follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-29-2014, 04:58 PM   #29
Captain Insano
Senior Member
 
Join Date: Sep 2012
Drives: 2014 Jeep Wrangler RubiconX
Location: Midwest, USA
Posts: 1,282
Thanks: 110
Thanked 292 Times in 224 Posts
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
OP are you doing lighter internals or higher compression ratio? If so any ideas yet what weight and compression ratio?
Captain Insano is offline   Reply With Quote
Old 04-29-2014, 07:27 PM   #30
EN2_Squirrel
Senior Member
 
EN2_Squirrel's Avatar
 
Join Date: Aug 2012
Drives: 2013 FR-S
Location: San Diego
Posts: 300
Thanks: 180
Thanked 58 Times in 46 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
sub'd. Also I am looking in a N/A build mostly for scca solo Street Modified stuff. Was curious about cost obviously and whether parts were lightened(not legal in SM) but better balanced? Higher comperssion pistons, larger cams, tougher valvetrain, and usual 200whp bolt-ons running e85 and tune. I figure 250whp seems reasonable. thats my plan anyway after deployment.
EN2_Squirrel is offline   Reply With Quote
Old 04-29-2014, 07:28 PM   #31
supradoopra
Banned
 
Join Date: Apr 2014
Drives: frs
Location: new york
Posts: 21
Thanks: 16
Thanked 3 Times in 3 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
nice. im tuned in for more
supradoopra is offline   Reply With Quote
Old 04-29-2014, 08:44 PM   #32
celek
Resident Gear Head
 
celek's Avatar
 
Join Date: Nov 2012
Drives: 2013 BRZ
Location: Ohio
Posts: 734
Thanks: 264
Thanked 914 Times in 339 Posts
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Captain Insano View Post
OP are you doing lighter internals or higher compression ratio? If so any ideas yet what weight and compression ratio?
Yes and Yes
A few things to figure our with the combustion chambers with a 3.5mm larger bore.

Weight unknown nothing extremely exotic in material though
__________________
celek is offline   Reply With Quote
The Following User Says Thank You to celek For This Useful Post:
Captain Insano (04-29-2014)
Old 04-29-2014, 08:46 PM   #33
Turdinator
Seņor Member
 
Turdinator's Avatar
 
Join Date: Aug 2012
Drives: 86 GT/'74 TA22 Celica/Kangaroo
Location: Melbourne, Australia
Posts: 1,706
Thanks: 1,104
Thanked 764 Times in 478 Posts
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Garage
Are you looking into improving the rod/stroke ratio with longer rods or is it not a concern for you?
__________________
1974 TA22 Celica
2013 86 GT
Turdinator is offline   Reply With Quote
Old 04-30-2014, 02:04 AM   #34
Snake
Senior Member
 
Join Date: Dec 2012
Drives: ADM Toyota 86 GT
Location: Australia
Posts: 117
Thanks: 32
Thanked 63 Times in 37 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
So those sleeves will bore it out to 2.2ltr? 89.5mm x 86mm = approximate 2.2ltr.
Snake is offline   Reply With Quote
Old 04-30-2014, 08:40 AM   #35
ML
Senior Member
 
ML's Avatar
 
Join Date: Sep 2012
Drives: 13 White MT FR-S
Location: Gastonia, NC
Posts: 1,836
Thanks: 974
Thanked 1,121 Times in 518 Posts
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Snake View Post
So those sleeves will bore it out to 2.2ltr? 89.5mm x 86mm = approximate 2.2ltr.
From Darton Sleeves page

"New Scion FRS / Subaru BRZ / Toyota 86 / Toyota GT86 MID sleeve kit now available. Comes semi-finished for stock bore size of 86mm and has a max bore size of 90mm. Sleeves can easily handle 50+ psi of boost at any bore size."
__________________


Build Thread https://www.instagram.com/mount_tele_lion/
Quote:
Originally Posted by Symbiont View Post
I swear I will punch your car if you put these on. Right in the face.
ML is offline   Reply With Quote
The Following User Says Thank You to ML For This Useful Post:
CxG (10-25-2015)
Old 04-30-2014, 03:14 PM   #36
brn12345
Senior Member
 
brn12345's Avatar
 
Join Date: Oct 2012
Drives: BRZ
Location: Bahrain
Posts: 254
Thanks: 101
Thanked 137 Times in 63 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
For an NA build bigger bore usually brings with it lower detonation threshold. Careful planning needed otherwise power gain with displacement would be lost to knock resistance.
__________________
2013 Lightning Red - 6MT
Perrin Inlet Hose ~ TRD Panel Air Filter ~ OEM Modified Snorkel ~ Revolution 4-2-1 EL Header ~ HKS Resonated Front Pipe ~ BRZedit self tune ~ KW Clubsport Coilovers ~ AP Racing Big Brake 4 Piston ~ Whiteline Front Endlinks ~ Perrin Rear Endlinks ~ WedsSport TC105N 17x8 42+ ~Dunlop Direzza II Star Spec 225/45/17 ~ STI Trunk Lid Spoiler
brn12345 is offline   Reply With Quote
Old 04-30-2014, 05:04 PM   #37
ZeHeadBanger
Stuck like Glue
 
