Holset speccing?

[kcw 1]

Been looking into these seem to be the cheaper alternative to Garrett dual bb but with similar spool ups and are ultra stong, but they dont seem to have an A/R as such. The one i was looking at had some specs but they mean nothing to me can you gurus help me out, heres what i've got . . . .

82mm compressor wheel

56mm inducer

12cm2 T3 compressor housing

Hope that means something to somebody and can help me out lol

Ken

[FishWick 21]

Compressor wheel and induder refer to the same wheel, so that one has an 82mm exducer with 56mm inducer.

T3 is a common flange type, most people go with that.

Without the turbine wheel diameter, it's difficult to match it to a Garret but the GT35R also has an 82mm exducer, but a larger 61mm inducer.

The inducer part of the compressor wheel is what pulls air into the turbo. The Exducer then compresses it. The turbine wheel only has one role and will be quoted with a single diameter.

What model of Holset is it? I can probably find out some info on it.

It's the Borg Warner turbos that are tanks. Holsets are no stronger than the equivalent Garretts.

[kcw 1]

My mistake I though the holsets were truck based and therefor tanks lol

The model itself was an HX35 if that helps.

Ken

[FishWick 21]

LOL, and I meant Borg Warners are tanks in terms of petrol engine use :-)

OK, so it seems the HX35 is an old cummins diesel engine turbo, which Holset say is good for up to 280hp, LOL!

But after more digging, they can make 450hp on a petrol engine as they behave very differently.

The 12cm2 T3 is Holset's way of saying AR. The smaller the number, the smaller the AR. Most folk say upgrade to a 16cm2 turbine housing, or get a HX35/40 hybrid.

So in other words, it's usable, but make life easier for yourself mate and stick to the tried and tested Garrett's :-)

Also, if it's a diesel turbo, it may not last long on a petrol engine due to the increased heat levels.

[kcw 1]

Cheers for the advice Kev.

Ken