c20xe dbilas throttle bodies

[dc1984]

are they a worthy addition to an xe nova?

should i fit them or sell them, and would i need to get it mapped if i fitted them?

any advice would be great

thanks, david

[Nemesis]

Are they the ones that feed a common plenum? ie not fully open?

[dc1984]

there is a black cover that the air filter goes onto, is that what you mean mate?

[dc1984]

does this pic help?

[dc1984]

anyone?

[Sinpb98]

Once fitted, you should remap the ECU

[Nemesis]

You don't have an airflow meter so I don't see how the standard ECU would cope

[bo0n]

You will have to map if you want that it will work fine !
These throttle boddies comes withe the black plenum.
They got nice sound and are best tuning for induction engines with higher camshafts for the street.(my mind)
I got + ~40bhp with 260° Camshafts and used this car for normal day use in a x20xev
without working on the cylinderhead for about 3,5 years.
Now the head is complete worked and the engine should get new software for it , but i change the enginge to a turbo....
High level induction tuning is much expensive.

If you want a allday car with some race characteristics, put the throttle bodies in with some not too high camshafts , get the software update and have fun.

Here some pictures

[Gordo]

does this pic help?

The other side?
If it has the plenum between the intake opening and the actual bodies, then it's intended to be a direct replacement fitting, with the OEM AFM supposedly working with the OEM ECU to supply the additional fuel with the knock sensor retarding if there's a problem with detonation from the better cylinder filling. I think I'd do a dyno run, at least, to ensure it wasn't running a bit lean under full power - certainly I'd be changing the fuel filter and checking the car could maintain fuel pressure under load..
I'd expect it to be a good intermediate manifoild, between stock and TBs/carb's.
For a fast road engine, I think it'd do very well!

[Davey j]

They are supposed to run with the standard airflow meter and as such you are limited with the sorts of cams you can run on them. I'm not a fan of them tbh. Regal were claiming +30bhp on them but Total Vauxhall fitted a set years back on an X20XEV engine'd vehicle and got 15bhp on Regal's rollers and didn't have a huge amount to say about them in conclusion. For the £1200 plus fitting that was a fairly expensive day out for not a lot of gain.

[dc1984]

I ended up selling them on guys.