(07-03-2014, 08:58 PM)johnnwg Im looking into upgrading my turbo on my om617 and was wondering if changing my impeller wheel to a diiferent trim would be worth it. Where do I purchase a new impeller and whats the proper one to get. I will also be upgading my pump for more fuel. Any imput would be much appreciated!

John G

(07-05-2014, 07:19 AM)MFSuper90 If you are going to upgrade your pump, you might as well do your charger too. The stock charger is too small and will create to much backpressure with anything more than a stock pump.
Even with my stock pump turned up I trashed the stock charger in no time running high boost on it (15-18psi)

With a big pump, if you don't want big hp numbers and youd rather have faster spool I would go with a Holset he221 or an hx30. I really like the way mine performs, I just don't have enough fuel to satisfy it.

And you will likely need an intercooler to keep EGT's from sky rocketing

(08-01-2014, 12:51 AM)Captain America

(07-05-2014, 07:19 AM)MFSuper90 If you are going to upgrade your pump, you might as well do your charger too. The stock charger is too small and will create to much backpressure with anything more than a stock pump.
Even with my stock pump turned up I trashed the stock charger in no time running high boost on it (15-18psi)

With a big pump, if you don't want big hp numbers and youd rather have faster spool I would go with a Holset he221 or an hx30. I really like the way mine performs, I just don't have enough fuel to satisfy it.

And you will likely need an intercooler to keep EGT's from sky rocketing

I disagree.

I was one of the first (that I know of) to go with a 60 trim compressor wheel with otherwise stock Mercedes Garrett T3 60 Trim Comp Wheel Upgrade

So I upgraded the comp wheel first and nothing else after the turbo was oil starved and needed replacement. I was charged $400, for an otherwise new turbo... CHRA, Turbine wheel/shaft, and compressor wheel were new, Compressor housing was machined and original stock exhaust housing retained.

I turned the boost to 12-14 and left it. Now though... I have new injectors, HUGE prechambers, and a fuckin ton of fuel compared to stock, while only running 15psi. There simply is no need for more than 15psi unless you have a "superpump", and by that I mean one thats tuned with larger elements. I spool still around 1800 rpm like stock but can make full boost at 2k no problem if in high gear going very slow (insane amount of engine load) and I can rev to 6000 RPM no problem. Also i will add that I have maxed out my IP timing advance and that I am NOT intercooled yet and have not reached anything over 1100 degrees exhaust temp. She does breath fire out of the hood stack which is cool too haha

(08-01-2014, 07:40 AM)Simpler=Better

(08-01-2014, 12:51 AM)Captain America

(07-05-2014, 07:19 AM)MFSuper90 If you are going to upgrade your pump, you might as well do your charger too. The stock charger is too small and will create to much backpressure with anything more than a stock pump.
Even with my stock pump turned up I trashed the stock charger in no time running high boost on it (15-18psi)

With a big pump, if you don't want big hp numbers and youd rather have faster spool I would go with a Holset he221 or an hx30. I really like the way mine performs, I just don't have enough fuel to satisfy it.

And you will likely need an intercooler to keep EGT's from sky rocketing

I disagree.

I was one of the first (that I know of) to go with a 60 trim compressor wheel with otherwise stock Mercedes Garrett T3 60 Trim Comp Wheel Upgrade

So I upgraded the comp wheel first and nothing else after the turbo was oil starved and needed replacement. I was charged $400, for an otherwise new turbo... CHRA, Turbine wheel/shaft, and compressor wheel were new, Compressor housing was machined and original stock exhaust housing retained.

I turned the boost to 12-14 and left it. Now though... I have new injectors, HUGE prechambers, and a fuckin ton of fuel compared to stock, while only running 15psi. There simply is no need for more than 15psi unless you have a "superpump", and by that I mean one thats tuned with larger elements. I spool still around 1800 rpm like stock but can make full boost at 2k no problem if in high gear going very slow (insane amount of engine load) and I can rev to 6000 RPM no problem. Also i will add that I have maxed out my IP timing advance and that I am NOT intercooled yet and have not reached anything over 1100 degrees exhaust temp. She does breath fire out of the hood stack which is cool too haha

You can't talk about a hood stack and not deliver photos!!