View Poll Results: Will polishing the inside of an intake manifold improve performance?
Yes, it will improve performance
0
0%
No, it won’t do anything at all
3
100.00%
No, it will reduce performance
0
0%
Voters: 3. You may not vote on this poll
D17VTECPOWER threads consolidated - how a member should not behave
Super Moderator
Joined: Jun 2012
Posts: 5,073
Likes: 2,096
From: Ohio
Rep Power: 225 
Re: How much faster with a 5 speed?
In my EX in 5th 70 mph was around 3,400 rpm.
The speed at redline for each gear is below.
1: ~35 mph
2: 60-65 mph
3: 80-85 mph
4: Not really sure, 110-120?
5: Obviously will never be reached.
The speed at redline for each gear is below.
1: ~35 mph
2: 60-65 mph
3: 80-85 mph
4: Not really sure, 110-120?
5: Obviously will never be reached.
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Re: How much faster with a 5 speed?
Very helpful, thank you very much. Since your car runs at 3400 at 70, I think 5th is actually a lower gear than my auto. My auto would be at around 2800-3000 going 70. What kind of gas mileage do you get on the highway?
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Re: How much faster with a 5 speed?
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: How much faster with a 5 speed?
DX, LX, and EX all have the same part number for both the manual and automatic transmission,
Dude, it's an econobox. Not a race car.
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: How much faster with a 5 speed?
You were given incorrect information..
Grab any online Honda dealer parts catalog and compare for yourself.
https://estore.honda.com/
Grab any online Honda dealer parts catalog and compare for yourself.
https://estore.honda.com/
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 
Joined: Dec 2008
Posts: 15,180
Likes: 1,606
From: TN
Rep Power: 368 Re: How much faster with a 5 speed?
Did you look into a dyno chart to tell that 4k RPM have too low torque? (power does not help acceleration, torque does - engine 101)
Joined: Dec 2008
Posts: 15,180
Likes: 1,606
From: TN
Rep Power: 368 Re: How much faster with a 5 speed?
Darn that’s good mileage. I am lucky to get 30 on the highway. I have a few issues that could be hurting my mileage though. As for the gearing being different, I’ve heard that too. However, I called a local Honda dealer and asked them, and they told me that the DX, LX, and EX all have the same part number for both the manual and automatic transmission, so who knows.
and 4k have plenty of torque, but then my VTEC is controlled by the ECU which is faster and smarter than me and i am smart enough to know that.
and I beat the hell of this car. Better than staying in the internet doing mental masturbation
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: How much faster with a 5 speed?
Most of the time we don't need to know any of that. (I've never ever needed to know chassis codes like EM2 or whatever at work. That seems to be a forum user and tuner gooner thing. LOL)
Year and model are sometimes all that's needed, other times trim level and body style makes a difference.
Parts catalog uses VIN, and these days even wiring diagrams on newer stuff can be chosen by VIN.
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: K24 vs. K20?
Fuel consumption would probably also
DO you realize how much gasoline you can buy for the cost of any swap you're contemplating?
Registered!!
Joined: Nov 2013
Posts: 380
Likes: 3
From: Raleigh, NC
Rep Power: 156 Re: Cheap sound system upgrade
The speaker itself does not "pull" wattage. It receives a current from the headunit to move the speaker cone. This current varies throughout time in order for the speaker to produce different notes. So the speaker isn't requesting any amount of power, it only receives what is sent to it by the headunit. Whereas if you turn your headunit to max volume, it's going to request amperage on the electrical system.
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Re: How much faster with a 5 speed?
I don’t have a switch anymore, I now have a VTEC ECU, which controls VTEC automatically.
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Re: How much faster with a 5 speed?
And FYI, the RPM where peak horsepower occurs is where the maximum acceleration potential is because the engine is capable of doing the most work. Let’s say I have 2 completely identical cars, both have a CVT. Car 1 is programmed to hold the engine at the RPM where it makes peak HP and car 2 is programmed to hold the engine at the RPM where it makes peak torque. Car 1 would accelerate faster because it would have higher wheel torque.
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Re: Cheap sound system upgrade
Because the power wire actually carries power and a headunit can potentially pull several amps of power from the electrical system. So an upgraded wire gets more power to the radio faster than the smaller wire.
The speaker itself does not "pull" wattage. It receives a current from the headunit to move the speaker cone. This current varies throughout time in order for the speaker to produce different notes. So the speaker isn't requesting any amount of power, it only receives what is sent to it by the headunit. Whereas if you turn your headunit to max volume, it's going to request amperage on the electrical system.
The speaker itself does not "pull" wattage. It receives a current from the headunit to move the speaker cone. This current varies throughout time in order for the speaker to produce different notes. So the speaker isn't requesting any amount of power, it only receives what is sent to it by the headunit. Whereas if you turn your headunit to max volume, it's going to request amperage on the electrical system.
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: How much faster with a 5 speed?
Car 1 is programmed to hold the engine at the RPM where it makes peak HP and car 2 is programmed to hold the engine at the RPM where it makes peak torque.
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 EPS conversion pro’s and con’s?
So I have been thinking about what my next upgrade will be. One possibility is an EPS conversion with an EPS system from an EP3 Civic or a hybrid. I have a list of pro’s and con’s that I put together. I would appreciate any feedback on my list, as well as feedback on weather I should convert from hydraulic assist to electric assist. Thank you in advance.
