New member - Volvo 2.4 TD

[ian2000t]

Hi all, I'm a new member. I don't actually have a VW diesel, but I have a Volvo 760 TD (D24TIC) which is the 6 cylinder 2.4 ltr VW IDI engine. Basically a 1.6TD with 2 extra cylinders.

I've done a few mods to it, but I'm considering replacing the turbo (currently a T3), and thought this might be a good place to come for advice.

Is there much experience of the 2.4 engine on this forum?

[RabbitJockey]

there are a few people on this forum who have them, everything is pretty well the same aside from the extra cylinders.  I am quite jealous of you, i'd love to have a td volvo, that engine has a good amount of potential.  Which transmission do you have?  Also there are lots of good turbo options for you

[Alcaid]

Put a Holset HE221W turbo on it!

[bajacalal]

The Volvo diesels are rare in this North America (but the do exist among the 80s Volvos and I've run into a few) and the turbo-diesels are even more rare.

From what I've heard, common issues with them here is heads that warp or crack, more than the 4 cylinder VWs and the timing advance is electronic and it gets stuck in the advanced position (too much advance), eventually killing the engine. Parts like hoses that are specific to that engine are also very expensive here.

If I owned one I would definitely run an intercooler, especially if you're going to feed it more boost, and a Volvo should have no problems with fitting an intercooler, since a lot of them came with one. As far as I know, no diesel Volvos were intercooled in the U.S. but some were in Europe. Does yours have one?

Anyway, how common are they in the UK?

[745 turbogreasel]

I have a couple of those.
I'd recommend head studs and metal gasket if you have it apart.

His is new enough it came intercooled
here I see TD's about 9-1 vs non turbo, the NA motors were too slow, and didn't hold up as well.

[RabbitJockey]

Put a Holset HE221W turbo on it!

Yeah even an hy35w would be perfect or a standard t3/to4e

[RabbitJockey]

Put a Holset HE221W turbo on it!

Yeah even an hy35w would be perfect or a standard t3/to4e

Or a gt2871 or there's a bunch of nice borgwarner turbos the efr stuff would be great I bet depends what you wanna spend

[hillfolk'r]

ive heard of em,never been up close to one.this is a cool place for us vw dudes and im sure you will get info here...welcome
we advise in crankin the boost and fuel whenever in doubt though.
im pretty sure u wont get a hard time here not like some other vw places,ahem

[Alcaid]

Yeah even an hy35w would be perfect or a standard t3/to4e

Or a gt2871 or there's a bunch of nice borgwarner turbos the efr stuff would be great I bet depends what you wanna spend

NONE of the turbos you mention are any good matches to a 2.4 IDI engine, too big and/or too old!

The HE221W is perfect for the 2.4! I have the compressor map, I've done the calculations and I've seen dynos on how this turbo spools. Surge line has lots of margin on these, 360deg thrust bearing straight out of the box, milled-from-solid compressor wheels and also easy to source for a fair price.

Only problem is building a pump for these I-6 engines that gives enough fuel and RPM

[745 turbogreasel]

Mine revs over 6K with just a gov mod, how fast do you want to turn it?

[Alcaid]

Mine revs over 6K with just a gov mod, how fast do you want to turn it?

Yep, but that's with the original 10mm piston and low-lift camplate in the pump, these engines deserves more fuel than that! These pumps are only rated 4800rpm crank speed in stock form, higher lift cam plate and/or bigger piston would make it even worse.

Off course, since we're talking IDI, we would like to turn them at least 7k rpm, but that means dropping the VE/VP pumps all together...

[RabbitJockey]

Yeah even an hy35w would be perfect or a standard t3/to4e

Or a gt2871 or there's a bunch of nice borgwarner turbos the efr stuff would be great I bet depends what you wanna spend

NONE of the turbos you mention are any good matches to a 2.4 IDI engine, too big and/or too old!

The HE221W is perfect for the 2.4! I have the compressor map, I've done the calculations and I've seen dynos on how this turbo spools. Surge line has lots of margin on these, 360deg thrust bearing straight out of the box, milled-from-solid compressor wheels and also easy to source for a fair price.

Only problem is building a pump for these I-6 engines that gives enough fuel and RPM

the compressor maps look good for it, but i have no real experience to say what actually works.  what does the he221w come on stock? billet compressor wheels .  can you send me the compressor map for my turbo files?  there is a good amount of 6 cylinder pump parts because of the 6bt engines i thought.

[8v-of-fury]

From 1984 with the release of the 6bt, they used a variety of different fuel systems before settling on Bosch in 1989. They came with a CAV, the P7100 Inline and the Bosch. The 6bt used a Bosch VE pump from 89-93, and even then half of them could have been the P7100 Inline pumps. 1994 saw the mainstream introduction of the de-tuned "P" pumps, the P7100 inline pump. They were so de-tuned from factory, it is why you see so many massive gains on the early 12V by just a few modifications.

[Alcaid]

Does the 6BT pumps turn the same way as the D24T pumps?

[8v-of-fury]

I think so? As people use them on the 4 cylinder TDI's.. and they turn the same way as the 2.4 I am assuming?