Hey everybody...I'm a newbie here. name's Ryan. I have a '97 F22b2 auto Accord. I'm new to Hondas, but not to cars or building. I just sold my 350+ hp Jeep Grand Cherokee a few months ago. I drive about 1000 miles a week as part of my commute to/from work, so the Honda is my new DD/beater for the winter now that I don't have a 4x4 for the fluffy stuff. I was able to get it for a song n' dance from a family member who no longer needed it. The automatic is not my trans of choice but for the price I was not in a position to complain.

Anyhow, I couldn't help but add a little power to my main means of getting around so I made myself a intake and purchased a 74mm inlet/68mm bladed TB from Hypersonic via Ebay (I was leery of buying Honda stuff on ebay but it said it was made in the USA so I figured I'd be OK). The TB looks decent (I do porting on the side and noticed the bore was slightly off-center, but whatever), but ran into a few issues when attempting to installing it.

Does anyone have a diagram for the throttle linkage for a F22b2 w/ automatic trans ? I know everybody probably thinks I'm a total 'tard, but the way the throttle linkage along with cruise control/kickdown is setup, it's a whole lot busier than what I'm used to.

Secondly, it looks like this TB is a bolt-on deal for a manual trans car, and I obviously dont have that. It looks like the TV cable bracket from my F22 TB will bolt up to my new TB without issue. Problem is, the damn screws holding it in are torqued to 1000000 ft lbs! Whats the easiest way to get those suckers out? Just grind the screw heads off and use new hardware when bolting it onto my new casting? I would buy the bracket new but I couldn't seem to find the proper part on RockAuto.com .

Thanks for all the help in advance.

 

Only thing I can think of that might help you with those screws would be a little bit of heat. I never had any issues taking my F22B2 throttle body apart.

If you are using the 68mm throttle body on a stock F22B2 intake manifold it probably won't work very well. Unless you have made modifications to the IACV and FITV ports in the intake manifold. The largest TB bore that you can reliably go with on a stock F22B* intake manifold would be 64mm (65mm is pushing it) If you have an aftermarket intake manifold with a 68mm intake port you should be good to go.

As for the throttle body linkage diagram not sure if this helps or not.


Edit* 64mm - 65mm

 

Just the person I hoped would answer! Thank you Ghost. I've read bits and pieces about your build and wish you well in your efforts.

I assume you mean 64-65mm and not 94-95mm. Just eyeballing it it looked like the stock F22b2 plenum inlet is a little smaller than my new TB. I know that isn't ideal but right now I can't have downtime for removing & porting the manifold. I'll have to order a spare to work on in my spare time.

Aside from port-matching the inlet itself, is there notable gains to be had from hogging out the plenum and re-working the runners? I assume the runners are sand-cast so they are rough in finish. I wonder if it would be worth it to run some 320 grit through the runners to enlarge them just a touch and to smooth them over.

 

Thanks

lol yeah I meant 64-65

It's not only that the intake port is too small now, you will not be able to port it out to match the 68mm. I'm pretty sure that the largest you will be able to go is 67 before you open up into the IACV port in the back side of the intake manifold. Unless the offset that you noticed will make allowance for an off center bore therefore making more room on the back side for the IAC port. Can you post pics of the throttle body?

On a stock F22B2 intake manifold it will be hard to clean up the sand/rough castings through the entire length of the runner. It can be done but it will take some time. as for the gains.....eh it's not like it's a performance manifold. But every little bit helps.

I am working on modifying a stock F22B2 manifold of my own. Making the upper plenum a bit larger in volume and shortening up the runners. Along with the porting and cleaning up the castings it should turn out OK. It's a work in progress.

 

Here it is.


I dont mind running it with the port mismatch (I realize it's not ideal) , as long as it will not create any drivability issues.