Turbo finally on its way out?

[ADV_93]

I run a TD04 and the way it's set up suits how i drive. Pootlin' around the city or in traffic, my turbo never spools, so i'm basically in a smokeless NAD and i get pretty good mpg. Then if i need a bit of power to over take a car or anything, above 3,000 rpm, it's there. If you have them set up properly they'll drive quite well, TD04's.

I always though if you're on boost at lower rpms (unless you're in a HDi) it will effect MPG's? Especially around town etc.

With respect to the turbochargers talked about in this, VNT's are certainly the way forward if you have the money and the time to set one up. You can make a pretty beasty XUD with the likes of a VNT. Only thing i'd say with a TD04 is, if you plant your foot at 2,000 rpm, don't expect a lot to happen until you're over 3,000-3,500 rpm.

My pumps set up pretty well with the k14 and I find I'll get pretty good mpg driving round until It gets on boost. I don't do much motorway driving anyway but when I do it will sit at 6-10 psi at 70mph which does burn the fuel faster. So that's a down side.

I'm still going to set a turbo up for when I do decide it's time but I probably won't be spending more than £250 all in.

I can get hold of a td04 pretty easy so it is still an option. I could really do with a ride in a few cars to get an idea of when and how the turbos talked about come on boost.

I see what piggys saying too, you want to be burning the fuel not bogging around with no boost for best mpg but there's a line.

Like I say though the car still shifts when I plant it. I've kept up with bmws and r32s till about 60-70 then they'll tend to take off...as expected.

You might be a bit heavy footed on motorways, could usually, playing with the throttle get it down to about 4-6 psi on a motorway around 70 mph.

Cost is down to where you get it from and what condition it's in. I'll tell you straight away, a rebuild for my TD04 (done just to be safer rather than sorry) cost me £185. Bosch pump, lines and injectors from a breakers cost me £50 and the turbo cost me £100 with the manifold, adapter plates and oil feed. I've spent probably top end of £400 on the build which is expensive, but i like to build it knowing it's going to work.

At slower speeds they don't feel any different, just the same rattly 306 we all love. But once the turbo is spooling it's completely different car. Different powerband, sound, feel (and turbo noises)!

Mine doesn't bog at all, i've played with the fuel compensator on the pump so the bottom end still pulls alright, but with minimal smoke (and Bosch pumps barely smoke at all unless you make them).