Crawford Billet Power Blocks - Page 57 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Papi · 08-18-2015, 12:23 PM

So with the blocks installed and no remapping( if that's the correct term) of the computer. Is the car still emision legal?

Papi · 08-18-2015, 07:10 PM

Quote:

Originally Posted by Papi

So with the blocks installed and no remapping( if that's the correct term) of the computer. Is the car still emision legal?

Anybody???????

juliog · 08-18-2015, 07:35 PM

Technically, in CA, no —any modifications to intake and exhaust systems are prohibited. In practice, I doubt any officer would notice the slightly raised intake manifold and send you to the ref for it.

Sleepless · 08-18-2015, 07:59 PM

Might want to paint them black on the outside

Sleepless · 08-18-2015, 08:05 PM

I had these installed by @Drift-Office last week with a custom tune and acceleration at the race track was slightly faster; very slightly and mainly in 4th and 5th. So, IMO, not a worthwhile mod.

My other mods are OFH, drop-in filter, Mishimoto intake tube, Perrin OP and resonated 2.5" exhaust.

FTemplar · 08-19-2015, 08:07 AM

Quote:

Originally Posted by Sleepless

I had these installed by @Drift-Office last week with a custom tune and acceleration at the race track was slightly faster; very slightly and mainly in 4th and 5th. So, IMO, not a worthwhile mod.

My other mods are OFH, drop-in filter, Mishimoto intake tube, Perrin OP and resonated 2.5" exhaust.

I think I remember reading that this mod is good for untuned cars

sidesleeper · 11-09-2015, 02:19 PM

ah, finally proof in data from another thread of what I've been saying.

That using power blocks drops your top end power.

http://www.ft86club.com/forums/showp...2&postcount=10

FTemplar · 11-09-2015, 02:21 PM

I don't think anyone ever contested that. From my understanding it shifts the power band to the left ..

Sent from my MotoG3 using Tapatalk

FRSBRZGT86FAN · 01-13-2016, 02:14 PM

Quote:

Originally Posted by FTemplar

I don't think anyone ever contested that. From my understanding it shifts the power band to the left ..

Sent from my MotoG3 using Tapatalk

Quote:

Originally Posted by sidesleeper

ah, finally proof in data from another thread of what I've been saying.

That using power blocks drops your top end power.

http://www.ft86club.com/forums/showp...2&postcount=10

Yea, I think everyone agreed that these cause top end loss, Crawford just never mentioned that when these came out. But with the OFT tune modified according to shivs instructions you only lose 1-2 hp up top but get 10-15 hp near the torque dip.

swarb · 01-13-2016, 02:56 PM

Quote:

Originally Posted by sidesleeper

ah, finally proof in data from another thread of what I've been saying.

That using power blocks drops your top end power.

http://www.ft86club.com/forums/showp...2&postcount=10

That is supercharged. It is different.

FRSBRZGT86FAN · 01-18-2016, 12:12 AM

Quote:

Originally Posted by sidesleeper

I also had the same results.

They heat soak. Power drops off up top with them installed hot or cold.

I took them off and sold them to the next sucker.

Quote:

Originally Posted by Jmonty

They seemed to heat soak, different days butIi made more power without. I don't have before and after dyno to compare side by side, when I pulled them off I also added the oil cooler

Did the heat soak only occur with the supercharger or in general? Or maybe quicker with the jrsc?

FRSBRZGT86FAN · 01-18-2016, 12:29 AM

Quote:

Originally Posted by FTemplar

I think I remember reading that this mod is good for untuned cars

Yea, but if you actually tune it "you can have your cake and eat it too" because instead of losing all the power up top you only lose 1-3 hp

jaorocks1 · 01-18-2016, 02:07 PM

Do these really heat soak? Did someone take tests of it? I thought all it did was shift the powerband to the left?

Jmonty · 01-18-2016, 05:01 PM

Quote:

Originally Posted by FRSBRZGT86FAN

Did the heat soak only occur with the supercharger or in general? Or maybe quicker with the jrsc?

In general after repeated pulls. But it was much worse with the JRSC

08-18-2015, 07:59 PM	#788
Sleepless Senior Member Join Date: Apr 2014 Drives: 2014 BRZ Location: Redmond, WA Posts: 639 Thanks: 299 Thanked 392 Times in 229 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Might want to paint them black on the outside __________________ Pete 14 Track BRZ (Build Thread) cmslaptimer.com

08-18-2015, 08:05 PM	#789
Sleepless Senior Member Join Date: Apr 2014 Drives: 2014 BRZ Location: Redmond, WA Posts: 639 Thanks: 299 Thanked 392 Times in 229 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	I had these installed by @Drift-Office last week with a custom tune and acceleration at the race track was slightly faster; very slightly and mainly in 4th and 5th. So, IMO, not a worthwhile mod. My other mods are OFH, drop-in filter, Mishimoto intake tube, Perrin OP and resonated 2.5" exhaust. __________________ Pete 14 Track BRZ (Build Thread) cmslaptimer.com

01-18-2016, 02:07 PM	#797
jaorocks1 Senior Member Join Date: Jun 2014 Drives: 92 Prelude Location: San Diego Posts: 267 Thanks: 8 Thanked 60 Times in 33 Posts Mentioned: 2 Post(s) Tagged: 2 Thread(s)	Do these really heat soak? Did someone take tests of it? I thought all it did was shift the powerband to the left? __________________ Www.PublicMvmnt.bigcartel.com My FRS Review: http://www.ft86club.com/forums/showthread.php?t=71746 My FRS build: http://www.ft86club.com/forums/showt...02#post2115402

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08-18-2015, 12:23 PM	#785
Papi Member Join Date: Jun 2015 Drives: Crystal White Silica BRZ Limited Location: Marysville, WA Posts: 65 Thanks: 2 Thanked 3 Times in 3 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	So with the blocks installed and no remapping( if that's the correct term) of the computer. Is the car still emision legal?

11-09-2015, 02:19 PM	#791
sidesleeper Member Join Date: Mar 2015 Drives: BRZ series blue Location: Villa Park, IL Posts: 29 Thanks: 1 Thanked 26 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	ah, finally proof in data from another thread of what I've been saying. That using power blocks drops your top end power. http://www.ft86club.com/forums/showp...2&postcount=10

11-09-2015, 02:21 PM	#792
FTemplar Senior Member Join Date: Dec 2014 Drives: BRZ Sport-tech 2013 Location: Quebec. Canada Posts: 146 Thanks: 70 Thanked 185 Times in 57 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I don't think anyone ever contested that. From my understanding it shifts the power band to the left .. Sent from my MotoG3 using Tapatalk

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