Om604 std Turbochoice - Printable Version

Om604 std Turbochoice - Printable Version

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Om604 std Turbochoice - BoostedBenz - 09-06-2016

Hi! New to this forum! i have 1989 W201 190E which i have owned in 13years now.

Ive just bought a Om604 from C220D and a Om601 pump With 8mm dieselmeken elments is ordered Smile

I already have a New unused oem Garret GT2860RS ball bearing turbo With T25 flens. this turbo is capabale tto 360Hp on
a gasoline car.
My Power goal is 300hp , is this turbo too small ?? to much backpressure ?

any thoughts? Cool

..
I

RE: Om604 std Turbochoice - barrote - 09-06-2016

Maybe u want to consider a VNT tech, for a 4 cylinder like that u have many choices available, and a lot better than any WG.
But in the end all will be determined by what u want to do with that engine.... dragster or streetracer...

welcome

RE: Om604 std Turbochoice - BoostedBenz - 09-07-2016

this car is meant to be a street racer, im gonna use a 5speed getrag from 2.3-16. talked With Ftune performance and they suggested a Holset he351w billett .

How fast will that turbo spool ? Angel

RE: Om604 std Turbochoice - F.R.A.S - 09-07-2016

The gt3071r a/r 0.63 single entry t3 did start to spool at 1500rpm on my om604 (0.1bar) and was completely seamless up to full boost @ 3000rpm. For 300hp the gt2860rs should work just fine. A little on the small side but it will be a great fun to drive.

The Holset on the other hand is a lot bigger, a bit more laggy and will perform more on top. However the billet wheel is lighter then the normal casted one and that will make you pick up boost faster. For a new om604 build I would probably use the he351w billet myself.

We have one on the (soon to be) Bonneville world record 2-liter om604 Smile

Cheers / F

RE: Om604 std Turbochoice - barrote - 09-07-2016

(09-07-2016, 01:31 AM)BoostedBenz this car is meant to be a street racer, im gonna use a 5speed getrag from 2.3-16. talked With Ftune performance and they suggested a Holset he351w billett .

How fast will that turbo spool ?

If its to be a street racer, then u wont be happy with a WG type turbine, or freefloat type . there are some schwitzer´s KKK wich rock , but those have a very narrow working band(RPM)
If u choose a VNT type like GTB22V its found on the OM642, later versions are ball bearing and super light core´s , they can be a/r .63 to .70, and with the geometry closed they can replicate a .40 A/R turbine, basically u´ll have a wider power band with it, when the engine comes to high rev´s (after 5k)this type of turbo will clog the exaust and the engine will not have the high RPM kick , but it will twist your getrag box most probably in the low ends....