Fuel Octain Rating - impact of using 87 octain?
08-31-2005, 05:55 PM
#1
BLUE
Thread Starter
Fuel Octain Rating - impact of using 87 octain?
OKAY - I've read in my manual that use of regular fuel (87 octain) only affects the cars performance. Does anybody no of any risks to the engine of using lower quality fuel?
08-31-2005, 07:25 PM
#2
Instructor
Join Date: Jul 2003
Location: Duluth Minnesota
Age: 45
Posts: 127
Likes: 0
Received 0 Likes
on
0 Posts
Egr
I am not positve but I think it might effect the EGR Valve. About 2000 miles after I started using lower octane fuel my EGR valve went out and the check engine light came on, it might just be a coincidence but my car only had 75,000 miles at the time. Thats my theory any way and I am sticken to it.
08-31-2005, 08:09 PM
#3
Racer
Join Date: Jan 2005
Location: Indiana
Age: 37
Posts: 494
Likes: 0
Received 0 Likes
on
0 Posts
your car engine might blow up!!!!
Just joking, but it is not recommended because of the pinging and poor gas milage and loss of the effiencey of vtec and the engine.
Just joking, but it is not recommended because of the pinging and poor gas milage and loss of the effiencey of vtec and the engine.
08-31-2005, 10:52 PM
#6
Originally Posted by WolfpackBill
All of the above are correct, other than the vtec part. Our 1st gens don't have VTec.
On top of that, lower gas mileage and reduced power.
On top of that, lower gas mileage and reduced power.
..... at least we have VIS which is kinda cool!
Trending Topics
09-01-2005, 08:58 AM
#9
TL no more!
Here's the info:
Variable Induction System
For the 3.2-liter, a boost for both high-end power and low-end torque is provided by a Variable Induction System, similar to that used in the NSX. A unique two-level intake manifold - made of aluminum to save weight - provides three possible paths for air being inducted into the engine. The path is selected by three butterfly valves that are electronically controlled and actuated by intake vacuum. When the engine is running at less than 3300 rpm, air for the two banks of cylinders is strictly separated and is led through the longer of two intake paths for optimum resonance charge effect at low engine speeds. Between 3300 and 3900 rpm, the two larger butterflies open and air flows through the shorter path for best resonance effect in the midrange. Then at 3900 rpm, the third butterfly opens to provide a large plenum serving all cylinders. At this point, the resonance effect is reduced, but an inertia ram tuning effect takes over to boost high-end breathing and power output.
The 2.5 TL inline-5 cylinder engine is tilted to the right, 35 degrees from vertical. This has allowed the engineers to design a manifold with long, tuned intake runners to optimize engine breathing. Based on technology developed for the NSX, the intake manifold is a dual-stage design and increases both low-end torque and high-end horsepower.
Below 5000 rpm, the cylinder is fed by the primary runner. Above 5000 rpm, however, the engine vacuum opens a butterfly valve, allowing the passage of air through a secondary runner. This increases the volume of air entering the combustion chamber and also produces an inertia ram-tuning effect for more complete cylinder filling, increasing both horsepower and torque.
Source: Hondanews.com
Variable Induction System
For the 3.2-liter, a boost for both high-end power and low-end torque is provided by a Variable Induction System, similar to that used in the NSX. A unique two-level intake manifold - made of aluminum to save weight - provides three possible paths for air being inducted into the engine. The path is selected by three butterfly valves that are electronically controlled and actuated by intake vacuum. When the engine is running at less than 3300 rpm, air for the two banks of cylinders is strictly separated and is led through the longer of two intake paths for optimum resonance charge effect at low engine speeds. Between 3300 and 3900 rpm, the two larger butterflies open and air flows through the shorter path for best resonance effect in the midrange. Then at 3900 rpm, the third butterfly opens to provide a large plenum serving all cylinders. At this point, the resonance effect is reduced, but an inertia ram tuning effect takes over to boost high-end breathing and power output.
The 2.5 TL inline-5 cylinder engine is tilted to the right, 35 degrees from vertical. This has allowed the engineers to design a manifold with long, tuned intake runners to optimize engine breathing. Based on technology developed for the NSX, the intake manifold is a dual-stage design and increases both low-end torque and high-end horsepower.
Below 5000 rpm, the cylinder is fed by the primary runner. Above 5000 rpm, however, the engine vacuum opens a butterfly valve, allowing the passage of air through a secondary runner. This increases the volume of air entering the combustion chamber and also produces an inertia ram-tuning effect for more complete cylinder filling, increasing both horsepower and torque.
