HKS Premium Day 2013: FA20 stroker kit and cams - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Coheed · 02-13-2013, 01:04 PM

The cams aren't much larger than factory, but they are likely designed to utilize the different piston speeds of the stroker kit. That would make sense. But the aftermarket should have cams out soon that will not lose any power anywhere appreciable, and help hold the top end a little better.

12mm lift and around 270* duration should do quite well with the high compression. A higher duration cam with less aggressive ramp profiles can probably rev quite well on the stock valvetrain as well.

Levi · 02-13-2013, 05:39 PM

What I would like is increased compression, same capacity, more power/torque at high revs, don't care about low revs, "because race car".

86drift · 02-13-2013, 06:14 PM

I'm guessing the cams are for a turbo engine.
Because otherwise why would you bother changing them for such a small change in duration. I'm waiting for 280+ to be released.

bunny86 · 02-26-2013, 05:58 AM

Apparently when testing a possible bore increase they found that there was not enough margin to do this safely, hence the stroker kit only.

JP · 02-26-2013, 06:31 AM

thats what darton sleeves are for

Turbowned · 03-21-2013, 12:01 PM

^^ This. ^^ I would love to see a 2.2L stroker. I have difficulty justifying the cost of rebuilding an engine with all those parts for a measly increase in displacement. For example, I could spend $4k on a 7AG stroker kit for my MR2, which increases displacement to 1900cc using a 7A-FE block and 4A-GE head. Or I could just get forged pistons and rods for the 7A block and still have ~1850cc for about $1k.

*KID* · 03-21-2013, 01:57 PM

I would love to see some cams making peak power up to 220Hp.That be nice and hearing the cam notes on the exhaust exit

FAER · 03-25-2013, 12:47 AM

bore and stroke for a 2.4 OR AT LEAST 2.3 PLEASE...

Lonewolf · 06-28-2013, 07:36 PM

Any updates on this?

cf6mech · 06-29-2013, 04:58 AM

This engine will see a lot of development,....just stand bye.

NYCsubaruBRZ · 07-01-2013, 03:37 AM

???
What else is there to keep this car NA and get the most power besides this stroker kit, a tune, pulleys, intake, exhaust, downpipe, light weight rims, light weight flywheel, ditch junk in trunk, carbon drive shaft, bigger throttle body, headers, dry carbon exterior parts, light weight battery.

am i missing anything to make this car faster in a straight line?

i cant seem to find any other parts to make power

Hanakuso · 07-01-2013, 03:41 AM

Quote:

Originally Posted by NYCsubaruBRZ

???
What else is there to keep this car NA and get the most power besides this stroker kit, a tune, pulleys, intake, exhaust, downpipe, light weight rims, light weight flywheel, ditch junk in trunk, carbon drive shaft, bigger throttle body, headers, dry carbon exterior parts, light weight battery.

am i missing anything to make this car faster in a straight line?

i cant seem to find any other parts to make power

Final drive

NYCsubaruBRZ · 07-02-2013, 03:54 AM

Quote:

Originally Posted by Hanakuso

Final drive

so not much for NA right now

Turdinator · 07-31-2013, 02:05 AM

Quote:

Originally Posted by NYCsubaruBRZ

Quote:

Originally Posted by Hanakuso

Final drive

so not much for NA right now

Have a look HERE

(sorry to bring up an old thread, was looking for it for another reason then saw this post)

03-21-2013, 01:57 PM	#21
KID 86-er Join Date: May 2012 Drives: BRZ tS Location: Laredo, TX Posts: 970 Thanks: 195 Thanked 253 Times in 175 Posts Mentioned: 3 Post(s)	I would love to see some cams making peak power up to 220Hp.That be nice and hearing the cam notes on the exhaust exit __________________ 2018 Subaru BRZ ts 020/500 - My Daily, work car, and track car

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02-13-2013, 01:04 PM	#15
Coheed Senior Member Join Date: Jun 2012 Drives: DGM BRZ Limited Location: Seattle Posts: 813 Thanks: 209 Thanked 225 Times in 157 Posts Mentioned: 1 Post(s)	The cams aren't much larger than factory, but they are likely designed to utilize the different piston speeds of the stroker kit. That would make sense. But the aftermarket should have cams out soon that will not lose any power anywhere appreciable, and help hold the top end a little better. 12mm lift and around 270* duration should do quite well with the high compression. A higher duration cam with less aggressive ramp profiles can probably rev quite well on the stock valvetrain as well.

02-13-2013, 05:39 PM	#16
Levi Senior Member Join Date: May 2011 Drives: Toyota Location: Germany Posts: 1,202 Thanks: 134 Thanked 138 Times in 90 Posts Mentioned: 5 Post(s)	What I would like is increased compression, same capacity, more power/torque at high revs, don't care about low revs, "because race car".

02-13-2013, 06:14 PM	#17
86drift Join Date: Jun 2012 Drives: Toyota 86 GT Location: Sydney, Australia Posts: 517 Thanks: 85 Thanked 263 Times in 147 Posts Mentioned: 24 Post(s)	I'm guessing the cams are for a turbo engine. Because otherwise why would you bother changing them for such a small change in duration. I'm waiting for 280+ to be released.

02-26-2013, 05:58 AM	#18
bunny86 Senior Member Join Date: Dec 2011 Drives: Starlet Location: UK Posts: 122 Thanks: 29 Thanked 24 Times in 18 Posts Mentioned: 0 Post(s)	Apparently when testing a possible bore increase they found that there was not enough margin to do this safely, hence the stroker kit only.

02-26-2013, 06:31 AM	#19
JP Backyard Fabricator Join Date: May 2012 Drives: JZX83, SF5 GT, ZZE82 turbo Location: Australia Posts: 303 Thanks: 47 Thanked 166 Times in 83 Posts Mentioned: 40 Post(s)	thats what darton sleeves are for

03-25-2013, 12:47 AM	#22
FAER Banned Join Date: Mar 2013 Drives: Silver BRZ Location: Texas Posts: 361 Thanks: 22 Thanked 118 Times in 86 Posts Mentioned: 10 Post(s)	bore and stroke for a 2.4 OR AT LEAST 2.3 PLEASE...

06-28-2013, 07:36 PM	#23
Lonewolf Senior Member Join Date: Dec 2011 Drives: Moped Location: CA Posts: 4,300 Thanks: 4,905 Thanked 2,132 Times in 1,195 Posts Mentioned: 21 Post(s)	Any updates on this?

06-29-2013, 04:58 AM	#24
cf6mech Senior Member Join Date: Sep 2012 Drives: FRS Silver LS1 swapped. Location: Texas Posts: 752 Thanks: 621 Thanked 766 Times in 302 Posts Mentioned: 39 Post(s)	This engine will see a lot of development,....just stand bye.

07-01-2013, 03:37 AM	#25
NYCsubaruBRZ Banned Join Date: Sep 2012 Drives: 2013 Subaru BRZ & 99' Ford Explorer Location: NYC Posts: 709 Thanks: 94 Thanked 87 Times in 66 Posts Mentioned: 4 Post(s)	??? What else is there to keep this car NA and get the most power besides this stroker kit, a tune, pulleys, intake, exhaust, downpipe, light weight rims, light weight flywheel, ditch junk in trunk, carbon drive shaft, bigger throttle body, headers, dry carbon exterior parts, light weight battery. am i missing anything to make this car faster in a straight line? i cant seem to find any other parts to make power

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