STD Tuning Engine Whats your thought on using this turbo on a OM617?

Whats your thought on using this turbo on a OM617?

Whats your thought on using this turbo on a OM617?

 
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toyfreak
K26-2

46
10-19-2011, 12:32 PM #1
I found this garrett vnt-25 for sale in brand new condition. The stats on it are: The compressor inducer measures 1.567"/39.8mm the exducer is 2.025"/51.4mm the turbine wheel inducer 2.076"/52.7mm the exducer is 1.819"/46.2mm and is capable of a 250+ H.P.
My goal on power is as much as I can get down low without a myna pump. I have to push around 42" tires, so getting them going will be important. I noticed that FI had almost 200 lb-ft of torque with just a vnt and alda adjustment. I think something like that or a little more would do me good.

Do any of you think this turbo will give me a good amount of boost off the line? I will be adding any necessary supporting mods to not melt this engine. Big Grin

P.S. Any thoughts or suggestions on small twin scroll turbos vs vnt?
This post was last modified: 10-19-2011, 12:46 PM by toyfreak.
toyfreak
10-19-2011, 12:32 PM #1

I found this garrett vnt-25 for sale in brand new condition. The stats on it are: The compressor inducer measures 1.567"/39.8mm the exducer is 2.025"/51.4mm the turbine wheel inducer 2.076"/52.7mm the exducer is 1.819"/46.2mm and is capable of a 250+ H.P.
My goal on power is as much as I can get down low without a myna pump. I have to push around 42" tires, so getting them going will be important. I noticed that FI had almost 200 lb-ft of torque with just a vnt and alda adjustment. I think something like that or a little more would do me good.

Do any of you think this turbo will give me a good amount of boost off the line? I will be adding any necessary supporting mods to not melt this engine. Big Grin

P.S. Any thoughts or suggestions on small twin scroll turbos vs vnt?

led-panzer
Holset

541
10-19-2011, 01:16 PM #2
It seems a bit small. I'd consider my 2056 small and I plan to upgrade to a larger vnt some time next year. That's not to say it wouldn't work, the low end power would be fantastic but the mid and upper rpm range would suffer.

1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake
led-panzer
10-19-2011, 01:16 PM #2

It seems a bit small. I'd consider my 2056 small and I plan to upgrade to a larger vnt some time next year. That's not to say it wouldn't work, the low end power would be fantastic but the mid and upper rpm range would suffer.


1984 300D 4-speed ~200,000 miles
7.5mm M-pump, GT3582 turbo, F-Tune Performance intake/exhaust manifolds, A/A intercooler, 315 nozzles, Enlarged prechambers, Bosch 044 feed pump, Custom lightweight flywheel with 240mm clutch, Lowered, 17" AMG rims - 300 hp OM617 project
1985 300D 280,000 miles RIP
2001 F350 7.3 DP tuner, 4"exhaust, S&B intake

toyfreak
K26-2

46
10-19-2011, 04:00 PM #3
It doesn't seem too much smaller than the k26 I have right now. I only get 8-9 psi max out of it and if I can get the same performance in the high end, but with a great improvement down low I think I could be happy with that. Of course, if I can improve the power all around I would like that even more. Maybe I should look into making a compound set up.
K26 #'s from B&W:
comp wheel O.D. 2.6"
comp inducer 1.73" or 44mm
turbine wheel OD 2.52
turbine wheel exducer 1.88" or 48 mm
turbine A/R 6^2 cm

What about a twin scroll with quick spool valve?
This post was last modified: 10-19-2011, 04:02 PM by toyfreak.
toyfreak
10-19-2011, 04:00 PM #3

It doesn't seem too much smaller than the k26 I have right now. I only get 8-9 psi max out of it and if I can get the same performance in the high end, but with a great improvement down low I think I could be happy with that. Of course, if I can improve the power all around I would like that even more. Maybe I should look into making a compound set up.
K26 #'s from B&W:
comp wheel O.D. 2.6"
comp inducer 1.73" or 44mm
turbine wheel OD 2.52
turbine wheel exducer 1.88" or 48 mm
turbine A/R 6^2 cm

What about a twin scroll with quick spool valve?

 
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