HKS New Stroker Kit and Evasive Motorsports Engine Build 2014 UPDATE 9/9/14 - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SmsAlSuwaidi · 05-07-2014, 03:51 PM

Quote:

Originally Posted by Jason@DSG

Here's the formula to calculate displacement:

(PI/4) x Bore2 x Stroke x Number Of Cylinders

So if we take the HKS Crank at 90mm and let's say add in 87mm pistons in a sleeved block application, our new displacement is:

0.7854 x 7569 x 90 x 4

= 2.14L

Going to 90mm pistons and sleeve is very risky and completely unnecessary. 87mm would be the absolute ideal and max here IMO

Wow 90mm, hell no !
Most id consider would be .5, and doubt it. Id rather coat/polish and do all those cool little things to the stock crank.

Sent from my IBrick

Jason@DSG · 05-07-2014, 04:17 PM

Sleeved overbore to 87mm, polished and balanced crank, built valvetrain good for 10,000rpm + T3 Turbo boooya. It's the winning combo for this car

That's 2.05L and high rev. A good turbo coming on around 4-5k rpm and going all the way to the end gives a good 5k rpm band, the extra 0.5L displacement will help the spool and low end a bit as well.

Just my two cents

jamesm · 05-07-2014, 04:57 PM

i think i read somewhere that this was a 2.2l kit. maybe on their japanese page iirc.

OrbitalEllipses · 05-07-2014, 05:02 PM

Quote:

Originally Posted by jamesm

i think i read somewhere that this was a 2.2l kit. maybe on their japanese page iirc.

That sounds familiar, but I've also more than once heard that over 2.12-2.15 might not work/be dangerous.

jamesm · 05-07-2014, 05:10 PM

here is the link http://www.pitnavi.com/hks2013. it's down near the middle towards the bottom under the picture. 90mm bore.

SmsAlSuwaidi · 05-07-2014, 05:21 PM

@Jason@DSG was right lol, he calculated it in the other thread. I think 90mm is too much

Edit: oh nvm its few posts above
Sent from my IBrick

D K · 05-07-2014, 06:04 PM

Can anyone confirm the stroke, or is this a wag?

*EDIT* looks like it is 90mm

So less than 4% displacement increase??

Anybody know the pin height or rod length?

D

Ge8rb6x · 05-10-2014, 04:23 AM

I am very interested in the release date, pricing & power numbers of this kit. I purchased my 86 with 500hp in mind. If somebody from either Evasive or HKS could shed some light on this it would be greatly appreciated

Walldodger · 05-10-2014, 06:57 AM

Quote:

Originally Posted by SmsAlSuwaidi

well, hit me up when you guys take pre orders. Lets hope this comes close to previous hks stroker kits such as their 3.4l 2j kit.

I would also like to preorder a 3.2l FA20 kit please.

kelee · 05-10-2014, 04:27 PM

can we see a side by side comparison with the OEM rods?

Sent from my iPhone using Tapatalk

SmsAlSuwaidi · 05-10-2014, 11:38 PM

Quote:

Originally Posted by Walldodger

I would also like to preorder a 3.2l FA20 kit please.

Lol ?

Sent from my IBrick

fooddude · 05-11-2014, 12:07 AM

wowza wowza wowza!

Evasive Motorsports · 05-14-2014, 06:12 PM

Specs are listed

empower-auto · 05-14-2014, 06:39 PM

HKS has no idea what they doing. totes obvs gais

05-07-2014, 05:21 PM	#34
SmsAlSuwaidi Boosted Join Date: Feb 2013 Drives: Not a supra....yet Location: Riverside,CA/ Abu Dhabi,UAE Posts: 2,925 Thanks: 487 Thanked 1,203 Times in 812 Posts Mentioned: 90 Post(s)	HKS New Stroker Kit and Evasive Motorsports Engine Build @Jason@DSG was right lol, he calculated it in the other thread. I think 90mm is too much Edit: oh nvm its few posts above Sent from my IBrick __________________ https://www.facebook.com/Smsalsuwaidiracing/

05-07-2014, 06:04 PM	#35
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)	Can anyone confirm the stroke, or is this a wag? EDIT looks like it is 90mm So less than 4% displacement increase?? Anybody know the pin height or rod length? D Last edited by D K; 05-07-2014 at 06:26 PM.

05-14-2014, 06:39 PM	#42
empower-auto Kouki-Monster Join Date: May 2012 Drives: 2013 Scion FR-S Location: Saskatoon, SK Posts: 1,137 Thanks: 11 Thanked 562 Times in 261 Posts Mentioned: 6 Post(s)	HKS has no idea what they doing. totes obvs gais __________________ Rich Anderson EMPOWER AUTO

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05-07-2014, 04:17 PM	#30
Jason@DSG Senior Member Join Date: Sep 2013 Drives: 1997 Eagle Talon TSi AWD Location: US/Canada Posts: 2,146 Thanks: 589 Thanked 431 Times in 266 Posts Mentioned: 42 Post(s)	Sleeved overbore to 87mm, polished and balanced crank, built valvetrain good for 10,000rpm + T3 Turbo boooya. It's the winning combo for this car That's 2.05L and high rev. A good turbo coming on around 4-5k rpm and going all the way to the end gives a good 5k rpm band, the extra 0.5L displacement will help the spool and low end a bit as well. Just my two cents

05-07-2014, 04:57 PM	#31
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,294 Times in 1,180 Posts Mentioned: 313 Post(s)	i think i read somewhere that this was a 2.2l kit. maybe on their japanese page iirc.

05-07-2014, 05:10 PM	#33
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,294 Times in 1,180 Posts Mentioned: 313 Post(s)	here is the link http://www.pitnavi.com/hks2013. it's down near the middle towards the bottom under the picture. 90mm bore.

05-10-2014, 04:23 AM	#36
Ge8rb6x Junior Member Join Date: Jun 2013 Drives: Ft-86 2013 Location: Perth Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s)	I am very interested in the release date, pricing & power numbers of this kit. I purchased my 86 with 500hp in mind. If somebody from either Evasive or HKS could shed some light on this it would be greatly appreciated

05-10-2014, 04:27 PM	#38
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)	can we see a side by side comparison with the OEM rods? Sent from my iPhone using Tapatalk

05-11-2014, 12:07 AM	#40
fooddude Banned Join Date: Dec 2013 Drives: 04 Toyota Tacoma Prerunner Reg Cab Location: LA > SF > NYC > OC Posts: 943 Thanks: 556 Thanked 268 Times in 200 Posts Mentioned: 6 Post(s)	wowza wowza wowza!

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