MODIFICATION , THROTTLE BODY ( 4G Accord / Ford 65mm + B16 Manifold / TB Spacer )

[NXRacer]

let me know how that goes Alex. I'm picking up an f22 TB this weekend.

[1988starter]

Well same deal but tommorrow I get paid so maybe I will pic up a gauge and possiable a vacume limiter or to

[shepherd79]

i compared the F22 and A20 TB, and they are the same.
the diameter on the outside is 2 3/16" so you won't gain a thing unless you have overbored TB.
i am working on the Map sensor tonight i will let you guys know if there is power diff tomorrow.

[Cyric_accord]

first, you have look at throttle position sensor. it may be diff, so when your computer gets the reading it is all wrong.
second, this mod is for 88-89 EFI accord only.
86-87 have single stage manifold and one TB bolt is diff.
i went to junk yard today and pulled the 4G TB and compared to 3G TB, man it was off. so i have to shave the 4G TB to fit on 86-87 intake manifold.

That's what I figured, but I plan on replace the TB along with a few other pieces this summer... so might as well add some power to it at the same time

[Low Tek]

so I can get a 4g TB to fit direct? hhmmmm... interesting

[shepherd79]

it won't fit on 86-87 acord direct, you will have to do some fabrication work.
but it will fin direct if you have 88-89 accord

[mag_pbg]

Ok not to sound stupid but where is the map sensor, and what does it do¿

[Low Tek]

so has anyone figured out how to reset the sensors for the bored 3rd gen TB, having problems with check engine light and the idle sticking too....

anyone?

[A20A1]

what size butterfly did you put into the port? Maybe you can try and rotate the throttle position sensor some, just make sure you mark the stock position before removing the headless bolts securing the sensor to the TB, and get new bolts to take it's place.

[86LXItooFAST4me]

so in order for the 4g TB to be installed it has to be port matched and a optional 4g map sen?

[1988starter]

to get it to fit on an 88 or 89 nothing has to be done but to get it to work properly I am not sure I still have yet to find time to work on it.

[86LXItooFAST4me]

im talking about an 86

[pixiesfan78]

ok even though im in a carbed 87 i often consider swapping to efi i would like to know whats up with this mod is it a hp increase or what? has anyone got it working correctly? if i end doing the swap id like to be able to get the 4gee tb from the get go see if i know its worth it meaning its gonna be faster then a webber carb i can get all the sensors i need from a 4gee and a manifold ect from a 3gee 88-89 efi . it would probably cost about as much as a webber. so let us all know what the deal is ide like to do this soon.

[1988starter]

Well I never did finish the project because I am going to sell my 3g but I am going to sell my 4g over bore tb robably on ebay with a buy it now at 160 as that is what these rare things tend to go for

[86LXItooFAST4me]

im getting sean to install my 4G on to my stock P&P intake that is also port matched with my head and the TB as we speak. hopefully ill get it all back by next weekend

[Civvy]

So...what happened?? somebody sold they're car, did nobody else finish the project?

[1988starter]

So...what happened?? somebody sold they're car, did nobody else finish the project?

I sold my car but I still have the TB I want 150 if you want it

[hondamanlxi]

its about time i carried my weight around here.

1)get an OEM ford/lincoln/mercury 4.6/5.0 t/b.
2)get the tps/wires( both look for 0.x v/5v)
3)wire it up identical to the honda one(same positions,not colors)
4)drill out the holes on the ford t/b to match whatcha need (i got 2/4 bolts ).
5)PORT MATCH!-this is manditory
6)re-route t/b vacuum lines to the manifold
7)bypass ALL cooling lines on the manifold
8)spend 30 seconds adjusting the linkage
9)seal it up and your done!

NOTES:
-You have to slot the tps and adjust clockwise.
-i have no idle problems period, but i have no idle/emisson stuff
-i did have a VERY noticeable gain with this in COMBINATION with headwork and the b16a mani.

[hondamanlxi]

its actually upside down compared to a ford

[hondamanlxi]

lol nm!

Im running a Power-plus B16a manifold. They are on ebay all the time for 150-200 bucks

[A20A1]

What manifold are you using that can be impotant.

lol nm!

Im running a Power-plus B16a manifold. They are on ebay all the time for 150-200 bucks

So the B manifold doesn't have the 2 air bypass holes like the stock A manifold. I wonder if the TB would still work with a stock A20 manifold or would the B series upgrade be almost required. ???


Yeah I deleted my earlier post cause I didn't want to get in the way of the how-to... just a heads up to everyone... all replies to this thread not relavent and not useful will be deleted when this becomes a how-to. part of the reason I'm editing this post instead of making new ones.

[bobafett]

looks like b16 (b series) manifold ;-)

[hondamanlxi]

im not sure what you mean by air bypass holes, but i was running a b series t/b on a stock mani with all vacuum/idle control shaved off. Please note that this t/b doesnt have any vac ports period.

[carotman]

What manifold are you using that can be impotant.

So the B manifold doesn't have the 2 air bypass holes like the stock A manifold. I wonder if the TB would still work with a stock A20 manifold or would the B series upgrade be almost required. ???

In fact it does. It needs those 2 holes for the Idle Air Control Valve and the Fast Idle valve. The A20A and B series intake manifold share the same Throttlebody design.

The way the FORD Throtthebody works, it looks like you will run into idle problems for sure. You will have to work something out for the Idle valve.

Also, the Map sensor must be re-routed somewhere else

[A20A1]

Yeah I was wondering if the holes where there or not...

On the throttle plate, it has a hole drilled in it... thats something I've seen on carb choke plates as well as throttle plates.