hi all

for those that have brought my bop plates i must say thank you. i was influenced by my friend Mr Dolla to produce these plates because of my engineering background and my cnc cutting experience to produce these at a rate ( $20.00 shipped ) that everyone could afford. i also have produced the first ever 7th gen BOP plates as well with more plans of producing spacer kits for 6th gen at an affordable cost. i really dont make much from the sales of these plates after material , time , hardware and shipping comes into play with it all , but my satisfaction comes from the support and the ability to see everyone enjoying this mod.

the reason im writting today is that i have noticed a side affect to doing this mod. i work about 60 miles 1 way from home and i always check what mileage im getting to the gallon as i refuel often at a rate of 3 times a week. i went from the low 20's mpg. say about 20-23 mpg freeway and after the BOP install im getting about 28 to my highest of 31.3 mpg

i would like to hear from all the people who have brought my plates as to what mileage per gallon there getting after the install of these plates

thanks

Cory

 

Links not working??

 

the bottom link works but im unsure why the top one doesnt. its the same plate i just made a link for the 5thgen huys with the 3.5 motor

 

I would think about selling these things for at lest 50 plus shipping

 

i belive $50.00 is kinda of high and being im new $20.00 is a good price to establish a good buying name from. i had these at $25.00 until i dropped the price lower. like i said i dont make much from these but a little change and maybe a name from the future.

still no one with a gas increase?

 

How easy of a mod is installing the BOP? I'm very interested. Do you have some kind of instructions/walkthrough?

 

Thanks Cory, i gotta say you are an asset to this forum. keep up the good work!

i was getting around 28-29 freeway when i first bought the car

after my SRI and exhaust i was getting 32 mpg

after installing one of your block off plates i have see 35 pretty consistently under normal freeway driving. conditions. my city mpg varies too much for me to put down a number

 

all you need is a pair of pliers, or ratchet set (recommended)

it took me 5 min from start to finish.

it is by far the easiest mod you can do on your maxima

for 20 bucks shipped WITH hardware, this is the best quality block off plate in existence for the money. with every sale of Cory's BOP he is hooking it up real big.

@Cory: Let us know when you get the spacers up and running. i will be your first sale once you get them out.

 

this is the install thread

http://forums.maxima.org/5th-generat...l-how-2-a.html

thanks twenty eggs. you'll get the first pm on the spacers. i just have to get more testing done before i put my name on them

even though i would love to sell everybody these plates i would like to keep it on topic about the gas mileage

 

wow, even 1 mpg extra basically pays for the BOP in half a tank

+1

 

your right but i saw between 6 to 8 more in gas mileage increase. i would like to see what others have gotten

 

Does installing the BOP on a 6th gen throw any codes/trigger the SES light?

 

Cory the BOP arrived. Thanks a lot. Ill be installing it tomorrow as soon as im done with finals. Ill try to post pics or videos to confirm better gas mileage.

 

Not to sound like a Debbie downer but I think our trip computers are liars. I cannot see how are big @ss maximas are getting that good of gas milage. Just bc the computer reads that out dosent mean that's what your really getting all the time but i hope this info I'm reading is true . I would Iove to get that kind of gas milage

 

our engines are designed to run on little amounts of fuel when driving at 65mph without any stops and goes.. that is where the numbers are coming from.
under hard throttle our engines can get 7mpg. (i've done it)

i've actually done a test from full to empty where i measured the gallons and distance and my trip computer is accurate

 

Cory, can I buy a BOP for my 6th gen? I tried to PM you but it wasn't working.

 

I hear 31mpg and feel my leg being pulled at the same time. Hopefully these plates add at least a 1/2 mpg.

 

You need two more posts to pm people. Well, technically it's just one more but another won't hurt neither.

 

think about it dude. vias is an exhaust return system. its is literally dumping spent exhaust into your intake

exhaust is non-flammable because it is a byproduct of combustion (CO2). think fire triangle: oxygen, heat, fuel.
now think of a class B fire extinguisher (its pure CO2)

by dumping in exhaust (CO, and CO2), you lower the combustible saturation point of the fuel and air. it is made for getting better emissions and it hurts performance without a question. Thus the very point on a Block off Plate. no legs need pulling.

 

I am curious about this too? Will I still be able to pass emissions test with it on? Ohio just hooks the car up to a computer and checks the emission controls. Let me know if you have any feedback on that, I am interested in this. Do we lose any low end torque?

