Thread: late td5 or early puma?

The fam. will most likely prefer the Puma...but hey, you'll love it too. As Pat said, drive a TD5 then jump out and drive a Puma....it's chalk and cheese.

Originally Posted by Scallops

....it's chalk and cheese.

.....but don't try writing on a blackboard with cheese!

How does the TD5 go with a good VNT and a little tickle up of the ECU compared to the TDCi ?

not having driven a puma with a chip in it

Ive driven plenty of chipped td5's and one VNT'd td5 and my SOPDyno says that the VNT doesnt let you make any more power or torque overall but it delivers it in a whole new way.

the td5 has more CC up its sleeve and an extra pot to push the crank round with so paperwork maths says the td5 should be able to be pushed further than the puma

From what I've read on the ever reliable internet most of the reputable tuners in the UK still consider the TD5 to be the king of the mountain as far as tuning goes, (for now).

"and an extra pot to push the crank round with so paperwork maths says the td5 should be able to be pushed further than the puma"

Is formally called "Power Overlap" ie another cylinder firing while one is still on power stroke - is measured in crank angle

RF

Originally Posted by Blknight.aus

not having driven a puma with a chip in it

Ive driven plenty of chipped td5's and one VNT'd td5 and my SOPDyno says that the VNT doesnt let you make any more power or torque overall but it delivers it in a whole new way.

the td5 has more CC up its sleeve and an extra pot to push the crank round with so paperwork maths says the td5 should be able to be pushed further than the puma

That's the way I'd look at it too, but I think so far the UK tuners are getting slightly more out of the 2.4 than the TD5 (with VNT)

Uninformed and I backed to backed his stock or slightly de-tuned HS2.8TGV with 3" exhaust against my fuelled up Tdi and outright power was much the same, maybe even a slight advantage to the Tdi and it felt like it possibly revved a little better ? But the TGV had it all over the Tdi below about 1800RPM.
The Tdi had to move a 130 CC too with 255/85's, vs a 110 trayback with 235/85's, so it wasn't comparing apples to apples but an interesting although unscientific little exercise one evening.

I'm seriously thinking a worked over TD5 with a good VNT might be an easier/cheaper re-power for my Tdi than the 4BD1T (as blasphemous as that sounds )

I just don't think sticking a VNT on a TDi is worth the $, the TD5 has so much more potential and is overall a more robust design.

Originally Posted by Rick Fischer

"and an extra pot to push the crank round with so paperwork maths says the td5 should be able to be pushed further than the puma"

Is formally called "Power Overlap" ie another cylinder firing while one is still on power stroke - is measured in crank angle

RF

I think Dave might actually know that Rick

We had a good discussion on the torque impulse vs crank angle of a 4 vs more cylinders on a 4BD1 thread a few weeks back.