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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 03-09-2022, 05:06 PM   #11 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 24,825
Thanks: 7,030
Thanked 7,911 Times in 6,473 Posts
Gasoline Fumes -- Duh! That's right, now I remember that it was a black alloy wheel with the cover.

I suggested the wheel looked better than the hubcap and they could take the other three off. Last I remember they wouldn't do that, or buy a replacement.

__________________
.
.

Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________

Back in my day there was so much toilet paper and eggs that we would throw them at the houses of our enemies

____________________
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
Gasoline Fumes (03-09-2022)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-10-2022, 07:49 PM   #12 (permalink)
EcoModding Apprentice
 
Blacktree's Avatar
 
Join Date: Dec 2011
Location: Florida
Posts: 203

The Prius Experiment - '07 Toyota Prius Base
90 day: 62.22 mpg (US)
Thanks: 44
Thanked 110 Times in 72 Posts
Just a quick update. I've done 2 fillups since installing the grille block. The average fuel economy before the grille block was 58 mpg. These last 2 fillups were 60+ mpg. So we're looking at 2-3 mpg difference (about 3-5% improvement).

However, I'm not ready to claim victory with the grille block yet. I'm sure it helps FE, but the question is how much. You see, the previous fuel economy data were taken during the winter (or what passes for winter in Florida). I was occasionally using the heater, which means the ICE was running more often. During these last 2 fillups, I hardly used the heater at all.

There is also some variability caused by the Prius fuel tank. It has a bladder in the tank, which makes fillups somewhat inconsistent. The guys on PriusChat say to do 3-5 fillups and take an average, for more consistent data. So I'm going to do one more fillup, then move on to the next mod.

Also one more comment before I hit the submit button: I want this car to be presentable in public. I know the Prius isn't exactly a show car, but I'd like the mods to look like they belong there. So the pipe insulation, pizza pans, etc are just proofs of concept. If they work as planned, then I will make "real" parts to replace them.
__________________
  Reply With Quote
Old 03-11-2022, 10:51 AM   #13 (permalink)
Master EcoModder
 
Join Date: Dec 2010
Location: USA
Posts: 1,119

Sport Utility Prius - '10 Toyota Prius II
90 day: 52.98 mpg (US)

Sequoia - '04 Toyota Sequoia Limited
90 day: 17.51 mpg (US)
Thanks: 330
Thanked 248 Times in 198 Posts
What is your drive cycle like? How many miles on the car? Local temps? What all have you replaced on it (new battery)?
__________________
"I feel like the bad decisions come into play when you trade too much of your time for money paying for things you can't really afford."
  Reply With Quote
Old 03-19-2022, 05:02 PM   #14 (permalink)
EcoModding Apprentice
 
Blacktree's Avatar
 
Join Date: Dec 2011
Location: Florida
Posts: 203

The Prius Experiment - '07 Toyota Prius Base
90 day: 62.22 mpg (US)
Thanks: 44
Thanked 110 Times in 72 Posts
Something came in the mail today.



They're motorcycle mirrors that I bought online. They should be easier to install than the pizza pans. And since I'm all about the low-hanging fruit, I think I'll do the mirrors first. I'll post updates when available.
__________________
  Reply With Quote
Old 03-20-2022, 03:41 PM   #15 (permalink)
EcoModding Apprentice
 
Blacktree's Avatar
 
Join Date: Dec 2011
Location: Florida
Posts: 203

The Prius Experiment - '07 Toyota Prius Base
90 day: 62.22 mpg (US)
Thanks: 44
Thanked 110 Times in 72 Posts
Quick update on the grille block. We now have 3 fillups since the grille block was installed. And average fuel economy has increased. Before the grille block, the average was about 57.7 mpg. After the grille block, it's about 60.7 mpg.

I still think some (if not most) of that is environmental variables. But I don't have the resources for a true scientific test. So I'm going to call it a win, and move on. Sometime in the future, I'll make a "grille block grille", so the car isn't driving around with foam rubber stuffed up its nose.

