HKS New Stroker Kit and Evasive Motorsports Engine Build - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mike the snake · 05-14-2014, 10:37 PM

What are "crushed ice" connecting rods?

Tradewind · 05-14-2014, 10:42 PM

The stroker kit takes you from 2.0 - to 2.1 ..... a capacity gain of 100cc? Probably easier to just go another 2psi of boost lol

kelee · 05-14-2014, 10:49 PM

Why was the smaller M8 con rod bolt used? subaru beefed it up to M9.5 intentionally to handle the pressure at 7000 rpm speeds.

at least that's what the FA20 D4S development paper in the injection thread sticky says.

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xwd · 05-14-2014, 11:29 PM

Quote:

Originally Posted by mike the snake

What are "crushed ice" connecting rods?

Poor translation of cracked rod caps?

I guess the more interesting thing to me is the cams, not so sure about a longer stroke to get .1L of displacement.

JerryMichaels7 · 05-14-2014, 11:48 PM

were are people getting 2.2 max and that is rounding up I guess? Because every calculator I use says 90mm stroke 90 mm bore = 2.27 liters so almost 2.3

kelee · 05-15-2014, 04:17 AM

Quote:

Originally Posted by JerryMichaels7

were are people getting 2.2 max and that is rounding up I guess? Because every calculator I use says 90mm stroke 90 mm bore = 2.27 liters so almost 2.3

because it's 86x90

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JerryMichaels7 · 05-15-2014, 08:19 AM

someone mentioned in another thread with the same kit at 90x90 it was still barely 2.2, I know that stock its 86x86

xwd · 05-15-2014, 12:55 PM

Quote:

Originally Posted by JerryMichaels7

were are people getting 2.2 max and that is rounding up I guess? Because every calculator I use says 90mm stroke 90 mm bore = 2.27 liters so almost 2.3

There was some conjecture a long time ago they were working on a 2.2L stroker kit. Well as you can see, it's a 2.1L stroker kit. Now if someone wanted to pair their parts with some custom pistons using a larger bore, then you would see >2.1L. 90mm is a lot to overbore in this engine, I don't think it would really work well especially with a 90mm stroke.

Evasive Motorsports · 05-15-2014, 01:37 PM

Should be cracking not crushed ice. Poor translation from HKS haha.

cdrazic93 · 05-15-2014, 02:03 PM

I was reading an article the other day about an FA20 tear down, they seemed to notice it's a pretty tight fit for those stock cams, so fitting any kind of significantly larger lobed cams would probably run into interference issues.
http://www.revvolution.com/blog/2014...amp-amp-4u-gse

Now to get a lil' more off topic...this badass RC car will definitely tickle the pickle.
http://www.carthrottle.com/record-br...r-porsche-911/

Evasive Motorsports · 06-06-2014, 09:07 PM

6/6/14 UPDATE
Finally got the motor and size to the piston bore. Measured the rings gaps and time to start assemble the motor with the new HKS billet crankshaft.

D K · 06-06-2014, 09:34 PM

Question

This is abviously an FB25 crank. Has HKS done any additional prep to the crank? Shot Peening, nitride, cryo?

D

Staf00 · 06-15-2014, 03:02 AM

Any updates?

Evasive Motorsports · 06-15-2014, 03:51 AM

Quote:

Originally Posted by Staf00

Any updates?

Two more weeks till Pikes Peak, we have just finished the shims for the cams. HKS 2.1L stroker with cams and Ferrea valvetrain for the Evasive Pikes Peak FRS. We need all the torque we can get for the climb!

05-14-2014, 10:42 PM	#44
Tradewind Senior Member Join Date: Feb 2012 Drives: 2006 Subaru Liberty EZ30 S/charged Location: Cairns, Qld, Australia Posts: 291 Thanks: 0 Thanked 53 Times in 40 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The stroker kit takes you from 2.0 - to 2.1 ..... a capacity gain of 100cc? Probably easier to just go another 2psi of boost lol __________________ Toyota 86 test driver Last edited by Tradewind; 05-14-2014 at 10:57 PM.

05-14-2014, 11:48 PM	#47
JerryMichaels7 Senior Member Join Date: Mar 2013 Drives: Whiteout FRS Location: South, Ga Posts: 348 Thanks: 19 Thanked 144 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	were are people getting 2.2 max and that is rounding up I guess? Because every calculator I use says 90mm stroke 90 mm bore = 2.27 liters so almost 2.3 __________________ life's greatest stories usually start with the words, "fuck it!".

05-15-2014, 08:19 AM	#49
JerryMichaels7 Senior Member Join Date: Mar 2013 Drives: Whiteout FRS Location: South, Ga Posts: 348 Thanks: 19 Thanked 144 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	someone mentioned in another thread with the same kit at 90x90 it was still barely 2.2, I know that stock its 86x86 __________________ life's greatest stories usually start with the words, "fuck it!".

05-15-2014, 02:03 PM	#52
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	I was reading an article the other day about an FA20 tear down, they seemed to notice it's a pretty tight fit for those stock cams, so fitting any kind of significantly larger lobed cams would probably run into interference issues. http://www.revvolution.com/blog/2014...amp-amp-4u-gse Now to get a lil' more off topic...this badass RC car will definitely tickle the pickle. http://www.carthrottle.com/record-br...r-porsche-911/ __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

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05-14-2014, 10:37 PM	#43
mike the snake Senior Member Join Date: Jul 2013 Drives: 2013 BRZ Location: Norcal Posts: 1,592 Thanks: 1 Thanked 623 Times in 378 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	What are "crushed ice" connecting rods?

05-14-2014, 10:49 PM	#45
kelee Member Join Date: Apr 2014 Drives: RX350 Location: United States Posts: 32 Thanks: 1 Thanked 8 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Why was the smaller M8 con rod bolt used? subaru beefed it up to M9.5 intentionally to handle the pressure at 7000 rpm speeds. at least that's what the FA20 D4S development paper in the injection thread sticky says. Sent from my iPhone using Tapatalk

06-06-2014, 09:34 PM	#54
D K Stig's dark passenger Join Date: Dec 2013 Drives: FR-S Location: I work abroad Posts: 724 Thanks: 60 Thanked 316 Times in 186 Posts Mentioned: 20 Post(s) Tagged: 1 Thread(s)	Question This is abviously an FB25 crank. Has HKS done any additional prep to the crank? Shot Peening, nitride, cryo? D

06-15-2014, 03:02 AM	#55
Staf00 Banned Join Date: Mar 2013 Drives: SWP DZE Location: SoCal Posts: 31 Thanks: 12 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Any updates?

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