G35MadMan,

There's also posts out there that say Injen's CAI loses power. Check out my350Z for the latest info. Long ram systems are said to lose torque in order to gain top end horsepower. Is it true? I have reason to believe so in some applications.

All (most) CAI's increase the air flow delivered through the MAF sensor to the throttlebody to the engine. If the ECU doesn't (can't) add additional fuel, then the engine will run lean and lose power. However, if the ECU's fuel maps can keep up, the engine usually makes additional power.

We know the 350Z's air intake system is more efficient than the G35's. The the recent dyno results and demand for Z air ducts offer some proof. JWT's 350Z Pop Charger has been dynoed on several times and consistantly shown power gains in the 5 to 7 hp range. Why talk about this Z system?

Well, let's do a little comparision. Jim Wolf's Popcharger consists of a large blue air filter, a heat shield, and a velocity ring (venturi). Stillen's G35 CAI consists of a large red air filter, a heat shield, and a velocity ring.

Do velocity rings increase air flow? They indeed do! (A proven theory.) Just ask Danny at TechnoSquare how much air flow the JWT/Stillen velocity ring adds... he tested it on his air flow bench.

I maintain both these systems are essentially the same. Both claim similar power increases. Stillen claims 5hp for the Coupe and 11hp for the Sedan. Jim Wolf claims over 4hp for Nissan NA engines --
http://www.nissanperformancemag.com/june03/350pop/

After reading and hearing many positive claims and negative comments on CAI's, I ended up spending my money on the CAI I thought was best for my purposes.

DaveO






143634-jfilter.jpg

 

Another picture of JWT's Pop-Charger. Note the similarity to Stillen's CAI.



143639-DCP_3271.jpg

 

Stillen's CAI



143643-Stillen CAI.jpg

 

Hey.. gurgenpb and cliverman... debate the intake power gain/loss all you want, but knock off the name calling.

-Ryo

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter

 

Ryo. Thanks for straightening out the thread and deleting the posts.

Gurgen

<P ID="edit"><FONT class="small"><EM>Edited by gurgenpb on 11/23/03 11:22 AM.</EM></FONT></P>

 

Yeah thanks.

 

DaveO,
who makes that strut brace in that pic? I've been looking for one for the G but can not for the life of me find one.

Thanks,
Cory

 

Just recently I raced another g35c Auto like mine, except i have a groundink kit, z-tube, and stillen intake.....and he was stock!

We raced in pure auto mode, no manumatic bs.

I was pulling on him the entire way up to 70mph.
It was like racing an acura...
I love this combo, And living in miami, no hydrolock for me, or debris issues! I'll stick with this WINNING combo... haha

My 2 cents..

Peace
-Eric

'03.5 Silver/Black | Prem | Perf | Aero | Stillen Hi-Flow | Z -Tube | Nismo Oil/Radiator Caps | Solid Allum Pedals | Allum Matts (Infinit Logo) | 15% Tints | Valentine1 | Hide-Away License Plate!

 

Cliverman,

I believe the picture is of a 350Z and not a G35. As far as I know, a strut tower brace isn't available for the G35. If you can find one, please let me know. Thanks.

Take care,


amG35
2003 Silver Sedan

 

yeah it's not available... unless you go with Crawford's strut bar for the z and try to fit it on. I am desperately looking for one too.... For now, we have to contnt ourselves with sway bars only

Gurgen

 

I really wish someone hurry up and make one. They help. I had both front and back on my 330i and it was a lot tighter. You don't notice in everyday driving but when you hit a corner at speed they keep the body from rolling.

 

ok ok, so coming back to the intake questions:

if i get the stillen and ztube or watevers, by itself, i will lose hp. but if i retune my ecu to even out the A/F mixture, i will be gaining hp. is this correct? does anyone want to test it? damn intakes are expensive man!.

G35S 6MT
Technosquare ECU
350Z Springs & Struts
6-wire ground kit

 

From Dave at Crawford, in reply to an email i sent him last week:<blockquote><font class="small">In reply to:</font><hr>

-----Original Message-----
From: Doug [mailto:crawfordzcar@comcast.net]
Sent: Tuesday, November 18, 2003 12:24 PM
To: SoCalTed
Subject: RE: G35 sedan questions

Hi Ted still haven't had a chance to fit up the strut bar flanges but will hopefully have time in the near future after the headers get into full production

Doug Stewart
Crawford Z Service
615-327-4159
www.crawfordzcar.com

<hr></blockquote>


'03 Sedan 5a: BS/G, Prem, Aero/Body, Sport, Nav
Click for MODS or Vote at Online Showoff

 

Thanks for the info Ted.

 

I installed the Z tube and stillen togther and I must say that I did feel more power, not much but definatelly something, and the engine was a bit louder too. The sound of the stillen is priceless IMHO. And no I dont need to justyfy my purchases I made a bunch of bad ones, this one is a great combo.

Crawford Plenum / Z tube + Stillen Hi-Flow / Borla Dual Exhaust / Stillen Xdrilled+Stotted Rotors
Best 1/4 mile 14.371 @ 100.29, 60ft 2.347