Also, I've decided to do the mirrors next. I got some bright orange yarn, for tuft testing. Should be fun!
__________________
  Reply With Quote
Old 03-20-2022, 10:04 PM   #16 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
Quote:
Originally Posted by Blacktree View Post
Quick update on the grille block. We now have 3 fillups since the grille block was installed. And average fuel economy has increased. Before the grille block, the average was about 57.7 mpg. After the grille block, it's about 60.7 mpg.

I still think some (if not most) of that is environmental variables. But I don't have the resources for a true scientific test. So I'm going to call it a win, and move on. Sometime in the future, I'll make a "grille block grille", so the car isn't driving around with foam rubber stuffed up its nose.

Also, I've decided to do the mirrors next. I got some bright orange yarn, for tuft testing. Should be fun!
Be sure to watch your coolant/transmission/other temps with a grill block, especially in summer.
__________________




  Reply With Quote
The Following User Says Thank You to ksa8907 For This Useful Post:
Drifter (04-23-2022)
Old 03-21-2022, 10:29 AM   #17 (permalink)
Master EcoModder
 
Join Date: Dec 2010
Location: USA
Posts: 1,119

Sport Utility Prius - '10 Toyota Prius II
90 day: 52.98 mpg (US)

Sequoia - '04 Toyota Sequoia Limited
90 day: 17.51 mpg (US)
Thanks: 330
Thanked 248 Times in 198 Posts
Quote:
Originally Posted by ksa8907 View Post
Be sure to watch your coolant/transmission/other temps with a grill block, especially in summer.
he should be good. I towed a 1000lb bass boat with a grill block on my prius for a couple summers around 100F with no issues.
__________________
"I feel like the bad decisions come into play when you trade too much of your time for money paying for things you can't really afford."
  Reply With Quote
Old 03-21-2022, 11:25 AM   #18 (permalink)
EcoModding Apprentice
 
Blacktree's Avatar
 
Join Date: Dec 2011
Location: Florida
Posts: 203

The Prius Experiment - '07 Toyota Prius Base
90 day: 62.22 mpg (US)
Thanks: 44
Thanked 110 Times in 72 Posts
Yeah, I've been watching the coolant temps. So far, so good. But it isn't summer yet. If worse comes to worst, I can make a removable section.

I avoided blocking the grille in front of the inverter, because I don't want to risk it. And the gasoline engine runs intermittently. I watch the coolant temp drop after the engine shuts off. And I think sometimes, it comes on just to maintain operating temperature.
__________________
  Reply With Quote
Old 03-21-2022, 08:48 PM   #19 (permalink)
EcoModding Apprentice
 
Blacktree's Avatar
 
Join Date: Dec 2011
Location: Florida
Posts: 203

The Prius Experiment - '07 Toyota Prius Base
90 day: 62.22 mpg (US)
Thanks: 44
Thanked 110 Times in 72 Posts
I did a thing!



I test-fitted one of the motorcycle mirrors on the right side of the car, and did some tuft testing. I got video footage of stock vs motorcycle mirror, from 2 different viewpoints (inside the car, and the camera on the window). I haven't had time to review the footage yet, but am eager to see the results.
__________________
  Reply With Quote
The Following 6 Users Say Thank You to Blacktree For This Useful Post:
Drifter (05-30-2022), freebeard (03-21-2022), Gasoline Fumes (03-21-2022), Joggernot (03-22-2022), mpgmike (05-13-2022), Xist (01-07-2023)
Old 03-25-2022, 05:57 PM   #20 (permalink)
EcoModding Apprentice
 
Blacktree's Avatar
 
Join Date: Dec 2011
Location: Florida
Posts: 203

The Prius Experiment - '07 Toyota Prius Base
90 day: 62.22 mpg (US)
Thanks: 44
Thanked 110 Times in 72 Posts
Just a quick update: I got a chance to review the camera footage. The stock mirrors weren't as bad as I thought. That was a surprise. But the smaller mirrors should still be an improvement.

I'm going to compile the video footage (from 2 different viewpoints) into a YouTube video. The video should be ready on Sunday. Have a great weekend!


__________________
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com