Thread: 300 TDi Torque/Power Curves

Originally Posted by rick130

stock and MTQ kitted torque curve.



Power curve.



Brazilian 300Tdi



2.8l wastegated and VNT (2.8HS) curves.

Any chance you've still got the stock vs MTQ 300tdi power curves Rick? Link is now dead.
I've got the curves out the 94 soft-dash tdi brochure, but the resolution is so low I can't read it.

Originally Posted by Dougal

Any chance you've still got the stock vs MTQ 300tdi power curves Rick? Link is now dead.
I've got the curves out the 94 soft-dash tdi brochure, but the resolution is so low I can't read it.

Just had a quick squiz on the old hard drive and couldn't find them but hopefully they are there somewhere.

Will have a more thorough search later as I want to look at them again too, was looking online for them the other day (the old image hoster went belly up)

Cheers. I've been monkeying around with 300tdi turbo sizing. First I had to baseline the original engine and turbo.
Then I ran a couple of compound turbo calculation examples using the existing turbo. I'm currently doing one at atmospheric pressure you'll find about 2,000m up.

It's very very interesting.

Can't find the pics on my old external drive, hopefully they are on a back up disc.

FWIW the MTQ/DTS kit used an MHI TD04-11G IIRC which boosts a hell of a lot earlier than the T250 and continues on.

Originally Posted by rick130

Can't find the pics on my old external drive, hopefully they are on a back up disc.

FWIW the MTQ/DTS kit used an MHI TD04-11G IIRC which boosts a hell of a lot earlier than the T250 and continues on.

The combo I'm looking at should be good for a hair over 400Nm at 2200rpm and leading onto 125kw. At 2000m altitude.
Without overstressing anything.
How much you want at seal-level depends on how hard you want to push it. Looks like 500Nm at 1800rpm is easy. But I'm not sure if the 300tdi or the ZF will stand for it.

Heaps of room beside the 300tdi in my latest RRC to fit this extra turbo and it's one I already had in my collection that I thought was worthless.

125 killer wasps with 400 torques is plenty,with bugger all lag of course. Pat

Originally Posted by Dougal

The combo I'm looking at should be good for a hair over 400Nm at 2200rpm and leading onto 125kw. At 2000m altitude.
Without overstressing anything.
How much you want at seal-level depends on how hard you want to push it. Looks like 500Nm at 1800rpm is easy. But I'm not sure if the 300tdi or the ZF will stand for it.

Heaps of room beside the 300tdi in my latest RRC to fit this extra turbo and it's one I already had in my collection that I thought was worthless.

That turbo is.......?

Originally Posted by kreecha

That turbo is.......?

I don't think you'll believe me.