Plenum top off

[Duke Thrust]

Is there an easy way to get the plenum top off?

On my 4.5 stepper motor housing fouls the perforated metal sheet/finisher at the bottom of the windscreen. Not an issue for now as I keep getting water in the passenger footwell so have taken the finisher off anyway as I want to re-seal the screen/screen seal.

[Duke Thrust]

Done a search and is seems there's not a easy way. The 3 bolts the hold the stepper motor housing are very difficult to get to so bending the finisher is the most common way.

[phazed]

Remove the plenum bolts and gently bend the mesh as you remove it.

[spend]

Ditch the trumpets & go blended base end of problems ~ it'll slide away then

[A900ss]

spend said:

Ditch the trumpets & go blended base end of problems ~ it'll slide away then

Is the blended base a real imporvment in normal day to day sunday blasts? From what I read, it delivers a little more BHP at the very top end but loses everywhere else.

(Either way, it will be better than my trumpets at the moment )

[spend]

A900ss said:

Is the blended base a real imporvment in normal day to day sunday blasts? From what I read, it delivers a little more BHP at the very top end but loses everywhere else.

(Either way, it will be better than my trumpets at the moment )

msl:!!!!

You paid for & were happy with trumpets that were laid sideways over the ports.....

Now tell me that everyone talking about trumpets being better is not IMAGINING it

With a blended base properly welded up the possibilities & hence results are far greater than trumpets (they press in a circle & the manifold is still restrictive) as you can move the hole around ~ make it any shape you want & BLEND it down into the inlet. Do you want long & thin or short & fat ...;)

As I pointed out far easier to take the plenum off & no concerns ever about trumpets breaking free..

[Hoofa]

Blended, used one of Jools machined, very nice did some back to back testing on mine although supercharged showed a increase in mid range torques , well happy all I say is it works and think those stupid trumpets did nothing but impede air flow

I think he did some testing on a n/a car and saw similar results