Thread: compound turbo set up

Originally Posted by DRanged

Thanks mate

Why cant they make a 5BD1T!!!!

J

If you start machining down 6BD1s, make sure you do a few extras for the rest of us...

Originally Posted by isuzurover

Murray (ridjidij) has posted previously that his 4BD1T (truck) flywheel is 14.7 kg. My landie 4BD1 is 16.0 kg after at least 1 round of machining.

You could get a 4BG1 flywheel and housing http://www.klassenengine.com/PDF/Isu...er%202/4BG.pdf
Though that may be too heavy!

You know you want to swap to a 6BD1T

That looks like an industrial engine. The industrial versions of the 4BD1 have a heavier flywheel and housing like that.

Well went for a good run on & off road on the weekend. Other than the IP hunting up high it went very well. But on the way home I detonated the HP turbo and filled the intercooler with oil (not to mention the engine bay)

So weighing it all up it was fun BUT I am sick to death of the vibrations and will go back to a single turbo, get mt IP fixed and fit an overdrive.

To be totally honest, the only good thing about the truck box conversion is having a low first gear. I ran my R380 for 8 years with zero vibrations and a nice smooth shifter. So for the cost of the box, conversion kit and all the hassles with modding everything etc, 5K is a lot to spend for a constant vibration

Justin

Ouch, that's no good. Can you post up the photos? Broken shaft?

For flywheel comparison. I did a gearbox swap on my 2.2D work car. 22kg flywheel.

Justin,

Not sure why yours has a vibration but mine is smooth through the whole rev range, don't want to put anyone off the conversion.

I will do some more investigating when I get home for you.

Eric

Originally Posted by THE 109

Justin,

Not sure why yours has a vibration but mine is smooth through the whole rev range, don't want to put anyone off the conversion.

I will do some more investigating when I get home for you.

Eric

How much torque are you running and which flywheel?

Dougal,

I'm running the garrett 466409-2 which I think were fitted to the 4BD2T engines, that and only a mild fuel setting to give approx 550 deg before turbo.
It's a factory turbo motor and flywheel with the 300mm clutch. I had the engine and clutch components balanced when I rebuilt it.

Justin's is a N/A truck flywheel with 275mm clutch. Flywheel and clutch were balanced during the conversion.

There are a lot of variables,what do you think?

Eric

Originally Posted by THE 109

Dougal,

I'm running the garrett 466409-2 which I think were fitted to the 4BD2T engines, that and only a mild fuel setting to give approx 550 deg before turbo.
It's a factory turbo motor and flywheel with the 300mm clutch. I had the engine and clutch components balanced when I rebuilt it.

Justin's is a N/A truck flywheel with 275mm clutch. Flywheel and clutch were balanced during the conversion.

There are a lot of variables,what do you think?

Eric

the settings you are running is probably no where near what us few with vibrations are putting out...where your torque is being delivered with that turbo it is probably higher in the rev range so not as noticable as Dranged's problem...i started getting vibes once getting temp readings of over 700*c before turbo but that is no means to base any theories off.