manifold, it wont come out inless I remove the manifold... I don't want to do that this year lol.

07-27-2015, 05:18 PM	#76 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6833	Pro4Jackster, I think I have your old kit. I have the flex bar and the idler pulley your talking about. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

07-27-2015, 06:49 PM	#80 (permalink)
Pro4Jackster Base Member Join Date: Oct 2011 Location: NW Houston Posts: 130 Drives: '08 350Z Rep Power: 13	We never dyno'd it to see. I'd hate to even guess. We just ran it on the break-in tune for the built motor. Then at 1000 miles pulled it off and sold the kit. I do remember there being a ceiling somewhere around 450-475 hp for me. And I don't know if it was an airflow problem before the S/C, an IAT problem, or belt slip above 15 psi. This Boosted Performance setup should solve two of those problems. It's going to be interesting to see what people do with this kit now. __________________ Jtranbuilt '08 Z [Jtran PT7075 Single - Fujitsubo - Transgo - Wilwood - TE37SL - BC Racing]

07-27-2015, 07:25 PM	#82 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6833	Just measured my pullies Stillen 2.90" Jackshaft 3.20" SC 3.20" With impellar upgrade this is supposed to see 12psi sea level I cant see a 2.45", 2.75", and 2.70" making anything under 15 but I havent calculated it. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

07-27-2015, 10:31 PM	#85 (permalink)
Pro4Jackster Base Member Join Date: Oct 2011 Location: NW Houston Posts: 130 Drives: '08 350Z Rep Power: 13	Go to vortech's website. Click manuals and tech info, impeller speed calculator, then fill out the info for the V2/V3. It's about 49K RPMs as Stillen sells the kit. There are multiple people on the 350Z forums turning their vortechs over 60K RPMs for years. Then when the bearings fail, send the unit to vortech for a rebuild or trade up to something better. __________________ Jtranbuilt '08 Z [Jtran PT7075 Single - Fujitsubo - Transgo - Wilwood - TE37SL - BC Racing] Last edited by Pro4Jackster; 07-27-2015 at 10:35 PM.

07-27-2015, 11:56 PM	#86 (permalink)
Boosted Performance The370Z.com Sponsor Join Date: Feb 2010 Location: Edmonton, AB Posts: 1,629 Drives: Z's Rep Power: 3382	There are high speed bearings available for the Vortech: 928 Motorsports - Premium High-Speed Ceramic Bearings for Vortech® Superchargers I would take some time and try to get as much of the belt around the drive pulley on the jack shaft as possible. This may involve some customizing, but would go a long way if one is trying to push this blower. __________________ 750WHP starting @ $7,500 to the door FOR DETAILS VISIT: http://www.the370z.com/members/boosted-performance.html FB: https://www.facebook.com/Boosted-Per...6303179791462/ IG @boostedperformanceyeg

07-27-2015, 05:46 PM	#77 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 44	If you don't mind please post what they tell you. I will buy one of the pulleys and brace also if that helps talk them into making them. Sent from my iPhone using Tapatalk

07-27-2015, 06:15 PM	#79 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 44	What did you get for power? Sent from my iPhone using Tapatalk

07-27-2015, 07:08 PM	#81 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 44	Oh, I assumed you blew it up. It is going to be interesting, I never considered uping the psi before BP and evohunter started this project.

07-27-2015, 07:50 PM	#84 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 44	Has anyone calculated the impellers rpm? I was reading on 928 motorsport today and it said the vortech is only made to spin 50,000 rpm but they can up that to 60, 000 but I have no idea what it starts at in the Stillen kit. Sent from my iPhone using Tapatalk

07-28-2015, 08:52 AM	#90 (permalink)
EVOHUNTER Track Member Join Date: Jul 2011 Location: Edmonton, Canada Posts: 681 Drives: BOOSTED3-7-0 Rep Power: 14	I tried removing the intercooler inside the manifold, it wont come out inless I remove the manifold... I don't want to do that this year lol. __________________

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