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-   -   R56 F21m turbo or mamba gtx ? Which is better ? (https://www.northamericanmotoring.com/forums/r56-hatch-talk-2007/326194-f21m-turbo-or-mamba-gtx-which-is-better.html)

Brainpp 04-15-2018 09:41 AM
F21m turbo or mamba gtx ? Which is better ?
 
Like the title says I am looking to upgrade my turbo to get some extra horsepower 😈. I’ve been looking at these 2 turbos And curious to see if anyone who has these bad boys installled would be kind enough to give me some insight on them as far as power they put down and reliability.
Mamba gtx
F21m

MarioKart 04-15-2018 03:37 PM
Neither, I have used both and the housing is cheap and the wheels are the wrong size to make boost quickly and to. It cause surging

Brainpp 04-16-2018 05:52 AM
Originally Posted by MarioKart (Post 4382888)
Neither, I have used both and the housing is cheap and the wheels are the wrong size to make boost quickly and to. It cause surging
what do you recommend?

BigBoost 04-16-2018 11:27 AM
I would recommend going with a GTD47

MarioKart 04-16-2018 12:32 PM
Originally Posted by Brainpp (Post 4382975)

what do you recommend?
send me an email MarioPalza@gmail.com
thanks
Mario

mQubed Motorsport Manic & RPM Power Tuning

MiniMoic 04-16-2018 07:41 PM
Prototype-r X51

Brainpp 04-17-2018 05:35 AM
Originally Posted by BigBoost (Post 4383109)
I would recommend going with a GTD47
I’ve been looking up the gtd47 and can’t seem to find a dyno sheet would you happen to know around what rpm the turbo kicks in ?

BigBoost 04-17-2018 11:16 AM
Welcome to the mini world ‘ where performance is nonexistent


The only reason why I suggest the gtd47 ‘ because I can actually vouch for it currently running on my high compression n14 running max 13psi ‘ obviously there are other guys running, at higher psi ‘ but with my set up any thing other 12 is a little sketchy’ I’ve got less then 4000 miles on it with no issues !!

I personal haven’t did any business with homeskillet’ but I’ve talk with him a few times an he’s a pretty legit Mandingo get a hold of him I believe he has some package deals , I think ��

keithmcgreggor 04-17-2018 02:56 PM
I am currently running F21M with no issues, but I am considering a switch to GTD47.

BigBoost, what compression ratio are you running? I went the opposite direction (9.5:1, 77.5mm).

J Free 04-17-2018 03:52 PM
I've got about 30K on an F21M with no issues and improved performance.

BigBoost 04-18-2018 12:24 AM
CP-Carrillo forged piston 12:5.1

Brainpp 04-18-2018 06:24 AM
I think I’m just going to go with the mamba gtx thanks guys for your input 🙏

N54 02-14-2020 01:38 PM
Originally Posted by Brainpp (Post 4383587)
I think I’m just going to go with the mamba gtx thanks guys for your input 🙏
what did you end up going with? What were the results?


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