AVO (MRT) 450 vs Vishnu Garret Hybrid

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Jan 23, 2003 | 05:00 PM

silverscooby

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AVO (MRT) 450 vs Vishnu Garret Hybrid

From what I've read the AVO 450 (or the MRT variant) turbo flows 650 CFM at 19 psi. The only problem I see is the price for that thing. The cheapest I've found online was $1900.

While looking for alternatives to this turbo I found one that sticks out. The Vishnu Ball-Bearing Turbocharger that is listed on their site for $1650. Since it doesnt list any flow rates I gave them a call. I was told that it flows 720 cfm @ 20 psi. Can anyone confirm this? That sounds too good to be true in all honesty.

Does anyone have any experience with either of these turbos? Any help would be greatly appreciated!

Thanks,
Jim

-edit-
I just got off the phone with Nick at MRT Performance. According to him, their 450 Turbo flows 755 cfm @ 20 psi. ! Can anyone confirm this???

Last edited by silverscooby; Jan 23, 2003 at 06:09 PM.

Jan 23, 2003 | 05:18 PM

1quikrex

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From: Perrin Race DP Perrin Up-pipe Blitz Nur-spec CB Blitz LM intake TXS UTEC GFB BOV

No that sounds about right considering the turbo is good for 500hp, I believe it is a Garrett GT30. If you are considering this turbo I hope you have a fully built bottom end.

Jan 23, 2003 | 06:07 PM

silverscooby

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You are the second person to mention that is a Garrett GT30. The other person suggested to me that it was a GT30 in a VF housing. I will give them a call tomorrow about it.

I have a Cobb Stage 2 bottom end.

Jan 24, 2003 | 09:06 AM

azscoobie

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Quote:

Originally posted by silverscooby
You are the second person to mention that is a Garrett GT30. The other person suggested to me that it was a GT30 in a VF housing. I will give them a call tomorrow about it.

I have a Cobb Stage 2 bottom end.

Jim. From what I know all of these are AVO turboworld turbos. AVO had an exhaust housing Cast to fit the Garrett wheel with the subaru bolt pattern. The MRT's are AVO's.. I would guess that the vishnu is as well but you better call to make sure. If the vishnu uses an IHI housing then get the AVO/MRT turbo. Most of the power and effeciency of the Garrett GT turbos comes from the Exhaust housing. The IHI is the lesser of the two housings. The compressor side of these turbos are Garrett based housings with GT wheels and they use a GT CHRA. Email Mike@vividracing.com. He has a Chart on these turbos.

CT

Jan 24, 2003 | 11:42 AM

silverscooby

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Thanks again!

I think I will go with the AVO/MRT unit if they can come off the price a little. If not, I'll stick with the VF22 for awhile. $1900 for just a turbo is steep!

Jan 24, 2003 | 12:41 PM

azscoobie

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Quote:

Originally posted by silverscooby
Thanks again! I think I will go with the AVO/MRT unit if they can come off the price a little. If not, I'll stick with the VF22 for awhile. $1900 for just a turbo is steep!

Yes it is and especialy since we do not have any US dyno #'s. At least I have not seen any. These might be great or they might be a waste of time. Until somebody gets one and has it tuned with supporting mods we will never know. If you budget is a bit more I suggest you call Nathan and have a chat.

CT