throttle body spacer???

[lovemyap1]

has anyone used a throttle body spacer on their s2k. does it really give better miles per gallon on gas? does it really add any power?

[lovemyap1]

what no one ever heard of a throttle body spacer?????!

[rickjkerstetter]

i have no idea

[DJJSR]

Let us know if you find out what it's supposed to do. I can't quite understand how changing the position of the throttle body on a port injected motor would make any positive difference at all. Might be snakeoil.

[Seattle2k]

snakeoil +1

[lovemyap1]

look on ebay they have them there. there are also other name brand companys that make them.

[aladdin20110]

yea do it and let us know.. haha

[desmo4]

One has to be very careful about changing the volume of the intake. I put a 66 mm throttle body (stock is 62 mm) on my car and with the stock ecu it has a cell. It is spiking the O2 sensor. With the Mugen ecu there is problem. You don't have to change much to require a different ecu.

Jonathan

[lovemyap1]

all i wanted to know was if someone has done this yet or tried it in the past....sometime times i feel like posting any kind of question on here is pointless. all you get is smart ass people that want to make jokes....thanks to those who take it serious. this site is to learn about the s2k not make jokes like a bunch of kids

[s2000isu]

I think youre the one who started off with the smart ass comment. Obviously no one had any valuable information. We didnt post anything. You said what no one ever heard of a tbs so we gave you the answers that came to our head. By the way if you ask questions like that maybe you should google first if you dont want those kinda answers. Just some helpful info from your friendly forum neighbor.

[D1sclaimer]

I would think it'd be the same as adding a bigger throttle body. Like adding a bigger throttle body, your intake manifold still only has the same size inlet which is less than the size of the spacer. It just tricks the ecu into throwing more fuel in the system like a throttle body. When my 68mm throttle body was on, low revs were like a v8, but I think I lost some high end since it was just shoving useless fuel into the system.

I also got worse gas mileage so I think the spacer would do the same. I think all the hype about the tb spacers is that it helps out your low revs.

Also, I think how they claim it gives better gas mileage is because they have diagonal slots in the spacer so it is like the tornado POS intake thingy which doesn't work either.

[sharptech1]

The threory behind the tb spacer is because the runner to cyl 1 on most cars is usually shorter than the rest (take a look at how much space you have between the tb and cyl one. Not much lenth.) and ends up running a little richer than the rest of the cylinders. What a tb spacer does is lenghen the distance to 1. better atomize fuel, and 2. get more air to that number one cyl. Now in doing this you also create more torque hence the longer the intake runner the more torque you ultimately make. On honda and other high revving motors the extra inch or so makes a huge difference for that number one cyl at the higher end of the rpm band. Now why honda did not do this from the factory, because the whole intake track was "tuned" for the specific fuel economy and power they wanted. Once you start altering you change that tune, and that is where you will pick up the power. Example: My friend bought one on his my02 only that was the only mod besides a k&n filter, he dyno'd 192.4hp & 134.5trq stock, he but on the spacer and he dyno'd 192.6hp & 137trq. So he gained little torque. then we put on my 01 which has 63mm with test pipe exhaust, aem v1 cai, vafc. Before I put down 202whp 147trq. put spacer on without touching vafc, 206whp 152trq then noticed I was way leaner from 7k and up so we adjusted vafc went again and put down 208whp 155trq. So after all is said and done is it a miricle mod? No, I don't really feel a whole lot on the street maybe a little at 8.5k to redline but thats about it. But if you can find it pretty cheap and have supporting mods 6whp and 8trq isn't too bad imo.

[desmo4]

I"m going put my stock TB back on when I return from my trip.

Jonathan

[lovemyap1]

its all good it really what not that bad...this site is usually full of smart ass thou thats all. wrong mood i guess my bad. but see someone out there has used it and it has great results thats all i wanted to hear.. thanks

[jagg]

hey Lovemyap1,

I've seen it done on a chevy 2.8L V-6 with the old fashioned TBI setup.....good results, fuel economy did suffer some.

jagg

[lovemyap1]

is is supposed to give better gas miles but i really care about the added torque

[philiam]

There's no free lunch. Tune for more power, get less mileage. You want better mileage, drive slower. But who buys a stewie to drive slower?

[jagg]

I'm with Phil on this one.....If a throttle body spacer plate enhanced fuel economy, and provided more torque, it would already be on your engine....Free lunch has been thoroughly researched, and the results are less than poor. My guess is that it has less of an effect on an engine like the S2000's, than it would have on a more antiquated powerplant.

jagg

[fatality122887]

a lot of people write TB spacers off befor they even finish reading the name. i put one on my 07 civic Si and it made a pretty good difference. all i had was the TB spacer a K&N filter and a 60mm catback exhuast. when i raced my buddy at the end of 3rd gear i was 1.5 car lenghts ahead of him. then he got the filter and the TB spacer and when we raced i was only a 1/4 car length ahead of him.

[DJJSR]

I'd file this under "Placebo GT" speed parts, unless somebody has dyno sheets showing a comparison.

[flyingarmadillo]

TB spacers make no difference on a port injected engine. They will on throttle body injected and carbureted motors the idea being that they give the air fuel mixture a little more time to even out and give smoother airflow through the manifold. They're snake oil on our motors and on any injected motor except for one with TBI (which no body uses anymore). I've never seen a verified dyno run and no manufacturer of them is willing to allow an objective independent test on a dyno. You'd do just as much good buying one of those $40 electric powered turbos.

[fatality122887]

i used 2 have a 07 si and here is a dyno of the spacer on an 07 si. which has a similar engine set up. and it was done by an independent owner not a company. there is another one i can post but its a lot longer 2 copy past. so i will save the reading. i was skeptical of the spacer untill i seen this post and then i decided 2 get it and well the gein is dead on.

Originally Posted by bizzybearfigiblue

These are SAE corrected numbers.... my car is stock other than the spacer we added on the second run....

w/o spacer: 190.9hp & 144.4tq

w spacer: 195.4hp & 146.0tq

an increase of 4.5 peak hp... midrange is an average of about 2hp but u can see for urself... enjoy dyno pix....



w/o spacer:


w spacer:

yes it not that big of a gein but its a really cheap part. on my si the spacer, k & N drop in filter w/ a gutted stock airbox w/ lower resonater removed leaving the pipe down behind the fog light cover for a pickup, geined more than the F5 fujita intake i had. it didn't sound as cool but the car ran a lot better, no heatsoak, no hezitation, perfect throttle respons and a lot more low end then it had 2 begin with! granit the s2k has more low end than my si did i still could use more down there.

[MutantCheese]

I had an 06 civic si with throttle body spacer and it did, along with my other intake/exhaust mods give a slight increase. i wish that the TB spacer from my si would fit on my 08 s2k.

[Kalm_Traveler]

These can help a little as previously mentioned.

One thing to keep in mind about power VS economy though:
If you are gaining power by improving efficiency your economy potential goes up linearly with it. IE, a good port n polish of the head and ENTIRE intake manifold; reduced rotational mass, etc