Anyone revise Perrin's BIGMAF CAI MAF scaling? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

1Cor10:23 · 09-26-2015, 11:32 PM

Hi all,

Thinking about purchasing the 3" intake from perrin and reading up / preparing to do some personal MAF scaling with @vgi tool and RomRaider.

Wondering if anyone has a more refined version than what Perrin released on their site? I've heard that people are still seeing +/-10% from the Perrin table.

Would be great to see any other tables out there that have been refined to use as a starting spot.

Thanks!

steve99 · 09-27-2015, 12:09 AM

Their is sod all power in intakes over a drop in filter and cut off snorkel.

1Cor10:23 · 09-27-2015, 12:21 AM

Sorry @steve99, not sure exactly what you're saying but I think it's along the lines of not much power available beyond drop in and snorkel? Totally get it, I'm mostly looking to run the perrin intake due to clearance issues - my oil cooler setup doesn't play nice with the stock box.

Edit: just googled "sod all" - first time ever encountering this phrase...the more you know!

steve99 · 09-27-2015, 03:25 AM

Quote:

Originally Posted by 1Cor10:23

Sorry @steve99, not sure exactly what you're saying but I think it's along the lines of not much power available beyond drop in and snorkel? Totally get it, I'm mostly looking to run the perrin intake due to clearance issues - my oil cooler setup doesn't play nice with the stock box.

Edit: just googled "sod all" - first time ever encountering this phrase...the more you know!

Sorry its aussie slang :-)

yes the perrin scaling is not too good best to do your own using it as a base. just use the default settings in the vgi utility get the closed loop done first then open loop once the cl is dialled in.

1Cor10:23 · 09-27-2015, 02:59 PM

@steve99 thanks Steve, CL looks fairly straight forward to log for (just a bunch of pulls) however, the list of logs for OL looks daunting (based on VGI notes) - any advice here on how best to complete OL for our platform?

phrosty · 09-27-2015, 03:20 PM

Quote:

Originally Posted by 1Cor10:23

@steve99 thanks Steve, CL looks fairly straight forward to log for (just a bunch of pulls) however, the list of logs for OL looks daunting (based on VGI notes) - any advice here on how best to complete OL for our platform?

He's got a link in his sig for MAF scaling...

drewbot · 09-28-2015, 01:47 PM

Quote:

Originally Posted by 1Cor10:23

@steve99 thanks Steve, CL looks fairly straight forward to log for (just a bunch of pulls) however, the list of logs for OL looks daunting (based on VGI notes) - any advice here on how best to complete OL for our platform?

Also checkout @jamesm posts about it almost 2 years ago. I did a scale way back only to confirm that the OEM scale was pretty close

1Cor10:23 · 09-28-2015, 01:59 PM

@drewbot I think I've got a path forward on this, shoutout to @steve99 @vgi @Kodename47; I got schooled by them over the weekend reading through steve's MAF thread.

09-26-2015, 11:32 PM	#1
1Cor10:23 Senior Member Join Date: Jul 2013 Drives: '13 Whiteout FR-S (M/T) Location: GTA Posts: 1,205 Thanks: 492 Thanked 392 Times in 238 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	Anyone revise Perrin's BIGMAF CAI MAF scaling? Hi all, Thinking about purchasing the 3" intake from perrin and reading up / preparing to do some personal MAF scaling with @vgi tool and RomRaider. Wondering if anyone has a more refined version than what Perrin released on their site? I've heard that people are still seeing +/-10% from the Perrin table. Would be great to see any other tables out there that have been refined to use as a starting spot. Thanks! __________________ \|1Cor10:23 \| Whiteout FR-S \| Form Follows Function Build\|

09-27-2015, 12:21 AM	#3
1Cor10:23 Senior Member Join Date: Jul 2013 Drives: '13 Whiteout FR-S (M/T) Location: GTA Posts: 1,205 Thanks: 492 Thanked 392 Times in 238 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	Sorry @steve99, not sure exactly what you're saying but I think it's along the lines of not much power available beyond drop in and snorkel? Totally get it, I'm mostly looking to run the perrin intake due to clearance issues - my oil cooler setup doesn't play nice with the stock box. Edit: just googled "sod all" - first time ever encountering this phrase...the more you know! __________________ \|1Cor10:23 \| Whiteout FR-S \| Form Follows Function Build\| Last edited by 1Cor10:23; 09-27-2015 at 12:46 AM.

09-27-2015, 02:59 PM	#5
1Cor10:23 Senior Member Join Date: Jul 2013 Drives: '13 Whiteout FR-S (M/T) Location: GTA Posts: 1,205 Thanks: 492 Thanked 392 Times in 238 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	@steve99 thanks Steve, CL looks fairly straight forward to log for (just a bunch of pulls) however, the list of logs for OL looks daunting (based on VGI notes) - any advice here on how best to complete OL for our platform? __________________ \|1Cor10:23 \| Whiteout FR-S \| Form Follows Function Build\|

09-28-2015, 01:59 PM	#8
1Cor10:23 Senior Member Join Date: Jul 2013 Drives: '13 Whiteout FR-S (M/T) Location: GTA Posts: 1,205 Thanks: 492 Thanked 392 Times in 238 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	@drewbot I think I've got a path forward on this, shoutout to @steve99 @vgi @Kodename47; I got schooled by them over the weekend reading through steve's MAF thread. __________________ \|1Cor10:23 \| Whiteout FR-S \| Form Follows Function Build\|

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09-27-2015, 12:09 AM	#2
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,998 Thanks: 1,035 Thanked 4,987 Times in 2,981 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Their is sod all power in intakes over a drop in filter and cut off snorkel.

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