TB Mod. What to remove

Guys,

I'm doing a TB mod on my spare TB. I run full emissions but will be removing my ACV since I will be running a Full To4B.

What can I take of the TB without effecting Idle and Driveability??

there is the whole wax idle thing that is connected to the first throttle plates. Do I need this since I'm removing the first throttle plates?? It looks like it holds Idle and also and Idle stop. From the picture I have seen it looks like it was removed.

thanks

Ian

 

You can remove the 2ndary throttle plates (the top ones, where there is no bottom one) and anything connected to them (vac actuator and valve).

that is the only thing that you can do that does not effect driveability and idle.

If you remove the thermowax assembly on the back, you won't have a cold start high idle (the cold start 1200 RPM idle that lowers as the engine temp comes up).

 

Should it not just idle then at whatever you set it to??

The thermowax start high rpm then lowers it right.

Thanks.
Ian

 

well basically when you remove the thermowax you will also remove coolant flow through the throttle body itself.

this does, a) remove hot coolant through TB which will let your intake air be cooler. b) removes cold start (3000rpm idle) but you must hold on to the accelerator for about 30 seconds if you have bad weather until your engine is at normal operating temp then your idle will be fine.

you can also remove the dash pots which actually just slow the throttle from decelerating as fast it can. visit the link in my sig. there is a link to a how to.

 

Sorry but I do not see a link on your sig??

Thanks for the info..

 

IAN, simply remove the Secondary Plates...the ones closest to the Air Inlet Duct. That Is where your gains are anyway. I did It like so and find no Idle/Drivabilty complications whatsoever.

Was I talking to you about removing various Engine components, along with your friend, at the Ottawa meet?

 

Yup you were talking to me.... I was with John. Looking at your FD alternator

I wonder if I hurt the Idle wax thing since I dropped the whole part in the parts cleaner Just trying to make the unit look simple and cleaner.

thanks,
Ian

 

Ian, I'm assuming that you won't be putting your new TB on until AFTER you've installed your E6K.

I wouldn't worry about idle and cold start issues with an EMS, since you can adjust parameters to compensate.

Silverrotor: I'm the other guy that was checking out your car...

 

Ha ha! What a trip out.

 

This is incorrect. The 3000rpm idle has nothing to do with the TB. The AWS solnenoid on the intake manifold controls this. The thermowax opens the throttle slightly until the engine warms up to prevent stalling. It only increases idle speed by 200-300rpm. The thermowax does not need to be removed as part of the TB mod.

 

Well I think I will leave this thermowax in. I removed the pots (Round diaphrams) and already have ported the TB. Just needs to be sanded smooth and sent out to be polished

Thanks.

Looking at the TB the TPS (E6K) will be a challenge to install.

 

A custom bracket to mount to Haltech's TPS isn't hard no make. The trick is to make it out of thich (3-4mm) aluminium so it can't flex. A few people have posted pics of their brackets. Search the 2nd gen and EMS sections.

 

The bracket should be easy but were everyone else puts it, is were my oil injection rod connects.

The one spring and bracket looks like it is not used but I don't want to remove something I do not know what it does.