70mm APS intake?

Justin 05 STi · **Joined:** Thu Mar 02, 2006 2:51 am **Posts:** 345

I have one going on my STi (along with their hard inlet and 525 FMIC).

Does anybody have some scaling suggestions I can start out with? Either the table from one you've scaled before, or some quick and dirty math I can apply to the stock table as a baseline?

I thought about starting off with the 65mm posted here, but figured somebody might have something closer to what I'll end up with. I just didn't want to start off with the stock table if I don't have to.

ev8siv3 · **Joined:** Fri Mar 24, 2006 7:14 pm **Posts:** 768

Justin 05 STi wrote:

I have one going on my STi (along with their hard inlet and 525 FMIC).

Does anybody have some scaling suggestions I can start out with? Either the table from one you've scaled before, or some quick and dirty math I can apply to the stock table as a baseline?

I thought about starting off with the 65mm posted here, but figured somebody might have something closer to what I'll end up with. I just didn't want to start off with the stock table if I don't have to.

Start with about +25% on the MAF values.

Justin 05 STi · **Joined:** Thu Mar 02, 2006 2:51 am **Posts:** 345

ev8siv3 wrote:

Start with about +25% on the MAF values.

Sounds good, thanks for the tip!

Justin 05 STi · **Joined:** Thu Mar 02, 2006 2:51 am **Posts:** 345

Small update:

I got the car back together, and get my Tactrix cable I'd loaned out back today. So I will finally be able to start playing with this.

I took a stock MAF table and multiplied by 1.25. The values came out similar to the other 70mm intake post here, so I think it will be a good starting point for me.

After I'm finished with the logging and re-scaling I'll be sure to post up the finished product.

praha-sti · **Posted:** Thu Jul 08, 2010 1:35 pm

PM me your email address, and I will send you mine ... mine is pretty good for a base for sure (if still needed).

Edit: In fact, see .xls attached.

Justin 05 STi wrote:

Small update:

I got the car back together, and get my Tactrix cable I'd loaned out back today. So I will finally be able to start playing with this.

I took a stock MAF table and multiplied by 1.25. The values came out similar to the other 70mm intake post here, so I think it will be a good starting point for me.

After I'm finished with the logging and re-scaling I'll be sure to post up the finished product.

Justin 05 STi · **Joined:** Thu Mar 02, 2006 2:51 am **Posts:** 345

praha-sti wrote:

PM me your email address, and I will send you mine ... mine is pretty good for a base for sure (if still needed).

Edit: In fact, see .xls attached.

I'll have a look, thanks!

Justin 05 STi · **Joined:** Thu Mar 02, 2006 2:51 am **Posts:** 345

I got a PM about this thread today and quickly realized I never posted back. Doh! I'm attaching an excel file of what I ended up with. Better late than never!

Attachment:

justin05sti 70mm aps maf scale.xls [13.5 KiB]
Downloaded 515 times

I spent a fair amount of time working on the closed loop stuff and then had the tuner do the open loop stuff on his dyno. I've done learning views after LOTS of driving and am happy with the results.

I am not using the filter from APS. I didn't want to chance any oil contaminating the MAF so I got a dry filter. It is an aFe Pro Dry S, part number 21-35507.

Hope this helps, any other questions just ask.

hebs · **Joined:** Tue Nov 21, 2006 9:31 am **Posts:** 337

Do they make a replacement dry filter for te 65mm?

02rexwi · **Joined:** Wed Jul 16, 2008 11:32 pm **Posts:** 324

The filter for the 65mm and 70mm are the same.

wricerx · **Posted:** Thu Aug 18, 2011 5:59 pm

What would you guys suggest if you went to the 70mm and modified stock (usdm sti) injectors?

RomRaider

70mm APS intake?

Who is online