Cheap. Fast. Reliable. Pick two. (Evo IX Build)
Speed Density is worth it and that thread posted on the first page, GST comes back and says theres gains on the last page. With the BBK and Speed Density your car will be a lot smoother plus gain 10-15whp.
Thread Starter
Joined: May 2007
Posts: 3,619
Likes: 29
From: @ a track near you
Looked long and hard but didn't find the thread that Bryan at GST mentioned some of the down falls of SD. When addressing the OP's first post I just wanted to mention that the SD MAY be the only thing to reconsider. If anyone else finds that thread it would be nice if they could post it or if someone else with extensive SD experience such as a knowledgeable tuner could comment. I am sure that for all out power SD definitely has an advantage. But is it for everyone especially when it's your DD?

----- Original Message -----
From: Noah
To: Gregory Simpson
Sent: Thursday, March 11, 2010 11:59 AM
Subject: Re: Dyno and Pricing Question
After doing more research on Evom.net, I'm beginning to wonder if I even need Speed Density with my modifications. What is your professional opinion?
----- Original Message -----
From: Gregory Simpson
To: Noah
Sent: Thursday, March 11, 2010 12:12 PM
Subject: Re: Dyno and Pricing Question
Hey Noah,
Honestly we only really see the need to run Speed Density on large frame GT35 type turbo's where a 4" filter inlet flows more than a OEM MAF can support, I would personally think for your setup you would make the same power with the MAF as you would by switching to Speed Density.
Thanks,
Gregory Simpson - Sales
GST Motorsports
2439 Industrial Pkwy. West
Suite A
Hayward, CA 94545
510-264-9049
FAX 510-264-9740
www.gstmotorsports.com
Similar to my own setup, though I went a bit further. Mine has been super reliable and I'm at 60K with the stock clutch. However, fast and reliable has definitely not been close to cheap.
Thread Starter
Joined: May 2007
Posts: 3,619
Likes: 29
From: @ a track near you
Thread
Thread Starter
Forum
Replies
Last Post
EricJ@AMS
09+ Ralliart Engine/Turbo/Drivetrain
185
Jan 2, 2021 08:05 PM
evolve_VIII
Evo Engine / Turbo / Drivetrain
444
Dec 16, 2020 08:11 PM
w8less1der
For Sale - Engine / Drivetrain / Power
44
Feb 1, 2018 05:37 PM