Source: Hondanews.com
09-01-2005, 06:44 PM
#14
another hi-jack...arg! VIS is a bad ass design...smart ass acura scientists
Originally Posted by WolfpackBill
Here's the info:
Variable Induction System
For the 3.2-liter, a boost for both high-end power and low-end torque is provided by a Variable Induction System, similar to that used in the NSX. A unique two-level intake manifold - made of aluminum to save weight - provides three possible paths for air being inducted into the engine. The path is selected by three butterfly valves that are electronically controlled and actuated by intake vacuum. When the engine is running at less than 3300 rpm, air for the two banks of cylinders is strictly separated and is led through the longer of two intake paths for optimum resonance charge effect at low engine speeds. Between 3300 and 3900 rpm, the two larger butterflies open and air flows through the shorter path for best resonance effect in the midrange. Then at 3900 rpm, the third butterfly opens to provide a large plenum serving all cylinders. At this point, the resonance effect is reduced, but an inertia ram tuning effect takes over to boost high-end breathing and power out
The 2.5 TL inline-5 cylinder engine is tilted to the right, 35 degrees from vertical. This has allowed the engineers to design a manifold with long, tuned intake runners to optimize engine breathing. Based on technology developed for the NSX, the intake manifold is a dual-stage design and increases both low-end torque and high-end horsepower.
Below 5000 rpm, the cylinder is fed by the primary runner. Above 5000 rpm, however, the engine vacuum opens a butterfly valve, allowing the passage of air through a secondary runner. This increases the volume of air entering the combustion chamber and also produces an inertia ram-tuning effect for more complete cylinder filling, increasing both horsepower and torque.
Source: Hondanews.com
Variable Induction System
For the 3.2-liter, a boost for both high-end power and low-end torque is provided by a Variable Induction System, similar to that used in the NSX. A unique two-level intake manifold - made of aluminum to save weight - provides three possible paths for air being inducted into the engine. The path is selected by three butterfly valves that are electronically controlled and actuated by intake vacuum. When the engine is running at less than 3300 rpm, air for the two banks of cylinders is strictly separated and is led through the longer of two intake paths for optimum resonance charge effect at low engine speeds. Between 3300 and 3900 rpm, the two larger butterflies open and air flows through the shorter path for best resonance effect in the midrange. Then at 3900 rpm, the third butterfly opens to provide a large plenum serving all cylinders. At this point, the resonance effect is reduced, but an inertia ram tuning effect takes over to boost high-end breathing and power out
The 2.5 TL inline-5 cylinder engine is tilted to the right, 35 degrees from vertical. This has allowed the engineers to design a manifold with long, tuned intake runners to optimize engine breathing. Based on technology developed for the NSX, the intake manifold is a dual-stage design and increases both low-end torque and high-end horsepower.
Below 5000 rpm, the cylinder is fed by the primary runner. Above 5000 rpm, however, the engine vacuum opens a butterfly valve, allowing the passage of air through a secondary runner. This increases the volume of air entering the combustion chamber and also produces an inertia ram-tuning effect for more complete cylinder filling, increasing both horsepower and torque.
Source: Hondanews.com
09-01-2005, 06:51 PM
#16
Racer
Join Date: Oct 2003
Location: westminster, ca
Age: 37
Posts: 278
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by ljmushock
I thought tho....only 3.2 motors had VIS, do 2.5's have it as well? Pretty cool!
Yes it does. The above states so. Below 5000 RPM, the primary butterfly is open. Above that, a secondary butterfly assists.
09-01-2005, 07:03 PM
#17
Originally Posted by GSteg
Yes it does. The above states so. Below 5000 RPM, the primary butterfly is open. Above that, a secondary butterfly assists.
09-01-2005, 08:06 PM
#18
Hurricane Game
Join Date: Dec 2004
Location: des moines
Age: 45
Posts: 694
Likes: 0
Received 0 Likes
on
0 Posts
if you're tryin to save money.....poorer gas mileage would lead to more gas used, so filling up sooner. to me it's a catch 22. i just bend over and pay the price for now.
09-03-2005, 10:18 AM
#19
Senior Moderator
Join Date: May 2003
Location: Better Neighborhood, Arizona
Posts: 45,641
Received 2,329 Likes
on
1,309 Posts
In the 3.2 motor I just get poor gas mileage and reduced power. Per dollar, I travel further on premium
09-03-2005, 02:55 PM
#20
Swift 3 B-A-N-G-E-R
Join Date: Aug 2004
Location: Salinas, CA ~to~ Yuma, AZ
Age: 41
Posts: 4,819
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Bluish
OKAY - I've read in my manual that use of regular fuel (87 octain) only affects the cars performance. Does anybody no of any risks to the engine of using lower quality fuel?
<~~~ surprised no one has said that this is the "affects" of using lower grade fuel...
Thread
Thread Starter
Forum
Replies
Last Post
MrHeeltoe
1G TSX Tires, Wheels, & Suspension
20
02-23-2023 01:54 PM
emailnatec
5G TLX Tires, Wheels & Suspension
29
09-28-2018 04:27 PM
joflewbyu2
5G TLX (2015-2020)
139
10-08-2015 11:16 AM
MrHeeltoe
2G TSX Tires, Wheels & Suspension
3
09-29-2015 10:43 PM
MrHeeltoe
3G TL Tires, Wheels & Suspension
0
09-28-2015 05:43 PM
