Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-27-2018, 03:33 PM   #11 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,756

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - CBR600 - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)

Model Y - '24 Tesla Y LR AWD

Pacifica Hybrid - '21 Chrysler Pacifica Hybrid
90 day: 57.45 mpg (US)
Thanks: 4,317
Thanked 4,472 Times in 3,437 Posts
Quote:
Originally Posted by Ecky View Post
Definitely planning on a custom 3.4 FD, even if it's $$$$. Even with that crazy tall gearing, it's still going to be geared shorter than the stock 1.0L.
Love my 2006 TSX. The only thing that could be improved on the car is taller gearing, better sound proofing, and a tighter turning radius (turns worse than a bus). Oh, and VTEC should activate sooner than 6k RPM. When shifting at the redline around 7k, the revs fall below VTEC activation so the engine is sluggish again until building back up to 6k. It should have been designed to activate at 5k.

How hard would it be to change out the FD? Would love to get the revs down. 1st gear is so low that I can't imagine the car being difficult or sluggish to drive with a taller FD. Too much torque off the line anyhow.

__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-27-2018, 03:40 PM   #12 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,077

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 54.69 mpg (US)
Thanks: 2,904
Thanked 2,560 Times in 1,586 Posts
Transmission needs to be drained and removed, of course.

I'll see if I can find any good how-to's later. It would be very helpful to me if someone went in on a group buy for some taller final drives. 3.4 might be too tall for you though; you'd probably be sub-2000rpm with your stock tire size at 65mph in top gear... or maybe that's a good thing? You'd practically have a "2 through 7" trans rather than 1-6.

EDIT: A custom super tall FD (3.4) requires a group buy and is probably going to come out to $1200. A slightly taller FD (4.108) is available here for $450. Of course, it's not as taller.

https://www.afhparts.com/oem-parts/h...=41233-RAP-000
https://www.afhparts.com/oem-parts/h...=23221-RAP-000
Source

Last edited by Ecky; 06-27-2018 at 04:03 PM..
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
redpoint5 (06-27-2018)
Old 06-27-2018, 04:03 PM   #13 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,077

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 54.69 mpg (US)
Thanks: 2,904
Thanked 2,560 Times in 1,586 Posts
Trying to decide.

3.4 FD, stock 165/65r14 tire size
2180rpm @ 65mph
1680rpm @ 50mph

3.4 FD, common 185/65r14 tire size
2085rpm @ 65mph
1605rpm @ 50mph

4.105 FD, stock tire size
2635rpm @ 65mph
2025rpm @ 50mph

4.105 FD, 185 tire size
2520rpm @ 65mph
1949rpm @ 50mph


Honda Insight 1.0L gearing - 3.208 final drive
2350rpm @ 65mph
1810rpm @ 50mph


I really think a 3.4 FD is a good idea, but it adds considerable cost to the build. I suppose the 4.105 wouldn't be the end of the world if I moved to a larger diameter tire too.
  Reply With Quote
Old 06-27-2018, 04:04 PM   #14 (permalink)
Master EcoModder
 
vskid3's Avatar
 
Join Date: Jun 2008
Location: Utah
Posts: 975

Civic DX (sold) - '97 Honda Civic DX
90 day: 34.15 mpg (US)

GTO (sold) - '04 Pontiac GTO
90 day: 22.62 mpg (US)

Green Brick (sold) - '06 Ford Escape Hybrid
90 day: 31.93 mpg (US)
Thanks: 193
Thanked 312 Times in 221 Posts
Why not put the engine in the back? Welcome to Mini Tec

I support this build. While Insight's stock drivetrains won't last forever, their bodies will, so why not have fun with all that lightness?
__________________


Camry Thread
E-Bike Thread
  Reply With Quote
Old 06-27-2018, 05:12 PM   #15 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,756

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - CBR600 - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)

Model Y - '24 Tesla Y LR AWD

Pacifica Hybrid - '21 Chrysler Pacifica Hybrid
90 day: 57.45 mpg (US)
Thanks: 4,317
Thanked 4,472 Times in 3,437 Posts
Quote:
Originally Posted by Ecky View Post
EDIT: A custom super tall FD (3.4) requires a group buy and is probably going to come out to $1200. A slightly taller FD (4.108) is available here for $450. Of course, it's not as taller.
I know the RSX has a taller FD, and was hoping there might be used parts for relatively cheap. I'm not willing to drop more than about $200 on the mod. 3.4 sounds too tall though, as I wouldn't want to start from a dead stop in 2nd gear. Something around 4.0 seems ideal for me.