ZeHeadBanger's Avatar
 
Join Date: Jul 2013
Drives: WRB BRZ Limited
Location: Farmington Hills, MI
Posts: 100
Thanks: 49
Thanked 19 Times in 12 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
This is definitely going to be super interesting. I'm personally a fan of NA motors and hopefully this thread should be a good learning experience for me!

Subscribed!
ZeHeadBanger is offline   Reply With Quote
Old 04-30-2014, 08:26 PM   #38
Snake
Senior Member
 
Join Date: Dec 2012
Drives: ADM Toyota 86 GT
Location: Australia
Posts: 117
Thanks: 32
Thanked 63 Times in 37 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
With the increased bore, HKS's stroker kit might come in handy to bring it to 90mm x 90mm and 2.3ltr. Would certainly give it some more torque!
Snake is offline   Reply With Quote
Old 04-30-2014, 10:05 PM   #39
celek
Resident Gear Head
 
celek's Avatar
 
Join Date: Nov 2012
Drives: 2013 BRZ
Location: Ohio
Posts: 734
Thanks: 264
Thanked 914 Times in 339 Posts
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Garage
There is a small problem with a 90 mm bore.
This problem is that there is not gasket manufacture that makes a gasket larger than 89.5mm.
As for stroke I have something special planned for the crank. I will know once it is looked over. and it will be cheaper than HKS
__________________
celek is offline   Reply With Quote
Old 04-30-2014, 10:07 PM   #40
celek
Resident Gear Head
 
celek's Avatar
 
Join Date: Nov 2012
Drives: 2013 BRZ
Location: Ohio
Posts: 734
Thanks: 264
Thanked 914 Times in 339 Posts
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by Turdinator View Post
Are you looking into improving the rod/stroke ratio with longer rods or is it not a concern for you?
If I stayed with the stock stroke I could get the rod ratio somewhere around 1.58:1 instead of stock at 1.50
__________________
celek is offline   Reply With Quote
The Following User Says Thank You to celek For This Useful Post:
Turdinator (05-01-2014)
Old 05-01-2014, 09:47 AM   #41
w00t692
Senior Member
 
Join Date: Oct 2013
Drives: 2008 Civic Si
Location: United States
Posts: 111
Thanks: 7
Thanked 29 Times in 24 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
It would be absolutely pointless for him to do an n/a build with heavier than stock components. rods and pistons are probably going to be 100-200 grams lighter than stock each. He'll have amazingly better rev limits and carry power better.
w00t692 is offline   Reply With Quote
The Following User Says Thank You to w00t692 For This Useful Post:
celek (05-01-2014)
Old 05-01-2014, 01:04 PM   #42
stevo585
Senior Member
 
Join Date: Feb 2014
Drives: White 2014 BRZ
Location: Orlando, FL.
Posts: 519
Thanks: 131
Thanked 155 Times in 109 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Think about motorcycle engines (not harleys). They all are big bore, short stroke with individual throttle bodies. This allows for more airflow, bigger valves, and high rpms. This is what you need to make big NA power.
stevo585 is offline   Reply With Quote
 
Reply

Tags
2.3ltr, all motor, helpful, hks, hks stroker, informative, na brz

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Beginner STX Build Whiteout FRS Build Thread Hachi86Roku Tracking / Autocross / HPDE / Drifting 21 03-31-2020 07:52 PM
Ultimate coilover thread, What do you run on your car? got REVIEWS post it up! THMotorsports.com Suspension | Chassis | Brakes -- Sponsored by 949 Racing 0 12-11-2013 05:25 PM
The *ULTIMATE* Exhaust Thread by ECS Motorsports! | Over 2 Dozen Options! + FREE S&H! AJ@ECSMotorsports Engine, Exhaust, Bolt-Ons 27 09-05-2013 09:14 AM
*--->>ULTIMATE COILOVER THREAD<<---* The Best Deals + Free Shipping FT-86 SpeedFactory Brakes, Suspension, Chassis 95 01-30-2013 07:48 PM
Who's in for the long haul? Laika BRZ First-Gen (2012+) -- General Topics 47 07-09-2012 09:48 AM


All times are GMT -4. The time now is 05:40 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.