So what's your real plan for this car? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ddoouugg · 01-21-2010, 11:16 AM

^rice man has arrived

Axel · 01-21-2010, 12:12 PM

Quote:

Originally Posted by ddoouugg

^rice man has arrived

he won't be the last... LOL

who knows...maybe 1/3+ of the owners will rice these?

NESW20 · 01-21-2010, 02:25 PM

*facepalm*

-Mike

OldSkoolToys · 01-21-2010, 04:09 PM

something similar to this

Midship Runabout · 01-21-2010, 04:34 PM

So who is gonna make the first lifted 4x4 ft86?

not it!

Lexicon101 · 01-21-2010, 10:18 PM

=/
Well.. I plan on keeping it pretty stock.. maybe roll bars, coilovers, and MAYBE an open exhaust... after warranty's up.

Siriusly.Andrew · 01-21-2010, 10:45 PM

May I ask how a 2.0L NA engine could benefit from a 2.5" exhaust or larger?

I thought back pressure would be excessive after 2.5" and cause a drop in performance? This is just what I've heard, I really should research to make sure I'm not folly on info...
I mean, stock 6.0L Turbo Diesel's have 3.0" exhausts...

Instruct me please!

Lexicon101 · 01-21-2010, 10:52 PM

I don't plan on this being N/A. If it doesn't come with a factory turbo, I'm puttin one on it.

Siriusly.Andrew · 01-21-2010, 10:55 PM

and then a larger exhaust would be necessary -- as Turbo's are spooled from exhausts.
How large would be acceptable / required for a 2.0T?

NESW20 · 01-21-2010, 11:13 PM

with turbos, the bigger the better.

n/a will suffer somewhat from too large of an exhaust piping diameter. as piping diameter increases, backpressure decreases. backpressure is NEVER sought after; only exhaust velocity, which has the unfortunate side effect of backpressure. it's the low-rpm port velocity produced by smaller-diameter exhausts that helps to create nice torque curves, not the associated backpressure.

that's the reason why people generally (and mistakenly) think that backpressure is good for n/a engines. that's why on anything except a race car, you don't want to go too large with an n/a exhaust.

-Mike

Siriusly.Andrew · 01-21-2010, 11:18 PM

Benefit of back pressure in an NA setup?

I just read (found a post about different exhausts setups eg, True Dual vs Crossover VS Single) about crossover exhausts and those seem to benefit a motor slightly, and making the exhaust note a little milder and to me, nicer.

I thought 0 back pressure was good, so there was no resistance or disturbance in the exhaust flow (velocity)?

Im happy you explained this a little for me. Could you give examples? Like proposed max size of the NA 2.0L FT-86 motor?

YourFearlessLeader · 01-21-2010, 11:55 PM

Max Size 2.25 IMO

DanZilla · 01-22-2010, 05:28 PM

just gonna track it oem at first and then build from there

jay4prez · 01-22-2010, 05:42 PM

This beauty will replace my DD Celica, as far as anything else I rather keep it spontaneous and work on what needs to as I determine what needs to be upgraded to suit my preferences

01-21-2010, 02:25 PM	#31
NESW20 2.1L 3SGTE Join Date: Oct 2009 Drives: MR2 Turbo & Tacoma Location: Columbus, IN Posts: 1,248 Thanks: 29 Thanked 24 Times in 22 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	facepalm -Mike __________________ 1991 MR2 Turbo - 2.1L high compression stroker 3SGTE 2006 Tacoma 4x4 TRD Off Road - All-Pro front bumper, Old Man Emu shocks, Old Man Emu HD front coils, All-Pro leafs 1990 240SX Coupe - sold 2008 Civic Si Sedan

01-21-2010, 11:13 PM	#38
NESW20 2.1L 3SGTE Join Date: Oct 2009 Drives: MR2 Turbo & Tacoma Location: Columbus, IN Posts: 1,248 Thanks: 29 Thanked 24 Times in 22 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	with turbos, the bigger the better. n/a will suffer somewhat from too large of an exhaust piping diameter. as piping diameter increases, backpressure decreases. backpressure is NEVER sought after; only exhaust velocity, which has the unfortunate side effect of backpressure. it's the low-rpm port velocity produced by smaller-diameter exhausts that helps to create nice torque curves, not the associated backpressure. that's the reason why people generally (and mistakenly) think that backpressure is good for n/a engines. that's why on anything except a race car, you don't want to go too large with an n/a exhaust. -Mike __________________ 1991 MR2 Turbo - 2.1L high compression stroker 3SGTE 2006 Tacoma 4x4 TRD Off Road - All-Pro front bumper, Old Man Emu shocks, Old Man Emu HD front coils, All-Pro leafs 1990 240SX Coupe - sold 2008 Civic Si Sedan

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Siriusly.Andrew Senior Member Join Date: Oct 2009 Drives: 1995 Civic DX Location: Fort St. John BC CAN Posts: 557 Thanks: 0 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	May I ask how a 2.0L NA engine could benefit from a 2.5" exhaust or larger? I thought back pressure would be excessive after 2.5" and cause a drop in performance? This is just what I've heard, I really should research to make sure I'm not folly on info... I mean, stock 6.0L Turbo Diesel's have 3.0" exhausts... Instruct me please!

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Lexicon101 Inexperienced Join Date: Jan 2010 Drives: Crappy old '90 civic. Frankie. Location: In the club Posts: 622 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I don't plan on this being N/A. If it doesn't come with a factory turbo, I'm puttin one on it.

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Siriusly.Andrew Senior Member Join Date: Oct 2009 Drives: 1995 Civic DX Location: Fort St. John BC CAN Posts: 557 Thanks: 0 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	and then a larger exhaust would be necessary -- as Turbo's are spooled from exhausts. How large would be acceptable / required for a 2.0T?

01-21-2010, 11:18 PM	#39
Siriusly.Andrew Senior Member Join Date: Oct 2009 Drives: 1995 Civic DX Location: Fort St. John BC CAN Posts: 557 Thanks: 0 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Benefit of back pressure in an NA setup? I just read (found a post about different exhausts setups eg, True Dual vs Crossover VS Single) about crossover exhausts and those seem to benefit a motor slightly, and making the exhaust note a little milder and to me, nicer. I thought 0 back pressure was good, so there was no resistance or disturbance in the exhaust flow (velocity)? Im happy you explained this a little for me. Could you give examples? Like proposed max size of the NA 2.0L FT-86 motor?

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