EPS conversion benefits:
Less parasitic drag on the engine
One less fluid to worry about
Won’t lose steering assist if the engine stalls
Frees up room in the engine compartment
Possibly a tiny bit of weight reduction
One less thing to worry about when I do a K swap
Possible downsides to an EPS conversion:
Cost (obviously)
More load on the electrical system
Possible reduction in steering feedback
Complexity
If anyone else have any input or anything else to add to the list, I’d really appreciate it. Thanks.
EPS conversion benefits:
Less parasitic drag on the engine
One less fluid to worry about
Won’t lose steering assist if the engine stalls
Frees up room in the engine compartment
Possibly a tiny bit of weight reduction
One less thing to worry about when I do a K swap
Possible downsides to an EPS conversion:
Cost (obviously)
More load on the electrical system
Possible reduction in steering feedback
Complexity
If anyone else have any input or anything else to add to the list, I’d really appreciate it. Thanks.
Last edited by D17VTECPOWER; Nov 5, 2018 at 09:58 AM.
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 
Registered!!
Joined: Feb 2018
Posts: 296
Likes: 0
From: Forest Park, IL
Rep Power: 103 Re: EPS conversion pro’s and con’s?
my first post here was due to EPS issues. i'm not a fan.
this idea is one you should just completely forget about. there is no benefit here and there is no way you'll ever get it to work anyways. you'll never get your JDM honda stream dinosaur ecu to tell the eps module how fast the car is moving so it can determine how much to assist. right there you should scratch this idea from your head.
my first few civics were manual racks and THAT would be the upgrade, IMO. no lines, no wires, no parts to connect, disconnect, or fail, plus more room to work. 1991 was the last year for this beautifully simplistic steering, IIRC
this idea is one you should just completely forget about. there is no benefit here and there is no way you'll ever get it to work anyways. you'll never get your JDM honda stream dinosaur ecu to tell the eps module how fast the car is moving so it can determine how much to assist. right there you should scratch this idea from your head.
my first few civics were manual racks and THAT would be the upgrade, IMO. no lines, no wires, no parts to connect, disconnect, or fail, plus more room to work. 1991 was the last year for this beautifully simplistic steering, IIRC
Thread Starter
Registered!!
iTrader: (1)
Joined: Nov 2017
Posts: 1,521
Likes: 39
From: Memphis, TN
Rep Power: 119 Re: EPS conversion pro’s and con’s?
my first post here was due to EPS issues. i'm not a fan.
this idea is one you should just completely forget about. there is no benefit here and there is no way you'll ever get it to work anyways. you'll never get your JDM honda stream dinosaur ecu to tell the eps module how fast the car is moving so it can determine how much to assist. right there you should scratch this idea from your head.
my first few civics were manual racks and THAT would be the upgrade, IMO. no lines, no wires, no parts to connect, disconnect, or fail, plus more room to work. 1991 was the last year for this beautifully simplistic steering, IIRC
this idea is one you should just completely forget about. there is no benefit here and there is no way you'll ever get it to work anyways. you'll never get your JDM honda stream dinosaur ecu to tell the eps module how fast the car is moving so it can determine how much to assist. right there you should scratch this idea from your head.
my first few civics were manual racks and THAT would be the upgrade, IMO. no lines, no wires, no parts to connect, disconnect, or fail, plus more room to work. 1991 was the last year for this beautifully simplistic steering, IIRC
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: EPS conversion pro’s and con’s?
Suggestion:
Sell all of your cars.
Buy a decent low mileage 8th gen Civic SI, it came from the factory equipped with just about everything you've talked about for your 7th gen cars
Don't modify anything. Maintain that SI and leave it the way it was built.
Sell all of your cars.
Buy a decent low mileage 8th gen Civic SI, it came from the factory equipped with just about everything you've talked about for your 7th gen cars
Don't modify anything. Maintain that SI and leave it the way it was built.
"Marge, anyone could miss Canada! All tucked away down there."
Joined: Feb 2016
Posts: 9,646
Likes: 1,283
From: Barrie, ON Canada
Rep Power: 223 Re: EPS conversion pro’s and con’s?
Last edited by Colin42; Oct 29, 2018 at 03:09 PM.
Joined: Dec 2008
Posts: 15,180
Likes: 1,606
From: TN
Rep Power: 368 Re: EPS conversion pro’s and con’s?
didn't you have alternator, battery issues?
adding more electrical load will surely help you a lot...
one of the most difficult parts of the EPS is calibrating it. Car manufacturers have a tough time doing it. Can't see you getting this done.
adding more electrical load will surely help you a lot...
one of the most difficult parts of the EPS is calibrating it. Car manufacturers have a tough time doing it. Can't see you getting this done.
Joined: Dec 2008
Posts: 15,180
Likes: 1,606
From: TN
Rep Power: 368 Re: How much faster with a 5 speed?
And FYI, the RPM where peak horsepower occurs is where the maximum acceleration potential is because the engine is capable of doing the most work. Let’s say I have 2 completely identical cars, both have a CVT. Car 1 is programmed to hold the engine at the RPM where it makes peak HP and car 2 is programmed to hold the engine at the RPM where it makes peak torque. Car 1 would accelerate faster because it would have higher wheel torque.
Registered!!
Joined: Nov 2013
Posts: 380
Likes: 3
From: Raleigh, NC
Rep Power: 156 Re: Cheap sound system upgrade
We're talking about less than 50 watts over less than a 10ft long piece of wire. If you were talking about 500 watts then you would definitely want to upgrade the speaker wire.