__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 06-27-2018, 07:19 PM   #16 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,077

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 54.69 mpg (US)
Thanks: 2,904
Thanked 2,560 Times in 1,586 Posts
Send an email to Jeff Owen, at kiwi@specialprojectsms.com. He has some relatively inexpensive ~4.0 final drives. I may do the same.
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
redpoint5 (06-27-2018)
Old 06-28-2018, 01:59 PM   #17 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,077

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 54.69 mpg (US)
Thanks: 2,904
Thanked 2,560 Times in 1,586 Posts
Quote:
Originally Posted by redpoint5 View Post
I know the RSX has a taller FD, and was hoping there might be used parts for relatively cheap. I'm not willing to drop more than about $200 on the mod. 3.4 sounds too tall though, as I wouldn't want to start from a dead stop in 2nd gear. Something around 4.0 seems ideal for me.
While I'm thinking about it, it's very common for people with a 4.389 FD to want to swap out for a 4.7 or shorter. You can probably find oodles of 4.3's for next to nothing on forums and eBay. Definitely less than a new 4.0, and still good for an 8% reduction in RPM.

Fun fact: TSX gearbox WITH a custom 4.059 final drive has similar gearing in 6th gear to the Insight's 4th gear. TSX 4th gear is equal to the Insight's SECOND gear.


Last edited by Ecky; 06-28-2018 at 02:24 PM..
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
redpoint5 (06-28-2018)
Old 06-29-2018, 01:39 PM   #18 (permalink)
Thalmaturge
 
Join Date: Mar 2011
Location: The edge of nowhere
Posts: 1,165

Spicy Italian - '13 Fiat 500 Abarth

eBike - '94 Trek Mountain Track 820

CHONK - '18 Honda Clarity
Thanks: 766
Thanked 643 Times in 429 Posts
I think of all the choices, I'd most want the L15...

Maybe you could hack up the stock intake to not be so tall?

Seems like that way would get you the best combo of gas mileage and fun...
  Reply With Quote
Old 06-29-2018, 01:45 PM   #19 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: New Zealand
Posts: 5,077

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 54.69 mpg (US)
Thanks: 2,904
Thanked 2,560 Times in 1,586 Posts
Quote:
Originally Posted by samwichse View Post
I think of all the choices, I'd most want the L15...

Maybe you could hack up the stock intake to not be so tall?

Seems like that way would get you the best combo of gas mileage and fun...
Unfortunately:

Deck height:
R18A/R20 - 230mm
K20 - 212mm
K24 - 231.5mm
B16A - 203.9mm
B18/B20 - 212mm
L15A - 220mm

So the L15A is between a K20 and K24 in deck height. Not a deal breaker in and of itself, but it sits vertically rather than tilted back like the K series, because the Fit's engine bay is tall but not very deep. I bet it could be made to work, but when you combine the lack of any aftermarket intakes, that the intake is plastic and thus can't be cut and welded, that there are no aftermarket gears (though the Insight and Civic Hybrid's final drives most likely fit), and that the mounts must also be fabricated, whereas Hasport has off-the-shelf mounts coming out for K motors, it's a tough sell for me. All else being equal, I'd take an L15B any day of the week.
  Reply With Quote
Old 06-29-2018, 01:56 PM   #20 (permalink)
Thalmaturge
 
Join Date: Mar 2011
Location: The edge of nowhere
Posts: 1,165

Spicy Italian - '13 Fiat 500 Abarth

eBike - '94 Trek Mountain Track 820

CHONK - '18 Honda Clarity
Thanks: 766
Thanked 643 Times in 429 Posts
According to this: a CRZ manifold is a bolt up:
https://www.crzforum.com/forum/do-yo...d-30-mins.html


https://ahparts.com/buy-used/2011-Ho...RTW000/84576-1


Maybe that would be a bit more doable?

  Reply With Quote
The Following User Says Thank You to samwichse For This Useful Post:
Ecky (06-29-2018)
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com