 

CT is the same way. they just do a scan and your done. no cel's will be triggered and you'll pass just fine. there is some low end loss around 25 mph but at that speed you would even miss it. the higher end torque from it is real noticeable.

 

Ummm no. You have this confused with EGR.

This is VIAS:




This is EGR:





The EGR plate is completely opposite the VIAS plate on the A34 IM and serves a different purpose.

 

I have a Mech. Engineering degree and PE licensing, but thank you for the lesson in incorrectness. Gasoline engines are only about 25% efficient at best. A lot of gasoline's energy is lost as heat, but that potential energy does not disappear. You can smell raw fuel on startup out of the exhaust in a vehicle. The VIAS is strictly intake based but increasing EGR flow can actually increase gas mileage. The purpose of the technology is to reduce emissions by burning some of that uncombusted fuel, but the flow rate is very low due to the small diameter of the tubing or piping associated with the EGR system. I am not in to hypermiling but there are plenty that are and have been experimenting with increasing this flow rate and seeing mileage improvements.

 

oh yea, your right...

the vias is what shortens and lengthens your intake manifold for smoother acceleration right?

so QwikKota, how does this give better MPG then? or are you saying we are all wrong about this?

 

Some 4th gen people remove EGR completely.
Our 5.5 gens have internal EGR (exhaust CVTC), no exhaust or intake manifold ports.
Not sure why the A34 went with external, but you can use a plate to clock it off to, as the 4th genners do.

I have Ph.D. in Maximology and am a Maxoligist by trade.

 

Just installed the plate today and I'm impress. For the cost and a half hour of my time it was worth it. The car literally hauls *** after 3500k. Haven't checked the mileage but hopefully it does work for that.

 

The removal of the VIAS changes the amount of air flow that the ECM expects to see at certain rpm's. At mid to low revs the BOP shortens the air passage normally present, and the ECM adjusts the fuel flow. The removal of an air restriction in the manifold helps increase horsepower (in theory), which could possibly explain why the mileage goes up, due to the need for less throttle to meet the same acceleration figures.

The reason the CVT years are not suffering from loss of low end torque is that on light pedal take offs the rpm's stay around 2500 where the VIAS would be off anyway.

I can believe 1mpg increase, which can be due to many other factors, it's very hard to get exact duplicate speeds, routes or ambient temps etc between checking. But if a simple system delete with the sacrifice of minor driveability is resulting in increases of 6mpg, I would be hard pressed to believe Nissan would not manufacture the car in this config.

I'm aware mentioning education and employment on the internet is futile but I tend to reply negatively when someone tells me I don't know WTF I'm talking about.

 

SOOOOOOO....

Have people noticed better gas mileage after the block off plate?

 

i was just reading thru this and i would like to say i have a 7th gen

CAI/P/H/E etc


did 26-28mpg on highway

+ BOP's

30-32mpg

i feel zero power loss low-mid range ive done about 10,000 miles since install.


sorry have coilovers kinda hard to take a steady pic in ny.

 

Not saying but just saying, the 09+ has a different IM.

 

This can however change when considering forced induction applications.

 

I know a lot of people have bought the BOP. I have been watching this thread to see if people would come and talk about their mileage gain or loss, but I have read only 2 people on here mention a gain. Can some more people chime in? Any gain or loss in MPG after BOP install?

 

I'm on my first tank of gas since the install. It looks good so far, but I'll update you in a few days

 

i wish i snapped a picture of my increase before i put my 22's back on. the wheels are a gas killer without any mods

 

Emile, just buy the damn thing already, its only 20 bucks. You wont regret it when you are on I45

 

It is definitely different, I do believe he is just stating he noticed an increase in his gas mileage via the FIRST 7th GEN BOP made by Cory. Attesting to the increase in gas mileage with the BOP

 

By definition, I almost want to say it will hurt MPG considering what the "mod" actually does. .

 

Too early to give a definitive answer, but according to the computer, I am +1.3 MPG better after installing BOP. I was at 21.3 and it now reads 22.6. I did reset MPG after installing the BOP so more miles and tanks of gas are needed.

 

Give one for free, I'll test it and give you a real answer...I am selling my car due to many issues with it and gas being one...

 

this was on a trip to western MA. I have 22 inch wheels on my car and i cruise at 80 mph. im not a racer at all. i did also need gas but i cant see it affecting the reading