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[GastronomicKleptomaniac]

When driving, er, briskly, there seems to be a flat spot around 4000rpm, which IIRC is the revs that the multirams activate? Once I've fitted my spangly new exhaust, I'll be investigating - after checking the vacuum pipes routing and fit, anything else I should be looking for?

[feeutfo]

Flat spot... Or a step?

IME multi ram failed feels flat below 4k then takes off above 4k.

If a genuine flat spot, I'd check cam timing and for.... Maybe a Blocked exhaust. See what happens I guess.

[GastronomicKleptomaniac]

Genuine flat spot - pulling through from 50 leptons* up through 3rd to 85 leptons, it pulls, then flattens about 3900-4000rpm, then pulls again.

*unit of speed, not dissimilar to MPH but on a *cough* private road....

[JamesV6CDX]

worth trying to actuate them both using software to see if working OK?

[GastronomicKleptomaniac]

worth trying to actuate them both using software to see if working OK?

That would be brilliant, sadly I don't think anyone has a Tech2 within 100 miles.

On the note of the blocked exhaust, I'll be taking it out tonight so will see if the new one has had any effect.

[PhilCavSRi130]

Is it just a split second of a flat spot then it goes again?

If so this is as the dual ram comes in and is normal on the v6's. If its more than a split second will be something within the dual ram system holding it back i.e. broken vac pipe or faulty valve etc.