Topgunz - air to air upgrade

MoulaZ · 01-29-2017, 12:02 AM

Just for a bit of amusement thought I'd throw this up here.

From the first moment I saw this Y-Pipe design as part of the original kit it never sat right with me. Always had suspicions of issues with inconsistent readings. Now I've already ordered TopgunZ's kit but thought in the meantime set out to prove just how inefficient the Y-Pipe really is.

My suspicions came from the idea that even with the recommended air deflection plate Stillen insist you use (redundant for me as I had the FrozenBoost Heat Exchanger which completely blocked my front bar opening thus preventing the problem the deflection plate resolves) there simply isn't enough time/length between air entering the Pod Filter to settle into a steady flow before hitting the MAFs. This is a problem for those who tried doing a Hybrid MAF/MAP tune since driveability suffers as a result.

Prior to working with Seb, a previous Tuner decided to bridge my MAFs to get around this. But long story short, didn't really work out too well, and my MAFs were maxing out at about 4000 RPM.

So I undid the bridge, got Seb to eTune, and picked up some generic 2.5" pipes & couplers to extend the distance between Pod & MAF and the results were pretty promising, see attached. Both done @ idle. Gave accelerator a small stab in the second.

This was done pretty much for sh*ts & giggles, and utterly redundant once the A2A kit finally arrives. Just makes me question all the more who the hell oversaw the design of this kit and who approved it in the end at Stillen.

TL: DR - Hated Y-Pipe from beginning because path of air too short between Pod & MAF. Bought some cheap 2.5" pipes & couplers to extend that path. Logs showed a marked improvement.

...not even going to get started on that atrocity of a silicone coupler piece at the SC itself...

Kzonts · 01-29-2017, 04:46 AM

After reading about all the flaws in the Stillen kit, I would never put it on my car unless I was rerotfitting this A2A kit with it. It's unfortunate for those who didn't have the chance to learn about said flaws.

ChaseZ · 01-29-2017, 11:42 PM

Quote:

Originally Posted by MoulaZ

Just for a bit of amusement thought I'd throw this up here.

( Click to show/hide )

That whole kit is lunacy, the shortcomings many.

I did find a use for that cast aluminum Y pipe at least... to cut off the flanges and weld them on my temporary charge pipe

shadow85 · 01-29-2017, 10:10 PM

Can I see some dyno results of the Stillen + TG A2A upgrade?

What pages are they on?

Cheers.

TopgunZ · 01-30-2017, 01:22 PM

Quote:

Originally Posted by shadow85

Can I see some dyno results of the Stillen + TG A2A upgrade?

What pages are they on?

Cheers.

ACGz34 · 01-30-2017, 01:56 PM

Quote:

Originally Posted by TopgunZ

Is this on e85 or 93?

Sent from my iPhone using Tapatalk

TopgunZ · 01-30-2017, 02:48 PM

This is on E85 with the Si trim. There was also belt slip at 6800 as you can see both hp/tq drop there.

shadow85 · 01-31-2017, 04:16 AM

Quote:

Originally Posted by TopgunZ

This is on E85 with the Si trim. There was also belt slip at 6800 as you can see both hp/tq drop there.

Why does the belt slip occur, and how does one prevent it?

shadow85 · 01-30-2017, 07:46 PM

Torque is pretty linear isn't it.

TopgunZ · 01-30-2017, 08:01 PM

Quote:

Originally Posted by shadow85

Torque is pretty linear isn't it.

Extremely. That is a cenrifugal superchargers thing. They are very predictable. Also, easier on components like rods and trannys since it is brought in so smooth where turbos hit hard and pd blowers slam it in at the throttle.

TopgunZ · 01-31-2017, 07:41 AM

It slips because there is about 30* of belt wrap around that stillen pulley (design flaw). To prevent it you do the 2" extra pulley mod and longer belt. Start at page 66.

Jayhovah · 01-31-2017, 09:43 AM

Quote:

Originally Posted by TopgunZ

It slips because there is about 30* of belt wrap around that stillen pulley (design flaw). To prevent it you do the 2" extra pulley mod and longer belt. Start at page 66.

It might be easier to specify a post #... The number of posts per page is a configurable option on this forum so whenever folks specify a page# it's difficult to find. For example, I have my posts/page maxed out so this thread is only 36 pages long.

TopgunZ · 01-31-2017, 10:10 AM

Starts at post #878. Also, talk to Tbatt. He is selling the machined spacer for it.

bewhitey · 01-31-2017, 07:20 PM

had a local shop weld on an aluminum plate on the front of my manifold today. Turned out nice!

TopgunZ · 02-01-2017, 07:54 AM

Quote:

Originally Posted by bewhitey

had a local shop weld on an aluminum plate on the front of my manifold today. Turned out nice!

Was this strictly for looks? Going to paint it black?

01-29-2017, 04:46 AM	#2 (permalink)
Kzonts Track Member Join Date: Mar 2015 Location: Greenville, SC Age: 62 Posts: 893 Drives: 2019 Roadster Rep Power: 200743	After reading about all the flaws in the Stillen kit, I would never put it on my car unless I was rerotfitting this A2A kit with it. It's unfortunate for those who didn't have the chance to learn about said flaws. __________________ 2019 Magnetic Black Roadster FI Exhaust \| EVO-R Rear Diffuser \| Artwork Bodyshop Front Splitter \| Tuned By Specialty Z Last edited by Kzonts; 01-29-2017 at 05:31 AM.

01-30-2017, 02:48 PM	#7 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	This is on E85 with the Si trim. There was also belt slip at 6800 as you can see both hp/tq drop there. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-31-2017, 07:41 AM	#11 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	It slips because there is about 30* of belt wrap around that stillen pulley (design flaw). To prevent it you do the 2" extra pulley mod and longer belt. Start at page 66. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-31-2017, 10:10 AM	#13 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6835	Starts at post #878. Also, talk to Tbatt. He is selling the machined spacer for it. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

01-31-2017, 07:20 PM	#14 (permalink)
bewhitey Base Member Join Date: Dec 2015 Location: Denver Posts: 78 Drives: 370z 40th #704 M6 SC Rep Power: 11	had a local shop weld on an aluminum plate on the front of my manifold today. Turned out nice! __________________ Vortech SC\|Stillen Sway Bars+Facia+Skirts+CB Exhaust\|Z1 Clutch+CSC Elimination Kit\|ACT LW Flywheel\|Tein Coils+EDFC\|SPL Camber Arms\|RJM Clutch Pedal\|TWM Short Shifter\|Morimoto Switchback LED's\|Z1 34 Row Oil Cooler\|AIR 2 AIR\|E85 Flex Fuel\|460 whp TheBoostCreep

01-29-2017, 10:10 PM	#4 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 921 Drives: 15' 370Z A/T AMM TT Rep Power: 26	Can I see some dyno results of the Stillen + TG A2A upgrade? What pages are they on? Cheers.

01-30-2017, 07:46 PM	#9 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 921 Drives: 15' 370Z A/T AMM TT Rep Power: 26	Torque is pretty linear isn't it.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Best upgrade/mod for 200-300$?	louiey370z	Engine & Drivetrain	10	06-09-2015 11:59 PM
Upgrade?	Dzel	Other Vehicles	83	03-08-2014 05:55 PM
Upgrade	Darryl79	New Roadster 370Z Owner	7	08-23-2012 02:21 PM
Big 3 upgrade ???	dbkustomz	Audio & Video	6	06-30-2012 07:00 AM